akkartik
/
mu
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

5804 

Try to make the comments consistent with the type system we'll eventually
have.
This commit is contained in:
Kartik Agaram 2019-12-08 13:56:46 -08:00
parent a93cd189c9
commit 2a2a5b1e43
68 changed files with 1122 additions and 1078 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
050_write.subx
View File

@ -11,6 +11,26 @@ Entry: # just exit; can't test _write just yet
b8/copy-to-eax 1/imm32/exit
cd/syscall 0x80/imm8
# Since this is the first file of SubX code, a note about type comments.
# Eventually we'll build a slightly higher-level safe language atop SubX.
# Even though we don't have the safe language yet, we'll start thinking in
# terms of the higher-level types in comments.
#
# Mu will have two kinds of addresses:
# - 'ref' which is used to point to a unique element, because machine
# code can't store large types in registers.
# - 'handle' which can point to a heap allocation, different heap allocations
# at different times, or even at times nothing at all.
#
# The type 'address' can be obtained from either a ref or handle, but it can
# only be stored on the stack (say to pass objects by reference).
# Conversely, a ref can't be copied into another ref, only to an address (which
# by construction has a shorter lifetime).
#
# Beginnings of a lattice of types:
# You can convert a ref or handle to an address, but not the other way around.
# You can convert addresses to ints, but not the other way around.
_write: # fd : int, s : (address array byte)
# . prologue
55/push-ebp

14
051test.subx
View File

@ -80,26 +80,26 @@ $check-ints-equal:end:
# length-prefixed string containing just a single newline
# convenient to have when printing messages and so on
Newline:
# size
Newline: # (ref array byte)
# size : int
1/imm32
# data
0a/newline
# every test failure increments this counter
Num-test-failures:
Num-test-failures: # int
0/imm32
# length-prefixed string containing just a single space
Space:
# size
Space: # (ref array byte)
# size : int
1/imm32
# data
20/space
# length-prefixed string containing just a single slash
Slash:
# size
Slash: # (ref array byte)
# size : int
1/imm32
# data
2f/slash

26
052kernel-string-equal.subx
View File

@ -1,9 +1,11 @@
# Checking null-terminated ascii strings.
#
# By default we create strings with a 4-byte length prefix rather than a null suffix.
# However we still need null-prefixed strings when interacting with the Linux
# kernel in a few places. This layer implements a function for comparing
# a null-terminated 'kernel string' with a length-prefixed 'SubX string'.
# By default we create strings as arrays of bytes, and all arrays have a 4-byte
# length prefix.
#
# However, we sometimes need to deal with null-prefixed strings when interacting
# with the Linux kernel. This layer implements a function for comparing a
# null-terminated 'kernel string' with a length-prefixed 'SubX string'.
#
# To run (from the subx directory):
# $ ./subx translate 05[0-2]*.subx -o /tmp/tmp52
@ -28,7 +30,7 @@ Entry: # run all tests
# compare a null-terminated ascii string with a more idiomatic length-prefixed byte array
# reason for the name: the only place we should have null-terminated ascii strings is from commandline args
kernel-string-equal?: # s : null-terminated ascii string, benchmark : length-prefixed ascii string -> eax : boolean
kernel-string-equal?: # s : (address kernel-string), benchmark : (address array byte) -> eax : boolean
# pseudocode:
# n = benchmark->length
# s1 = s
@ -59,17 +61,19 @@ kernel-string-equal?: # s : null-terminated ascii string, benchmark : length-pr
53/push-ebx
56/push-esi
57/push-edi
# s1/edi = s
# var s1/edi : (address byte) = s
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 8/disp8 . # copy *(ebp+8) to edi
# n/edx = benchmark->length
# var n/edx : int = benchmark->length
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
8b/copy 0/mod/indirect 2/rm32/edx . . . 2/r32/edx . . # copy *edx to edx
# s2/esi = benchmark->data
# var s2/esi : (address byte) = benchmark->data
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 0xc/disp8 . # copy *(ebp+12) to esi
81 0/subop/add 3/mod/direct 6/rm32/esi . . . . . 4/imm32 # add to esi
# i/ecx = c1/eax = c2/ebx = 0
# var i/ecx : int = 0
b9/copy-to-ecx 0/imm32/exit
# var c1/eax : byte = 0
b8/copy-to-eax 0/imm32
# var c2/ebx : byte = 0
bb/copy-to-ebx 0/imm32
$kernel-string-equal?:loop:
# if (i >= n) break
@ -258,10 +262,10 @@ test-compare-kernel-string-with-longer-array:
== data
Null-kernel-string:
Null-kernel-string: # (address kernel-string)
00/null
_test-Abc-kernel-string:
_test-Abc-kernel-string: # (address kernel-string)
41/A 62/b 63/c 00/null
# . . vim:nowrap:textwidth=0

8
053new-segment.subx
View File

@ -17,7 +17,7 @@
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
Entry: # manual test
# var ad/ecx : (address allocation-descriptor) = {0, 0}
# var ad/ecx : (ref allocation-descriptor)
68/push 0/imm32/limit
68/push 0/imm32/curr
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -29,7 +29,7 @@ Entry: # manual test
e8/call new-segment/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# eax = ad->curr
# var eax : (address _) = ad->curr
8b/copy 0/mod/indirect 1/rm32/ecx . . . 0/r32/eax . . # copy *ecx to eax
# write to *eax to check that we have access to the newly-allocated segment
c7 0/subop/copy 0/mod/direct 0/rm32/eax . . . . . 0x34/imm32 # copy to *eax
@ -38,7 +38,7 @@ Entry: # manual test
b8/copy-to-eax 1/imm32/exit
cd/syscall 0x80/imm8
new-segment: # len : int, ad : (address allocation-descriptor)
new-segment: # len : int, ad : (ref allocation-descriptor)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -72,7 +72,7 @@ $new-segment:end:
== data
# various constants used here were found in the Linux sources (search for file mman-common.h)
_mmap-new-segment: # type mmap_arg_struct
_mmap-new-segment: # (ref mmap_arg_struct)
# addr
0/imm32
$_mmap-new-segment:len:

17
054string-equal.subx
View File

@ -13,12 +13,12 @@ Entry: # run all tests
b8/copy-to-eax 1/imm32/exit
cd/syscall 0x80/imm8
string-equal?: # s : (address string), benchmark : (address string) -> eax : boolean
string-equal?: # s : (address array byte), benchmark : (address array byte) -> eax : boolean
# pseudocode:
# if (s->length != benchmark->length) return false
# currs = s->data
# currb = benchmark->data
# maxs = s->data + s->length
# maxs = &s->data[s->length]
# while currs < maxs
# c1 = *currs
# c2 = *currb
@ -51,14 +51,15 @@ $string-equal?:lengths:
# if (ecx != benchmark->length) return false
39/compare 0/mod/indirect 7/rm32/edi . . . 1/r32/ecx . . # compare *edi and ecx
75/jump-if-not-equal $string-equal?:false/disp8
# currs/esi = s->data
# var currs/esi : (address byte) = s->data
81 0/subop/add 3/mod/direct 6/rm32/esi . . . . . 4/imm32 # add to esi
# maxs/ecx = s->data + s->length
# var maxs/ecx : (address byte) = &s->data[s->length]
01/add 3/mod/direct 1/rm32/ecx . . . 6/r32/esi . . # add esi to ecx
# currb/edi = benchmark->data
# var currb/edi : (address byte) = benchmark->data
81 0/subop/add 3/mod/direct 7/rm32/edi . . . . . 4/imm32 # add to edi
# c1/eax = c2/edx = 0
# var c1/eax : byte = 0
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
# var c2/edx : byte = 0
31/xor 3/mod/direct 2/rm32/edx . . . 2/r32/edx . . # clear edx
$string-equal?:loop:
# if (currs >= maxs) return true
@ -175,13 +176,13 @@ test-compare-inequal-strings-equal-lengths:
c3/return
# helper for later tests
check-strings-equal: # s : (address string), expected : (address string), msg : (address string)
check-strings-equal: # s : (address array byte), expected : (address array byte), msg : (address array byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
50/push-eax
# eax = string-equal?(s, expected)
# var eax : boolean = string-equal?(s, expected)
# . . push args
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0xc/disp8 . # push *(ebp+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8)

18
055stream.subx
View File

@ -3,7 +3,7 @@
# A stream looks like this:
# write : int # index at which writes go
# read : int # index that we've read until
# data : (array byte) # prefixed by length as usual
# data : (ref array byte) # prefixed by length as usual
#
# some primitives for operating on streams:
# - clear-stream (clears everything but the data length)
@ -14,7 +14,7 @@
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
clear-stream: # f : (address stream)
clear-stream: # f : (address stream byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -23,23 +23,23 @@ clear-stream: # f : (address stream)
51/push-ecx
# eax = f
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax
# ecx = f->length
# var count/ecx : int = f->length
8b/copy 1/mod/*+disp8 0/rm32/eax . . . 1/r32/ecx 8/disp8 . # copy *(eax+8) to ecx
# ecx = &f->data[f->length]
# var max/ecx : (address byte) = &f->data[f->length]
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 0xc/disp8 . # copy eax+ecx+12 to ecx
# f->write = 0
c7 0/subop/copy 0/mod/direct 0/rm32/eax . . . . . 0/imm32 # copy to *eax
# f->read = 0
c7 0/subop/copy 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 0/imm32 # copy to *(eax+4)
# eax = f->data
# var curr/eax : (address byte) = f->data
81 0/subop/add 3/mod/direct 0/rm32/eax . . . . . 0xc/imm32 # add to eax
$clear-stream:loop:
# if (eax >= ecx) break
# if (curr >= max) break
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
73/jump-if-greater-or-equal-unsigned $clear-stream:end/disp8
# *eax = 0
# *curr = 0
c6 0/subop/copy-byte 0/mod/direct 0/rm32/eax . . . . . 0/imm8 # copy byte to *eax
# ++eax
# ++curr
40/increment-eax
eb/jump $clear-stream:loop/disp8
$clear-stream:end:
@ -51,7 +51,7 @@ $clear-stream:end:
5d/pop-to-ebp
c3/return
rewind-stream: # f : (address stream)
rewind-stream: # f : (address stream byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp

96
056trace.subx
View File

@ -14,9 +14,9 @@
== data
# We'll save the address of the trace segment here.
Trace-stream:
Trace-stream: # (handle stream byte)
0/imm32
# we don't have safe handles (fat pointers) yet
Trace-segment:
0/imm32/curr
@ -24,7 +24,7 @@ Trace-segment:
# Fake trace-stream for tests.
# Also illustrates the layout of the real trace-stream (segment).
_test-trace-stream:
_test-trace-stream: # (ref stream byte)
# current write index
0/imm32
# current read index
@ -60,7 +60,7 @@ initialize-trace-stream: # n : int
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# copy Trace-segment->curr to *Trace-stream
8b/copy 0/mod/indirect 5/rm32/.disp32 . . 0/r32/eax Trace-segment/disp32 # copy *Trace-segment to eax
# watch point to catch Trace-stream leaks
#? # watch point to catch Trace-stream leaks
#? $watch-1:
89/copy 0/mod/indirect 5/rm32/.disp32 . . 0/r32/eax Trace-stream/disp32 # copy eax to *Trace-stream
# Trace-stream->length = n - 12
@ -79,7 +79,7 @@ $initialize-trace-stream:end:
# Append a string to the given trace stream.
# Silently give up if it's already full. Or truncate the string if there isn't enough room.
trace: # line : (address string)
trace: # line : (address array byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -90,13 +90,13 @@ trace: # line : (address string)
53/push-ebx
56/push-esi
57/push-edi
# edi = *Trace-stream
# var edi : (address stream byte) = *Trace-stream
8b/copy 0/mod/indirect 5/rm32/.disp32 . . 7/r32/edi Trace-stream/disp32 # copy *Trace-stream to edi
# esi = line
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# ecx = t->write
# var ecx : int = t->write
8b/copy 0/mod/indirect 7/rm32/edi . . . 1/r32/ecx . . # copy *edi to ecx
# edx = t->length
# var edx : int = t->length
8b/copy 1/mod/*+disp8 7/rm32/edi . . . 2/r32/edx 8/disp8 . # copy *(edi+8) to edx
# eax = _append-3(&t->data[t->write], &t->data[t->length], line)
# . . push line
@ -302,7 +302,7 @@ $check-trace-scans-to:end:
c3/return
# Start scanning from Trace-stream->read for 'line'. If found, update Trace-stream->read and return true.
trace-scan: # line : (address string) -> result/eax : boolean
trace-scan: # line : (address array byte) -> result/eax : boolean
# pseudocode:
# push Trace-stream->read
# while true:
@ -340,8 +340,8 @@ $trace-scan:loop:
e8/call next-line-matches?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# if (eax == 0) continue
3d/compare-eax-and 0/imm32
# if (eax == false) continue
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $trace-scan:continue/disp8
$trace-scan:true:
# skip-next-line(Trace-stream)
@ -554,7 +554,7 @@ test-trace-scan-failure-leaves-read-index-untouched:
# . end
c3/return
next-line-matches?: # t : (address stream), line : (address string) -> result/eax : boolean
next-line-matches?: # t : (address stream byte), line : (address array byte) -> result/eax : boolean
# pseudocode:
# while true:
# if (currl >= maxl) break
@ -575,58 +575,58 @@ next-line-matches?: # t : (address stream), line : (address string) -> result/e
57/push-edi
# edx = line
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
# currl/esi = line->data
# var currl/esi : (address byte) = line->data
# . esi = line/edx->data
8d/copy-address 1/mod/*+disp8 2/rm32/edx . . . 6/r32/esi 4/disp8 . # copy edx+4 to esi
# maxl/ecx = line->data + line->size
# var maxl/ecx : (address byte) = &line->data[line->size]
# . eax = line/edx->size
8b/copy 0/mod/indirect 2/rm32/edx . . 0/r32/eax . . # copy *edx to eax
# . maxl/ecx = line->data/esi + line->size/eax
# . maxl = &line->data[line->size]
8d/copy-address 0/mod/indirect 4/rm32/sib 6/base/esi 0/index/eax . 1/r32/ecx . . # copy edx+eax to ecx
# edi = t
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 7/r32/edi 8/disp8 . # copy *(ebp+8) to edi
# ebx = t->data
# var ebx : (address byte) = t->data
8d/copy-address 1/mod/*+disp8 7/rm32/edi . . . 3/r32/ebx 0xc/disp8 . # copy edi+12 to ebx
# maxt/edx = t->data + t->write
# var maxt/edx : (address byte) = &t->data[t->write]
# . eax = t->write
8b/copy 0/mod/indirect 7/rm32/edi . . 0/r32/eax . . # copy *edi to eax
# . maxt/edx = t->data/ebx + t->write/eax
# . maxt = &t->data[t->write]
8d/copy-address 0/mod/indirect 4/rm32/sib 3/base/ebx 0/index/eax . 2/r32/edx . . # copy ebx+eax to edx
# currt/edi = t->data + t->read
# var currt/edi : (address byte) = &t->data[t->read]
# . eax = t/edi->read
8b/copy 1/mod/*+disp8 7/rm32/edi . . 0/r32/eax 4/disp8 . # copy *(edi+4) to eax
# . currt/edi = t->data/ebx + t->read/eax
# . currt = &t->data[t->read]
8d/copy-address 0/mod/indirect 4/rm32/sib 3/base/ebx 0/index/eax . 7/r32/edi . . # copy ebx+eax to edi
$next-line-matches?:loop:
# if (currl/esi >= maxl/ecx) break
# if (currl >= maxl) break
39/compare 3/mod/direct 6/rm32/esi . . . 1/r32/ecx . . # compare esi and ecx
73/jump-if-greater-or-equal-unsigned $next-line-matches?:break/disp8
# if (currt/edi >= maxt/edx) return false
# if (currt >= maxt) return false
# . eax = false
b8/copy-to-eax 0/imm32/false
39/compare 3/mod/direct 7/rm32/edi . . . 2/r32/edx . . # compare edi and edx
73/jump-if-greater-or-equal-unsigned $next-line-matches?:end/disp8
# if (*currt/edi != *currl/esi) return false
# if (*currt != *currl) return false
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
31/xor 3/mod/direct 3/rm32/eax . . . 3/r32/eax . . # clear ebx
# . eax = (char) *currt/edi
# . eax : byte = *currt
8a/copy-byte 0/mod/indirect 7/rm32/edi . . 0/r32/eax . . # copy *edi to eax
# . ebx = (char) *currl/esi
# . ebx : byte = *currl
8a/copy-byte 0/mod/indirect 6/rm32/esi . . 3/r32/ebx . . # copy *esi to ebx
# . eax >= ebx
39/compare 3/mod/direct 0/rm32/eax . . . 3/r32/ebx . . # compare eax and ebx
# . eax = false
b8/copy-to-eax 0/imm32/false
75/jump-if-not-equal $next-line-matches?:end/disp8
# ++currt/edi
# ++currt
47/increment-edi
# ++currl/esi
# ++currl
46/increment-esi
eb/jump $next-line-matches?:loop/disp8
$next-line-matches?:break:
# return *currt == '\n'
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
# . eax = (char) *currt
# . eax : byte = *currt
8a/copy-byte 0/mod/indirect 7/rm32/edi . . 0/r32/eax . . # copy *edi to eax
3d/compare-eax-and 0xa/imm32/newline
# . eax = false
@ -730,11 +730,11 @@ test-next-line-matches?-match:
c3/return
# move t->read to _after_ next newline
skip-next-line: # t : (address stream)
skip-next-line: # t : (address stream byte)
# pseudocode:
# max = t->data + t->write
# max = &t->data[t->write]
# i = t->read
# curr = t->data + t->read
# curr = &t->data[t->read]
# while true
# if (curr >= max) break
# ++i
@ -752,37 +752,37 @@ skip-next-line: # t : (address stream)
53/push-ebx
# ecx = t
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
# edx = t/ecx->data
# edx = t->data
8d/copy-address 1/mod/*+disp8 1/rm32/ecx . . . 2/r32/edx 0xc/disp8 . # copy ecx+12 to edx
# eax = t/ecx->write
# eax = t->write
8b/copy 0/mod/indirect 1/rm32/ecx . . . 0/r32/eax . . # copy *ecx to eax
# max/ebx = t->data/edx + t->write/eax
# var max/ebx : (address byte) = &t->data[t->write]
8d/copy-address 0/mod/indirect 4/rm32/sib 2/base/edx 0/index/eax . 3/r32/ebx . . # copy edx+eax to ebx
# eax = t/ecx->read
# eax = t->read
8b/copy 1/mod/*+disp8 1/rm32/ecx . . . 0/r32/eax 4/disp8 . # copy *(ecx+4) to edx
# curr/ecx = t->data/edx + t->read/eax
# var curr/ecx : (address byte) = &t->data[t->read]
8d/copy-address 0/mod/indirect 4/rm32/sib 2/base/edx 0/index/eax . 1/r32/ecx . . # copy edx+eax to ecx
# i/edx = eax
# var i/edx : int = t->read
89/copy 3/mod/direct 2/rm32/edx . . . 0/r32/eax . . # copy eax to edx
$skip-next-line:loop:
# if (curr/ecx >= max/ebx) break
# if (curr >= max) break
39/compare 3/mod/direct 1/rm32/ecx . . . 3/r32/ebx . . # compare ecx and ebx
73/jump-if-greater-or-equal-unsigned $skip-next-line:end/disp8
# ++i/edx
# ++i
42/increment-edx
# if (*curr/ecx == '\n') break
# if (*curr == '\n') break
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 0/r32/eax . . # copy *ecx to eax
3d/compare-eax-and 0a/imm32/newline
74/jump-if-equal $skip-next-line:end/disp8
# ++curr/ecx
# ++curr
41/increment-ecx
# loop
eb/jump $skip-next-line:loop/disp8
$skip-next-line:end:
# ecx = t
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
# t/ecx->read = i/edx
# t->read = i
89/copy 1/mod/*+disp8 1/rm32/ecx . . . 2/r32/edx 4/disp8 . # copy edx to *(ecx+4)
# . restore registers
5b/pop-to-ebx
@ -858,7 +858,7 @@ $clear-trace-stream:end:
# - helpers
# 3-argument variant of _append
_append-3: # out : address, outend : address, s : (array byte) -> num_bytes_appended/eax
_append-3: # out : (address byte), outend : (address byte), s : (address array byte) -> num_bytes_appended/eax
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -890,7 +890,7 @@ $_append-3:end:
c3/return
# 4-argument variant of _append
_append-4: # out : address, outend : address, in : address, inend : address -> num_bytes_appended/eax
_append-4: # out : (address byte), outend : (address byte), in : (address byte), inend : (address byte) -> num_bytes_appended/eax : int
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -900,7 +900,7 @@ _append-4: # out : address, outend : address, in : address, inend : address ->
53/push-ebx
56/push-esi
57/push-edi
# eax/num_bytes_appended = 0
# num_bytes_appended = 0
b8/copy-to-eax 0/imm32
# edi = out
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 8/disp8 . # copy *(ebp+8) to edi
@ -956,7 +956,7 @@ $_append-4:abort:
== data
_test-stream-line-ABABA:
_test-stream-line-ABABA: # (ref stream byte)
# write
8/imm32
# read
@ -966,7 +966,7 @@ _test-stream-line-ABABA:
# data
41 42 41 42 41 0a 00 00 # 8 bytes
_test-stream-empty:
_test-stream-empty: # (ref stream byte)
# write
0/imm32
# read
@ -976,7 +976,7 @@ _test-stream-empty:
# data
00 00 00 00 00 00 00 00 # 8 bytes
_test-stream-filled:
_test-stream-filled: # (ref stream byte)
# write
8/imm32
# read

4
057write.subx
View File

@ -21,7 +21,7 @@
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
# TODO: come up with a way to signal when a write to disk fails
write: # f : fd or (address stream), s : (address array byte)
write: # f : fd or (address stream byte), s : (address array byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -145,7 +145,7 @@ test-write-appends:
== data
_test-stream:
_test-stream: # (ref stream byte)
# current write index
0/imm32
# current read index

32
058stream-equal.subx
View File

@ -6,7 +6,7 @@
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
# compare all the data in a stream (ignoring the read pointer)
stream-data-equal?: # f : (address stream), s : (address string) -> eax : boolean
stream-data-equal?: # f : (address stream byte), s : (address array byte) -> eax : boolean
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -19,20 +19,21 @@ stream-data-equal?: # f : (address stream), s : (address string) -> eax : boole
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# eax = f->write
8b/copy 0/mod/indirect 6/rm32/esi . . . 0/r32/eax . . # copy *esi to eax
# maxf/edx = f->data + f->write
# var maxf/edx : (address byte) = &f->data[f->write]
8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/esi 0/index/eax . 2/r32/edx 0xc/disp8 . # copy esi+eax+12 to edx
# currf/esi = f->data
# var currf/esi : (address byte) = f->data
81 0/subop/add 3/mod/direct 6/rm32/esi . . . . . 0xc/imm32 # add to esi
# edi = s
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 0xc/disp8 . # copy *(ebp+12) to edi
# if (f->write != s->length) return false
$stream-data-equal?:compare-lengths:
# if (f->write != s->length) return false
39/compare 0/mod/indirect 7/rm32/edi . . . 0/r32/eax . . # compare *edi and eax
75/jump-if-not-equal $stream-data-equal?:false/disp8
# currs/edi = s->data
# var currs/edi : (address byte) = s->data
81 0/subop/add 3/mod/direct 7/rm32/edi . . . . . 4/imm32 # add to edi
# eax = ecx = 0
# var eax : byte = 0
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
# var ecx : byte = 0
31/xor 3/mod/direct 1/rm32/ecx . . . 1/r32/ecx . . # clear ecx
$stream-data-equal?:loop:
# if (currf >= maxf) return true
@ -190,7 +191,7 @@ test-stream-data-equal-length-check:
c3/return
# helper for later tests
check-stream-equal: # f : (address stream), s : (address string), msg : (address string)
check-stream-equal: # f : (address stream byte), s : (address array byte), msg : (address array byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -226,7 +227,7 @@ $check-stream-equal:end:
# on success, set f->read to after the next newline
# on failure, leave f->read unmodified
# this function is usually used only in tests, so we repeatedly write f->read
next-stream-line-equal?: # f : (address stream), s : (address string) -> eax : boolean
next-stream-line-equal?: # f : (address stream byte), s : (address array byte) -> eax : boolean
# pseudocode:
# currf = f->read # bound: f->write
# currs = 0 # bound : s->length
@ -273,30 +274,31 @@ next-stream-line-equal?: # f : (address stream), s : (address string) -> eax :
57/push-edi
# esi = f
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# currf/ecx = f->read
# var currf/ecx : int = f->read
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
# edi = s
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 0xc/disp8 . # copy *(ebp+12) to edi
# currs/edx = 0
# var currs/edx : int = 0
31/xor 3/mod/direct 2/rm32/edx . . . 2/r32/edx . . # clear edx
# eax = ebx = 0
# var c1/eax : byte = 0
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
# var c2/ebx : byte = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
$next-stream-line-equal?:loop:
# if (currf >= f->write) break
3b/compare 0/mod/indirect 6/rm32/esi . . . 1/r32/ecx . . # compare ecx with *esi
7d/jump-if-greater-or-equal $next-stream-line-equal?:break/disp8
# AL = *(f->data + f->read)
# c1 = f->data[f->read]
8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/AL 0xc/disp8 . # copy byte at *(esi+ecx+12) to AL
# if (eax == '\n') break
# if (c1 == '\n') break
3d/compare-eax-and 0xa/imm32/newline
74/jump-if-equal $next-stream-line-equal?:break/disp8
# if (currs >= s->length) return false
3b/compare 0/mod/indirect 7/rm32/edi . . . 2/r32/edx . . # compare edx with *edi
7d/jump-if-greater-or-equal $next-stream-line-equal?:false/disp8
# BL = *(s->data + currs)
# c2 = s->data[currs]
8a/copy-byte 1/mod/*+disp8 4/rm32/sib 7/base/edi 2/index/edx . 3/r32/BL 4/disp8 . # copy byte at *(edi+edx+4) to BL
# if (eax != ebx) return false
# if (c1 != c2) return false
39/compare 3/mod/direct 0/rm32/eax . . . 3/r32/ebx . . # compare eax and ebx
75/jump-if-not-equal $next-stream-line-equal?:false/disp8
# ++currf

