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We only can't use rm32=5 when mod=0. Totally fine when it's mod=1.
This commit is contained in:
Kartik Agaram 2018-12-29 13:36:06 -08:00
parent d762282438
commit dd9ba09a7c
34 changed files with 173 additions and 173 deletions
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6
subx/050_write.subx
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@ -22,12 +22,12 @@ _write: # fd : int, s : (address array byte) -> <void>
53/push-EBX
# syscall(write, fd, (data) s+4, (size) *s)
# . fd : EBX
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 3/r32/EBX 8/disp8 . # copy *(EBP+8) to EBX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 3/r32/EBX 8/disp8 . # copy *(EBP+8) to EBX
# . data : ECX = s+4
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 1/r32/ECX 0xc/disp8 . # copy *(EBP+12) to ECX
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
# . size : EDX = *s
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 2/r32/EDX 0xc/disp8 . # copy *(EBP+12) to EDX
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
# . syscall
b8/copy-to-EAX 4/imm32/write

6
subx/051test.subx
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@ -30,8 +30,8 @@ check-ints-equal: # (a : int, b : int, msg : (address array byte)) -> <void>
51/push-ECX
53/push-EBX
# load first 2 args into EAX and EBX
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 3/r32/EBX 0xc/disp8 . # copy *(EBP+12) to EBX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 3/r32/EBX 0xc/disp8 . # copy *(EBP+12) to EBX
# if EAX == EBX success
39/compare 3/mod/direct 0/rm32/EAX . . . 3/r32/EBX . . # compare EAX and EBX
75/jump-if-unequal $check-ints-equal:else/disp8
@ -49,7 +49,7 @@ check-ints-equal: # (a : int, b : int, msg : (address array byte)) -> <void>
$check-ints-equal:else:
# . _write(2/stderr, msg)
# . . push args
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 1/r32/ECX 0x10/disp8 . # copy *(EBP+16) to ECX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 1/r32/ECX 0x10/disp8 . # copy *(EBP+16) to ECX
51/push-ECX
68/push 2/imm32/stderr
# . . call

6
subx/052kernel_string_equal.subx
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@ -54,12 +54,12 @@ kernel-string-equal: # s : null-terminated ascii string, benchmark : length-pre
# return *s1 == 0
#
# initialize s into EDI
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
# initialize benchmark length n into EDX
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 2/r32/EDX 0xc/disp8 . # copy *(EBP+12) to EDX
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
# initialize benchmark data into ESI
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
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
# initialize loop counter i into ECX
b9/copy-to-ECX 0/imm32/exit

2
subx/053new_segment.subx
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@ -29,7 +29,7 @@ new-segment: # len : int -> address
53/push-EBX
# copy len to _mmap-new-segment->len
# TODO: compute _mmap-new-segment+4 before runtime
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
bb/copy-to-EBX _mmap-new-segment/imm32
89/copy 1/mod/*+disp8 3/rm32/EBX . . . 0/r32/EAX 4/disp8 . # copy EAX to *(EBX+4)
# mmap(_mmap-new-segment)

4
subx/054string_equal.subx
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@ -35,9 +35,9 @@ string-equal: # s : string, benchmark : string -> EAX : boolean
# s[i]: EAX
#
# var s/EAX : (address array byte)
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
# var benchmark/EBX : (address array byte)
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 3/r32/EBX 0xc/disp8 . # copy *(EBP+12) to EBX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 3/r32/EBX 0xc/disp8 . # copy *(EBP+12) to EBX
# if s->length != b->length return false
# EDX = s->length
8b/copy 0/mod/indirect 0/rm32/EAX . . . 2/r32/EDX . . # copy *EAX to EDX

20
subx/055trace.subx
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@ -80,9 +80,9 @@ trace: # t : (address trace-stream), line : string
56/push-ESI
57/push-EDI
# EDI = t
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
# ESI = line
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
# ECX = t->write
8b/copy 0/mod/indirect 7/rm32/EDI . . . 1/r32/ECX . . # copy *EDI to ECX
# EDX = t->length
@ -143,7 +143,7 @@ clear-trace-stream: # t : (address trace-stream)
50/push-EAX
51/push-ECX
# EAX = t
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
# ECX = t->length
8b/copy 1/mod/*+disp8 0/rm32/EAX . . . 1/r32/ECX 8/disp8 . # copy *(EAX+8) to ECX
# ECX = &t->data[t->length]
@ -284,7 +284,7 @@ _append-3: # out : address, outend : address, s : (array byte) -> num_bytes_app
51/push-ECX
# _append-4(out, outend, &s->data[0], &s->data[s->length]) -> num_bytes_appended/EAX
# . . push &s->data[s->length]
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 0/r32/EAX 0x10/disp8 . # copy *(EBP+16) to EAX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . 0/r32/EAX 0x10/disp8 . # copy *(EBP+16) to EAX
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
51/push-ECX
@ -292,9 +292,9 @@ _append-3: # out : address, outend : address, s : (array byte) -> num_bytes_app
8d/copy-address 1/mod/*+disp8 0/rm32/EAX . . . 1/r32/ECX 4/disp8 . # copy EAX+4 to ECX
51/push-ECX
# . . push outend
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . push out
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call _append-4/disp32
# . . discard args
@ -321,13 +321,13 @@ _append-4: # out : address, outend : address, in : address, inend : address ->
# EAX/num_bytes_appended = 0
b8/copy-to-EAX 0/imm32
# EDI = out
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
# EDX = outend
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 2/r32/EDX 0xc/disp8 . # copy *(EBP+12) to EDX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 2/r32/EDX 0xc/disp8 . # copy *(EBP+12) to EDX
# ESI = in
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 6/r32/ESI 0x10/disp8 . # copy *(EBP+16) to ESI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 0x10/disp8 . # copy *(EBP+16) to ESI
# ECX = inend
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 1/r32/ECX 0x14/disp8 . # copy *(EBP+20) to ECX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 1/r32/ECX 0x14/disp8 . # copy *(EBP+20) to ECX
$_append-4:loop:
# if ESI/in >= ECX/inend break
39/compare 3/mod/direct 6/rm32/ESI . . . 1/r32/ECX . . # compare ESI with ECX

12
subx/056write.subx
View File

@ -33,11 +33,11 @@ write: # f : fd or (address stream), s : (address array byte) -> <void>
55/push-EBP
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
# if (f < 0x08000000) _write(f, s), return # f can't be a user-mode address, so treat it as a kernel file descriptor
81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 0x08000000/imm32 # compare *(EBP+8)
81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 0x08000000/imm32 # compare *(EBP+8)
7d/jump-if-greater-or-equal $write:fake/disp8
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
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)
# . . call
e8/call _write/disp32
# . . discard args
@ -51,14 +51,14 @@ $write:fake:
52/push-EDX
53/push-EBX
# ECX = f
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX
# EDX = f->write
8b/copy 0/mod/indirect 1/rm32/ECX . . . 2/r32/EDX . . # copy *ECX to EDX
# EBX = f->length
8b/copy 1/mod/*+disp8 1/rm32/ECX . . . 3/r32/EBX 8/disp8 . # copy *(ECX+8) to EBX
# EAX = _append-3(&f->data[f->write], &f->data[f->length], s)
# . . push s
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . push &f->data[f->length]
8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ECX 3/index/EBX . 3/r32/EBX 0xc/disp8 . # copy ECX+EBX+12 to EBX
53/push-EBX
@ -90,7 +90,7 @@ clear-stream: # f : (address stream) -> <void>
50/push-EAX
51/push-ECX
# EAX = f
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
# ECX = 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]

8
subx/057stop.subx
View File

@ -56,7 +56,7 @@ tailor-exit-descriptor: # ed : (address exit-descriptor), nbytes : int -> <void
50/push-EAX
51/push-ECX
# EAX = nbytes
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/EAX 0xc/disp8 . # copy *(EBP+12) to EAX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/EAX 0xc/disp8 . # copy *(EBP+12) to EAX
# Let X be the value of ESP in the caller, before the call to tailor-exit-descriptor.
# The return address for a call in the caller's body will be at:
# X-8 if the caller takes 4 bytes of args for the exit-descriptor (add 4 bytes for the return address)
@ -83,7 +83,7 @@ tailor-exit-descriptor: # ed : (address exit-descriptor), nbytes : int -> <void
f7 3/subop/negate 3/mod/direct 0/rm32/EAX . . . . . . # negate EAX
8d/copy-address 1/mod/*+disp8 4/rm32/sib 5/base/EBP 0/index/EAX . 0/r32/EAX 0xc/disp8 . # copy EBP+EAX+12 to EAX
# copy EAX to ed->target
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX
89/copy 0/mod/indirect 1/rm32/ECX . . . 0/r32/EAX . . # copy EAX to *ECX
# initialize ed->value
c7 0/subop/copy 1/mod/*+disp8 1/rm32/ECX . . . . 4/disp8 0/imm32 # copy to *(ECX+4)
@ -172,7 +172,7 @@ _test-stop-1: # ed : (address exit-descriptor)
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
# _test-stop-2(ed)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call _test-stop-2/disp32
# should never get past this point
@ -200,7 +200,7 @@ _test-stop-2: # ed : (address exit-descriptor)
# . stop(ed, 1)
# . . push args
68/push 1/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call stop/disp32
# should never get past this point