2
059stop.subx
View File

@ -123,7 +123,7 @@ test-stop-skips-returns-on-exit:
# Make room for an exit descriptor on the stack. That's almost always the
# right place for it, available only as long as it's legal to use. Once this
# containing function returns we'll need a new exit descriptor.
# var ed/eax : (address exit-descriptor)
# var ed/eax : (ref exit-descriptor)
68/push 0/imm32
68/push 0/imm32
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax

7
060read.subx
View File

@ -45,7 +45,7 @@
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
read: # f : fd or (address stream), s : (address stream) -> num-bytes-read/eax
read: # f : fd or (address stream byte), s : (address stream byte) -> num-bytes-read/eax : int
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -191,12 +191,11 @@ $_buffer-4:end:
5d/pop-to-ebp
c3/return
# idea: a clear-if-empty method on streams that clears only if f->read == f->write
# Unclear how I'd use it, though. Callers seem to need the check anyway.
# Maybe a better helper would be 'empty-stream?'
_read: # fd : int, s : (address stream) -> num-bytes-read/eax
_read: # fd : int, s : (address stream byte) -> num-bytes-read/eax : int
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -427,7 +426,7 @@ test-read-returns-0-on-end-of-file:
== data
_test-tmp-stream:
_test-tmp-stream: # (ref stream byte)
# current write index
0/imm32
# current read index

17
061read-byte.subx
View File

@ -11,8 +11,8 @@
# The buffered file for standard input. Also illustrates the layout for
# buffered-file: a pointer to the backing store, followed by a 'buffer' stream
Stdin:
# file descriptor or (address stream)
Stdin: # (ref buffered-file)
# file descriptor or (address stream byte)
0/imm32 # standard input
$Stdin->buffer:
# inlined fields for a stream
@ -73,8 +73,7 @@ read-byte-buffered: # f : (address buffered-file) -> byte-or-Eof/eax
b8/copy-to-eax 0xffffffff/imm32/Eof
eb/jump $read-byte-buffered:end/disp8
$read-byte-buffered:from-stream:
# read byte from stream
# AL = f->data[f->read]
# byte-or-Eof = f->data[f->read]
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/AL 0x10/disp8 . # copy byte at *(esi+ecx+16) to AL
# ++f->read
@ -272,8 +271,8 @@ test-read-byte-buffered-refills-buffer:
== data
# a test buffered file for _test-stream
_test-buffered-file:
# file descriptor or (address stream)
_test-buffered-file: # (ref buffered-file)
# file descriptor or (address stream byte)
_test-stream/imm32
$_test-buffered-file->buffer:
# current write index
@ -285,7 +284,7 @@ $_test-buffered-file->buffer:
# data
00 00 00 00 00 00 # 6 bytes
_test-input-stream:
_test-input-stream: # (ref stream byte)
# current write index
0/imm32
# current read index
@ -311,8 +310,8 @@ _test-input-stream:
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
# a test buffered file for _test-input-stream
_test-input-buffered-file:
# file descriptor or (address stream)
_test-input-buffered-file: # (ref buffered-file)
# file descriptor or (address stream byte)
_test-input-stream/imm32
$_test-input-buffered-file->buffer:
# current write index

6
062write-stream.subx
View File

@ -15,7 +15,7 @@
#? b8/copy-to-eax 1/imm32/exit
#? cd/syscall 0x80/imm8
write-stream: # f : fd or (address stream), s : (address stream)
write-stream: # f : fd or (address stream byte), s : (address stream byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -75,7 +75,7 @@ $write-stream:end:
5d/pop-to-ebp
c3/return
_write-stream: # fd : int, s : (address stream)
_write-stream: # fd : int, s : (address stream byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -242,7 +242,7 @@ test-write-stream-appends:
== data
_test-stream2:
_test-stream2: # (ref stream byte)
# current write index
4/imm32
# current read index

2
063error.subx
View File

@ -6,7 +6,7 @@
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
# write(out, "Error: "+msg+"\n") then stop(ed, 1)
error: # ed : (address exit-descriptor), out : fd or (address stream), msg : (address array byte)
error: # ed : (address exit-descriptor), out : fd or (address stream byte), msg : (address array byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp

18
064write-byte.subx
View File

@ -7,8 +7,8 @@
== data
# The buffered file for standard output.
Stdout:
# file descriptor or (address stream)
Stdout: # (ref buffered-file)
# file descriptor or (address stream byte)
1/imm32 # standard output
$Stdout->buffer:
# inlined fields for a stream
@ -205,7 +205,7 @@ test-write-byte-buffered-multiple-flushes:
# - variant without buffering
# Write lower byte of 'n' to 'f'.
append-byte: # f : (address stream), n : int
append-byte: # f : (address stream byte), n : int
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -283,7 +283,7 @@ test-append-byte-single:
== data
_test-output-stream:
_test-output-stream: # (ref stream byte)
# current write index
0/imm32
# current read index
@ -325,8 +325,8 @@ _test-output-stream:
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
# a test buffered file for _test-output-stream
_test-output-buffered-file:
# file descriptor or (address stream)
_test-output-buffered-file: # (ref buffered-file)
# file descriptor or (address stream byte)
_test-output-stream/imm32
$_test-output-buffered-file->buffer:
# current write index
@ -338,7 +338,7 @@ $_test-output-buffered-file->buffer:
# data
00 00 00 00 00 00 # 6 bytes
_test-error-stream:
_test-error-stream: # (ref stream byte)
# current write index
0/imm32
# current read index
@ -356,8 +356,8 @@ _test-error-stream:
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
# a test buffered file for _test-error-stream
_test-error-buffered-file:
# file descriptor or (address stream)
_test-error-buffered-file: # (ref buffered-file)
# file descriptor or (address stream byte)
_test-error-stream/imm32
$_test-error-buffered-file->buffer:
# current write index

8
065write-buffered.subx
View File

@ -38,9 +38,9 @@ write-buffered: # f : (address buffered-file), msg : (address array byte)
57/push-edi
# eax = msg
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 0/r32/eax 0xc/disp8 . # copy *(ebp+12) to eax
# in/esi = msg->data
# var in/esi : (address byte) = msg->data
8d/copy-address 1/mod/*+disp8 0/rm32/eax . . . 6/r32/esi 4/disp8 . # copy eax+4 to esi
# inend/ecx = &msg->data[msg->length]
# var inend/ecx : (address byte) = &msg->data[msg->length]
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 0/mod/indirect 4/rm32/sib 6/base/esi 1/index/ecx . 1/r32/ecx . . # copy esi+ecx to ecx
# edi = f
@ -206,8 +206,8 @@ test-write-buffered-with-intermediate-flush:
== data
# The buffered file for standard error.
Stderr:
# file descriptor or (address stream)
Stderr: # (ref buffered-file)
# file descriptor or (address stream byte)
2/imm32 # standard error
$Stderr->buffer:
# inlined fields for a stream

7
066print-int.subx
View File

@ -5,7 +5,8 @@
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
to-hex-char: # in/eax : nibble -> out/eax : byte
# convert the lowest nibble of eax to ascii and return it in the lowest byte of eax
to-hex-char: # in/eax : int -> out/eax : int
# no error checking; accepts argument in eax
# if (eax <= 9) return eax + '0'
3d/compare-eax-with 0x9/imm32/9
@ -17,7 +18,7 @@ $to-hex-char:else:
05/add-to-eax 0x57/imm32/a-10
c3/return
append-byte-hex: # f : (address stream), n : int
append-byte-hex: # f : (address stream byte), n : int
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -174,7 +175,7 @@ test-print-byte-buffered:
# . end
c3/return
print-int32: # f : (address stream), n : int
print-int32: # f : (address stream byte), n : int
# pseudocode:
# write(f, "0x")
# ecx = 28

52
067parse-hex.subx
View File

@ -18,7 +18,7 @@ is-hex-int?: # in : (address slice) -> eax : boolean
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
# edx = s->end
8b/copy 1/mod/*+disp8 1/rm32/ecx . . . 2/r32/edx 4/disp8 . # copy *(ecx+4) to edx
# curr/ecx = s->start
# var curr/ecx : (address byte) = s->start
8b/copy 0/mod/indirect 1/rm32/ecx . . . 1/r32/ecx . . # copy *ecx to ecx
# if s is empty return false
b8/copy-to-eax 0/imm32/false
@ -56,7 +56,7 @@ $is-hex-int?:loop:
# if (curr >= in->end) return true
39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx
73/jump-if-greater-or-equal-unsigned $is-hex-int?:true/disp8
# eax = is-hex-digit?(*curr)
# var eax : boolean = is-hex-digit?(*curr)
# . . push args
8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 0/r32/AL . . # copy byte at *ecx to AL
50/push-eax
@ -93,7 +93,7 @@ test-is-hex-int:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -127,7 +127,7 @@ test-is-hex-int-handles-letters:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -161,7 +161,7 @@ test-is-hex-int-with-trailing-char:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -195,7 +195,7 @@ test-is-hex-int-with-leading-char:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -224,7 +224,7 @@ test-is-hex-int-empty:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var slice/ecx = ""
# var slice/ecx : (ref slice) = ""
68/push 0/imm32
68/push 0/imm32
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -258,7 +258,7 @@ test-is-hex-int-handles-0x-prefix:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -292,7 +292,7 @@ test-is-hex-int-handles-negative:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -326,7 +326,7 @@ test-is-hex-int-handles-negative-0x-prefix:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -351,7 +351,7 @@ test-is-hex-int-handles-negative-0x-prefix:
5d/pop-to-ebp
c3/return
parse-hex-int: # in : (address slice) -> result/eax
parse-hex-int: # in : (address slice) -> result/eax : int
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -360,18 +360,18 @@ parse-hex-int: # in : (address slice) -> result/eax
52/push-edx
53/push-ebx
56/push-esi
# result/ebx = 0
# var result/ebx : int = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
# ecx = s
# ecx = in
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
# edx = s->end
# edx = in->end
8b/copy 1/mod/*+disp8 1/rm32/ecx . . . 2/r32/edx 4/disp8 . # copy *(ecx+4) to edx
# curr/ecx = s->start
# var curr/ecx : (address byte) = in->start
8b/copy 0/mod/indirect 1/rm32/ecx . . . 1/r32/ecx . . # copy *ecx to ecx
# negate?/esi = false
# var negate?/esi : boolean = false
31/xor 3/mod/direct 6/rm32/esi . . . 6/r32/esi . . # clear esi
$parse-hex-int:negative:
# . if (*curr == '-') negate = true
# if (*curr == '-') ++curr, negate = true
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 0/r32/AL . . # copy byte at *ecx to AL
3d/compare-eax-and 0x2d/imm32/-
@ -403,7 +403,7 @@ $parse-hex-int:loop:
# if (curr >= in->end) break
39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx
73/jump-if-greater-or-equal-unsigned $parse-hex-int:negate/disp8
# eax = from-hex-char(*curr)
# var eax : int = from-hex-char(*curr)
# . . copy arg to eax
8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 0/r32/AL . . # copy byte at *ecx to AL
# . . call
@ -416,10 +416,12 @@ $parse-hex-int:loop:
# loop
eb/jump $parse-hex-int:loop/disp8
$parse-hex-int:negate:
81 7/subop/compare 3/mod/direct 6/rm32/esi . . . . . 0/imm32 # compare esi
# if (negate?) result = -result
81 7/subop/compare 3/mod/direct 6/rm32/esi . . . . . 0/imm32/false # compare esi
74/jump-if-equal $parse-hex-int:end/disp8
f7 3/subop/negate 3/mod/direct 3/rm32/ebx . . . . . . # negate ebx
$parse-hex-int:end:
# return result
89/copy 3/mod/direct 0/rm32/eax . . . 3/r32/ebx . . # copy ebx to eax
# . restore registers
5e/pop-to-esi
@ -440,7 +442,7 @@ test-parse-hex-int-single-digit:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -474,7 +476,7 @@ test-parse-hex-int-multi-digit:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -508,7 +510,7 @@ test-parse-hex-int-0x-prefix:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -542,7 +544,7 @@ test-parse-hex-int-zero:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -576,7 +578,7 @@ test-parse-hex-int-0-prefix:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -610,7 +612,7 @@ test-parse-hex-int-negative:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx

4
068error-byte.subx
View File

@ -6,7 +6,7 @@
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
#? Entry: # manual test
#? # . var ed/eax : exit-descriptor
#? # . var ed/eax : (ref exit-descriptor)
#? 81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
#? 89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
#? # . configure ed to really exit()
@ -68,7 +68,7 @@ error-byte: # ed : (address exit-descriptor), out : (address buffered-file), ms
e8/call write-buffered/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . flush(out)
# flush(out)
# . . push args
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0xc/disp8 . # push *(ebp+12)
# . . call

16
069allocate.subx
View File

@ -19,14 +19,14 @@
== data
# A default allocation descriptor for programs to use.
Heap:
Heap: # (ref allocation-descriptor)
# curr
0/imm32
# limit
0/imm32
# a reasonable default
Heap-size:
Heap-size: # (ref int)
0x200000/imm32/2MB
== code
@ -56,7 +56,7 @@ $array-equal-main:end:
# Claim the next 'n' bytes of memory starting at ad->curr and update ad->curr.
# Abort if there isn't enough memory in 'ad'.
allocate: # ad : (address allocation-descriptor), n : int -> address-or-null/eax
allocate: # ad : (address allocation-descriptor), n : int -> address-or-null/eax : (address _)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -104,11 +104,11 @@ test-allocate-success:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var ad/ecx : (address allocation-descriptor) = {11, 15}
# var ad/ecx : (ref allocation-descriptor) = {11, 15}
68/push 0xf/imm32/limit
68/push 0xb/imm32/curr
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# eax = allocate(ad, 3)
# var eax : (handle byte) = allocate(ad, 3)
# . . push args
68/push 3/imm32
51/push-ecx
@ -143,11 +143,11 @@ _pending-test-allocate-failure:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var ad/ecx : (address allocation-descriptor) = {11, 15}
# var ad/ecx : (ref allocation-descriptor) = {11, 15}
68/push 0xf/imm32/limit
68/push 0xb/imm32/curr
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# eax = allocate(ad, 6)
# var eax : (handle byte) = allocate(ad, 6)
# . . push args
68/push 6/imm32
51/push-ecx
@ -180,7 +180,7 @@ _pending-test-allocate-failure:
c3/return
# helper: create a nested allocation descriptor (useful for tests)
allocate-region: # ad : (address allocation-descriptor), n : int -> new-ad : (address allocation-descriptor)
allocate-region: # ad : (address allocation-descriptor), n : int -> new-ad : (handle allocation-descriptor)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp

10
070new-stream.subx
View File

@ -5,13 +5,13 @@
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
new-stream: # ad : (address allocation-descriptor), length : int, elemsize : int -> address/eax
new-stream: # ad : (address allocation-descriptor), length : int, elemsize : int -> address/eax : (handle stream _)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
52/push-edx
# n = elemsize * length + 12 (for read, write and length)
# var n/eax : int = elemsize * length + 12 (for read, write and length)
# . eax = elemsize
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 0x10/disp8 . # copy *(ebp+16) to eax
# . eax *= length
@ -24,7 +24,7 @@ new-stream: # ad : (address allocation-descriptor), length : int, elemsize : in
89/copy 3/mod/direct 2/rm32/edx . . . 0/r32/eax . . # copy eax to edx
# . eax += 12
05/add-to-eax 0xc/imm32
# allocate(ad, n)
# var eax : (handle stream _) = allocate(ad, n)
# . . push args
50/push-eax
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8)
@ -68,7 +68,7 @@ test-new-stream:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var heap/ecx : (address allocation-descriptor) = {0, 0}
# var heap/ecx : (ref allocation-descriptor)
68/push 0/imm32/limit
68/push 0/imm32/curr
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -82,7 +82,7 @@ test-new-stream:
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# var start/edx = ad->curr
8b/copy 0/mod/indirect 1/rm32/ecx . . . 2/r32/edx . . # copy *ecx to edx
# eax = new-stream(heap, 3, 2)
# var eax : (handle stream byte) = new-stream(heap, 3, 2)
# . . push args
68/push 2/imm32
68/push 3/imm32

2
071read-line.subx
View File

@ -216,7 +216,7 @@ test-read-line-buffered-reads-final-line-until-Eof:
# read bytes from 'f' until (and including) a newline and store them into 's'
# 's' fails to grow if and only if no data found
# just abort if 's' is too small
read-line: # f : (address stream), s : (address stream byte)
read-line: # f : (address stream byte), s : (address stream byte)
# pseudocode:
# while true
# if (s->write >= s->length) abort

106
072slice.subx
View File

@ -34,7 +34,7 @@ test-slice-empty-true:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var slice/ecx = {34, 34}
# var slice/ecx : (ref slice) = {34, 34}
68/push 34/imm32/end
68/push 34/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -63,7 +63,7 @@ test-slice-empty-false:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var slice/ecx = {34, 23}
# var slice/ecx : (ref slice) = {34, 23}
68/push 23/imm32/end
68/push 34/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -88,7 +88,7 @@ test-slice-empty-false:
5d/pop-to-ebp
c3/return
slice-equal?: # s : (address slice), p : (address string) -> eax : boolean
slice-equal?: # s : (address slice), p : (address array byte) -> eax : boolean
# pseudocode:
# if (p == 0) return (s == 0)
# currs = s->start
@ -118,11 +118,11 @@ slice-equal?: # s : (address slice), p : (address string) -> eax : boolean
56/push-esi
# esi = s
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# currs/edx = s->start
# var currs/edx : (address byte) = s->start
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
# maxs/esi = s->end
# var maxs/esi : (address byte) = s->end
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 6/r32/esi 4/disp8 . # copy *(esi+4) to esi
# eax = maxs - currs
# var slen/eax : int = maxs - currs
89/copy 3/mod/direct 0/rm32/eax . . . 6/r32/esi . . # copy esi to eax
29/subtract 3/mod/direct 0/rm32/eax . . . 2/r32/edx . . # subtract edx from eax
# ebx = p
@ -136,23 +136,24 @@ $slice-equal?:null-string:
74/jump-if-equal $slice-equal?:true/disp8
eb/jump $slice-equal?:false/disp8
$slice-equal?:nonnull-string:
# if (eax != p->length) return false
# if (slen != p->length) return false
39/compare 0/mod/indirect 3/rm32/ebx . . . 0/r32/eax . . # compare *ebx and eax
75/jump-if-not-equal $slice-equal?:false/disp8
# currp/ebx = p->data
# var currp/ebx : (address byte) = p->data
81 0/subop/add 3/mod/direct 3/rm32/ebx . . . . . 4/imm32 # add to ebx
# eax = ecx = 0
# var c1/eax : byte = 0
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
# var c2/ecx : byte = 0
31/xor 3/mod/direct 1/rm32/ecx . . . 1/r32/ecx . . # clear ecx
$slice-equal?:loop:
# if (currs >= maxs) return true
39/compare 3/mod/direct 2/rm32/edx . . . 6/r32/esi . . # compare edx with esi
73/jump-if-greater-or-equal-unsigned $slice-equal?:true/disp8
# AL = *currp
# c1 = *currp
8a/copy-byte 0/mod/indirect 3/rm32/ebx . . . 0/r32/AL . . # copy byte at *ebx to AL
# CL = *currs
# c2 = *currs
8a/copy-byte 0/mod/indirect 2/rm32/edx . . . 1/r32/CL . . # copy byte at *edx to CL
# if (eax != ecx) return false
# if (c1 != c2) return false
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax and ecx
75/jump-if-not-equal $slice-equal?:false/disp8
# ++currp
@ -186,7 +187,7 @@ test-slice-equal:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -222,7 +223,7 @@ test-slice-equal-false:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -258,7 +259,7 @@ test-slice-equal-too-long:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -294,7 +295,7 @@ test-slice-equal-too-short:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -325,7 +326,7 @@ test-slice-equal-empty:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var slice/ecx
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -361,7 +362,7 @@ test-slice-equal-with-empty:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -392,7 +393,7 @@ test-slice-equal-empty-with-empty:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var slice/ecx
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -428,7 +429,7 @@ test-slice-equal-with-null:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -454,7 +455,7 @@ test-slice-equal-with-null:
5d/pop-to-ebp
c3/return
slice-starts-with?: # s : (address slice), head : (address string) -> eax : boolean
slice-starts-with?: # s : (address slice), head : (address array byte) -> eax : boolean
# pseudocode
# lenh = head->length
# if (lenh > s->end - s->start) return false
@ -487,34 +488,35 @@ slice-starts-with?: # s : (address slice), head : (address string) -> eax : boo
57/push-edi
# esi = s
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# ecx = s->end - s->start
# var lens/ecx : int = s->end - s->start
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
2b/subtract 0/mod/indirect 6/rm32/esi . . . 1/r32/ecx . . # subtract *esi from ecx
# edi = head
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 0xc/disp8 . # copy *(ebp+12) to edi
# lenh/edx = head->length
# var lenh/edx : int = head->length
8b/copy 0/mod/indirect 7/rm32/edi . . . 2/r32/edx . . # copy *edi to edx
# if (lenh > s->end - s->start) return false
# if (lenh > lens) return false
39/compare 3/mod/direct 2/rm32/edx . . . 1/r32/ecx . . # compare edx with ecx
7f/jump-if-greater $slice-starts-with?:false/disp8
# currs/esi = s->start
# var currs/esi : (address byte) = s->start
8b/subtract 0/mod/indirect 6/rm32/esi . . . 6/r32/esi . . # copy *esi to esi
# currh/edi = head->data
# var currh/edi : (address byte) = head->data
81 0/subop/add 3/mod/direct 7/rm32/edi . . . . . 4/imm32 # add to edi
# i/ecx = 0
# var i/ecx : int = 0
31/xor 3/mod/direct 1/rm32/ecx . . . 1/r32/ecx . . # clear ecx
# eax = ebx = 0
# var c1/eax : byte = 0
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
# var c2/ebx : byte = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
$slice-starts-with?:loop:
# if (i >= lenh) return true
39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx
7d/jump-if-greater-or-equal $slice-starts-with?:true/disp8
# AL = *currs
# c1 = *currs
8a/copy-byte 0/mod/indirect 6/rm32/esi . . . 0/r32/AL . . # copy byte at *esi to AL
# BL = *currh
# c2 = *currh
8a/copy-byte 0/mod/indirect 7/rm32/edi . . . 3/r32/BL . . # copy byte at *edi to BL
# if (*currs != *currh) return false
# if (c1 != c2) return false
39/compare 3/mod/direct 0/rm32/eax . . . 3/r32/ebx . . # compare eax and ebx
75/jump-if-not-equal $slice-starts-with?:false/disp8
# ++i
@ -551,7 +553,7 @@ test-slice-starts-with-single-character:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -587,7 +589,7 @@ test-slice-starts-with-empty-string:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -623,7 +625,7 @@ test-slice-starts-with-multiple-characters:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -659,7 +661,7 @@ test-slice-starts-with-entire-string:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -695,7 +697,7 @@ test-slice-starts-with-fails:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -731,7 +733,7 @@ test-slice-starts-with-fails-2:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -759,7 +761,7 @@ test-slice-starts-with-fails-2:
# write a slice to a stream
# abort if the stream doesn't have enough space
write-slice: # out : (address stream), s : (address slice)
write-slice: # out : (address stream byte), s : (address slice)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -772,9 +774,9 @@ write-slice: # out : (address stream), s : (address slice)
57/push-edi
# esi = s
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 0xc/disp8 . # copy *(ebp+12) to esi
# curr/ecx = s->start
# var curr/ecx : (address byte) = s->start
8b/copy 0/mod/indirect 6/rm32/esi . . . 1/r32/ecx . . # copy *esi to ecx
# max/esi = s->end
# var max/esi : (address byte) = s->end
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 6/r32/esi 4/disp8 . # copy *(esi+4) to esi
# edi = out
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 7/r32/edi 8/disp8 . # copy *(ebp+8) to edi
@ -848,7 +850,7 @@ test-write-slice:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -888,9 +890,9 @@ write-slice-buffered: # out : (address buffered-file), s : (address slice)
57/push-edi
# esi = s
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 0xc/disp8 . # copy *(ebp+12) to esi
# curr/ecx = s->start
# var curr/ecx : (address byte) = s->start
8b/copy 0/mod/indirect 6/rm32/esi . . . 1/r32/ecx . . # copy *esi to ecx
# max/esi = s->end
# var max/esi : (address byte) = s->end
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 6/r32/esi 4/disp8 . # copy *(esi+4) to esi
# edi = out
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 7/r32/edi 8/disp8 . # copy *(ebp+8) to edi
@ -976,7 +978,7 @@ test-write-slice-buffered:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -1010,7 +1012,7 @@ test-write-slice-buffered:
c3/return
# copy a slice into a new (dynamically allocated) string
slice-to-string: # ad : (address allocation-descriptor), in : (address slice) -> out/eax : (address array)
slice-to-string: # ad : (address allocation-descriptor), in : (address slice) -> out/eax : (address array byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -1021,15 +1023,15 @@ slice-to-string: # ad : (address allocation-descriptor), in : (address slice) -
56/push-esi
# esi = in
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 0xc/disp8 . # copy *(ebp+12) to esi
# curr/edx = in->start
# var curr/edx : (address byte) = in->start
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
# max/ebx = in->end
# var max/ebx : (address byte) = in->end
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 3/r32/ebx 4/disp8 . # copy *(esi+4) to ebx
# size/ecx = max - curr + 4 # total size of output string (including the initial length)
# var size/ecx : int = max - curr + 4 # total size of output string (including the initial length)
89/copy 3/mod/direct 1/rm32/ecx . . . 3/r32/ebx . . # copy ebx to ecx
29/subtract 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # subtract edx from ecx
81 0/subop/add 3/mod/direct 1/rm32/ecx . . . . . 4/imm32 # add to ecx
# out/eax = allocate(ad, size)
# var out/eax : (handle array byte) = allocate(ad, size)
# . . push args
51/push-ecx
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8)
@ -1040,7 +1042,7 @@ slice-to-string: # ad : (address allocation-descriptor), in : (address slice) -
# if (eax == 0) abort
3d/compare-eax-and 0/imm32
74/jump-if-equal $slice-to-string:abort/disp8
# *out = size-4
# out->length = size-4
89/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy ecx to *eax
81 5/subop/subtract 0/mod/indirect 0/rm32/eax . . . . . 4/imm32 # subtract 4 from *eax
# save out
@ -1092,7 +1094,7 @@ test-slice-to-string:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var heap/edx : (address allocation-descriptor) = {0, 0}
# var heap/edx : (ref allocation-descriptor)
68/push 0/imm32/limit
68/push 0/imm32/curr
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -1109,7 +1111,7 @@ test-slice-to-string:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx

78
073next-token.subx
View File

@ -7,7 +7,7 @@
# extract the next run of characters that are different from a given 'delimiter' (skipping multiple delimiters if necessary)
# on reaching end of file, return an empty interval
next-token: # in : (address stream), delimiter : byte, out : (address slice)
next-token: # in : (address stream byte), delimiter : byte, out : (address slice)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -66,7 +66,7 @@ test-next-token:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -130,7 +130,7 @@ test-next-token-Eof:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -216,7 +216,7 @@ test-next-token-from-slice:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var out/edi : (address slice) = {0, 0}
# var out/edi : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
@ -265,7 +265,7 @@ test-next-token-from-slice-Eof:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var out/edi : (address slice) = {0, 0}
# var out/edi : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
@ -306,7 +306,7 @@ test-next-token-from-slice-nothing:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var out/edi : (address slice) = {0, 0}
# var out/edi : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
@ -338,7 +338,7 @@ test-next-token-from-slice-nothing:
5d/pop-to-ebp
c3/return
skip-chars-matching: # in : (address stream), delimiter : byte
skip-chars-matching: # in : (address stream byte), delimiter : byte
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -461,7 +461,7 @@ test-skip-chars-matching-none:
# end
c3/return
skip-chars-matching-whitespace: # in : (address stream)
skip-chars-matching-whitespace: # in : (address stream byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -551,7 +551,7 @@ test-skip-chars-matching-whitespace:
c3/return
# minor fork of 'skip-chars-matching'
skip-chars-not-matching: # in : (address stream), delimiter : byte
skip-chars-not-matching: # in : (address stream byte), delimiter : byte
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -713,7 +713,7 @@ test-skip-chars-not-matching-all:
# end
c3/return
skip-chars-not-matching-whitespace: # in : (address stream)
skip-chars-not-matching-whitespace: # in : (address stream byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -815,14 +815,15 @@ skip-chars-matching-in-slice: # curr : (address byte), end : (address byte), de
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
# edx = delimiter
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0x10/disp8 . # copy *(ebp+16) to edx
# ebx = 0
# var c/ebx : byte = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
$skip-chars-matching-in-slice:loop:
# if (curr >= end) break
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
73/jump-if-greater-or-equal-unsigned $skip-chars-matching-in-slice:end/disp8
# if (*curr != delimiter) break
# c = *curr
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
# if (c != delimiter) break
39/compare 3/mod/direct 3/rm32/ebx . . . 2/r32/edx . . # compare ebx and edx
75/jump-if-not-equal $skip-chars-matching-in-slice:end/disp8
# ++curr
@ -896,7 +897,7 @@ test-skip-chars-matching-in-slice-none:
# end
c3/return
skip-chars-matching-whitespace-in-slice: # in : (address stream)
skip-chars-matching-whitespace-in-slice: # curr : (address byte), end : (address byte) -> curr/eax
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -907,24 +908,24 @@ skip-chars-matching-whitespace-in-slice: # in : (address stream)
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax
# ecx = end
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
# ebx = 0
# var c/ebx : byte = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
$skip-chars-matching-whitespace-in-slice:loop:
# if (curr >= end) break
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
0f 83/jump-if-greater-or-equal-unsigned $skip-chars-matching-in-slice:end/disp32
# ebx = *curr
# c = *curr
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
# if (*curr == ' ') goto body
# if (c == ' ') goto body
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x20/imm32/space # compare ebx
74/jump-if-equal $skip-chars-matching-whitespace-in-slice:body/disp8
# if (*curr == '\n') goto body
# if (c == '\n') goto body
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0a/imm32/newline # compare ebx
74/jump-if-equal $skip-chars-matching-whitespace-in-slice:body/disp8
# if (*curr == '\t') goto body
# if (c == '\t') goto body
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x09/imm32/tab # compare ebx
74/jump-if-equal $skip-chars-matching-whitespace-in-slice:body/disp8
# if (*curr != '\r') break
# if (c != '\r') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0d/imm32/cr # compare ebx
75/jump-if-not-equal $skip-chars-matching-whitespace-in-slice:end/disp8
$skip-chars-matching-whitespace-in-slice:body:
@ -983,14 +984,15 @@ skip-chars-not-matching-in-slice: # curr : (address byte), end : (address byte)
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
# edx = delimiter
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0x10/disp8 . # copy *(ebp+16) to edx
# ebx = 0
# var c/ebx : byte = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
$skip-chars-not-matching-in-slice:loop:
# if (curr >= end) break
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
73/jump-if-greater-or-equal-unsigned $skip-chars-not-matching-in-slice:end/disp8
# if (*curr == delimiter) break
# c = *curr
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
# if (c == delimiter) break
39/compare 3/mod/direct 3/rm32/ebx . . . 2/r32/edx . . # compare ebx and edx
74/jump-if-equal $skip-chars-not-matching-in-slice:end/disp8
# ++curr
@ -1093,7 +1095,7 @@ test-skip-chars-not-matching-in-slice-all:
# end
c3/return
skip-chars-not-matching-whitespace-in-slice: # in : (address stream)
skip-chars-not-matching-whitespace-in-slice: # curr : (address byte), end : (address byte) -> curr/eax
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -1104,24 +1106,24 @@ skip-chars-not-matching-whitespace-in-slice: # in : (address stream)
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax
# ecx = end
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
# ebx = 0
# var c/ebx : byte = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
$skip-chars-not-matching-whitespace-in-slice:loop:
# if (curr >= end) break
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
0f 83/jump-if-greater-or-equal-unsigned $skip-chars-not-matching-in-slice:end/disp32
# ebx = *curr
# c = *curr
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
# if (*curr == ' ') break
# if (c == ' ') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x20/imm32/space # compare ebx
74/jump-if-equal $skip-chars-not-matching-whitespace-in-slice:end/disp8
# if (*curr == '\n') break
# if (c == '\n') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0a/imm32/newline # compare ebx
74/jump-if-equal $skip-chars-not-matching-whitespace-in-slice:end/disp8
# if (*curr == '\t') break
# if (c == '\t') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x09/imm32/tab # compare ebx
74/jump-if-equal $skip-chars-not-matching-whitespace-in-slice:end/disp8
# if (*curr == '\r') break
# if (c == '\r') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0d/imm32/cr # compare ebx
74/jump-if-equal $skip-chars-not-matching-whitespace-in-slice:end/disp8
# ++curr
@ -1166,7 +1168,7 @@ test-skip-chars-not-matching-whitespace-in-slice:
# update line->read to end of string literal surrounded by double quotes
# line->read must start out at a double-quote
skip-string: # line : (address stream)
skip-string: # line : (address stream byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -1420,7 +1422,7 @@ skip-string-in-slice: # curr : (address byte), end : (address byte) -> new_curr
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
# edx = end
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
# eax = 0
# var c/eax : byte = 0
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
# skip initial dquote
41/increment-ecx
@ -1428,14 +1430,14 @@ $skip-string-in-slice:loop:
# if (curr >= end) return curr
39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx
73/jump-if-greater-unsigned-or-equal $skip-string-in-slice:return-curr/disp8
# AL = *curr
# c = *curr
8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 0/r32/AL . . # copy byte at *ecx to AL
$skip-string-in-slice:dquote:
# if (eax == '"') break
# if (c == '"') break
3d/compare-eax-and 0x22/imm32/double-quote
74/jump-if-equal $skip-string-in-slice:break/disp8
$skip-string-in-slice:check-for-escape:
# if (eax == '\') escape next char
# if (c == '\') escape next char
3d/compare-eax-and 0x5c/imm32/backslash
75/jump-if-not-equal $skip-string-in-slice:continue/disp8
$skip-string-in-slice:escape:
@ -1594,7 +1596,7 @@ test-skip-string-in-slice-stops-at-end:
# update line->read to ')'
# line->read ends at ')'
skip-until-close-paren: # line : (address stream)
skip-until-close-paren: # line : (address stream byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -1781,7 +1783,7 @@ test-skip-until-close-paren-works-from-mid-stream:
5d/pop-to-ebp
c3/return
skip-until-close-paren-in-slice: # curr : (address byte), end : (address byte) -> new_curr/eax
skip-until-close-paren-in-slice: # curr : (address byte), end : (address byte) -> new_curr/eax : (address byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -1792,7 +1794,7 @@ skip-until-close-paren-in-slice: # curr : (address byte), end : (address byte)
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
# edx = end
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
# eax = 0
# var c/eax : byte = 0
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
# skip initial dquote
41/increment-ecx
@ -1800,10 +1802,10 @@ $skip-until-close-paren-in-slice:loop:
# if (curr >= end) break
39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx
73/jump-if-greater-unsigned-or-equal $skip-until-close-paren-in-slice:break/disp8
# AL = *curr
# c = *curr
8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 0/r32/AL . . # copy byte at *ecx to AL
$skip-until-close-paren-in-slice:check-close:
# if (eax == ')') break
# if (c == ')') break
3d/compare-eax-and 0x29/imm32/close-paren
74/jump-if-equal $skip-until-close-paren-in-slice:break/disp8
# ++curr

6
074write-stream-data.subx
View File

@ -8,7 +8,7 @@
# - construct a 'maximal slice' and pass it to write-slice-buffered
# - flush the buffered-file and pass the stream directly to its fd (disabling buffering)
# we'll go with the first way for now
write-stream-data: # f : (address buffered-file), s : (address stream)
write-stream-data: # f : (address buffered-file), s : (address stream byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -18,8 +18,8 @@ write-stream-data: # f : (address buffered-file), s : (address stream)
56/push-esi
# esi = s
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 0xc/disp8 . # copy *(ebp+12) to esi
# var slice/ecx = {s->data, s->data + s->write}
# . push s->data + s->write
# var slice/ecx : (ref slice) = {s->data, &s->data[s->write]}
# . push &s->data[s->write]
8b/copy 0/mod/indirect 6/rm32/esi . . . 0/r32/eax . . # copy *esi to eax
8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/esi 0/index/eax . 0/r32/eax 0xc/disp8 . # copy esi+eax+12 to eax
50/push-eax

12
075print-int-decimal.subx
View File

@ -5,7 +5,7 @@
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
print-int32-decimal: # out : (address stream), n : int32
print-int32-decimal: # out : (address stream byte), n : int32
# works by generating characters from lowest to highest and pushing them
# to the stack, before popping them one by one into the stream
#
@ -44,11 +44,11 @@ print-int32-decimal: # out : (address stream), n : int32
52/push-edx
53/push-ebx
57/push-edi
# ten/ecx = 10
# const ten/ecx = 10
b9/copy-to-ecx 0xa/imm32
# push sentinel
68/push 0/imm32/sentinel
# eax = abs(n)
# var eax : int = abs(n)
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 0xc/disp8 . # copy *(ebp+12) to eax
3d/compare-eax-with 0/imm32
7d/jump-if-greater-or-equal $print-int32-decimal:read-loop/disp8
@ -74,11 +74,11 @@ $print-int32-decimal:push-negative:
$print-int32-decimal:write:
# edi = out
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 8/disp8 . # copy *(ebp+8) to edi
# w/edx = out->write
# var w/edx : int = out->write
8b/copy 0/mod/indirect 7/rm32/edi . . . 2/r32/edx . . # copy *edi to edx
# curr/ecx = &out->data[out->write]
# var curr/ecx : (address byte) = &out->data[out->write]
8d/copy-address 1/mod/*+disp8 4/rm32/sib 7/base/edi 2/index/edx . 1/r32/ecx 0xc/disp8 . # copy ebx+edx+12 to ecx
# max/ebx = &out->data[out->length]
# var max/ebx : (address byte) = &out->data[out->length]
8b/copy 1/mod/*+disp8 7/rm32/edi . . . 3/r32/ebx 8/disp8 . # copy *(edi+8) to ebx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 7/base/edi 3/index/ebx . 3/r32/ebx 0xc/disp8 . # copy edi+ebx+12 to ebx
$print-int32-decimal:write-loop:

8
076next-word.subx
View File

@ -35,7 +35,7 @@ $next-word:check0:
# . if (eax < line->write) goto next check
3b/compare 0/mod/indirect 6/rm32/esi . . . 0/r32/eax . . # compare eax with *esi
7c/jump-if-lesser $next-word:check-for-comment/disp8
# . return out = {0, 0}
# . return out
c7 0/subop/copy 0/mod/direct 7/rm32/edi . . . . . 0/imm32 # copy to *edi
c7 0/subop/copy 1/mod/*+disp8 7/rm32/edi . . . . 4/disp8 0/imm32 # copy to *(edi+4)
eb/jump $next-word:end/disp8
@ -95,7 +95,7 @@ test-next-word:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -158,7 +158,7 @@ test-next-word-returns-whole-comment:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -221,7 +221,7 @@ test-next-word-returns-empty-string-on-eof:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx

70
077subx-words.subx
View File

@ -25,9 +25,9 @@ has-metadata?: # word : (address slice), s : (address string) -> eax : boolean
57/push-edi
# esi = word
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# edx = word->end
# var edx : (address byte) = word->end
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 2/r32/edx 4/disp8 . # copy *(esi+4) to edx
# var twig/edi : (address slice) = {0, 0}
# var twig/edi : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
@ -41,15 +41,13 @@ has-metadata?: # word : (address slice), s : (address string) -> eax : boolean
e8/call next-token-from-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # add to esp
# curr/ecx = twig->end
8b/copy 1/mod/*+disp8 7/rm32/edi . . . 1/r32/ecx 4/disp8 . # copy *(edi+4) to ecx
$has-metadata?:loop:
# next-token-from-slice(curr, word->end, '/', twig)
# . . push args
57/push-edi
68/push 0x2f/imm32/slash
52/push-edx
51/push-ecx
ff 6/subop/push 1/mod/*+disp8 7/rm32/edi . . . . 4/disp8 . # push *(edi+4)
# . . call
e8/call next-token-from-slice/disp32
# . . discard args
@ -62,8 +60,8 @@ $has-metadata?:loop:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) return false
3d/compare-eax-and 0/imm32
# . if (eax != false) return false
3d/compare-eax-and 0/imm32/false
75/jump-if-not-equal $has-metadata?:false/disp8
# if (slice-equal?(twig, s)) return true
# . eax = slice-equal?(twig, s)
@ -74,15 +72,11 @@ $has-metadata?:loop:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return true
3d/compare-eax-and 0/imm32
75/jump-if-not-equal $has-metadata?:true/disp8
# curr = twig->end
8b/copy 1/mod/*+disp8 7/rm32/edi . . . 1/r32/ecx 4/disp8 . # copy *(edi+4) to ecx
# . if (eax != false) return true
3d/compare-eax-and 0/imm32/false
# eax already contains true
75/jump-if-not-equal $has-metadata?:end/disp8
eb/jump $has-metadata?:loop/disp8
$has-metadata?:true:
b8/copy-to-eax 1/imm32/true
eb/jump $has-metadata?:end/disp8
$has-metadata?:false:
b8/copy-to-eax 0/imm32/false
$has-metadata?:end:
@ -107,7 +101,7 @@ test-has-metadata-true:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var in/esi : (address slice) = {eax, ecx}
# var in/esi : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 6/rm32/esi . . . 4/r32/esp . . # copy esp to esi
@ -142,7 +136,7 @@ test-has-metadata-false:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var in/esi : (address slice) = {eax, ecx}
# var in/esi : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 6/rm32/esi . . . 4/r32/esp . . # copy esp to esi
@ -177,7 +171,7 @@ test-has-metadata-ignore-name:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var in/esi : (address slice) = {eax, ecx}
# var in/esi : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 6/rm32/esi . . . 4/r32/esp . . # copy esp to esi
@ -212,7 +206,7 @@ test-has-metadata-multiple-true:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var in/esi : (address slice) = {eax, ecx}
# var in/esi : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 6/rm32/esi . . . 4/r32/esp . . # copy esp to esi
@ -247,7 +241,7 @@ test-has-metadata-multiple-false:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var in/esi : (address slice) = {eax, ecx}
# var in/esi : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 6/rm32/esi . . . 4/r32/esp . . # copy esp to esi
@ -290,22 +284,21 @@ is-valid-name?: # in : (address slice) -> eax : boolean
56/push-esi
# esi = in
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# start/ecx = in->start
# var start/ecx : (address byte) = in->start
8b/copy 0/mod/indirect 6/rm32/esi . . . 1/r32/ecx . . # copy *esi to ecx
# end/eax = in->end
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 0/r32/eax 4/disp8 . # copy *(esi+4) to eax
$is-valid-name?:check0:
# if (start >= end) return false
39/compare 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # compare ecx with eax
# if (start >= in->end) return false
3b/compare 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # compare ecx with *(esi+4)
73/jump-if-greater-or-equal-unsigned $is-valid-name?:false/disp8
$is-valid-name?:check1:
# eax -= ecx
# var len/eax : int = in->end - start
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 0/r32/eax 4/disp8 . # copy *(esi+4) to eax
29/subtract 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # subtract ecx from eax
# if (eax == 2) return false
3d/compare-eax-and 2/imm32
74/jump-if-equal $is-valid-name?:false/disp8
$is-valid-name?:check2:
# c/eax = *ecx
# var c/eax : (address byte) = *start
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 0/r32/AL . . # copy byte at *ecx to AL
# if (c == "-") return false
@ -344,7 +337,7 @@ test-is-valid-name-digit-prefix:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -378,7 +371,7 @@ test-is-valid-name-negative-prefix:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -412,7 +405,7 @@ test-is-valid-name-0x-prefix:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -446,7 +439,7 @@ test-is-valid-name-starts-with-pre-digit:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -480,7 +473,7 @@ test-is-valid-name-starts-with-post-digit:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -514,7 +507,7 @@ test-is-valid-name-starts-with-digit:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -547,12 +540,11 @@ is-label?: # word : (address slice) -> eax : boolean
51/push-ecx
# ecx = word
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
# ecx = word->end
# var end/ecx : (address byte) = word->end
8b/copy 1/mod/*+disp8 1/rm32/ecx . . . 1/r32/ecx 4/disp8 . # copy *(ecx+4) to ecx
# return *(word->end - 1) == ':'
# . eax = 0
# return *(end - 1) == ':'
# . eax = *(end-1)
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
# . eax = *((char *) word->end - 1)
8a/copy-byte 1/mod/*+disp8 1/rm32/ecx . . . 0/r32/AL -1/disp8 . # copy byte at *(ecx-1) to AL
# . return (eax == ':')
3d/compare-eax-and 0x3a/imm32/colon
@ -577,7 +569,7 @@ $test-is-label?:true:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -603,7 +595,7 @@ $test-is-label?:false:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx

4
078emit-hex.subx
View File

@ -20,13 +20,13 @@ emit-hex: # out : (address buffered-file), n : int, width : int
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 3/r32/ebx 0xc/disp8 . # copy *(ebp+12) to ebx
# edx = width
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0x10/disp8 . # copy *(ebp+16) to edx
# var curr/ecx = 0
# var curr/ecx : int = 0
31/xor 3/mod/direct 1/rm32/ecx . . . 1/r32/ecx . . # clear ecx
$emit-hex:loop:
# if (curr >= width) break
39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx
7d/jump-if-greater-or-equal $emit-hex:end/disp8
# print-byte-buffered(out, ebx)
# print-byte-buffered(out, ebx) # only BL used
# . . push args
53/push-ebx
57/push-edi

26
079emit.subx
View File

@ -17,7 +17,7 @@ emit: # out : (address buffered-file), word : (address slice), width : int
57/push-edi
# esi = word
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 0xc/disp8 . # copy *(ebp+12) to esi
# var name/edi : (address slice) = {0, 0}
# var datum/edi : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
@ -39,8 +39,8 @@ emit: # out : (address buffered-file), word : (address slice), width : int
e8/call is-valid-name?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0)
3d/compare-eax-and 0/imm32
# . if (eax != false)
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $emit:hex-int/disp8
$emit:name:
# . write-slice-buffered(out, word)
@ -63,11 +63,11 @@ $emit:name:
eb/jump $emit:end/disp8
# otherwise emit-hex(out, parse-hex-int(datum), width)
# (Weird shit can happen here if the datum of 'word' isn't either a valid
# name or a hex number, but we're only going to be passing in real legal
# programs. We just want to make sure that valid names aren't treated as
# (valid) hex numbers.)
# name or a hex number. `emit` is mostly used by ntranslate, which is
# currently designed to only receive legal SubX programs. We just want to
# make sure that valid names aren't treated as (valid) hex numbers.)
$emit:hex-int:
# . value/eax = parse-hex-int(datum)
# . var value/eax : int = parse-hex-int(datum)
# . . push args
57/push-edi
# . . call
@ -119,7 +119,7 @@ test-emit-number:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -178,7 +178,7 @@ test-emit-negative-number:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -236,7 +236,7 @@ test-emit-number-with-metadata:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -295,7 +295,7 @@ test-emit-non-number:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -353,7 +353,7 @@ test-emit-non-number-with-metadata:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -411,7 +411,7 @@ test-emit-non-number-with-all-hex-digits-and-metadata:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var slice/ecx = {eax, ecx}
# var slice/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx

4
080zero-out.subx
View File

@ -5,7 +5,7 @@
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
zero-out: # start : address, len : int
zero-out: # start : (address byte), len : int
# pseudocode:
# curr/esi = start
# i/ecx = 0
@ -25,7 +25,7 @@ zero-out: # start : address, len : int
56/push-esi
# curr/esi = start
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# i/ecx = 0
# var i/ecx : int = 0
31/xor 3/mod/direct 1/rm32/ecx . . . 1/r32/ecx . . # clear ecx
# edx = len
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx

123
081table.subx
View File

@ -1,7 +1,7 @@
# A table is a stream of (key, value) rows.
#
# Each row consists of a 4-byte key (address to a string) and a variable-size
# value.
# Each row consists of a 4-byte key -- a 'string_key' which is (address array
# byte) -- and a variable-size value.
#
# Accessing the table performs a linear scan for a key string, and always
# requires passing in the row size.
@ -23,7 +23,8 @@
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
# if no row is found, abort
get: # table : (address stream {string, _}), key : (address string), row-size : int, abort-message-prefix : (address string) -> eax : (address _)
# type string_key = (address array byte)
get: # table : (address stream {string_key, T}), key : string_key, row-size : int, abort-message-prefix : (address array byte) -> eax : (address T)
# pseudocode:
# curr = table->data
# max = &table->data[table->write]
@ -42,9 +43,9 @@ get: # table : (address stream {string, _}), key : (address string), row-size :
56/push-esi
# esi = table
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# curr/ecx = table->data
# var curr/ecx : (address string_key) = table->data
8d/copy-address 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 0xc/disp8 . # copy esi+12 to ecx
# max/edx = table->data + table->write
# var max/edx : (address byte) = &table->data[table->write]
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
8d/copy-address 0/mod/indirect 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx . . # copy ecx+edx to edx
$get:search-loop:
@ -60,8 +61,8 @@ $get:search-loop:
e8/call string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return eax = curr+4
3d/compare-eax-and 0/imm32
# . if (eax != false) return eax = curr+4
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $get:mismatch/disp8
8d/copy-address 1/mod/*+disp8 1/rm32/ecx . . . 0/r32/eax 4/disp8 . # copy ecx+4 to eax
eb/jump $get:end/disp8
@ -124,7 +125,7 @@ test-get:
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# - setup: create a table with a couple of keys
# var table/ecx : (address stream {string, number}) = stream(2 rows * 8 bytes)
# var table/ecx : (ref stream {string, number} 16) # 2 rows * 8 bytes/row
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # subtract from esp
68/push 0x10/imm32/length
68/push 0/imm32/read
@ -197,7 +198,7 @@ $test-get:end:
c3/return
# if no row is found, abort
get-slice: # table : (address stream {string, _}), key : (address slice), row-size : int, abort-message-prefix : (address string) -> eax : (address _)
get-slice: # table : (address stream {string_key, T}), key : (address slice), row-size : int, abort-message-prefix : (address array byte) -> eax : (address T)
# pseudocode:
# curr = table->data
# max = &table->data[table->write]
@ -216,9 +217,9 @@ get-slice: # table : (address stream {string, _}), key : (address slice), row-s
56/push-esi
# esi = table
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# curr/ecx = table->data
# var curr/ecx : (address string_key) = table->data
8d/copy-address 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 0xc/disp8 . # copy esi+12 to ecx
# max/edx = table->data + table->write
# var max/edx : (address byte) = &table->data[table->write]
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
8d/copy-address 0/mod/indirect 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx . . # copy ecx+edx to edx
$get-slice:search-loop:
@ -234,8 +235,8 @@ $get-slice:search-loop:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return eax = curr+4
3d/compare-eax-and 0/imm32
# . if (eax != false) return eax = curr+4
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $get-slice:mismatch/disp8
8d/copy-address 1/mod/*+disp8 1/rm32/ecx . . . 0/r32/eax 4/disp8 . # copy ecx+4 to eax
eb/jump $get-slice:end/disp8
@ -305,7 +306,7 @@ test-get-slice:
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# - setup: create a table with a couple of keys
# var table/ecx : (address stream {string, number}) = stream(2 rows * 8 bytes)
# var table/ecx : (ref stream {string, number} 16) # 2 rows * 8 bytes/row
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # subtract from esp
68/push 0x10/imm32/length
68/push 0/imm32/read
@ -335,7 +336,7 @@ $test-get-slice:check1:
8b/copy 0/mod/indirect 0/rm32/eax . . . 2/r32/edx . . # copy *eax to edx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 2/index/edx . 2/r32/edx 4/disp8 . # copy eax+edx+4 to edx
05/add-to-eax 4/imm32
# var slice/edx = {eax, edx}
# var slice/edx : (ref slice) = {eax, edx}
52/push-edx
50/push-eax
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -365,7 +366,7 @@ $test-get-slice:check2:
8b/copy 0/mod/indirect 0/rm32/eax . . . 2/r32/edx . . # copy *eax to edx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 2/index/edx . 2/r32/edx 4/disp8 . # copy eax+edx+4 to edx
05/add-to-eax 4/imm32
# var slice/edx = {eax, edx}
# var slice/edx : (ref slice) = {eax, edx}
52/push-edx
50/push-eax
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -400,7 +401,7 @@ $test-get-slice:end:
# return the address of the value
# Beware: assume keys are immutable; they're inserted by reference
# TODO: pass in an allocation descriptor
get-or-insert: # table : (address stream {string, _}), key : (address string), row-size : int -> eax : (address _)
get-or-insert: # table : (address stream {string_key, T}), key : string_key, row-size : int -> eax : (address T)
# pseudocode:
# curr = table->data
# max = &table->data[table->write]
@ -424,9 +425,9 @@ get-or-insert: # table : (address stream {string, _}), key : (address string),
56/push-esi
# esi = table
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# curr/ecx = table->data
# var curr/ecx : (address string_key) = table->data
8d/copy-address 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 0xc/disp8 . # copy esi+12 to ecx
# max/edx = table->data + table->write
# var max/edx : (address string_key) = &table->data[table->write]
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
8d/copy-address 0/mod/indirect 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx . . # copy ecx+edx to edx
$get-or-insert:search-loop:
@ -442,8 +443,8 @@ $get-or-insert:search-loop:
e8/call string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return eax = curr+4
3d/compare-eax-and 0/imm32
# . if (eax != false) return eax = curr+4
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $get-or-insert:mismatch/disp8
8d/copy-address 1/mod/*+disp8 1/rm32/ecx . . . 0/r32/eax 4/disp8 . # copy ecx+4 to eax
eb/jump $get-or-insert:end/disp8
@ -511,7 +512,7 @@ test-get-or-insert:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var table/ecx : (address stream {string, number}) = stream(2 rows * 8 bytes)
# var table/ecx : (ref stream {string, number} 16) # 2 rows * 8 bytes/row
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # subtract from esp
68/push 0x10/imm32/length
68/push 0/imm32/read
@ -651,7 +652,7 @@ $test-get-or-insert:end:
# if there are no rows free, abort
# WARNING: leaks memory
# TODO: pass in an allocation descriptor
leaky-get-or-insert-slice: # table : (address stream {string, _}), key : (address slice), row-size : int -> eax : (address _)
leaky-get-or-insert-slice: # table : (address stream {string_key, T}), key : (address slice), row-size : int -> eax : (address T)
# pseudocode:
# curr = table->data
# max = &table->data[table->write]
@ -675,9 +676,9 @@ leaky-get-or-insert-slice: # table : (address stream {string, _}), key : (addre
56/push-esi
# esi = table
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# curr/ecx = table->data
# var curr/ecx : (address string_key) = table->data
8d/copy-address 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 0xc/disp8 . # copy esi+12 to ecx
# max/edx = table->data + table->write
# var max/edx : (address string_key) = &table->data[table->write]
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
8d/copy-address 0/mod/indirect 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx . . # copy ecx+edx to edx
$leaky-get-or-insert-slice:search-loop:
@ -693,8 +694,8 @@ $leaky-get-or-insert-slice:search-loop:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return eax = curr+4
3d/compare-eax-and 0/imm32
# . if (eax != false) return eax = curr+4
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $leaky-get-or-insert-slice:mismatch/disp8
8d/copy-address 1/mod/*+disp8 1/rm32/ecx . . . 0/r32/eax 4/disp8 . # copy ecx+4 to eax
eb/jump $leaky-get-or-insert-slice:end/disp8
@ -768,7 +769,7 @@ test-leaky-get-or-insert-slice:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var table/ecx : (address stream {string, number}) = stream(2 rows * 8 bytes)
# var table/ecx : (ref stream {string, number} 16) # 2 rows * 8 bytes/row
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # subtract from esp
68/push 0x10/imm32/length
68/push 0/imm32/read
@ -779,7 +780,7 @@ test-leaky-get-or-insert-slice:
8b/copy 0/mod/indirect 0/rm32/eax . . . 2/r32/edx . . # copy *eax to edx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 2/index/edx . 2/r32/edx 4/disp8 . # copy eax+edx+4 to edx
05/add-to-eax 4/imm32
# var slice/edx = {eax, edx}
# var slice/edx : (ref slice) = {eax, edx}
52/push-edx
50/push-eax
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -872,7 +873,7 @@ $test-leaky-get-or-insert-slice:third-call:
8b/copy 0/mod/indirect 0/rm32/eax . . . 2/r32/edx . . # copy *eax to edx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 2/index/edx . 2/r32/edx 4/disp8 . # copy eax+edx+4 to edx
05/add-to-eax 4/imm32
# var slice/edx = {eax, edx}
# var slice/edx : (ref slice) = {eax, edx}
52/push-edx
50/push-eax
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -923,9 +924,9 @@ $test-leaky-get-or-insert-slice:end:
c3/return
# if no row is found, stop(ed)
get-or-stop: # table : (address stream {string, _}), key : (address string), row-size : int,
# abort-message-prefix : (address string), err : (address buffered-file), ed : (address exit-descriptor)
# -> eax : (address _)
get-or-stop: # table : (address stream {string_key, T}), key : string_key, row-size : int,
# abort-message-prefix : (address array byte), err : (address buffered-file), ed : (address exit-descriptor)
# -> eax : (address T)
# pseudocode:
# curr = table->data
# max = &table->data[table->write]
@ -945,9 +946,9 @@ get-or-stop: # table : (address stream {string, _}), key : (address string), ro
56/push-esi
# esi = table
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# curr/ecx = table->data
# var curr/ecx : (address string_key) = table->data
8d/copy-address 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 0xc/disp8 . # copy esi+12 to ecx
# max/edx = table->data + table->write
# var max/edx : (address byte) = &table->data[table->write]
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
8d/copy-address 0/mod/indirect 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx . . # copy ecx+edx to edx
$get-or-stop:search-loop:
@ -963,8 +964,8 @@ $get-or-stop:search-loop:
e8/call string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return eax = curr+4
3d/compare-eax-and 0/imm32
# . if (eax != false) return eax = curr+4
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $get-or-stop:mismatch/disp8
8d/copy-address 1/mod/*+disp8 1/rm32/ecx . . . 0/r32/eax 4/disp8 . # copy ecx+4 to eax
eb/jump $get-or-stop:end/disp8
@ -1050,13 +1051,13 @@ test-get-or-stop:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var table/ecx : (address stream {string, number}) = stream(2 rows * 8 bytes)
# var table/ecx : (ref stream {string, number} 16) # 2 rows * 8 bytes/row
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # subtract from esp
68/push 0x10/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var ed/edx : (address exit-descriptor)
# var ed/edx : (ref exit-descriptor)
68/push 0/imm32
68/push 0/imm32
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -1139,7 +1140,7 @@ $test-get-or-stop:end:
c3/return
# if no row is found, stop(ed)
get-slice-or-stop: # table : (address stream {string, _}), key : (address slice), row-size : int,
get-slice-or-stop: # table : (address stream {string_key, _}), key : (address slice), row-size : int,
# abort-message-prefix : (address string), err : (address buffered-file), ed : (address exit-descriptor)
# -> eax : (address _)
# pseudocode:
@ -1161,9 +1162,9 @@ get-slice-or-stop: # table : (address stream {string, _}), key : (address slice
56/push-esi
# esi = table
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# curr/ecx = table->data
# var curr/ecx : (address string_key) = table->data
8d/copy-address 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 0xc/disp8 . # copy esi+12 to ecx
# max/edx = table->data + table->write
# var max/edx : (address byte) = &table->data[table->write]
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
8d/copy-address 0/mod/indirect 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx . . # copy ecx+edx to edx
$get-slice-or-stop:search-loop:
@ -1179,8 +1180,8 @@ $get-slice-or-stop:search-loop:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return eax = curr+4
3d/compare-eax-and 0/imm32
# . if (eax != false) return eax = curr+4
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $get-slice-or-stop:mismatch/disp8
8d/copy-address 1/mod/*+disp8 1/rm32/ecx . . . 0/r32/eax 4/disp8 . # copy ecx+4 to eax
eb/jump $get-slice-or-stop:end/disp8
@ -1266,17 +1267,17 @@ test-get-slice-or-stop:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var table/ecx : (address stream {string, number}) = stream(2 rows * 8 bytes)
# var table/ecx : (ref stream {string, number} 16) # 2 rows * 8 bytes/row
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # subtract from esp
68/push 0x10/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var ed/edx : (address exit-descriptor)
# var ed/edx : (ref exit-descriptor)
68/push 0/imm32
68/push 0/imm32
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
# var slice/ebx = "code"
# var slice/ebx : (ref slice) = "code"
# . (eax..ebx) = "code"
b8/copy-to-eax "code"/imm32
8b/copy 0/mod/indirect 0/rm32/eax . . . 3/r32/ebx . . # copy *eax to ebx
@ -1378,7 +1379,7 @@ $test-get-slice-or-stop:end:
c3/return
# if no row is found, return null (0)
maybe-get: # table : (address stream {string, _}), key : (address string), row-size : int -> eax : (address _)
maybe-get: # table : (address stream {string_key, T}), key : string_key, row-size : int -> eax : (address T)
# pseudocode:
# curr = table->data
# max = &table->data[table->write]
@ -1397,9 +1398,9 @@ maybe-get: # table : (address stream {string, _}), key : (address string), row-
56/push-esi
# esi = table
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# curr/ecx = table->data
# var curr/ecx : (address string_key) = table->data
8d/copy-address 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 0xc/disp8 . # copy esi+12 to ecx
# max/edx = table->data + table->write
# var max/edx : (address byte) = &table->data[table->write]
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
8d/copy-address 0/mod/indirect 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx . . # copy ecx+edx to edx
$maybe-get:search-loop:
@ -1415,8 +1416,8 @@ $maybe-get:search-loop:
e8/call string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return eax = curr+4
3d/compare-eax-and 0/imm32
# . if (eax != false) return eax = curr+4
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $maybe-get:mismatch/disp8
8d/copy-address 1/mod/*+disp8 1/rm32/ecx . . . 0/r32/eax 4/disp8 . # copy ecx+4 to eax
eb/jump $maybe-get:end/disp8
@ -1442,7 +1443,7 @@ test-maybe-get:
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# - setup: create a table with one row
# var table/ecx : (address stream {string, number}) = stream(2 rows * 8 bytes)
# var table/ecx : (ref stream {string, number} 16) # 2 rows * 8 bytes/row
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # subtract from esp
68/push 0x10/imm32/length
68/push 0/imm32/read
@ -1525,7 +1526,7 @@ $test-maybe-get:end:
c3/return
# if no row is found, return null (0)
maybe-get-slice: # table : (address stream {string, _}), key : (address slice), row-size : int -> eax : (address _)
maybe-get-slice: # table : (address stream {string_key, T}), key : (address slice), row-size : int -> eax : (address T)
# pseudocode:
# curr = table->data
# max = &table->data[table->write]
@ -1544,9 +1545,9 @@ maybe-get-slice: # table : (address stream {string, _}), key : (address slice),
56/push-esi
# esi = table
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# curr/ecx = table->data
# var curr/ecx : (address string_key) = table->data
8d/copy-address 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 0xc/disp8 . # copy esi+12 to ecx
# max/edx = table->data + table->write
# var max/edx : (address byte) = &table->data[table->write]
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
8d/copy-address 0/mod/indirect 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx . . # copy ecx+edx to edx
$maybe-get-slice:search-loop:
@ -1562,8 +1563,8 @@ $maybe-get-slice:search-loop:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return eax = curr+4
3d/compare-eax-and 0/imm32
# . if (eax != false) return eax = curr+4
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $maybe-get-slice:mismatch/disp8
8d/copy-address 1/mod/*+disp8 1/rm32/ecx . . . 0/r32/eax 4/disp8 . # copy ecx+4 to eax
eb/jump $maybe-get-slice:end/disp8
@ -1589,7 +1590,7 @@ test-maybe-get-slice:
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# - setup: create a table with one row
# var table/ecx : (address stream {string, number}) = stream(2 rows * 8 bytes)
# var table/ecx : (ref stream {string, number} 16) # 2 rows * 8 bytes/row
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # subtract from esp
68/push 0x10/imm32/length
68/push 0/imm32/read
@ -1611,7 +1612,7 @@ $test-maybe-get-slice:success:
8b/copy 0/mod/indirect 0/rm32/eax . . . 2/r32/edx . . # copy *eax to edx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 2/index/edx . 2/r32/edx 4/disp8 . # copy eax+edx+4 to edx
05/add-to-eax 4/imm32
# var slice/edx = {eax, edx}
# var slice/edx : (ref slice) = {eax, edx}
52/push-edx
50/push-eax
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -1661,7 +1662,7 @@ $test-maybe-get-slice:failure:
8b/copy 0/mod/indirect 0/rm32/eax . . . 2/r32/edx . . # copy *eax to edx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 2/index/edx . 2/r32/edx 4/disp8 . # copy eax+edx+4 to edx
05/add-to-eax 4/imm32
# var slice/edx = {eax, edx}
# var slice/edx : (ref slice) = {eax, edx}
52/push-edx
50/push-eax
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx

4
082slurp.subx
View File

@ -63,10 +63,10 @@ $slurp:loop:
3d/compare-eax-and 0/imm32
74/jump-if-equal $slurp:end/disp8
$slurp:from-stream:
# AL = f->data[f->read]
# var c/eax : byte = f->data[f->read]
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/AL 0x10/disp8 . # copy byte at *(esi+ecx+16) to AL
# s->data[s->write] = AL
# s->data[s->write] = c
88/copy-byte 1/mod/*+disp8 4/rm32/sib 7/base/edi 2/index/edx . 0/r32/AL 0xc/disp8 . # copy AL to *(edi+edx+12)
# ++f->read
41/increment-ecx

25
083subx-widths.subx
View File

@ -1,3 +1,8 @@
# Helpers to compute widths of SubX arguments based on their metadata.
# /imm8 => 1 byte,
# /disp32 => 4 bytes,
# and so on.
== code
# instruction effective address register displacement immediate
# . op subop mod rm32 base index scale r32
@ -11,12 +16,12 @@ compute-width: # word : (address array byte) -> eax : int
51/push-ecx
# eax = word
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to ecx
# ecx = word + word->length
# var ecx : (address byte) = &word[word->length]
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
# eax = word->data
05/add-to-eax 4/imm32
# var in/ecx : (address slice) = {eax, ecx}
# var in/ecx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -54,8 +59,8 @@ compute-width-of-slice: # s : (address slice) -> eax : int
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return 4
3d/compare-eax-and 0/imm32
# . if (eax != false) return 4
3d/compare-eax-and 0/imm32/false
b8/copy-to-eax 4/imm32 # ZF is set, so we can overwrite eax now
75/jump-if-not-equal $compute-width-of-slice:end/disp8
# if (has-metadata?(word, "disp32")) return 4
@ -67,8 +72,8 @@ compute-width-of-slice: # s : (address slice) -> eax : int
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return 4
3d/compare-eax-and 0/imm32
# . if (eax != false) return 4
3d/compare-eax-and 0/imm32/false
b8/copy-to-eax 4/imm32 # ZF is set, so we can overwrite eax now
75/jump-if-not-equal $compute-width-of-slice:end/disp8
# if (has-metadata?(word, "imm16")) return 2
@ -80,8 +85,8 @@ compute-width-of-slice: # s : (address slice) -> eax : int
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return 2
3d/compare-eax-and 0/imm32
# . if (eax != false) return 2
3d/compare-eax-and 0/imm32/false
b8/copy-to-eax 2/imm32 # ZF is set, so we can overwrite eax now
75/jump-if-not-equal $compute-width-of-slice:end/disp8
# if (has-metadata?(word, "disp16")) return 2
@ -93,8 +98,8 @@ compute-width-of-slice: # s : (address slice) -> eax : int
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return 2
3d/compare-eax-and 0/imm32
# . if (eax != false) return 2
3d/compare-eax-and 0/imm32/false
b8/copy-to-eax 2/imm32 # ZF is set, so we can overwrite eax now
75/jump-if-not-equal $compute-width-of-slice:end/disp8
# otherwise return 1

12
084emit-hex-array.subx
View File

@ -15,20 +15,20 @@ emit-hex-array: # out : (address buffered-file), arr : (address array byte)
57/push-edi
# edi = out
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 8/disp8 . # copy *(ebp+8) to edi
# edx = arr # <== 0xbdffffe4
# edx = arr
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
# curr/ecx = arr->data
# var curr/ecx : (address byte) = arr->data
8d/copy-address 1/mod/*+disp8 2/rm32/edx . . . 1/r32/ecx 4/disp8 . # copy edx+4 to ecx
# max/edx = arr->data + arr->length
# var max/edx : (address byte) = &arr->data[arr->length]
8b/copy 0/mod/indirect 2/rm32/edx . . . 2/r32/edx . . # copy *edx to edx
01/add 3/mod/direct 2/rm32/edx . . . 1/r32/ecx . . # add ecx to edx
# eax = 0
# var c/eax : byte = 0
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
$emit-hex-array:loop:
# if (curr >= width) break
39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx
73/jump-if-greater-or-equal-unsigned $emit-hex-array:end/disp8
# emit-hex(out, *curr, width=1)
# emit-hex(out, c = *curr, width=1)
# . . push args
68/push 1/imm32/width
8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 0/r32/AL . . # copy byte at *ecx to AL
@ -71,7 +71,7 @@ test-emit-hex-array:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var arr/ecx (address array byte) = [01, 02, 03]
# var arr/ecx (ref array byte) = [01, 02, 03]
68/push 0x00030201/imm32 # bytes 01 02 03
68/push 3/imm32/length
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx

2
092write-int.subx
View File

@ -5,7 +5,7 @@
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
write-int: # out : (address stream), n : int
write-int: # out : (address stream byte), n : int
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp

60
093array-equal.subx
View File

@ -40,27 +40,29 @@ array-equal?: # a : (address array int), b : (address array int) -> eax : boole
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# edi = b
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 0xc/disp8 . # copy *(ebp+12) to edi
# lena/edx = a->length
# var lena/edx : int = a->length
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
$array-equal?:lengths:
# if (lena != b->length) return false
39/compare 0/mod/indirect 7/rm32/edi . . . 2/r32/edx . . # compare *edi and edx
75/jump-if-not-equal $array-equal?:false/disp8
# curra/esi = a->data
# var curra/esi : (address byte) = a->data
81 0/subop/add 3/mod/direct 6/rm32/esi . . . . . 4/imm32 # add to esi
# currb/edi = b->data
# var currb/edi : (address byte) = b->data
81 0/subop/add 3/mod/direct 7/rm32/edi . . . . . 4/imm32 # add to edi
# i/ecx = i1/eax = i2/ebx = 0
# var i/ecx : int = 0
31/xor 3/mod/direct 1/rm32/ecx . . . 1/r32/ecx . . # clear ecx
# var vala/eax : int
# var valb/ebx : int
$array-equal?:loop:
# if (i >= lena) return true
39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx
7d/jump-if-greater-or-equal $array-equal?:true/disp8
# i1 = *curra
# vala = *curra
8b/copy 0/mod/indirect 6/rm32/esi . . . 0/r32/eax . . # copy *esi to eax
# i2 = *currb
# valb = *currb
8b/copy 0/mod/indirect 7/rm32/edi . . . 3/r32/ebx . . # copy *edi to ebx
# if (i1 != i2) return false
# if (vala != valb) return false
39/compare 3/mod/direct 0/rm32/eax . . . 3/r32/ebx . . # compare eax and ebx
75/jump-if-not-equal $array-equal?:false/disp8
# i += 4
@ -91,10 +93,10 @@ test-compare-empty-with-empty-array:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var ecx = []
# var ecx : (ref array _) = []
68/push 0/imm32/size
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var edx = []
# var edx : (ref array _) = []
68/push 0/imm32/size
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
# eax = array-equal?(ecx, edx)
@ -123,11 +125,11 @@ test-compare-empty-with-non-empty-array: # also checks length-mismatch code pat
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var ecx = [1]
# var ecx : (ref array int) = [1]
68/push 1/imm32
68/push 4/imm32/size
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var edx = []
# var edx : (ref array int) = []
68/push 0/imm32/size
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
# eax = array-equal?(ecx, edx)
@ -156,13 +158,13 @@ test-compare-equal-arrays:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var ecx = [1, 2, 3]
# var ecx : (ref array int) = [1, 2, 3]
68/push 3/imm32
68/push 2/imm32
68/push 1/imm32
68/push 0xc/imm32/size
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var edx = [1, 2, 3]
# var edx : (ref array int) = [1, 2, 3]
68/push 3/imm32
68/push 2/imm32
68/push 1/imm32
@ -194,13 +196,13 @@ test-compare-inequal-arrays-equal-lengths:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var ecx = [1, 4, 3]
# var ecx : (ref array int) = [1, 4, 3]
68/push 3/imm32
68/push 4/imm32
68/push 1/imm32
68/push 0xc/imm32/size
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var edx = [1, 2, 3]
# var edx : (ref array int) = [1, 2, 3]
68/push 3/imm32
68/push 2/imm32
68/push 1/imm32
@ -228,9 +230,9 @@ test-compare-inequal-arrays-equal-lengths:
5d/pop-to-ebp
c3/return
parse-array-of-ints: # ad : (address allocation-descriptor), s : (address string) -> result/eax : (address array int)
parse-array-of-ints: # ad : (address allocation-descriptor), s : (address string) -> result/eax : (handle array int)
# pseudocode
# end = s->data + s->length
# end = &s->data[s->length]
# curr = s->data
# size = 0
# while true
@ -241,7 +243,7 @@ parse-array-of-ints: # ad : (address allocation-descriptor), s : (address strin
# ++size
# result = allocate(ad, (size+1)*4)
# result->size = (size+1)*4
# var slice = {s->data, 0}
# var slice : (ref slice) = {s->data, 0}
# out = result->data
# while true
# if (slice->start >= end) break
@ -264,14 +266,14 @@ parse-array-of-ints: # ad : (address allocation-descriptor), s : (address strin
57/push-edi
# esi = s
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 0xc/disp8 . # copy *(ebp+12) to esi
# curr/ecx = s->data
# var curr/ecx : (address byte) = s->data
8d/copy-address 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy esi+4 to ecx
# end/edx = s->data + s->length
# var end/edx : (address byte) = &s->data[s->length]
# . edx = s->length
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
# . edx += curr
01/add 3/mod/direct 2/rm32/edx . . . 1/r32/ecx . . # add ecx to edx
# size/ebx = 0
# var size/ebx : int = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
$parse-array-of-ints:loop1:
# if (curr >= end) break
@ -308,7 +310,7 @@ $parse-array-of-ints:loop1:
81 0/subop/add 3/mod/direct 3/rm32/ebx . . . . . 4/imm32 # add to ebx
eb/jump $parse-array-of-ints:loop1/disp8
$parse-array-of-ints:break1:
# result/edi = allocate(ad, size+4)
# var result/edi : (handle array int) = allocate(ad, size+4)
# . eax = allocate(ad, size+4)
# . . push args
89/copy 3/mod/direct 0/rm32/eax . . . 3/r32/ebx . . # copy ebx to eax
@ -324,7 +326,7 @@ $parse-array-of-ints:break1:
# result->size = size
89/copy 0/mod/indirect 0/rm32/eax . . . 3/r32/ebx . . # copy ebx to *eax
$parse-array-of-ints:pass2:
# var slice/ecx = {s->data, 0}
# var slice/ecx : (ref slice) = {s->data, 0}
# . push 0
68/push 0/imm32/end
# . push s->data
@ -332,7 +334,7 @@ $parse-array-of-ints:pass2:
51/push-ecx
# . bookmark
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# out/ebx = result->data
# var out/ebx : (address byte) = result->data
8d/copy-address 1/mod/*+disp8 0/rm32/eax . . . 3/r32/ebx 4/disp8 . # copy eax+4 to ebx
$parse-array-of-ints:loop2:
# if (slice->start >= end) break
@ -373,7 +375,7 @@ $parse-array-of-ints:loop2:
e8/call parse-hex-int/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# *out = eax
# . *out = eax
89/copy 0/mod/indirect 3/rm32/ebx . . . 0/r32/eax . . # copy eax to *ebx
# out += 4
81 0/subop/add 3/mod/direct 3/rm32/ebx . . . . . 4/imm32 # add to ebx
@ -402,7 +404,7 @@ test-parse-array-of-ints:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var ecx = [1, 2, 3]
# var ecx : (ref array int) = [1, 2, 3]
68/push 3/imm32
68/push 2/imm32
68/push 1/imm32
@ -496,7 +498,7 @@ test-parse-array-of-ints-extra-whitespace:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var ecx = [1, 2, 3]
# var ecx : (ref array int) = [1, 2, 3]
68/push 3/imm32
68/push 2/imm32
68/push 1/imm32
@ -540,7 +542,7 @@ check-array-equal: # a : (address array int), expected : (address string), msg
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
50/push-eax
# var b/ecx = parse-array-of-ints(Heap, expected)
# var b/ecx : (handle array int) = parse-array-of-ints(Heap, expected)
# . eax = parse-array-of-ints(Heap, expected)
# . . push args
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0xc/disp8 . # push *(ebp+12)
@ -580,7 +582,7 @@ test-check-array-equal:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var ecx = [1, 2, 3]
# var ecx : (ref array int) = [1, 2, 3]
68/push 3/imm32
68/push 2/imm32
68/push 1/imm32

12
094next-word-or-string.subx
View File

@ -33,7 +33,7 @@ $next-word-or-string:check0:
# . if (eax < line->write) goto next check
3b/compare 0/mod/indirect 6/rm32/esi . . . 0/r32/eax . . # compare eax with *esi
7c/jump-if-lesser $next-word-or-string:check-for-comment/disp8
# . return out = {0, 0}
# . return out
c7 0/subop/copy 0/mod/direct 7/rm32/edi . . . . . 0/imm32 # copy to *edi
c7 0/subop/copy 1/mod/*+disp8 7/rm32/edi . . . . 4/disp8 0/imm32 # copy to *(edi+4)
eb/jump $next-word-or-string:end/disp8
@ -111,7 +111,7 @@ test-next-word-or-string:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -184,7 +184,7 @@ test-next-word-or-string-returns-whole-comment:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -257,7 +257,7 @@ test-next-word-or-string-returns-empty-slice-on-eof:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -299,7 +299,7 @@ test-next-word-or-string-returns-string-literal:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -362,7 +362,7 @@ test-next-word-or-string-returns-string-with-escapes:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx

12
095stack.subx
View File

@ -16,20 +16,20 @@ clear-stack: # s : (address stack)
51/push-ecx
# eax = s
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax
# ecx = &s->data[s->length]
# var max/ecx : (address byte) = &s->data[s->length]
8b/copy 1/mod/*+disp8 0/rm32/eax . . . 1/r32/ecx 4/disp8 . # copy *(eax+4) to eax
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 8/disp8 . # copy eax+ecx+8 to ecx
# s->top = 0
c7 0/subop/copy 0/mod/direct 0/rm32/eax . . . . . 0/imm32 # copy to *eax
# eax = s->data
# var curr/eax : (address byte) = s->data
81 0/subop/add 3/mod/direct 0/rm32/eax . . . . . 8/imm32 # add to eax
$clear-stack:loop:
# if (eax >= ecx) break
# if (curr >= max) break
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
73/jump-if-greater-or-equal-unsigned $clear-stack:end/disp8
# *eax = 0
# *curr = 0
c6 0/subop/copy 0/mod/direct 0/rm32/eax . . . . . 0/imm8 # copy byte to *eax
# ++eax
# ++curr
40/increment-eax
eb/jump $clear-stack:loop/disp8
$clear-stack:end:
@ -343,7 +343,7 @@ top: # s : (address stack) -> n/eax : int
# if (s->top <= 0) abort
81 7/subop/compare 0/mod/indirect 6/rm32/esi . . . . . 0/imm32 # compare *esi
7e/jump-if-lesser-or-equal $top:abort/disp8
# eax = s->data[s->top - 4]
# n = s->data[s->top - 4]
8b/copy 0/mod/indirect 6/rm32/esi . . . 1/r32/ecx . . # copy *esi to ecx
81 5/subop/subtract 3/mod/direct 1/rm32/ecx . . . . . 4/imm32 # subtract from ecx
8b/copy 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/eax 8/disp8 . # copy *(esi+ecx+8) to eax

BIN
apps/assort
View File

Binary file not shown.

44
apps/assort.subx
View File

@ -50,8 +50,8 @@ Entry: # run tests if necessary, convert stdin if not
e8/call kernel-string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto interactive
3d/compare-eax-and 0/imm32
# . if (eax == false) goto interactive
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $subx-assort-main:interactive/disp8
# run-tests()
e8/call run-tests/disp32
@ -60,7 +60,7 @@ Entry: # run tests if necessary, convert stdin if not
eb/jump $subx-assort-main:end/disp8
$subx-assort-main:interactive:
# - otherwise convert stdin
# var ed/eax : exit-descriptor
# var ed/eax : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
# configure ed to really exit()
@ -97,7 +97,7 @@ subx-assort: # in : (address buffered-file), out : (address buffered-file)
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
51/push-ecx
# var table/ecx : (address stream byte 10*8)
# var table/ecx : (ref stream {string, (address stream byte)} 80) # 10 rows * 8 bytes/row
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x50/imm32 # subtract from esp
68/push 0x50/imm32/length
68/push 0/imm32/read
@ -450,8 +450,10 @@ test-subx-assort:
5d/pop-to-ebp
c3/return
# type string_key = (address array byte)
# beware: leaks memory (one name per segment read)
read-segments: # in : (address buffered-file), table : (address stream {string, (address stream byte)})
read-segments: # in : (address buffered-file), table : (address stream {string_key, (handle stream byte)})
# pseudocode:
# var curr-segment : (handle stream byte) = 0
# var line : (stream byte 512)
@ -494,13 +496,13 @@ read-segments: # in : (address buffered-file), table : (address stream {string,
52/push-edx
53/push-ebx
56/push-esi
# var line/ecx : (stream byte 512)
# var line/ecx : (ref stream byte 512)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x200/imm32 # subtract from esp
68/push 0x200/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var word-slice/edx = {0, 0}
# var word-slice/edx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -583,8 +585,8 @@ $read-segments:check1:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) continue
3d/compare-eax-and 0/imm32
# . if (eax != false) continue
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $read-segments:loop/disp32
$read-segments:check-for-comment:
#? # print("check for comment\n") {{{
@ -597,12 +599,12 @@ $read-segments:check-for-comment:
#? 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
#? # }}}
# if (slice-starts-with?(word-slice, "#")) continue
# . start/esi = word-slice->start
# . var start/esi : (address byte) = word-slice->start
8b/copy 0/mod/indirect 2/rm32/edx . . . 6/r32/esi . . # copy *ecx to esi
# . c/eax = *start
# . var c/eax : byte = *start
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 6/rm32/esi . . . 0/r32/AL . . # copy byte at *esi to AL
# . if (eax == '#') continue
# . if (c == '#') continue
3d/compare-eax-and 0x23/imm32/hash
0f 84/jump-if-equal $read-segments:loop/disp32
$read-segments:check-for-segment-header:
@ -664,8 +666,8 @@ $read-segments:check-for-segment-header:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto check3
3d/compare-eax-and 0/imm32
# . if (eax == false) goto check3
3d/compare-eax-and 0/imm32/false
0f 84/jump-if-equal $read-segments:regular-line/disp32
# segment-name = next-word-or-string(line)
# . . push args
@ -715,7 +717,7 @@ $read-segments:check-for-segment-header:
#? # . . discard args
#? 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
#? # }}}
# segment-slot/eax = leaky-get-or-insert-slice(table, segment-name, row-size=8)
# var segment-slot/eax : (address handle stream byte) = leaky-get-or-insert-slice(table, segment-name, row-size=8)
# . . push args
68/push 8/imm32/row-size
52/push-edx
@ -841,10 +843,10 @@ $read-segments:end:
5d/pop-to-ebp
c3/return
write-segments: # out : (address buffered-file), table : (address stream {string, (address stream byte)})
write-segments: # out : (address buffered-file), table : (address stream {string_key, (handle stream byte)})
# pseudocode:
# var curr = table->data
# var max = table->data + table->write
# var max = &table->data[table->write]
# while curr < max
# stream = table[i].stream
# write-stream-data(out, stream)
@ -860,17 +862,17 @@ write-segments: # out : (address buffered-file), table : (address stream {strin
56/push-esi
# esi = table
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 0xc/disp8 . # copy *(ebp+12) to esi
# write/edx = table->write
# var write/edx : int = table->write
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
# curr/esi = table->data
# var curr/esi : (address byte) = table->data
81 0/subop/add 3/mod/direct 6/rm32/esi . . . . . 0xc/imm32 # add to eax
# max/edx = curr + write
# var max/edx : (address byte) = curr + write
01/add 3/mod/direct 2/rm32/edx . . . 6/r32/esi . . # add esi to edx
$write-segments:loop:
# if (curr >= max) break
39/compare 3/mod/direct 6/rm32/esi . . . 2/r32/edx . . # compare esi with edx
73/jump-if-greater-or-equal-unsigned $write-segments:break/disp8
# stream/eax = table[i].stream
# var stream/eax : (address stream byte) = table[i].stream
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 0/r32/eax 4/disp8 . # copy *(esi+4) to eax
# write-stream-data(out, stream)
# . . push args

BIN
apps/braces
View File

Binary file not shown.

20
apps/braces.subx
View File

@ -77,8 +77,8 @@ $subx-braces-main:end:
subx-braces: # in : (address buffered-file), out : (address buffered-file)
# pseudocode:
# var line : (stream byte 512)
# var label-stack : (stack address 32) # at most 32 levels of nesting
# var line : (ref stream byte 512)
# var label-stack : (stack int 32) # at most 32 levels of nesting
# var next-label-id : int = 1
# while true
# clear-stream(line)
@ -123,20 +123,20 @@ subx-braces: # in : (address buffered-file), out : (address buffered-file)
57/push-edi
# esi = in
8b/-> *(ebp+8) 6/r32/esi
# var line/ecx : (stream byte 512)
# var line/ecx : (ref stream byte 512)
81 5/subop/subtract %esp 0x200/imm32
68/push 0x200/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/<- %ecx 4/r32/esp
# var label-stack/edx : (stack int 32)
# var label-stack/edx : (ref stack int 32)
81 5/subop/subtract %esp 0x80/imm32
68/push 0x80/imm32/length
68/push 0/imm32/top
89/<- %edx 4/r32/esp
# next-label-id/ebx = 1
# var next-label-id/ebx : int = 1
c7 0/subop/copy %ebx 1/imm32
# var word-slice/edi = {0, 0}
# var word-slice/edi : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/<- %edi 4/r32/esp
@ -201,8 +201,8 @@ $subx-braces:check-for-break:
# if (!slice-starts-with?(word-slice, "break/")) goto next check
# . eax = slice-starts-with?(word-slice, "break/")
(slice-starts-with? %edi "break/")
# . if (eax == 0) goto next check
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $subx-braces:check-for-loop/disp8
$subx-braces:emit-break:
(top %edx)
@ -217,8 +217,8 @@ $subx-braces:check-for-loop:
# if (!slice-starts-with?(word-slice, "loop/")) emit word
# . eax = slice-starts-with?(word-slice, "loop/")
(slice-starts-with? %edi "loop/")
# . if (eax == 0) goto next check
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $subx-braces:emit-word-slice/disp8
$subx-braces:emit-loop:
(top %edx)

BIN
apps/calls
View File

Binary file not shown.

56
apps/calls.subx
View File

@ -51,8 +51,8 @@ Entry: # run tests if necessary, convert stdin if not
e8/call kernel-string-equal?/disp32
# . . discard args
81 0/subop/add %esp 8/imm32
# . if (eax == 0) goto run-main
3d/compare-eax-and 0/imm32
# . if (eax == false) goto run-main
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $subx-calls-main:interactive/disp8
# run-tests()
e8/call run-tests/disp32
@ -77,8 +77,8 @@ $subx-calls-main:end:
subx-calls: # in : (address buffered-file), out : (address buffered-file)
# pseudocode:
# var line : (stream byte 512)
# var words : (stream slice 16) # at most function name and 15 args
# var line : (ref stream byte 512)
# var words : (ref stream slice 16) # at most function name and 15 args
# while true
# clear-stream(line)
# read-line-buffered(in, line)
@ -105,13 +105,13 @@ subx-calls: # in : (address buffered-file), out : (address buffered-file)
51/push-ecx
52/push-edx
56/push-esi
# var line/esi : (address stream byte) = stream(512)
# var line/esi : (ref stream byte 512)
81 5/subop/subtract %esp 0x200/imm32
68/push 0x200/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/<- %esi 4/r32/esp
# var words/edx : (address stream slice) = stream(16, 8)
# var words/edx : (ref stream slice 128) # 16 rows * 8 bytes/row
81 5/subop/subtract %esp 0x80/imm32
68/push 0x80/imm32/length
68/push 0/imm32/read
@ -233,7 +233,7 @@ $subx-calls:end:
parse-line: # line : (address stream byte), words : (address stream slice)
# pseudocode:
# var word-slice : (address slice)
# var word-slice : (ref slice)
# while true
# word-slice = next-word-string-or-expression-without-metadata(line)
# if slice-empty?(word-slice)
@ -246,7 +246,7 @@ parse-line: # line : (address stream byte), words : (address stream slice)
89/<- %ebp 4/r32/esp
# . save registers
51/push-ecx
# var word-slice/ecx : (address slice) = {0, 0}
# var word-slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/<- %ecx 4/r32/esp
@ -268,8 +268,8 @@ $parse-line:check1:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add %esp 4/imm32
# . if (eax != 0) break
3d/compare-eax-and 0/imm32
# . if (eax != false) break
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $parse-line:end/disp32
#? # dump word-slice {{{
#? # . write(2/stderr, "w: ")
@ -381,9 +381,9 @@ emit-call: # out : (address buffered-file), words : (address stream slice)
8b/-> *esi 1/r32/ecx
81 5/subop/subtract %ecx 8/imm32
0f 8c/jump-if-lesser $emit-call:error1/disp32
# curr/ecx = &words->data[words->write-8]
# var curr/ecx : (address slice) = &words->data[words->write-8]
8d/copy-address *(esi+ecx+0xc) 1/r32/ecx
# min/edx = words->data
# var min/edx : (address byte) = words->data
8d/copy-address *(esi+0xc) 2/r32/edx
# - emit pushes
$emit-call:push-loop:
@ -391,15 +391,15 @@ $emit-call:push-loop:
39/compare %ecx 2/r32/edx
0f 8e/jump-if-lesser-or-equal $emit-call:call-instruction/disp32
# if (*curr->start in '%' '*') goto push-rm32
# . eax = curr->start
# . var start/eax : (address byte) = curr->start
8b/-> *ecx 0/r32/eax
# . eax = (byte)*eax
# . var c/eax : byte = *eax
8b/-> *eax 0/r32/eax
81 4/subop/and %eax 0xff/imm32
# . if (eax == '%') goto push-rm32
# . if (c == '%') goto push-rm32
3d/compare-eax-and 0x25/imm32/percent
74/jump-if-equal $emit-call:push-rm32/disp8
# . if (eax == '*') goto push-rm32
# . if (c == '*') goto push-rm32
3d/compare-eax-and 0x2a/imm32/asterisk
74/jump-if-equal $emit-call:push-rm32/disp8
$emit-call:push-imm32:
@ -741,7 +741,7 @@ test-subx-calls-processes-calls:
5d/pop-to-ebp
c3/return
next-word-string-or-expression-without-metadata: # line : (address stream), out : (address slice)
next-word-string-or-expression-without-metadata: # line : (address stream byte), out : (address slice)
# pseudocode:
# skip-chars-matching(line, ' ')
# if line->read >= line->write # end of line
@ -830,7 +830,7 @@ $next-word-string-or-expression-without-metadata:check-for-comment:
8d/copy-address *(esi+ecx+0xc) 0/r32/eax
89/<- *edi 0/r32/eax
# if (line->data[line->read] != '#') goto next check
# . eax = line->data[line->read]
# . var eax : byte = line->data[line->read]
31/xor %eax 0/r32/eax
8a/copy-byte *(esi+ecx+0xc) 0/r32/AL
# . if (eax != '#') goto next check
@ -1191,7 +1191,7 @@ test-next-word-string-or-expression-without-metadata:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add %esp 4/imm32
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/<- %ecx 4/r32/esp
@ -1264,7 +1264,7 @@ test-next-word-string-or-expression-without-metadata-returns-whole-comment:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add %esp 4/imm32
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/<- %ecx 4/r32/esp
@ -1337,7 +1337,7 @@ test-next-word-string-or-expression-without-metadata-returns-empty-slice-on-eof:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add %esp 4/imm32
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/<- %ecx 4/r32/esp
@ -1379,7 +1379,7 @@ test-next-word-string-or-expression-without-metadata-returns-string-literal:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add %esp 4/imm32
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/<- %ecx 4/r32/esp
@ -1442,7 +1442,7 @@ test-next-word-string-or-expression-without-metadata-returns-string-with-escapes
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add %esp 4/imm32
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/<- %ecx 4/r32/esp
@ -1505,7 +1505,7 @@ test-next-word-string-or-expression-without-metadata-returns-whole-expression:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add %esp 4/imm32
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/<- %ecx 4/r32/esp
@ -1568,7 +1568,7 @@ test-next-word-string-or-expression-without-metadata-returns-eol-on-trailing-clo
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add %esp 4/imm32
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/<- %ecx 4/r32/esp
@ -1623,7 +1623,7 @@ test-next-word-string-or-expression-without-metadata-handles-comment-after-trail
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add %esp 4/imm32
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/<- %ecx 4/r32/esp
@ -1678,7 +1678,7 @@ test-next-word-string-or-expression-without-metadata-handles-newline-after-trail
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add %esp 4/imm32
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/<- %ecx 4/r32/esp
@ -1733,7 +1733,7 @@ test-next-word-string-or-expression-without-metadata-stops-at-close-paren:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add %esp 4/imm32
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/<- %ecx 4/r32/esp

BIN
apps/crenshaw2-1
View File

Binary file not shown.

32
apps/crenshaw2-1.subx
View File

@ -57,8 +57,8 @@ Entry: # run tests if necessary, call 'compile' if not
e8/call kernel-string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto run-main
3d/compare-eax-and 0/imm32
# . if (eax == false) goto run-main
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $run-main/disp8
# run-tests()
e8/call run-tests/disp32
@ -67,7 +67,7 @@ Entry: # run tests if necessary, call 'compile' if not
eb/jump $main:end/disp8
$run-main:
# - otherwise read a program from stdin and emit its translation to stdout
# var ed/eax : exit-descriptor
# var ed/eax : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
# configure ed to really exit()
@ -90,7 +90,7 @@ $main:end:
cd/syscall 0x80/imm8
# the main entry point
compile: # in : (address buffered-file), out : fd or (address stream), err : fd or (address stream), ed : (address exit-descriptor)
compile: # in : (address buffered-file), out : fd or (address stream byte), err : fd or (address stream byte), ed : (address exit-descriptor)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -105,7 +105,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
e8/call get-char/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var num/ecx : (address stream) on the stack
# var num/ecx : (ref stream byte 7)
# Numbers can be 32 bits or 8 hex bytes long. One of them will be in 'Look', so we need space for 7 bytes.
# Sizing the stream just right buys us overflow-handling for free inside 'get-num'.
# Add 12 bytes for 'read', 'write' and 'length' fields, for a total of 19 bytes, or 0x13 in hex.
@ -187,10 +187,11 @@ $compile:end:
5d/pop-to-ebp
c3/return
# Read a single digit into 'out'. Abort if there are none, or if there is no space in 'out'.
# Input comes from the global variable 'Look', and we leave the next byte from
# 'in' into it on exit.
get-num: # in : (address buffered-file), out : (address stream), err : fd or (address stream), ed : (address exit-descriptor)
# Read a single digit into 'out'. Abort if there are none, or if there is no
# space in 'out'.
# Input comes from the global variable 'Look' (first byte) and the argument
# 'in' (rest). We leave the next byte from 'in' into 'Look' on exit.
get-num: # in : (address buffered-file), out : (address stream byte), err : fd or (address stream byte), ed : (address exit-descriptor)
# pseudocode:
# if (!is-digit?(Look)) expected(ed, err, "integer")
# if out->write >= out->length
@ -221,8 +222,8 @@ get-num: # in : (address buffered-file), out : (address stream), err : fd or (a
e8/call is-digit?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax == 0)
3d/compare-eax-and 0/imm32
# . if (eax == false)
3d/compare-eax-and 0/imm32/false
75/jump-if-not-equal $get-num:main/disp8
# . expected(ed, err, "integer")
# . . push args
@ -251,6 +252,7 @@ $get-num:main:
8b/copy 0/mod/indirect 7/rm32/edi . . . 1/r32/ecx . . # copy *edi to ecx
# edx = out->length
8b/copy 1/mod/*+disp8 7/rm32/edi . . . 2/r32/edx 8/disp8 . # copy *(edi+8) to edx
$get-num:loop:
# if (out->write >= out->length) error
39/compare 3/mod/direct 2/rm32/edx . . . 1/r32/ecx . . # compare edx with ecx
7d/jump-if-lesser $get-num:stage2/disp8
@ -337,7 +339,7 @@ test-get-num-reads-single-digit:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'get-num' below
# . var ed/eax : exit-descriptor
# . var ed/eax : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
# . tailor-exit-descriptor(ed, 16)
@ -426,7 +428,7 @@ test-get-num-aborts-on-non-digit-in-Look:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'get-num' below
# . var ed/eax : (address exit-descriptor)
# . var ed/eax : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
# . tailor-exit-descriptor(ed, 16)
@ -468,7 +470,7 @@ test-get-num-aborts-on-non-digit-in-Look:
## helpers
# write(f, "Error: "+s+" expected\n") then stop(ed, 1)
expected: # ed : (address exit-descriptor), f : fd or (address stream), s : (address array byte)
expected: # ed : (address exit-descriptor), f : fd or (address stream byte), s : (address array byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -488,7 +490,7 @@ expected: # ed : (address exit-descriptor), f : fd or (address stream), s : (ad
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# write(f, " expected")
# write(f, " expected\n")
# . . push args
68/push " expected\n"/imm32
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0xc/disp8 . # push *(ebp+12)

BIN
apps/crenshaw2-1b
View File

Binary file not shown.