14
subx/058read.subx
View File

@ -57,11 +57,11 @@ read: # f : fd or (address stream), s : (address stream) -> num-bytes-read/EAX
55/push-EBP
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
# if (f < 0x08000000) return _read(f, s) # f can't be a user-mode address, so treat it as a kernel file descriptor
81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 0x08000000/imm32 # compare *(EBP+8)
81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 0x08000000/imm32 # compare *(EBP+8)
7d/jump-if-greater-or-equal $read:fake/disp8
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
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)
# . . call
e8/call _read/disp32
# . . discard args
@ -74,9 +74,9 @@ $read:fake:
56/push-ESI
57/push-EDI
# ESI = f
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 6/r32/ESI 8/disp8 . # copy *(EBP+8) to ESI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 8/disp8 . # copy *(EBP+8) to ESI
# EDI = s
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 7/r32/EDI 0xc/disp8 . # copy *(EBP+12) to ESI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 7/r32/EDI 0xc/disp8 . # copy *(EBP+12) to ESI
# EAX = _append-4(out = &s->data[s->write], outend = &s->data[s->length],
# in = &f->data[f->read], inend = &f->data[f->write])
# . . push &f->data[f->write]
@ -128,14 +128,14 @@ _read: # fd : int, s : (address stream) -> num-bytes-read/EAX
53/push-EBX
56/push-ESI
# ESI = s
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
# EAX = s->write
8b/copy 0/mod/indirect 6/rm32/ESI . . . 0/r32/EAX . . # copy *ESI to EAX
# EDX = s->length
8b/copy 1/mod/*+disp8 6/rm32/ESI . . . 2/r32/EDX 8/disp8 . # copy *(ESI+8) to EDX
# syscall(read, fd, &s->data[s->write], s->length - s->write)
# . . fd : EBX
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 3/r32/EBX 8/disp8 . # copy *(EBP+8) to EBX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 3/r32/EBX 8/disp8 . # copy *(EBP+8) to EBX
# . . data : ECX = &s->data[s->write]
8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/ESI 0/index/EAX . 1/r32/ECX 0xc/disp8 . # copy ESI+EAX+12 to ECX
# . . size : EDX = s->length - s->write

2
subx/059read-byte.subx
View File

@ -50,7 +50,7 @@ read-byte: # f : (address buffered-file) -> byte-or-eof/EAX
51/push-ECX
56/push-ESI
# ESI = f
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 6/r32/ESI 8/disp8 . # copy *(EBP+8) to ESI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 8/disp8 . # copy *(EBP+8) to ESI
# ECX = f->read
8b/copy 1/mod/*+disp8 6/rm32/ESI . . . 1/r32/ECX 8/disp8 . # copy *(ESI+8) to ECX
# if (f->read >= f->write) populate stream from file

14
subx/060write-stream.subx
View File

@ -24,11 +24,11 @@ write-stream: # f : fd or (address stream), s : (address stream) -> <void>
55/push-EBP
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
# if (f < 0x08000000) _write-stream(f, s), return # f can't be a user-mode address, so treat it as a kernel file descriptor
81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 0x08000000/imm32 # compare *(EBP+8)
81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 0x08000000/imm32 # compare *(EBP+8)
7d/jump-if-greater-or-equal $write-stream:fake/disp8
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
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)
# . . call
e8/call _write-stream/disp32
# . . discard args
@ -41,9 +41,9 @@ $write-stream:fake:
56/push-ESI
57/push-EDI
# EDI = f
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
# ESI = s
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
# EAX = _append-4(&f->data[f->write], &f->data[f->length], &s->data[s->read], &s->data[s->write])
# . . push &s->data[s->write]
8b/copy 0/mod/indirect 6/rm32/ESI . . . 0/r32/EAX . . # copy *ESI to EAX
@ -91,14 +91,14 @@ _write-stream: # fd : int, s : (address stream) -> <void>
56/push-ESI
57/push-EDI
# ESI = s
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
# EDI = s->read
8b/copy 1/mod/*+disp8 6/rm32/ESI . . . 7/r32/EDI 4/disp8 . # copy *(ESI+4) to EDI
# EDX = s->write
8b/copy 0/mod/indirect 6/rm32/ESI . . . 2/r32/EDX . . # copy *ESI to EDX
# syscall(write, fd, &s->data[s->read], s->write-s->read)
# . . fd : EBX
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 3/r32/EBX 8/disp8 . # copy *(EBP+8) to EBX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 3/r32/EBX 8/disp8 . # copy *(EBP+8) to EBX
# . . data : ECX = &s->data[s->read]
8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/ESI 7/index/EDI . 1/r32/ECX 0xc/disp8 . # copy ESI+EDI+12 to ECX
# . . size : EDX = s->write - s->read

10
subx/061error.subx
View File

@ -20,15 +20,15 @@ error: # ed : (address exit-descriptor), out : fd or (address stream), msg : (a
# write(out, "Error: ")
# . . push args
68/push "Error: "/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
# write(out, msg)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -36,7 +36,7 @@ error: # ed : (address exit-descriptor), out : fd or (address stream), msg : (a
# write(out, Newline)
# . . push args
68/push Newline/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -44,7 +44,7 @@ error: # ed : (address exit-descriptor), out : fd or (address stream), msg : (a
# stop(ed, 1)
# . . push args
68/push 1/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call stop/disp32
# should never get past this point

6
subx/062write-byte.subx
View File

@ -43,7 +43,7 @@ write-byte: # f : (address buffered-file), n : int -> <void>
51/push-ECX
57/push-EDI
# EDI = f
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
# ECX = f->write
8b/copy 1/mod/*+disp8 7/rm32/EDI . . . 1/r32/ECX 4/disp8 . # copy *(EDI+4) to ECX
# if (f->write >= f->length) flush and clear f's stream
@ -68,7 +68,7 @@ $write-byte:to-stream:
# write to stream
# f->data[f->read] = LSB(n)
31/xor 3/mod/direct 0/rm32/EAX . . . 0/r32/EAX . . # clear EAX
8a/copy-byte 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/AL 0xc/disp8 . # copy byte at *(EBP+12) to AL
8a/copy-byte 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/AL 0xc/disp8 . # copy byte at *(EBP+12) to AL
88/copy-byte 1/mod/*+disp8 4/rm32/sib 7/base/EDI 1/index/ECX . 0/r32/AL 0x10/disp8 . # copy AL to *(EDI+ECX+16)
# ++f->read
ff 0/subop/increment 1/mod/*+disp8 7/rm32/EDI . . . . 4/disp8 . # increment *(EDI+4)
@ -89,7 +89,7 @@ flush: # f : (address buffered-file) -> <void>
50/push-EAX
51/push-ECX
# EAX = f
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
# write-stream(f->fd, data = f+4)
# . . push args
8d/copy-address 1/mod/*+disp8 0/rm32/EAX . . . 1/r32/ECX 4/disp8 . # copy EAX+4 to ECX

10
subx/063print-byte.subx
View File

@ -19,7 +19,7 @@ print-byte: # f : (address buffered-file), n : int -> <void>
# . save registers
50/push-EAX
# AL = convert upper nibble to hex
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/EAX 0xc/disp8 . # copy *(EBP+12) to EAX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/EAX 0xc/disp8 . # copy *(EBP+12) to EAX
c1/shift 5/subop/logic-right 3/mod/direct 0/rm32/EAX . . . . . 4/imm8 # shift EAX right by 4 bits, while padding zeroes
# . hex-char(AL)
# . . push args
@ -31,13 +31,13 @@ print-byte: # f : (address buffered-file), n : int -> <void>
# write-byte(f, AL)
# . . push args
50/push-EAX
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call write-byte/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
# AL = convert lower nibble to hex
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/EAX 0xc/disp8 . # copy *(EBP+12) to EAX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/EAX 0xc/disp8 . # copy *(EBP+12) to EAX
25/and-EAX 0xf/imm32
# . hex-char(AL)
# . . push args
@ -49,7 +49,7 @@ print-byte: # f : (address buffered-file), n : int -> <void>
# write-byte(f, AL)
# . . push args
50/push-EAX
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call write-byte/disp32
# . . discard args
@ -70,7 +70,7 @@ hex-char: # n : int -> char_or_error/EAX
55/push-EBP
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
# EAX = n
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
# if it's <= 9 add '0' to it
81 7/subop/compare 3/mod/direct 0/rm32/EAX . . . . . 0x9/imm32 # compare EAX
7f/jump-if-greater $hex-char:check2/disp8

4
subx/064write-buffered.subx
View File

@ -45,14 +45,14 @@ write-buffered: # f : (address buffered-file), msg : (address array byte) -> <v
56/push-ESI
57/push-EDI
# EAX = msg
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 0/r32/EAX 0xc/disp8 . # copy *(EBP+12) to EAX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . 0/r32/EAX 0xc/disp8 . # copy *(EBP+12) to EAX
# in/ESI = 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]
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
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
# EDX = f->length
8b/copy 1/mod/*+disp8 7/rm32/EDI . . . 2/r32/EDX 0xc/disp8 . # copy *(EDI+12) to EDX
# EBX = f->write