30
apps/crenshaw2-1b.subx
View File

@ -57,8 +57,8 @@ Entry: # run tests if necessary, call 'compile' if not
e8/call kernel-string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto run-main
3d/compare-eax-and 0/imm32
# . if (eax == false) goto run-main
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $run-main/disp8
# run-tests()
e8/call run-tests/disp32
@ -67,7 +67,7 @@ Entry: # run tests if necessary, call 'compile' if not
eb/jump $main:end/disp8
$run-main:
# - otherwise read a program from stdin and emit its translation to stdout
# var ed/eax : exit-descriptor
# var ed/eax : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
# configure ed to really exit()
@ -90,7 +90,7 @@ $main:end:
cd/syscall 0x80/imm8
# the main entry point
compile: # in : (address buffered-file), out : fd or (address stream), err : fd or (address stream), ed : (address exit-descriptor)
compile: # in : (address buffered-file), out : fd or (address stream byte), err : fd or (address stream byte), ed : (address exit-descriptor)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -105,7 +105,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
e8/call get-char/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var num/ecx : (address stream) on the stack
# var num/ecx : (ref stream byte 7)
# Numbers can be 32 bits or 8 hex bytes long. One of them will be in 'Look', so we need space for 7 bytes.
# Sizing the stream just right buys us overflow-handling for free inside 'get-num'.
# Add 12 bytes for 'read', 'write' and 'length' fields, for a total of 19 bytes, or 0x13 in hex.
@ -191,7 +191,7 @@ $compile:end:
# no space in 'out'.
# Input comes from the global variable 'Look' (first byte) and the argument
# 'in' (rest). We leave the next byte from 'in' into 'Look' on exit.
get-num: # in : (address buffered-file), out : (address stream), err : fd or (address stream), ed : (address exit-descriptor)
get-num: # in : (address buffered-file), out : (address stream byte), err : fd or (address stream byte), ed : (address exit-descriptor)
# pseudocode:
# if (!is-digit?(Look)) expected(ed, err, "integer")
# do
@ -227,8 +227,8 @@ get-num: # in : (address buffered-file), out : (address stream), err : fd or (a
e8/call is-digit?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax == 0)
3d/compare-eax-and 0/imm32
# . if (eax == false)
3d/compare-eax-and 0/imm32/false
75/jump-if-not-equal $get-num:main/disp8
# . expected(ed, err, "integer")
# . . push args
@ -292,8 +292,8 @@ $get-num:loop-stage2:
e8/call is-digit?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) loop
3d/compare-eax-and 0/imm32
# . if (eax != false) loop
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $get-num:loop/disp32
$get-num:loop-end:
# persist necessary variables from registers
@ -355,7 +355,7 @@ test-get-num-reads-single-digit:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'get-num' below
# . var ed/eax : exit-descriptor
# . var ed/eax : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
# . tailor-exit-descriptor(ed, 16)
@ -444,7 +444,7 @@ test-get-num-aborts-on-non-digit-in-Look:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'get-num' below
# . var ed/eax : (address exit-descriptor)
# . var ed/eax : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
# . tailor-exit-descriptor(ed, 16)
@ -527,7 +527,7 @@ test-get-num-reads-multiple-digits:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'get-num' below
# . var ed/eax : (address exit-descriptor)
# . var ed/eax : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
# . tailor-exit-descriptor(ed, 16)
@ -616,7 +616,7 @@ test-get-num-reads-multiple-digits-followed-by-nondigit:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'get-num' below
# . var ed/eax : (address exit-descriptor)
# . var ed/eax : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
# . tailor-exit-descriptor(ed, 16)
@ -664,7 +664,7 @@ test-get-num-reads-multiple-digits-followed-by-nondigit:
## helpers
# write(f, "Error: "+s+" expected\n") then stop(ed, 1)
expected: # ed : (address exit-descriptor), f : fd or (address stream), s : (address array byte)
expected: # ed : (address exit-descriptor), f : fd or (address stream byte), s : (address array byte)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp

BIN
apps/dquotes
View File

Binary file not shown.

74
apps/dquotes.subx
View File

@ -46,8 +46,8 @@ Entry: # run tests if necessary, convert stdin if not
e8/call kernel-string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto interactive
3d/compare-eax-and 0/imm32
# . if (eax == false) goto interactive
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $subx-dquotes-main:interactive/disp8
# run-tests()
e8/call run-tests/disp32
@ -56,7 +56,7 @@ Entry: # run tests if necessary, convert stdin if not
eb/jump $subx-dquotes-main:end/disp8
$subx-dquotes-main:interactive:
# - otherwise convert stdin
# var ed/eax : exit-descriptor
# var ed/eax : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
# configure ed to really exit()
@ -84,7 +84,7 @@ $subx-dquotes-main:end:
subx-dquotes: # in : (address buffered-file), out : (address buffered-file)
# pseudocode:
# var line : (stream byte 512)
# var line : (ref stream byte 512)
# var new-data-segment : (handle stream byte) = new-stream(Heap, Segment-size, 1)
#
# write(new-data-segment, "== data\n")
@ -125,13 +125,13 @@ subx-dquotes: # in : (address buffered-file), out : (address buffered-file)
53/push-ebx
56/push-esi
57/push-edi
# var line/ecx : (address stream byte) = stream(512)
# var line/ecx : (ref stream byte 512)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x200/imm32 # subtract from esp
68/push 0x200/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var word-slice/edx = {0, 0}
# var word-slice/edx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -193,17 +193,17 @@ $subx-dquotes:check1:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) break
3d/compare-eax-and 0/imm32
# . if (eax != false) break
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $subx-dquotes:next-line/disp32
$subx-dquotes:check-for-comment:
# if (slice-starts-with?(word-slice, "#")) continue
# . start/esi = word-slice->start
# . var start/esi : (address byte) = word-slice->start
8b/copy 0/mod/indirect 2/rm32/edx . . . 6/r32/esi . . # copy *edx to esi
# . c/eax = *start
# . var c/eax : byte = *start
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 6/rm32/esi . . . 0/r32/AL . . # copy byte at *esi to AL
# . if (eax == '#') continue
# . if (c == '#') continue
3d/compare-eax-and 0x23/imm32/hash
74/jump-if-equal $subx-dquotes:word-loop/disp8
$subx-dquotes:check-for-string-literal:
@ -287,7 +287,7 @@ $subx-dquotes:end:
# Write out 'string-literal' in a new format to 'out-segment', assign it a new
# label, and write the new label out to 'out'.
process-string-literal: # string-literal : (address slice), out : (address buffered-file), out-segment : (address stream)
process-string-literal: # string-literal : (address slice), out : (address buffered-file), out-segment : (address stream byte)
# pseudocode:
# print(out-segment, "_string#{Next-string-literal}:\n")
# emit-string-literal-data(out-segment, string-literal)
@ -300,7 +300,7 @@ process-string-literal: # string-literal : (address slice), out : (address buff
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
51/push-ecx
# var int32-stream/ecx = stream(10) # number of decimal digits a 32-bit number can have
# var int32-stream/ecx : (ref stream byte 10) # number of decimal digits a 32-bit number can have
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0xa/imm32 # subtract from esp
68/push 0xa/imm32/decimal-digits-in-32bit-number
68/push 0/imm32/read
@ -846,7 +846,7 @@ test-subx-dquotes-processes-string-literals:
c3/return
# generate the data segment contents byte by byte for a given slice
emit-string-literal-data: # out : (address stream), word : (address slice)
emit-string-literal-data: # out : (address stream byte), word : (address slice)
# pseudocode
# len = string-length-at-start-of-slice(word->start, word->end)
# print(out, "#{len}/imm32 ")
@ -885,14 +885,14 @@ emit-string-literal-data: # out : (address stream), word : (address slice)
56/push-esi
# esi = word
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 0xc/disp8 . # copy *(ebp+12) to esi
# idx/ebx = 0
# var idx/ebx : int = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
# curr/edx = word->start
# var curr/edx : (address byte) = word->start
8b/copy 0/mod/indirect 6/rm32/esi . . . 2/r32/edx . . # copy *esi to edx
# max/esi = word->end
# var max/esi : (address byte) = word->end
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 6/r32/esi 4/disp8 . # copy *(esi+4) to esi
$emit-string-literal-data:emit-length:
# len/eax = string-length-at-start-of-slice(word->start, word->end)
# var len/eax : int = string-length-at-start-of-slice(word->start, word->end)
# . . push args
56/push-esi
52/push-edx
@ -920,7 +920,7 @@ $emit-string-literal-data:emit-length:
$emit-string-literal-data:loop-init:
# ++curr # skip initial '"'
42/increment-edx
# c/ecx = 0
# var c/ecx : byte = 0
31/xor 3/mod/direct 1/rm32/ecx . . . 1/r32/ecx . . # clear ecx
$emit-string-literal-data:loop:
# if (curr >= max) break
@ -955,15 +955,15 @@ $emit-string-literal-data:emit:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# if (is-alphanumeric?(*curr)) print(out, "/#{*curr}")
# . eax = is-alphanumeric?(CL)
# . var eax : boolean = is-alphanumeric?(CL)
# . . push args
51/push-ecx
# . . call
e8/call is-alphanumeric?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax == 0) goto char-done
3d/compare-eax-and 0/imm32
# . if (eax == false) goto char-done
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $emit-string-literal-data:char-done/disp8
# . write(out, "/")
# . . push args
@ -1027,22 +1027,22 @@ is-alphanumeric?: # c : int -> eax : boolean
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# eax = c
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax
# if (eax < '0') return false
# if (c < '0') return false
3d/compare-eax-with 0x30/imm32/0
7c/jump-if-lesser $is-alphanumeric?:false/disp8
# if (eax <= '9') return true
# if (c <= '9') return true
3d/compare-eax-with 0x39/imm32/9
7e/jump-if-lesser-or-equal $is-alphanumeric?:true/disp8
# if (eax < 'A') return false
# if (c < 'A') return false
3d/compare-eax-with 0x41/imm32/A
7c/jump-if-lesser $is-alphanumeric?:false/disp8
# if (eax <= 'Z') return true
# if (c <= 'Z') return true
3d/compare-eax-with 0x5a/imm32/Z
7e/jump-if-lesser-or-equal $is-alphanumeric?:true/disp8
# if (eax < 'a') return false
# if (c < 'a') return false
3d/compare-eax-with 0x61/imm32/a
7c/jump-if-lesser $is-alphanumeric?:false/disp8
# if (eax <= 'z') return true
# if (c <= 'z') return true
3d/compare-eax-with 0x7a/imm32/z
7e/jump-if-lesser-or-equal $is-alphanumeric?:true/disp8
# return false
@ -1381,7 +1381,7 @@ test-emit-string-literal-data-handles-newline-escape:
# emit everything from a word except the initial datum
emit-metadata: # out : (address buffered-file), word : (address slice)
# pseudocode
# var slice = {0, word->end}
# var slice : (ref slice) = {0, word->end}
# curr = word->start
# if *curr == '"'
# curr = skip-string-in-slice(curr, word->end)
@ -1406,11 +1406,11 @@ emit-metadata: # out : (address buffered-file), word : (address slice)
56/push-esi
# esi = word
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 0xc/disp8 . # copy *(ebp+12) to esi
# curr/ecx = word->start
# var curr/ecx : (address byte) = word->start
8b/copy 0/mod/indirect 6/rm32/esi . . . 1/r32/ecx . . # copy *esi to ecx
# end/edx = word->end
# var end/edx : (address byte) = word->end
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 2/r32/edx 4/disp8 . # copy *(esi+4) to edx
# var slice/ebx = {0, end}
# var slice/ebx : (ref slice) = {0, end}
52/push-edx
68/push 0/imm32
89/copy 3/mod/direct 3/rm32/ebx . . . 4/r32/esp . . # copy esp to ebx
@ -1790,9 +1790,9 @@ string-length-at-start-of-slice: # curr : (address byte), end : (address byte)
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
# edx = end
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
# length/eax = 0
# var length/eax : int = 0
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
# ebx = 0
# var c/ebx : byte = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
# skip initial dquote
41/increment-ecx
@ -1800,14 +1800,14 @@ $string-length-at-start-of-slice:loop:
# if (curr >= end) return length
39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx
73/jump-if-greater-unsigned-or-equal $string-length-at-start-of-slice:end/disp8
# BL = *curr
# c = *curr
8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 3/r32/BL . . # copy byte at *ecx to BL
$string-length-at-start-of-slice:dquote:
# if (ebx == '"') break
# if (c == '"') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x22/imm32/dquote # compare ebx
74/jump-if-equal $string-length-at-start-of-slice:end/disp8
$string-length-at-start-of-slice:check-for-escape:
# if (ebx == '\') escape next char
# if (c == '\') escape next char
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x5c/imm32/backslash # compare ebx
75/jump-if-not-equal $string-length-at-start-of-slice:continue/disp8
$string-length-at-start-of-slice:escape:

BIN
apps/factorial
View File

Binary file not shown.

8
apps/factorial.subx
View File

@ -45,8 +45,8 @@ Entry: # run tests if necessary, compute `factorial(5)` if not
e8/call kernel-string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto run-main
3d/compare-eax-and 0/imm32
# . if (eax == false) goto run-main
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $run-main/disp8
# run-tests()
e8/call run-tests/disp32
@ -77,10 +77,10 @@ factorial: # n : int -> int/eax
b8/copy-to-eax 1/imm32
81 7/subop/compare 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 1/imm32 # compare *(ebp+8)
7e/jump-if-<= $factorial:end/disp8
# ebx = n-1
# var ebx : int = n-1
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 3/r32/ebx 8/disp8 . # copy *(ebp+8) to ebx
4b/decrement-ebx
# eax = factorial(n-1)
# var eax : int = factorial(n-1)
# . . push args
53/push-ebx
# . . call

BIN
apps/handle
View File

Binary file not shown.

22
apps/handle.subx
View File

@ -44,7 +44,7 @@ $handle-main:end:
b8/copy-to-eax 1/imm32/exit
cd/syscall 0x80/imm8
new: # ad : (address allocation-descriptor), n : int, out : (address handle)
new: # ad : (address allocation-descriptor), n : int, out : (handle _)
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -55,7 +55,7 @@ new: # ad : (address allocation-descriptor), n : int, out : (address handle)
# ecx = n+4
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
81 0/subop/add 3/mod/direct 1/rm32/ecx . . . . . 4/imm32 # add to ecx
# eax = allocate(ad, ecx)
# var eax : (handle _) = allocate(ad, ecx)
# . . push args
51/push-ecx
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8)
@ -96,7 +96,7 @@ test-new:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var heap/edx : (address allocation-descriptor) = {0, 0}
# var heap/edx : (ref allocation-descriptor)
68/push 0/imm32/limit
68/push 0/imm32/curr
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -110,7 +110,7 @@ test-new:
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# *Next-alloc-id = 0x34
c7 0/subop/copy 0/mod/indirect 5/rm32/.disp32 . . . Next-alloc-id/disp32 0x34/imm32 # copy to *Next-alloc-id
# var handle/ecx = {0, 0}
# var handle/ecx : (ref handle)
68/push 0/imm32/address
68/push 0/imm32/alloc-id
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -166,7 +166,7 @@ _pending-test-new-failure:
# . *Next-alloc-id = 0x34
c7 0/subop/copy 0/mod/indirect 5/rm32/.disp32 . . . Next-alloc-id/disp32 0x34/imm32 # copy to *Next-alloc-id
# define an allocation-descriptor with no space left
# . var ad/eax : (address allocation-descriptor) = {0x10, 0x10}
# . var ad/eax : (ref allocation-descriptor) = {0x10, 0x10}
68/push 0x10/imm32/limit
68/push 0x10/imm32/curr
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
@ -282,7 +282,7 @@ test-lookup-success:
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
# var heap/ebx : (address allocation-descriptor) = {0, 0}
# var heap/ebx : (ref allocation-descriptor)
68/push 0/imm32/limit
68/push 0/imm32/curr
89/copy 3/mod/direct 3/rm32/ebx . . . 4/r32/esp . . # copy esp to ebx
@ -294,7 +294,7 @@ test-lookup-success:
e8/call new-segment/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# var handle/ecx = {0, 0}
# var handle/ecx : (ref handle)
68/push 0/imm32/address
68/push 0/imm32/alloc-id
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -350,7 +350,7 @@ test-lookup-failure:
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var heap/esi : (address allocation-descriptor) = {0, 0}
# var heap/esi : (ref allocation-descriptor)
68/push 0/imm32/limit
68/push 0/imm32/curr
89/copy 3/mod/direct 6/rm32/esi . . . 4/r32/esp . . # copy esp to esi
@ -362,7 +362,7 @@ test-lookup-failure:
e8/call new-segment/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# var h1/ecx = {0, 0}
# var h1/ecx : (ref handle)
68/push 0/imm32/address
68/push 0/imm32/alloc-id
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -381,7 +381,7 @@ test-lookup-failure:
# reset heap->curr to mimic reclamation
89/copy 0/mod/indirect 6/rm32/esi . . . 3/r32/ebx . . # copy ebx to *esi
# second allocation that returns the same address as the first
# var h2/edx = {0, 0}
# var h2/edx : (ref handle)
68/push 0/imm32/address
68/push 0/imm32/alloc-id
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -422,7 +422,7 @@ test-lookup-failure:
== data
# Monotonically increasing counter for calls to 'new'
Next-alloc-id:
Next-alloc-id: # int
1/imm32
# . . vim:nowrap:textwidth=0

BIN
apps/hex
View File

Binary file not shown.

28
apps/hex.subx
View File

@ -44,8 +44,8 @@ Entry: # run tests if necessary, convert stdin if not
e8/call kernel-string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto interactive
3d/compare-eax-and 0/imm32
# . if (eax == false) goto interactive
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $subx-hex-main:interactive/disp8
# run-tests()
e8/call run-tests/disp32
@ -54,7 +54,7 @@ Entry: # run tests if necessary, convert stdin if not
eb/jump $subx-hex-main:end/disp8
$subx-hex-main:interactive:
# - otherwise convert stdin
# var ed/eax : exit-descriptor
# var ed/eax : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
# configure ed to really exit()
@ -247,7 +247,7 @@ test-convert-next-octet:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'convert-next-octet' below
# . var ed/ecx : exit-descriptor
# . var ed/ecx : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . tailor-exit-descriptor(ed, 12)
@ -337,7 +337,7 @@ test-convert-next-octet-handles-Eof:
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# don't initialize '_test-stream'
# initialize exit-descriptor 'ed' for the call to 'convert-next-octet' below
# . var ed/ecx : exit-descriptor
# . var ed/ecx : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . tailor-exit-descriptor(ed, 12)
@ -435,7 +435,7 @@ test-convert-next-octet-aborts-on-single-hex-byte:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'convert-next-octet' below
# . var ed/ecx : exit-descriptor
# . var ed/ecx : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . tailor-exit-descriptor(ed, 12)
@ -604,7 +604,7 @@ test-scan-next-byte:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below
# . var ed/ecx : exit-descriptor
# . var ed/ecx : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . tailor-exit-descriptor(ed, 12)
@ -702,7 +702,7 @@ test-scan-next-byte-skips-whitespace:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below
# . var ed/ecx : exit-descriptor
# . var ed/ecx : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . tailor-exit-descriptor(ed, 12)
@ -808,7 +808,7 @@ test-scan-next-byte-skips-comment:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below
# . var ed/ecx : exit-descriptor
# . var ed/ecx : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . tailor-exit-descriptor(ed, 12)
@ -914,7 +914,7 @@ test-scan-next-byte-skips-comment-and-whitespace:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below
# . var ed/ecx : exit-descriptor
# . var ed/ecx : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . tailor-exit-descriptor(ed, 12)
@ -1022,7 +1022,7 @@ test-scan-next-byte-skips-whitespace-and-comment:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below
# . var ed/ecx : exit-descriptor
# . var ed/ecx : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . tailor-exit-descriptor(ed, 12)
@ -1120,7 +1120,7 @@ test-scan-next-byte-reads-final-byte:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below
# . var ed/ecx : exit-descriptor
# . var ed/ecx : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . tailor-exit-descriptor(ed, 12)
@ -1210,7 +1210,7 @@ test-scan-next-byte-handles-Eof:
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# leave '_test-stream' empty
# initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below
# . var ed/ecx : exit-descriptor
# . var ed/ecx : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . tailor-exit-descriptor(ed, 12)
@ -1308,7 +1308,7 @@ test-scan-next-byte-aborts-on-invalid-byte:
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below
# . var ed/ecx : exit-descriptor
# . var ed/ecx : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . tailor-exit-descriptor(ed, 12)

BIN
apps/mu
View File

Binary file not shown.

451
apps/mu.subx
View File

File diff suppressed because it is too large Load Diff

18
apps/mulisp.subx
View File

@ -81,12 +81,12 @@ repl: # in : (address buffered-file), out : (address buffered-file)
# . save registers
50/push-eax
{
(lisp-read Stdin) # => eax : (address cell)
(lisp-read Stdin) # => eax : (handle cell)
# if (eax == 0) break
3d/compare-eax-and 0/imm32
74/jump-if-equal break/disp8
#
(lisp-eval %eax) # => eax : (address cell)
(lisp-eval %eax) # => eax : (handle cell)
(lisp-print Stdout %eax)
eb/jump loop/disp8
}
@ -104,13 +104,13 @@ $repl:end:
# arrays start with '['
# symbols start with anything else but quote, backquote, unquote or splice
# only one s-expression per line
lisp-read: # in : (address buffered-file) -> eax : (address cell)
lisp-read: # in : (address buffered-file) -> eax : (handle cell)
# . prologue
55/push-ebp
89/<- %ebp 4/r32/esp
# . save registers
51/push-ecx
# var s/ecx : (stream byte 512)
# var s/ecx : (ref stream byte 512)
81 5/subop/subtract %esp 0x200/imm32
68/push 0x200/imm32/size
68/push 0/imm32/read
@ -142,14 +142,14 @@ $lisp-read:end:
5d/pop-to-ebp
c3/return
# lisp-read: in : (address buffered-file) -> (address cell)
# lisp-read: in : (address buffered-file) -> (handle cell)
# token tmp = next-mulisp-token(in)
# if is-int(tmp) return cell(tmp)
# if is-string(tmp) return cell(tmp)
# if is-pair(tmp) ...
# if is-array(tmp) ...
next-mulisp-token: # in : (address buffered-file), line : (address stream), result : (address slice)
next-mulisp-token: # in : (address buffered-file), line : (address stream byte), result : (address slice)
# pseudocode:
# if (line->read >= line->write)
# read-line-buffered(in, line)
@ -194,11 +194,11 @@ $next-mulisp-token:end:
5d/pop-to-ebp
c3/return
new-int-cell: # in : (address slice) -> eax : (address cell)
new-int-cell: # in : (address slice) -> eax : (handle cell)
new-string-cell: # in : (address slice) -> eax : (address cell)
new-string-cell: # in : (address slice) -> eax : (handle cell)
lisp-eval: # in : (address cell) -> eax : (address cell)
lisp-eval: # in : (address cell) -> eax : (handle cell)
# . prologue
55/push-ebp
89/<- %ebp 4/r32/esp

BIN
apps/pack
View File

Binary file not shown.

260
apps/pack.subx
View File

@ -45,8 +45,8 @@ Entry: # run tests if necessary, convert stdin if not
e8/call kernel-string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto interactive
3d/compare-eax-and 0/imm32
# . if (eax == false) goto interactive
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $subx-pack-main:interactive/disp8
# run-tests()
e8/call run-tests/disp32
@ -55,7 +55,7 @@ Entry: # run tests if necessary, convert stdin if not
eb/jump $subx-pack-main:end/disp8
$subx-pack-main:interactive:
# - otherwise convert stdin
# var ed/eax : exit-descriptor
# var ed/eax : (ref exit-descriptor)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # subtract from esp
89/copy 3/mod/direct 0/rm32/eax . . . 4/r32/esp . . # copy esp to eax
# configure ed to really exit()
@ -99,7 +99,7 @@ $subx-pack-main:end:
subx-pack: # in : (address buffered-file), out : (address buffered-file)
# pseudocode:
# var line : (stream byte 512)
# var line : (ref stream byte 512)
# var in-code? = false
# while true
# clear-stream(line)
@ -128,17 +128,17 @@ subx-pack: # in : (address buffered-file), out : (address buffered-file)
51/push-ecx
52/push-edx
53/push-ebx
# var line/ecx : (address stream byte) = stream(512)
# var line/ecx : (ref stream byte 512)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x200/imm32 # subtract from esp
68/push 0x200/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var word-slice/edx = {0, 0}
# var word-slice/edx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
# var in-code?/ebx = false
# var in-code?/ebx : boolean = false
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
$subx-pack:loop:
# clear-stream(line)
@ -203,8 +203,8 @@ $subx-pack:check1:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) write-stream-data(out, line)
3d/compare-eax-and 0/imm32
# . if (eax != false) write-stream-data(out, line)
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $subx-pack:pass-through/disp32
$subx-pack:check2:
#? # dump word-slice {{{
@ -256,8 +256,8 @@ $subx-pack:check2:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto check3
3d/compare-eax-and 0/imm32
# . if (eax == false) goto check3
3d/compare-eax-and 0/imm32/false
0f 84/jump-if-equal $subx-pack:check3/disp32
# word-slice = next-word(line)
# . . push args
@ -328,8 +328,8 @@ $subx-pack:check3:
e8/call rewind-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# if (in-code? != 0) convert-instruction(line, out)
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0/imm32 # compare ebx
# if (in-code? != false) convert-instruction(line, out)
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0/imm32/false # compare ebx
74/jump-if-equal $subx-pack:data/disp8
$subx-pack:code:
# . convert-instruction(line, out)
@ -911,7 +911,7 @@ test-subx-pack-code-and-data-segments:
convert-data: # line : (address stream byte), out : (address buffered-file)
# pseudocode:
# var word-slice = {0, 0}
# var word-slice : (ref slice)
# while true
# word-slice = next-word(line)
# if slice-empty?(word-slice) # end of file (maybe including trailing whitespace)
@ -936,7 +936,7 @@ convert-data: # line : (address stream byte), out : (address buffered-file)
50/push-eax
51/push-ecx
52/push-edx
# var word-slice/ecx = {0, 0}
# var word-slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -1024,17 +1024,17 @@ $convert-data:check0:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) break
3d/compare-eax-and 0/imm32
# . if (eax != false) break
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $convert-data:break/disp32
$convert-data:check-for-comment:
# if (slice-starts-with?(word-slice, "#"))
# . start/edx = word-slice->start
# . var start/edx : (address byte) = word-slice->start
8b/copy 0/mod/indirect 1/rm32/ecx . . . 2/r32/edx . . # copy *ecx to edx
# . c/eax = *start
# . var c/eax : byte = *start
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 2/rm32/edx . . . 0/r32/AL . . # copy byte at *edx to AL
# . if (eax != '#') goto next check
# . if (c != '#') goto next check
3d/compare-eax-and 0x23/imm32/hash
75/jump-if-not-equal $convert-data:check-for-label/disp8
$convert-data:comment:
@ -1050,12 +1050,12 @@ $convert-data:comment:
0f 85/jump-if-not-equal $convert-data:end/disp32
$convert-data:check-for-label:
# if (slice-ends-with?(word-slice, ":"))
# . end/edx = word-slice->end
# . var end/edx : (address byte) = word-slice->end
8b/copy 1/mod/*+disp8 1/rm32/ecx . . . 2/r32/edx 4/disp8 . # copy *(ecx+4) to edx
# . c/eax = *(end-1)
# . var c/eax : byte = *(end-1)
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 1/mod/*+disp8 2/rm32/edx . . . 0/r32/AL -1/disp8 . # copy byte at *ecx to AL
# . if (eax != ':') goto next check
# . if (c != ':') goto next check
3d/compare-eax-and 0x3a/imm32/colon
75/jump-if-not-equal $convert-data:check-for-imm32/disp8
$convert-data:label:
@ -1079,8 +1079,8 @@ $convert-data:check-for-imm32:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) process as a single byte
3d/compare-eax-and 0/imm32
# . if (eax == false) process as a single byte
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $convert-data:single-byte/disp8
$convert-data:imm32:
# emit(out, word-slice, 4)
@ -1837,7 +1837,7 @@ convert-instruction: # line : (address stream byte), out : (address buffered-fi
50/push-eax
51/push-ecx
52/push-edx
# var word-slice/ecx = {0, 0}
# var word-slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -1858,27 +1858,27 @@ $convert-instruction:check0:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) pass through
3d/compare-eax-and 0/imm32
# . if (eax != false) pass through
3d/compare-eax-and 0/imm32/false
75/jump-if-not-equal $convert-instruction:pass-through/disp8
$convert-instruction:check1:
# if (slice-starts-with?(word-slice, "#")) write-stream-data(out, line)
# . start/edx = word-slice->start
# . var start/edx : (address byte) = word-slice->start
8b/copy 0/mod/indirect 1/rm32/ecx . . . 2/r32/edx . . # copy *ecx to edx
# . c/eax = *start
# . var c/eax : byte = *start
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 2/rm32/edx . . . 0/r32/AL . . # copy byte at *edx to AL
# . if (eax == '#') pass through
# . if (c == '#') pass through
3d/compare-eax-and 0x23/imm32/hash
74/jump-if-equal $convert-instruction:pass-through/disp8
$convert-instruction:check2:
# if (slice-ends-with?(word-slice, ":")) write-stream-data(out, line)
# . end/edx = word-slice->end
# . var end/edx : (address byte) = word-slice->end
8b/copy 1/mod/*+disp8 1/rm32/ecx . . . 2/r32/edx 4/disp8 . # copy *(ecx+4) to edx
# . c/eax = *(end-1)
# . var c/eax : byte = *(end-1)
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 1/mod/*+disp8 2/rm32/edx . . . 0/r32/AL -1/disp8 . # copy byte at *ecx to AL
# . if (eax == ':') pass through
# . if (c == ':') pass through
3d/compare-eax-and 0x3a/imm32/colon
75/jump-if-not-equal $convert-instruction:really-convert/disp8
$convert-instruction:pass-through:
@ -1994,11 +1994,11 @@ emit-opcodes: # line : (address stream byte), out : (address buffered-file)
51/push-ecx
52/push-edx
53/push-ebx
# var op1/ecx = {0, 0}
# var op1/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var op2/edx = {0, 0}
# var op2/edx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -2026,16 +2026,16 @@ $emit-opcodes:op1:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) return
3d/compare-eax-and 0/imm32
# . if (eax != false) return
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-opcodes:end/disp32
# if (slice-starts-with?(op1, "#")) return
# . start/ebx = op1->start
# . var start/ebx : (address byte) = op1->start
8b/copy 0/mod/indirect 1/rm32/ecx . . . 3/r32/ebx . . # copy *ecx to ebx
# . c/eax = *start
# . var c/eax : byte = *start
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 3/rm32/ebx . . . 0/r32/AL . . # copy byte at *ebx to AL
# . if (eax == '#') return
# . if (c == '#') return
3d/compare-eax-and 0x23/imm32/hash
0f 84/jump-if-equal $emit-opcodes:end/disp32
# op1 = next-token-from-slice(op1->start, op1->end, '/')
@ -2073,8 +2073,8 @@ $emit-opcodes:op1:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) goto op2
3d/compare-eax-and 0/imm32
# . if (eax != false) goto op2
3d/compare-eax-and 0/imm32/false
75/jump-if-not-equal $emit-opcodes:op2/disp8
# if (slice-equal?(op1, "f2")) goto op2
# . eax = slice-equal?(op1, "f2")
@ -2085,8 +2085,8 @@ $emit-opcodes:op1:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) goto op2
3d/compare-eax-and 0/imm32
# . if (eax != false) goto op2
3d/compare-eax-and 0/imm32/false
75/jump-if-not-equal $emit-opcodes:op2/disp8
# if (slice-equal?(op1, "f3")) goto op2
# . eax = slice-equal?(op1, "f3")
@ -2097,8 +2097,8 @@ $emit-opcodes:op1:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) goto op2
3d/compare-eax-and 0/imm32
# . if (eax != false) goto op2
3d/compare-eax-and 0/imm32/false
75/jump-if-not-equal $emit-opcodes:op2/disp8
# otherwise return
e9/jump $emit-opcodes:end/disp32
@ -2119,16 +2119,16 @@ $emit-opcodes:op2:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) return
3d/compare-eax-and 0/imm32
# . if (eax != false) return
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-opcodes:end/disp32
# if (slice-starts-with?(op2, "#")) return
# . start/ebx = op2->start
# . var start/ebx : (address byte) = op2->start
8b/copy 0/mod/indirect 2/rm32/edx . . . 3/r32/ebx . . # copy *edx to ebx
# . c/eax = *start
# . var c/eax : byte = *start
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 3/rm32/ebx . . . 0/r32/AL . . # copy byte at *ebx to AL
# . if (eax == '#') return
# . if (c == '#') return
3d/compare-eax-and 0x23/imm32/hash
0f 84/jump-if-equal $emit-opcodes:end/disp32
# op2 = next-token-from-slice(op2->start, op2->end, '/')
@ -2166,8 +2166,8 @@ $emit-opcodes:op2:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) return
3d/compare-eax-and 0/imm32
# . if (eax != false) return
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-opcodes:end/disp32
# if (!slice-equal?(op2, "0f")) return
# . eax = slice-equal?(op2, "0f")
@ -2178,8 +2178,8 @@ $emit-opcodes:op2:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) return
3d/compare-eax-and 0/imm32
# . if (eax == false) return
3d/compare-eax-and 0/imm32/false
0f 84/jump-if-equal $emit-opcodes:end/disp32
$emit-opcodes:op3:
# next-word(line, op3) # reuse op2/edx
@ -2198,16 +2198,16 @@ $emit-opcodes:op3:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) return
3d/compare-eax-and 0/imm32
# . if (eax != false) return
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-opcodes:end/disp32
# if (slice-starts-with?(op3, "#")) return
# . start/ebx = op2->start
# . var start/ebx : (address byte) = op2->start
8b/copy 0/mod/indirect 2/rm32/edx . . . 3/r32/ebx . . # copy *edx to ebx
# . c/eax = *start
# . var c/eax : byte = *start
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 3/rm32/ebx . . . 0/r32/AL . . # copy byte at *ebx to AL
# . if (eax == '#') return
# . if (c == '#') return
3d/compare-eax-and 0x23/imm32/hash
0f 84/jump-if-equal $emit-opcodes:end/disp32
# op3 = next-token-from-slice(op3->start, op3->end, '/')
@ -2253,7 +2253,7 @@ emit-modrm: # line : (address stream byte), out : (address buffered-file)
# pseudocode:
# rewind-stream(line)
# var has-modrm? = false, mod = 0, rm32 = 0, r32 = 0
# var word-slice = {0, 0}
# var word-slice : (ref slice)
# while true
# word-slice = next-word(line)
# if (slice-empty?(word-slice)) break
@ -2285,17 +2285,17 @@ emit-modrm: # line : (address stream byte), out : (address buffered-file)
53/push-ebx
56/push-esi
57/push-edi
# var word-slice/ecx = {0, 0}
# var word-slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var has-modrm?/edx = false
# var has-modrm?/edx : boolean = false
31/xor 3/mod/direct 2/rm32/edx . . . 2/r32/edx . . # clear edx
# var mod/ebx = 0
# var mod/ebx : byte = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
# var rm32/esi = 0
# var rm32/esi : byte = 0
31/xor 3/mod/direct 6/rm32/esi . . . 6/r32/esi . . # clear esi
# var r32/edi = 0
# var r32/edi : byte = 0
31/xor 3/mod/direct 7/rm32/edi . . . 7/r32/edi . . # clear edi
# rewind-stream(line)
# . . push args
@ -2395,21 +2395,21 @@ $emit-modrm:check0:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) pass through
3d/compare-eax-and 0/imm32
# . if (eax != false) pass through
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-modrm:break/disp32
$emit-modrm:check1:
# if (slice-starts-with?(word-slice, "#")) break
# . spill edx
52/push-edx
# . start/edx = word-slice->start
# . var start/edx : (address byte) = word-slice->start
8b/copy 0/mod/indirect 1/rm32/ecx . . . 2/r32/edx . . # copy *ecx to edx
# . c/eax = *start
# . var c/eax : byte = *start
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 2/rm32/edx . . . 0/r32/AL . . # copy byte at *edx to AL
# . restore edx
5a/pop-to-edx
# . if (eax == '#') pass through
# . if (c == '#') pass through
3d/compare-eax-and 0x23/imm32/hash
0f 84/jump-if-equal $emit-modrm:break/disp32
$emit-modrm:check-for-mod:
@ -2422,8 +2422,8 @@ $emit-modrm:check-for-mod:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto next check
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $emit-modrm:check-for-rm32/disp8
$emit-modrm:mod:
# mod = parse-hex-int(next-token-from-slice(word-slice->start, word-slice->end, '/'))
@ -2450,8 +2450,8 @@ $emit-modrm:check-for-rm32:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto next check
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $emit-modrm:check-for-r32/disp8
$emit-modrm:rm32:
# rm32 = parse-hex-int(next-token-from-slice(word-slice->start, word-slice->end, '/'))
@ -2478,8 +2478,8 @@ $emit-modrm:check-for-r32:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto next check
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $emit-modrm:check-for-subop/disp8
$emit-modrm:r32:
# r32 = parse-hex-int(next-token-from-slice(word-slice->start, word-slice->end, '/'))
@ -2506,8 +2506,8 @@ $emit-modrm:check-for-subop:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) loop
3d/compare-eax-and 0/imm32
# . if (eax == false) loop
3d/compare-eax-and 0/imm32/false
0f 84/jump-if-equal $emit-modrm:loop/disp32
$emit-modrm:subop:
# r32 = parse-hex-int(next-token-from-slice(word-slice->start, word-slice->end, '/'))
@ -2526,10 +2526,10 @@ $emit-modrm:subop:
e9/jump $emit-modrm:loop/disp32
$emit-modrm:break:
# if (!has-modrm?) return
81 7/subop/compare 3/mod/direct 2/rm32/edx . . . . . 0/imm32 # compare edx
81 7/subop/compare 3/mod/direct 2/rm32/edx . . . . . 0/imm32/false # compare edx
74/jump-if-equal $emit-modrm:end/disp8
$emit-modrm:calculate:
# modrm/ebx = mod & 0b11
# var modrm/ebx : byte = mod & 0b11
81 4/subop/and 3/mod/direct 3/rm32/ebx . . . . . 3/imm32/0b11 # bitwise and of ebx
# modrm <<= 3
c1/shift 4/subop/left 3/mod/direct 3/rm32/ebx . . . . . 3/imm8 # shift ebx left by 3 bits
@ -2569,7 +2569,7 @@ $emit-modrm:end:
emit-sib: # line : (address stream byte), out : (address buffered-file)
# pseudocode:
# var has-sib? = false, base = 0, index = 0, scale = 0
# var word-slice = {0, 0}
# var word-slice : (ref slice)
# while true
# word-slice = next-word(line)
# if (slice-empty?(word-slice)) break
@ -2601,17 +2601,17 @@ emit-sib: # line : (address stream byte), out : (address buffered-file)
53/push-ebx
56/push-esi
57/push-edi
# var word-slice/ecx = {0, 0}
# var word-slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var has-sib?/edx = false
# var has-sib?/edx : boolean = false
31/xor 3/mod/direct 2/rm32/edx . . . 2/r32/edx . . # clear edx
# var scale/ebx = 0
# var scale/ebx : byte = 0
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
# var base/esi = 0
# var base/esi : byte = 0
31/xor 3/mod/direct 6/rm32/esi . . . 6/r32/esi . . # clear esi
# var index/edi = 0
# var index/edi : byte = 0
31/xor 3/mod/direct 7/rm32/edi . . . 7/r32/edi . . # clear edi
# rewind-stream(line)
# . . push args
@ -2704,21 +2704,21 @@ $emit-sib:check0:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) pass through
3d/compare-eax-and 0/imm32
# . if (eax != false) pass through
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-sib:break/disp32
$emit-sib:check1:
# if (slice-starts-with?(word-slice, "#")) break
# . spill edx
52/push-edx
# . start/edx = word-slice->start
# . var start/edx : (address byte) = word-slice->start
8b/copy 0/mod/indirect 1/rm32/ecx . . . 2/r32/edx . . # copy *ecx to edx
# . c/eax = *start
# . var c/eax : byte = *start
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 2/rm32/edx . . . 0/r32/AL . . # copy byte at *edx to AL
# . restore edx
5a/pop-to-edx
# . if (eax == '#') pass through
# . if (c == '#') pass through
3d/compare-eax-and 0x23/imm32/hash
0f 84/jump-if-equal $emit-sib:break/disp32
$emit-sib:check-for-scale:
@ -2731,8 +2731,8 @@ $emit-sib:check-for-scale:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto next check
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $emit-sib:check-for-base/disp8
$emit-sib:scale:
# scale = parse-hex-int(next-token-from-slice(word-slice->start, word-slice->end, '/'))
@ -2759,8 +2759,8 @@ $emit-sib:check-for-base:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto next check
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $emit-sib:check-for-index/disp8
$emit-sib:base:
# base = parse-hex-int(next-token-from-slice(word-slice->start, word-slice->end, '/'))
@ -2787,8 +2787,8 @@ $emit-sib:check-for-index:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) loop
3d/compare-eax-and 0/imm32
# . if (eax == false) loop
3d/compare-eax-and 0/imm32/false
0f 84/jump-if-equal $emit-sib:loop/disp32
$emit-sib:index:
# index = parse-hex-int(next-token-from-slice(word-slice->start, word-slice->end, '/'))
@ -2807,10 +2807,10 @@ $emit-sib:index:
e9/jump $emit-sib:loop/disp32
$emit-sib:break:
# if (!has-sib?) return
81 7/subop/compare 3/mod/direct 2/rm32/edx . . . . . 0/imm32 # compare edx
81 7/subop/compare 3/mod/direct 2/rm32/edx . . . . . 0/imm32/false # compare edx
74/jump-if-equal $emit-sib:end/disp8
$emit-sib:calculate:
# sib/ebx = scale & 0b11
# var sib/ebx : byte = scale & 0b11
81 4/subop/and 3/mod/direct 3/rm32/ebx . . . . . 3/imm32/0b11 # bitwise and of ebx
# sib <<= 2
c1/shift 4/subop/left 3/mod/direct 3/rm32/ebx . . . . . 2/imm8 # shift ebx left by 2 bits
@ -2850,7 +2850,7 @@ $emit-sib:end:
emit-disp: # line : (address stream byte), out : (address buffered-file)
# pseudocode:
# rewind-stream(line)
# var word-slice = {0, 0}
# var word-slice : (ref slice)
# while true
# word-slice = next-word(line)
# if (slice-empty?(word-slice)) break
@ -2872,7 +2872,7 @@ emit-disp: # line : (address stream byte), out : (address buffered-file)
50/push-eax
51/push-ecx
52/push-edx
# var word-slice/ecx = {0, 0}
# var word-slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -2967,17 +2967,17 @@ $emit-disp:check0:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) pass through
3d/compare-eax-and 0/imm32
# . if (eax != false) pass through
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-disp:break/disp32
$emit-disp:check1:
# if (slice-starts-with?(word-slice, "#")) break
# . start/edx = word-slice->start
# . var start/edx : (address byte) = word-slice->start
8b/copy 0/mod/indirect 1/rm32/ecx . . . 2/r32/edx . . # copy *ecx to edx
# . c/eax = *start
# . var c/eax : byte = *start
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 2/rm32/edx . . . 0/r32/AL . . # copy byte at *edx to AL
# . if (eax == '#') break
# . if (c == '#') break
3d/compare-eax-and 0x23/imm32/hash
0f 84/jump-if-equal $emit-disp:break/disp32
$emit-disp:check-for-disp32:
@ -2990,8 +2990,8 @@ $emit-disp:check-for-disp32:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto next check
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $emit-disp:check-for-disp16/disp8
$emit-disp:disp32:
# emit(out, word-slice, 4)
@ -3015,8 +3015,8 @@ $emit-disp:check-for-disp16:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto next check
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $emit-disp:check-for-disp8/disp8
$emit-disp:disp16:
# emit(out, word-slice, 2)
@ -3040,8 +3040,8 @@ $emit-disp:check-for-disp8:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) loop
3d/compare-eax-and 0/imm32
# . if (eax == false) loop
3d/compare-eax-and 0/imm32/false
0f 84/jump-if-equal $emit-disp:loop/disp32
$emit-disp:disp8:
# emit(out, word-slice, 1)
@ -3069,7 +3069,7 @@ $emit-disp:break:
emit-imm: # line : (address stream byte), out : (address buffered-file)
# pseudocode:
# rewind-stream(line)
# var word-slice = {0, 0}
# var word-slice : (ref slice)
# while true
# word-slice = next-word(line)
# if (slice-empty?(word-slice)) break
@ -3091,7 +3091,7 @@ emit-imm: # line : (address stream byte), out : (address buffered-file)
50/push-eax
51/push-ecx
52/push-edx
# var word-slice/ecx = {0, 0}
# var word-slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -3186,17 +3186,17 @@ $emit-imm:check0:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) pass through
3d/compare-eax-and 0/imm32
# . if (eax != false) pass through
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-imm:break/disp32
$emit-imm:check1:
# if (slice-starts-with?(word-slice, "#")) break
# . start/edx = slice->start
# . var start/edx : (address byte) = slice->start
8b/copy 0/mod/indirect 1/rm32/ecx . . . 2/r32/edx . . # copy *ecx to edx
# . c/eax = *start
# . var c/eax : byte = *start
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
8a/copy-byte 0/mod/indirect 2/rm32/edx . . . 0/r32/AL . . # copy byte at *edx to AL
# . if (eax == '#') break
# . if (c == '#') break
3d/compare-eax-and 0x23/imm32/hash
0f 84/jump-if-equal $emit-imm:break/disp32
$emit-imm:check-for-imm32:
@ -3209,8 +3209,8 @@ $emit-imm:check-for-imm32:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto next check
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $emit-imm:check-for-imm16/disp8
$emit-imm:imm32:
# emit(out, word-slice, 4)
@ -3234,8 +3234,8 @@ $emit-imm:check-for-imm16:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto next check
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $emit-imm:check-for-imm8/disp8
$emit-imm:imm16:
# emit(out, word-slice, 2)
@ -3259,8 +3259,8 @@ $emit-imm:check-for-imm8:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) loop
3d/compare-eax-and 0/imm32
# . if (eax == false) loop
3d/compare-eax-and 0/imm32/false
0f 84/jump-if-equal $emit-imm:loop/disp32
$emit-imm:imm8:
# emit(out, word-slice, 1)
@ -5837,7 +5837,7 @@ test-convert-instruction-handles-imm8-operand:
c3/return
# shortcut for parse-hex-int(next-token-from-slice(word->start, word->end, '/'))
parse-datum-of-word: # word : (address slice) -> value/eax
parse-datum-of-word: # word : (address slice) -> value/eax : int
# . prologue
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
@ -5846,7 +5846,7 @@ parse-datum-of-word: # word : (address slice) -> value/eax
56/push-esi
# esi = word
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -5860,7 +5860,7 @@ parse-datum-of-word: # word : (address slice) -> value/eax
e8/call next-token-from-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # add to esp
# value/eax = parse-hex-int(slice)
# return parse-hex-int(slice)
# . . push args
51/push-ecx
# . . call

BIN
apps/sigils
View File

Binary file not shown.