18
subx/065error-byte.subx
View File

@ -34,15 +34,15 @@ error-byte: # ed : (address exit-descriptor), out : (address buffered-file), ms
# write-buffered(out, "Error: ")
# . . push args
68/push "Error: "/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write-buffered/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
# write-buffered(out, msg)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write-buffered/disp32
# . . discard args
@ -50,15 +50,15 @@ error-byte: # ed : (address exit-descriptor), out : (address buffered-file), ms
# write-buffered(out, ": ")
# . . push args
68/push ": "/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write-buffered/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
# print-byte(out, byte)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x14/disp8 . # push *(EBP+20)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x14/disp8 . # push *(EBP+20)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call print-byte/disp32
# . . discard args
@ -66,14 +66,14 @@ error-byte: # ed : (address exit-descriptor), out : (address buffered-file), ms
# write-buffered(out, Newline)
# . . push args
68/push Newline/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write-buffered/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
# . flush(out)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call flush/disp32
# . . discard args
@ -81,7 +81,7 @@ error-byte: # ed : (address exit-descriptor), out : (address buffered-file), ms
# stop(ed, 1)
# . . push args
68/push 1/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call stop/disp32
# should never get past this point

4
subx/066allocate.subx
View File

@ -46,13 +46,13 @@ allocate: # ad : (address allocation-descriptor), n : int -> address-or-null/EA
51/push-ECX
52/push-EDX
# ECX = ad
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX
# save ad->curr
8b/copy 0/mod/indirect 1/rm32/ECX . . . 0/r32/EAX . . # copy *ECX to EAX
# check if there's enough space
# . EDX = ad->curr + n
89/copy 3/mod/direct 2/rm32/EDX . . . 0/r32/EAX . . # copy EAX to EDX
03/add 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 2/r32/EDX 0xc/disp8 . # add *(EBP+12) to EDX
03/add 1/mod/*+disp8 5/rm32/EBP . . . 2/r32/EDX 0xc/disp8 . # add *(EBP+12) to EDX
3b/compare 1/mod/*+disp8 1/rm32/ECX . . . 2/r32/EDX 4/disp8 . # compare EDX with *(ECX+4)
7c/jump-if-lesser $allocate:commit/disp8
# return null if not

BIN
subx/apps/crenshaw2-1
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Binary file not shown.

56
subx/apps/crenshaw2-1.subx
View File

@ -39,12 +39,12 @@
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
# - if argc > 1 and argv[1] == "test" then return run_tests()
# . argc > 1
81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0/disp8 1/imm32 # compare *EBP
81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 0/disp8 1/imm32 # compare *EBP
7e/jump-if-lesser-or-equal $run-main/disp8
# . argv[1] == "test"
# . . push args
68/push "test"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call kernel-string-equal/disp32
# . . discard args
@ -91,7 +91,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# prime the pump
# . Look = get-char(in)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call get-char/disp32
# . . discard args
@ -116,10 +116,10 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# read a digit from 'in' into 'num'
# . get-num(in, num, err, ed)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x14/disp8 . # push *(EBP+20)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x14/disp8 . # push *(EBP+20)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
51/push-ECX/num
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call get-num/disp32
# . . discard args
@ -132,7 +132,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write(out, "bb/copy-to-EBX ")
# . . push args
68/push "bb/copy-to-EBX "/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -140,7 +140,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write-stream(out, num)
# . . push args
51/push-ECX/num
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write-stream/disp32
# . . discard args
@ -148,7 +148,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write(out, Newline)
# . . push args
68/push Newline/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -156,7 +156,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write(out, "b8/copy-to-EAX 1/imm32/exit")
# . . push args
68/push "b8/copy-to-EAX 1/imm32/exit"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -164,7 +164,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write(out, Newline)
# . . push args
68/push Newline/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -172,7 +172,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write(out, "cd/syscall 0x80/imm8")
# . . push args
68/push "cd/syscall 0x80/imm8"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -180,7 +180,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write(out, Newline)
# . . push args
68/push Newline/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -235,8 +235,8 @@ get-num: # in : (address buffered-file), out : (address stream), err : fd or (a
# . expected(ed, err, "integer")
# . . push args
68/push "integer"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x14/disp8 . # push *(EBP+20)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x14/disp8 . # push *(EBP+20)
# . . call
e8/call expected/disp32 # never returns
# . . discard args
@ -252,9 +252,9 @@ $get-num:main:
57/push-EDI
# read necessary variables to registers
# ESI = in
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 6/r32/ESI 8/disp8 . # copy *(EBP+8) to ESI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 8/disp8 . # copy *(EBP+8) to ESI
# EDI = out
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 7/r32/EDI 0xc/disp8 . # copy *(EBP+12) to EDI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 7/r32/EDI 0xc/disp8 . # copy *(EBP+12) to EDI
# ECX = out->write
8b/copy 0/mod/indirect 7/rm32/EDI . . . 1/r32/ECX . . # copy *EDI to ECX
# EDX = out->length
@ -265,8 +265,8 @@ $get-num:main:
# . error(ed, err, msg) # TODO: show full number
# . . push args
68/push "get-num: too many digits in number"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x14/disp8 . # push *(EBP+20)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x14/disp8 . # push *(EBP+20)
# . . call
e8/call error/disp32 # never returns
# . . discard args
@ -487,15 +487,15 @@ expected: # ed : (address exit-descriptor), f : fd or (address stream), s : (ad
# write(f, "Error: ")
# . . push args
68/push "Error: "/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
# write(f, s)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -503,7 +503,7 @@ expected: # ed : (address exit-descriptor), f : fd or (address stream), s : (ad
# write(f, " expected")
# . . push args
68/push " expected"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -511,7 +511,7 @@ expected: # ed : (address exit-descriptor), f : fd or (address stream), s : (ad
# write(f, Newline)
# . . push args
68/push Newline/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -519,7 +519,7 @@ expected: # ed : (address exit-descriptor), f : fd or (address stream), s : (ad
# stop(ed, 1)
# . . push args
68/push 1/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call stop/disp32
# should never get past this point
@ -538,7 +538,7 @@ get-char: # f : (address buffered-file) -> <void>
50/push-EAX
# read-byte(f)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call read-byte/disp32
# . . discard args
@ -560,10 +560,10 @@ is-digit?: # c : int -> bool/EAX
# EAX = false
b8/copy-to-EAX 0/imm32
# if c < '0' return false
81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 0x30/imm32 # compare *(EBP+8)
81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 0x30/imm32 # compare *(EBP+8)
7c/jump-if-lesser $is-digit?:end/disp8
# if c > '9' return false
81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 0x39/imm32 # compare *(EBP+8)
81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 0x39/imm32 # compare *(EBP+8)
7f/jump-if-greater $is-digit?:end/disp8
# otherwise return true
b8/copy-to-EAX 1/imm32

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subx/apps/crenshaw2-1b
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56
subx/apps/crenshaw2-1b.subx
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@ -39,12 +39,12 @@
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
# - if argc > 1 and argv[1] == "test" then return run_tests()
# . argc > 1
81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0/disp8 1/imm32 # compare *EBP
81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 0/disp8 1/imm32 # compare *EBP
7e/jump-if-lesser-or-equal $run-main/disp8
# . argv[1] == "test"
# . . push args
68/push "test"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call kernel-string-equal/disp32
# . . discard args
@ -91,7 +91,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# prime the pump
# . Look = get-char(in)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call get-char/disp32
# . . discard args
@ -116,10 +116,10 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# read a digit from 'in' into 'num'
# . get-num(in, num, err, ed)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x14/disp8 . # push *(EBP+20)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x14/disp8 . # push *(EBP+20)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
51/push-ECX/num
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call get-num/disp32
# . . discard args
@ -132,7 +132,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write(out, "bb/copy-to-EBX ")
# . . push args
68/push "bb/copy-to-EBX "/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -140,7 +140,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write-stream(out, num)
# . . push args
51/push-ECX/num
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write-stream/disp32
# . . discard args
@ -148,7 +148,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write(out, Newline)
# . . push args
68/push Newline/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -156,7 +156,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write(out, "b8/copy-to-EAX 1/imm32/exit")
# . . push args
68/push "b8/copy-to-EAX 1/imm32/exit"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -164,7 +164,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write(out, Newline)
# . . push args
68/push Newline/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -172,7 +172,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write(out, "cd/syscall 0x80/imm8")
# . . push args
68/push "cd/syscall 0x80/imm8"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -180,7 +180,7 @@ compile: # in : (address buffered-file), out : fd or (address stream), err : fd
# . write(out, Newline)
# . . push args
68/push Newline/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -240,8 +240,8 @@ get-num: # in : (address buffered-file), out : (address stream), err : fd or (a
# . expected(ed, err, "integer")
# . . push args
68/push "integer"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x14/disp8 . # push *(EBP+20)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x14/disp8 . # push *(EBP+20)
# . . call
e8/call expected/disp32 # never returns
# . . discard args
@ -257,9 +257,9 @@ $get-num:main:
57/push-EDI
# read necessary variables to registers
# ESI = in
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 6/r32/ESI 8/disp8 . # copy *(EBP+8) to ESI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 8/disp8 . # copy *(EBP+8) to ESI
# EDI = out
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 7/r32/EDI 0xc/disp8 . # copy *(EBP+12) to EDI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 7/r32/EDI 0xc/disp8 . # copy *(EBP+12) to EDI
# ECX = out->write
8b/copy 0/mod/indirect 7/rm32/EDI . . . 1/r32/ECX . . # copy *EDI to ECX
# EDX = out->length
@ -271,8 +271,8 @@ $get-num:loop:
# . error(ed, err, msg) # TODO: show full number
# . . push args
68/push "get-num: too many digits in number"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x14/disp8 . # push *(EBP+20)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x14/disp8 . # push *(EBP+20)
# . . call
e8/call error/disp32 # never returns
# . . discard args
@ -686,15 +686,15 @@ expected: # ed : (address exit-descriptor), f : fd or (address stream), s : (ad
# write(f, "Error: ")
# . . push args
68/push "Error: "/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
# write(f, s)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -702,7 +702,7 @@ expected: # ed : (address exit-descriptor), f : fd or (address stream), s : (ad
# write(f, " expected")
# . . push args
68/push " expected"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -710,7 +710,7 @@ expected: # ed : (address exit-descriptor), f : fd or (address stream), s : (ad
# write(f, Newline)
# . . push args
68/push Newline/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write/disp32
# . . discard args
@ -718,7 +718,7 @@ expected: # ed : (address exit-descriptor), f : fd or (address stream), s : (ad
# stop(ed, 1)
# . . push args
68/push 1/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call stop/disp32
# should never get past this point
@ -736,7 +736,7 @@ get-char: # f : (address buffered-file) -> <void>
50/push-EAX
# read-byte(f)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call read-byte/disp32
# . . discard args
@ -757,10 +757,10 @@ is-digit?: # c : int -> bool/EAX
# EAX = false
b8/copy-to-EAX 0/imm32
# if c < '0' return false
81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 0x30/imm32 # compare *(EBP+8)
81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 0x30/imm32 # compare *(EBP+8)
7c/jump-if-lesser $is-digit?:end/disp8
# if c > '9' return false
81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 0x39/imm32 # compare *(EBP+8)
81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 0x39/imm32 # compare *(EBP+8)
7f/jump-if-greater $is-digit?:end/disp8
# otherwise return true
b8/copy-to-EAX 1/imm32