47
apps/sigils.subx
View File

@ -78,8 +78,8 @@ Entry: # run tests if necessary, convert stdin if not
e8/call kernel-string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto interactive
3d/compare-eax-and 0/imm32
# . if (eax == false) goto interactive
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $subx-sigils-main:interactive/disp8
# run-tests()
e8/call run-tests/disp32
@ -147,7 +147,7 @@ subx-sigils: # in : (address buffered-file), out : (address buffered-file)
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var word-slice/edx = {0, 0}
# var word-slice/edx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -189,8 +189,8 @@ $subx-sigils:check1:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) break
3d/compare-eax-and 0/imm32
# . if (eax != false) break
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $subx-sigils:next-line/disp32
$subx-sigils:check-for-comment:
# if (slice-starts-with?(word-slice, "#")) continue
@ -269,8 +269,8 @@ $subx-sigils:check-for-indirect-mode:
e8/call disp32-mode?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax == 0) goto indirect mode
3d/compare-eax-and 0/imm32
# . if (eax == false) goto indirect mode
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $subx-sigils:indirect-mode/disp8
$subx-sigils:disp32-mode:
# emit-indirect-mode(out, word-slice)
@ -1365,7 +1365,7 @@ emit-direct-mode: # out : (address buffered-file), word-slice : (address slice)
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
50/push-eax
# var local-slice/eax : (address slice) = {word-slice->start, word-slice->end}
# var local-slice/eax : (ref slice) = {word-slice->start, word-slice->end}
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 0xc/disp8 . # copy *(ebp+12) to eax
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
ff 6/subop/push 0/mod/indirect 0/rm32/eax . . . . . . # push *eax
@ -1834,7 +1834,7 @@ test-next-word-or-expression:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -1907,7 +1907,7 @@ test-next-word-or-expression-returns-whole-comment:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -1980,7 +1980,7 @@ test-next-word-or-expression-returns-empty-slice-on-eof:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -2022,7 +2022,7 @@ test-next-word-or-expression-returns-string-literal:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -2085,7 +2085,7 @@ test-next-word-or-expression-returns-string-with-escapes:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -2148,7 +2148,7 @@ test-next-word-or-expression-returns-whole-expression:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var slice/ecx = {0, 0}
# var slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -2250,7 +2250,7 @@ parse-effective-address: # word-slice : (address slice) -> base/eax, index/ecx,
# . save registers
56/push-esi
57/push-edi
# var local-slice/esi : (address slice) = {word-slice->start, word-slice->end}
# var local-slice/esi : (ref slice) = {word-slice->start, word-slice->end}
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
ff 6/subop/push 1/mod/*+disp8 6/rm32/esi . . . . 4/disp8 . # push *(esi+4)
ff 6/subop/push 0/mod/indirect 6/rm32/esi . . . . . . # push *esi
@ -2679,7 +2679,7 @@ next-register: # in : (address slice) -> reg/eax : int
56/push-esi
# esi = in
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# var reg-slice/ecx : (address slice) = {in->start, in->start + 3}
# var reg-slice/ecx : (ref slice) = {in->start, in->start + 3}
8b/copy 0/mod/indirect 6/rm32/esi . . . 0/r32/eax . . # copy *esi to eax
05/add-to-eax 3/imm32
50/push-eax
@ -3865,7 +3865,7 @@ disp32-mode?: # in : (address slice) -> reg/eax : boolean
# . save registers
56/push-esi
57/push-edi
# var local-slice/esi : (address slice) = {in->start, in->end}
# var local-slice/esi : (ref slice) = {in->start, in->end}
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
ff 6/subop/push 1/mod/*+disp8 6/rm32/esi . . . . 4/disp8 . # push *(esi+4)
ff 6/subop/push 0/mod/indirect 6/rm32/esi . . . . . . # push *esi
@ -3923,7 +3923,7 @@ emit-indirect-disp32: # out : (address buffered-file), word-slice : (address sl
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# . save registers
56/push-esi
# var local-slice/esi : (address slice) = {in->start, in->end}
# var local-slice/esi : (ref slice) = {in->start, in->end}
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 0xc/disp8 . # copy *(ebp+12) to esi
ff 6/subop/push 1/mod/*+disp8 6/rm32/esi . . . . 4/disp8 . # push *(esi+4)
ff 6/subop/push 0/mod/indirect 6/rm32/esi . . . . . . # push *esi
@ -4055,8 +4055,8 @@ $next-hex-int:loop:
e8/call is-hex-digit?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax == 0) break
3d/compare-eax-and 0/imm32
# . if (eax == false) break
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $next-hex-int:break/disp8
# eax = from-hex-char(*curr)
# . . copy arg to eax
@ -4071,7 +4071,8 @@ $next-hex-int:loop:
# loop
eb/jump $next-hex-int:loop/disp8
$next-hex-int:break:
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0/imm32 # compare ebx
# if (negate?) result = -result
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0/imm32/false # compare ebx
74/jump-if-equal $next-hex-int:end/disp8
$next-hex-int:negate:
f7 3/subop/negate 3/mod/direct 7/rm32/edi . . . . . . # negate edi
@ -4437,8 +4438,8 @@ $next-positive-hex-int:loop:
e8/call is-hex-digit?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax == 0) break
3d/compare-eax-and 0/imm32
# . if (eax == false) break
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $next-positive-hex-int:end/disp8
# eax = from-hex-char(*curr)
# . . copy arg to eax

BIN
apps/survey
View File

Binary file not shown.

142
apps/survey.subx
View File

@ -74,8 +74,8 @@ Entry: # run tests if necessary, convert stdin if not
e8/call kernel-string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto interactive
3d/compare-eax-and 0/imm32
# . if (eax == false) goto interactive
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $subx-survey-main:interactive/disp8
# run-tests()
e8/call run-tests/disp32
@ -115,9 +115,9 @@ $subx-survey-main:end:
subx-survey: # infile : (address buffered-file), out : (address buffered-file)
# pseudocode
# var in : (address stream byte) = stream(4096)
# var in : (ref stream byte 4096)
# slurp(infile, in)
# var segments : (stream segment-info 10)
# var segments : (stream segment-info)
# var labels : (stream label-info Max-labels)
# compute-offsets(in, segments, labels)
# compute-addresses(segments, labels)
@ -131,13 +131,13 @@ subx-survey: # infile : (address buffered-file), out : (address buffered-file)
51/push-ecx
52/push-edx
56/push-esi
# var segments/ecx = stream(10 * 16)
# var segments/ecx : (ref stream {string, segment-info} 160) # 10 rows * 16 bytes/row
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0xa0/imm32 # subtract from esp
68/push 0xa0/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var labels/edx = stream(Max-labels * 16)
# var labels/edx : (ref stream label-info Max-labels*16)
# . data
2b/subtract 0/mod/indirect 5/rm32/.disp32 . . 4/r32/esp Max-labels/disp32 # subtract *Max-labels from esp
# . length
@ -147,7 +147,7 @@ subx-survey: # infile : (address buffered-file), out : (address buffered-file)
# . write
68/push 0/imm32/write
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
# var in/esi = stream(Input-size * 1)
# var in/esi : (ref stream byte Input-size)
# . data
2b/subtract 0/mod/indirect 5/rm32/.disp32 . . 4/r32/esp Input-size/disp32 # subtract *Input-size from esp
# . length
@ -618,7 +618,7 @@ compute-offsets:segment-tmp: # slice
== code
compute-offsets: # in : (address stream), segments : (address stream {string, segment-info}), labels : (address stream {string, label-info})
compute-offsets: # in : (address stream byte), segments : (address stream {string, segment-info}), labels : (address stream {string, label-info})
# skeleton:
# for lines in 'in'
# for words in line
@ -833,8 +833,8 @@ $compute-offsets:case-empty:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) break
3d/compare-eax-and 0/imm32
# . if (eax != false) break
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $compute-offsets:line-loop/disp32
$compute-offsets:case-comment:
# if slice-starts-with?(word-slice, "#") continue
@ -843,8 +843,8 @@ $compute-offsets:case-comment:
e8/call slice-starts-with?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) break
3d/compare-eax-and 0/imm32
# . if (eax != false) break
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $compute-offsets:line-loop/disp32
$compute-offsets:case-segment-header:
# if (!slice-equal?(word-slice/edx, "==")) goto next case
@ -854,8 +854,8 @@ $compute-offsets:case-segment-header:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto next case
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next case
3d/compare-eax-and 0/imm32/false
0f 84/jump-if-equal $compute-offsets:case-label/disp32
# if (curr-segment-name == 0) goto construct-next-segment
81 7/subop/compare 3/mod/direct 6/rm32/esi . . . . . 0/imm32 # compare esi
@ -973,8 +973,8 @@ $compute-offsets:update-curr-segment-name:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) abort
3d/compare-eax-and 0/imm32
# . if (eax != false) abort
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $compute-offsets:abort/disp32
# seg/ebx = get-or-insert(segments, curr-segment-name, row-size=16)
# . . push args
@ -1022,8 +1022,8 @@ $compute-offsets:case-label:
e8/call is-label?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax == 0) goto next case
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next case
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $compute-offsets:case-default/disp8
# strip trailing ':' from word-slice
ff 1/subop/decrement 1/mod/*+disp8 2/rm32/edx . . . . 4/disp8 . # decrement *(edx+4)
@ -1219,13 +1219,13 @@ test-compute-offsets:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# var segments/ecx = stream(2 * 16)
# var segments/ecx : (ref stream byte 2*16)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x20/imm32 # subtract from esp
68/push 0x20/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var labels/edx = stream(2 * 16)
# var labels/edx : (ref stream byte 2*16)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x20/imm32 # subtract from esp
68/push 0x20/imm32/length
68/push 0/imm32/read
@ -1381,7 +1381,7 @@ test-compute-offsets:
compute-addresses: # segments : (address stream {string, segment-info}), labels : (address stream {string, label-info})
# pseudocode:
# srow : (address segment-info) = segments->data
# max = segments->data + segments->write
# max = &segments->data[segments->write]
# num-segments = segments->write / 16
# starting-offset = 0x34 + (num-segments * 0x20)
# while true
@ -1392,7 +1392,7 @@ compute-addresses: # segments : (address stream {string, segment-info}), labels
# trace-sssns("segment " s->key " starts at address " s->address)
# srow += 16 # row-size
# lrow : (address label-info) = labels->data
# max = labels->data + labels->write
# max = &labels->data[labels->write]
# while true
# if (lrow >= max) break
# seg-name : (address string) = lrow->segment-name
@ -1422,7 +1422,7 @@ compute-addresses: # segments : (address stream {string, segment-info}), labels
81 0/subop/add 3/mod/direct 7/rm32/edi . . . . . 0x34/imm32 # add to edi
# srow/eax = segments->data
8d/copy-address 1/mod/*+disp8 6/rm32/esi . . . 0/r32/eax 0xc/disp8 . # copy esi+12 to eax
# max/ecx = segments->data + segments->write
# max/ecx = &segments->data[segments->write]
8b/copy 0/mod/indirect 6/rm32/esi . . . 1/r32/ecx . . # copy *esi to ecx
01/add 3/mod/direct 1/rm32/ecx . . . 6/r32/esi . . # add esi to ecx
$compute-addresses:segment-loop:
@ -1489,7 +1489,7 @@ $compute-addresses:segment-break:
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 0xc/disp8 . # copy *(ebp+12) to esi
# lrow/eax = labels->data
8d/copy-address 1/mod/*+disp8 6/rm32/esi . . . 0/r32/eax 0xc/disp8 . # copy esi+12 to eax
# max/ecx = labels->data + labels->write
# max/ecx = &labels->data[labels->write]
8b/copy 0/mod/indirect 6/rm32/esi . . . 1/r32/ecx . . # copy *esi to ecx
01/add 3/mod/direct 1/rm32/ecx . . . 6/r32/esi . . # add esi to ecx
$compute-addresses:label-loop:
@ -1621,13 +1621,13 @@ test-compute-addresses:
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . var segments/ecx = stream(10 * 16)
# . var segments/ecx : (ref stream byte 10*16)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0xa0/imm32 # subtract from esp
68/push 0xa0/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . var labels/edx = stream(512 * 16)
# . var labels/edx : (ref stream byte 512*16)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x2000/imm32 # subtract from esp
68/push 0x2000/imm32/length
68/push 0/imm32/read
@ -1790,13 +1790,13 @@ test-compute-addresses-large-segments:
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . var segments/ecx = stream(10 * 16)
# . var segments/ecx : (ref stream byte 10*16)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0xa0/imm32 # subtract from esp
68/push 0xa0/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . var labels/edx = stream(512 * 16)
# . var labels/edx : (ref stream byte 512*16)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x2000/imm32 # subtract from esp
68/push 0x2000/imm32/length
68/push 0/imm32/read
@ -1871,7 +1871,7 @@ test-compute-addresses-large-segments:
5d/pop-to-ebp
c3/return
emit-output: # in : (address stream), out : (address buffered-file), segments : (address stream {string, segment-info}), labels : (address stream {string, label-info})
emit-output: # in : (address stream byte), out : (address buffered-file), segments : (address stream {string, segment-info}), labels : (address stream {string, label-info})
# pseudocode:
# emit-headers(out, segments, labels)
# emit-segments(in, out, segments, labels)
@ -1922,7 +1922,7 @@ $emit-output:end:
5d/pop-to-ebp
c3/return
emit-segments: # in : (address stream), out : (address buffered-file), segments : (address stream {string, segment-info}), labels : (address stream {string, label-info})
emit-segments: # in : (address stream byte), out : (address buffered-file), segments : (address stream {string, segment-info}), labels : (address stream {string, label-info})
# pseudocode:
# var offset-of-next-instruction = 0
# var line : (stream byte 512)
@ -1993,11 +1993,11 @@ emit-segments: # in : (address stream), out : (address buffered-file), segments
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var word-slice/edx = {0, 0}
# var word-slice/edx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
# var datum/edi = {0, 0}
# var datum/edi : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
@ -2139,8 +2139,8 @@ $emit-segments:check-for-label:
e8/call is-label?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) break
3d/compare-eax-and 0/imm32
# . if (eax != false) break
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-segments:line-loop/disp32
$emit-segments:check-for-segment-header:
# if (slice-equal?(word-slice, "==")) break
@ -2152,8 +2152,8 @@ $emit-segments:check-for-segment-header:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) break
3d/compare-eax-and 0/imm32
# . if (eax != false) break
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-segments:line-loop/disp32
$emit-segments:2-character:
# if (length(word-slice) != 2) goto next check
@ -2275,8 +2275,8 @@ $emit-segments:check-global-variable:
e8/call string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) goto code label checks
3d/compare-eax-and 0/imm32
# . if (eax != false) goto code label checks
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-segments:check-code-label-for-imm8/disp32
$emit-segments:check-global-variable-for-disp8:
# if has-metadata?(word-slice, "disp8") abort
@ -2288,8 +2288,8 @@ $emit-segments:check-global-variable-for-disp8:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) abort
3d/compare-eax-and 0/imm32
# . if (eax != false) abort
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-segments:global-variable-abort/disp32
$emit-segments:check-global-variable-for-imm8:
# if has-metadata?(word-slice, "imm8") abort
@ -2301,8 +2301,8 @@ $emit-segments:check-global-variable-for-imm8:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) abort
3d/compare-eax-and 0/imm32
# . if (eax != false) abort
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-segments:global-variable-abort/disp32
$emit-segments:emit-global-variable:
# emit-hex(out, info->address, 4)
@ -2326,8 +2326,8 @@ $emit-segments:check-code-label-for-imm8:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) abort
3d/compare-eax-and 0/imm32
# . if (eax != false) abort
3d/compare-eax-and 0/imm32/false
0f 85/jump-if-not-equal $emit-segments:imm8-abort/disp32
$emit-segments:check-code-label-for-imm32:
# if (!has-metadata?(word-slice, "imm32")) goto next check
@ -2339,7 +2339,7 @@ $emit-segments:check-code-label-for-imm32:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto next check
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32
74/jump-if-equal $emit-segments:check-code-label-for-disp8/disp8
#? # dump info->address {{{
@ -2397,8 +2397,8 @@ $emit-segments:check-code-label-for-disp8:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto next check
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $emit-segments:check-code-label-for-disp32/disp8
$emit-segments:emit-code-label-disp8:
# emit-hex(out, info->offset - offset-of-next-instruction, 1)
@ -2424,8 +2424,8 @@ $emit-segments:check-code-label-for-disp32:
e8/call has-metadata?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) abort
3d/compare-eax-and 0/imm32
# . if (eax == false) abort
3d/compare-eax-and 0/imm32/false
0f 84/jump-if-equal $emit-segments:abort/disp32
$emit-segments:emit-code-label-disp32:
# emit-hex(out, info->offset - offset-of-next-instruction, 4)
@ -2577,13 +2577,13 @@ test-emit-segments-global-variable:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . var segments/ecx = stream(10 * 16)
# . var segments/ecx : (ref stream byte 10*16)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0xa0/imm32 # subtract from esp
68/push 0xa0/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . var labels/edx = stream(512 * 16)
# . var labels/edx : (ref stream byte 512*16)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x2000/imm32 # subtract from esp
68/push 0x2000/imm32/length
68/push 0/imm32/read
@ -2814,13 +2814,13 @@ test-emit-segments-code-label:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . var segments/ecx = stream(10 * 16)
# . var segments/ecx : (ref stream byte 10*16)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0xa0/imm32 # subtract from esp
68/push 0xa0/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . var labels/edx = stream(512 * 16)
# . var labels/edx : (ref stream byte 512*16)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x2000/imm32 # subtract from esp
68/push 0x2000/imm32/length
68/push 0/imm32/read
@ -3016,13 +3016,13 @@ test-emit-segments-code-label-absolute:
e8/call clear-stream/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . var segments/ecx = stream(10 * 16)
# . var segments/ecx : (ref stream byte 10*16)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0xa0/imm32 # subtract from esp
68/push 0xa0/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# . var labels/edx = stream(512 * 16)
# . var labels/edx : (ref stream byte 512*16)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x2000/imm32 # subtract from esp
68/push 0x2000/imm32/length
68/push 0/imm32/read
@ -3177,7 +3177,7 @@ emit-headers: # out : (address buffered-file), segments : (address stream {stri
# pseudocode:
# emit-elf-header(out, segments, labels)
# curr-segment = segments->data
# max = segments->data + segments->write
# max = &segments->data[segments->write]
# while true
# if (curr-segment >= max) break
# emit-elf-program-header-entry(out, curr-segment)
@ -3213,7 +3213,7 @@ emit-headers: # out : (address buffered-file), segments : (address stream {stri
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
# curr-segment/eax = segments->data
8d/copy-address 1/mod/*+disp8 0/rm32/eax . . . 0/r32/eax 0xc/disp8 . # copy eax+12 to eax
# max/ecx = segments->data + segments->write
# max/ecx = &segments->data[segments->write]
01/add 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # add eax to ecx
$emit-headers:loop:
# if (curr-segment >= max) break
@ -3431,8 +3431,8 @@ emit-elf-program-header-entry: # out : (address buffered-file), curr-segment :
e8/call string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto next check
3d/compare-eax-and 0/imm32
# . if (eax == false) goto next check
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $emit-elf-program-header-entry:data/disp8
# *$Elf_p_flags = r-x
c7 0/subop/copy 0/mod/indirect 5/rm32/.disp32 . . . $Elf_p_flags/disp32 5/imm32 # copy to *$Elf_p_flags
@ -3479,12 +3479,12 @@ stream-add4: # in : (address stream byte), key : address, val1 : address, val2
56/push-esi
# esi = in
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# curr/eax = in->data + in->write
# curr/eax = &in->data[in->write]
# . eax = in->write
8b/copy 0/mod/indirect 6/rm32/esi . . . 0/r32/eax . . # copy *esi to eax
# . eax = esi+eax+12
8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/esi 0/index/eax . 0/r32/eax 0xc/disp8 . # copy esi+eax+12 to eax
# max/edx = in->data + in->length
# max/edx = &in->data[in->length]
# . edx = in->length
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 2/r32/edx 8/disp8 . # copy *(esi+8) to edx
# . edx = esi+edx+12
@ -3830,7 +3830,7 @@ test-trace-slsls:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var b/ebx : (address slice) = {eax, ecx}
# var b/ebx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 3/rm32/ebx . . . 4/r32/esp . . # copy esp to ebx
@ -3839,7 +3839,7 @@ test-trace-slsls:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var d/edx : (address slice) = {eax, ecx}
# var d/edx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -3955,7 +3955,7 @@ test-trace-slsns:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var b/ebx : (address slice) = {eax, ecx}
# var b/ebx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 3/rm32/ebx . . . 4/r32/esp . . # copy esp to ebx
@ -4071,7 +4071,7 @@ test-trace-slsss:
8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx
05/add-to-eax 4/imm32
# var b/ebx : (address slice) = {eax, ecx}
# var b/ebx : (ref slice) = {eax, ecx}
51/push-ecx
50/push-eax
89/copy 3/mod/direct 3/rm32/ebx . . . 4/r32/esp . . # copy esp to ebx
@ -4125,7 +4125,7 @@ test-trace-slsss:
5d/pop-to-ebp
c3/return
num-bytes: # line : (address stream) -> eax : int
num-bytes: # line : (address stream byte) -> eax : int
# pseudocode:
# result = 0
# while true
@ -4150,7 +4150,7 @@ num-bytes: # line : (address stream) -> eax : int
53/push-ebx
# var result/eax = 0
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
# var word-slice/ecx = {0, 0}
# var word-slice/ecx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
@ -4247,8 +4247,8 @@ $num-bytes:check0:
e8/call slice-empty?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax != 0) break
3d/compare-eax-and 0/imm32
# . if (eax != false) break
3d/compare-eax-and 0/imm32/false
# . restore result now that ZF is set
58/pop-to-eax
75/jump-if-not-equal $num-bytes:end/disp8
@ -4284,8 +4284,8 @@ $num-bytes:check-for-segment-header:
e8/call slice-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax != 0) break
3d/compare-eax-and 0/imm32
# . if (eax != false) break
3d/compare-eax-and 0/imm32/false
# . restore result now that ZF is set
58/pop-to-eax
75/jump-if-not-equal $num-bytes:end/disp8

BIN
apps/tests
View File

Binary file not shown.

18
apps/tests.subx
View File

@ -43,8 +43,8 @@ Entry: # run tests if necessary, convert stdin if not
e8/call kernel-string-equal?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) goto run-main
3d/compare-eax-and 0/imm32
# . if (eax == false) goto run-main
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $subx-tests-main:interactive/disp8
# run-tests()
e8/call run-tests/disp32
@ -101,13 +101,13 @@ subx-gen-run-tests: # in : (address buffered-file), out : (address buffered-fil
52/push-edx
53/push-ebx
57/push-edi
# var line/ecx : (address stream byte) = stream(512)
# var line/ecx : (ref stream byte 512)
81 5/subop/subtract 3/mod/direct 4/rm32/esp . . . . . 0x200/imm32 # subtract from esp
68/push 0x200/imm32/length
68/push 0/imm32/read
68/push 0/imm32/write
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# var word-slice/edx = {0, 0}
# var word-slice/edx : (ref slice)
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx
@ -178,8 +178,8 @@ $subx-gen-run-tests:check-for-label:
e8/call is-label?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
# . if (eax == 0) continue
3d/compare-eax-and 0/imm32
# . if (eax == false) continue
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $subx-gen-run-tests:continue/disp8
$subx-gen-run-tests:check-label-prefix:
# strip trailing ':' from word-slice
@ -192,8 +192,8 @@ $subx-gen-run-tests:check-label-prefix:
e8/call slice-starts-with?/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# . if (eax == 0) break
3d/compare-eax-and 0/imm32
# . if (eax == false) break
3d/compare-eax-and 0/imm32/false
74/jump-if-equal $subx-gen-run-tests:continue/disp8
$subx-gen-run-tests:call-test-function:
# tests-found? = true
@ -242,7 +242,7 @@ $subx-gen-run-tests:continue:
e9/jump $subx-gen-run-tests:loop/disp32
$subx-gen-run-tests:break:
# if (!tests-found?) goto end
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0/imm32 # compare ebx
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0/imm32/false # compare ebx
74/jump-if-equal $subx-gen-run-tests:end/disp8
# write(new-code-segment, " c3/return\n")
# . . push args