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subx/apps/factorial
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10
subx/apps/factorial.subx
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@ -24,12 +24,12 @@
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
# - if argc > 1 and argv[1] == "test" then return run_tests()
# . argc > 1
81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0/disp8 1/imm32 # compare *EBP
81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 0/disp8 1/imm32 # compare *EBP
7e/jump-if-lesser-or-equal $run-main/disp8
# . argv[1] == "test"
# . . push args
68/push "test"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call kernel-string-equal/disp32
# . . discard args
@ -63,10 +63,10 @@ factorial: # n : int -> int/EAX
# EAX = 1 (base case)
b8/copy-to-EAX 1/imm32
# if (n <= 1) return
81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 1/imm32 # compare *(EBP+8)
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
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 3/r32/EBX 8/disp8 . # copy *(EBP+8) to EBX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . 3/r32/EBX 8/disp8 . # copy *(EBP+8) to EBX
81 5/subop/subtract 3/mod/direct 3/rm32/EBX . . . . . 1/imm32 # subtract from EBX
# EAX = factorial(n-1)
# . . push args
@ -76,7 +76,7 @@ factorial: # n : int -> int/EAX
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
# return n * factorial(n-1)
f7 4/subop/multiply 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 8/disp8 . # multiply *(EBP+8) into EAX
f7 4/subop/multiply 1/mod/*+disp8 5/rm32/EBP . . 8/disp8 . # multiply *(EBP+8) into EAX
# TODO: check for overflow
$factorial:end:
# . epilog

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subx/apps/hex
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42
subx/apps/hex.subx
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@ -27,12 +27,12 @@
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
# - if argc > 1 and argv[1] == "test" then return run_tests()
# . argc > 1
81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0/disp8 1/imm32 # compare *EBP
81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 0/disp8 1/imm32 # compare *EBP
7e/jump-if-lesser-or-equal $run-main/disp8
# . argv[1] == "test"
# . . push args
68/push "test"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call kernel-string-equal/disp32
# . . discard args
@ -91,9 +91,9 @@ convert: # in : (address buffered-file), out : (address buffered-file), err : (
$convert:loop:
# EAX = convert-next-octet(in, err, ed)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x14/disp8 . # push *(EBP+20)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x14/disp8 . # push *(EBP+20)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call convert-next-octet/disp32
# . . discard first 2 args
@ -104,7 +104,7 @@ $convert:loop:
# write-byte(out, AL)
# . . push args
50/push-EAX
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call write-byte/disp32
# . . discard args
@ -114,7 +114,7 @@ $convert:loop:
$convert:loop-end:
# flush(out)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . call
e8/call flush/disp32
# . . discard args
@ -151,9 +151,9 @@ convert-next-octet: # in : (address buffered-file), err : (address buffered-fil
51/push-ECX
# EAX = scan-next-byte(in, err, ed)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
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)
# . . call
e8/call scan-next-byte/disp32
# . . discard args
@ -167,9 +167,9 @@ convert-next-octet: # in : (address buffered-file), err : (address buffered-fil
89/copy 3/mod/direct 1/rm32/ECX . . . 0/r32/EAX . . # copy EAX to ECX
# EAX = scan-next-byte(in, err, ed)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
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)
# . . call
e8/call scan-next-byte/disp32
# . . discard args
@ -181,8 +181,8 @@ convert-next-octet: # in : (address buffered-file), err : (address buffered-fil
# . . push args
68/push 0x2e/imm32/period/dummy
68/push "convert-next-octet: partial byte found"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
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 . . . . 0x10/disp8 . # push *(EBP+16)
# . . call
e8/call error-byte/disp32 # never returns
$convert-next-octet:convert:
@ -508,7 +508,7 @@ scan-next-byte: # in : (address buffered-file), err : (address buffered-file),
$scan-next-byte:loop:
# EAX = read-byte(in)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call read-byte/disp32
# . . discard args
@ -548,7 +548,7 @@ $scan-next-byte:check2:
75/jump-if-not-equal $scan-next-byte:check3/disp8
# . skip-until-newline(in)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call skip-until-newline/disp32
# . . discard args
@ -559,8 +559,8 @@ $scan-next-byte:check3:
# . . push args
50/push-EAX
68/push "scan-next-byte: invalid byte"/imm32
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x10/disp8 . # push *(EBP+16)
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 . . . . 0x10/disp8 . # push *(EBP+16)
# . . call
e8/call error-byte/disp32 # never returns
$scan-next-byte:end:
@ -1421,7 +1421,7 @@ is-hex-lowercase-byte?: # c : byte -> bool/EAX
# . save registers
51/push-ECX
# ECX = c
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX
# return false if c < '0'
b8/copy-to-EAX 0/imm32/false
81 7/subop/compare 3/mod/direct 1/rm32/ECX . . . . . 0x30/imm32 # compare ECX
@ -1601,7 +1601,7 @@ skip-until-newline: # in : (address buffered-file) -> <void>
$skip-until-newline:loop:
# . EAX = read-byte(in)
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call read-byte/disp32
# . . discard args

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subx/examples/ex10.subx
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@ -22,9 +22,9 @@
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
# argv-equal(argv[1], argv[2])
# . . push argv[2]
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . push argv[1]
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call argv-equal/disp32
# syscall(exit, EAX)

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16
subx/examples/ex11.subx
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@ -53,12 +53,12 @@ kernel-string-equal: # s : null-terminated ascii string, benchmark : length-pre
# return false
# return *s1 == 0
# initialize s into EDI
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
# initialize benchmark length n into EDX
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 2/r32/EDX 0xc/disp8 . # copy *(EBP+12) to EDX
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
# initialize benchmark data into ESI
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
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
# initialize loop counter i into ECX
b9/copy-to-ECX 0/imm32/exit
@ -261,8 +261,8 @@ check-ints-equal: # (a : int, b : int, msg : (address array byte)) -> boolean
51/push-ECX
53/push-EBX
# load args into EAX, EBX and ECX
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 3/r32/EBX 0xc/disp8 . # copy *(EBP+12) to EBX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 3/r32/EBX 0xc/disp8 . # copy *(EBP+12) to EBX
# if EAX == b/EBX print('.') and return
39/compare 3/mod/direct 0/rm32/EAX . . . 3/r32/EBX . . # compare EAX and EBX
75/jump-if-unequal $check-ints-equal:else/disp8
@ -278,7 +278,7 @@ check-ints-equal: # (a : int, b : int, msg : (address array byte)) -> boolean
# otherwise print(msg)
$check-ints-equal:else:
# copy msg into ECX
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 1/r32/ECX 0x10/disp8 . # copy *(EBP+16) to ECX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 1/r32/ECX 0x10/disp8 . # copy *(EBP+16) to ECX
# print(ECX)
# . . push args
51/push-ECX
@ -315,10 +315,10 @@ write-stderr: # s : (address array byte) -> <void>
# . . fd = 2 (stderr)
bb/copy-to-EBX 2/imm32
# . . x = s+4
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX
81 0/subop/add 3/mod/direct 1/rm32/ECX . . . . . 4/imm32 # add to ECX
# . . size = *s
8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 2/r32/EDX 8/disp8 . # copy *(EBP+8) to EDX
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 2/r32/EDX 8/disp8 . # copy *(EBP+8) to EDX
8b/copy 0/mod/indirect 2/rm32/EDX . . . 2/r32/EDX . . # copy *EDX to EDX
# . . syscall
b8/copy-to-EAX 4/imm32/write

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@ -23,7 +23,7 @@
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
# EAX = ascii-length(argv[1])
# . . push args
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call ascii-length/disp32
# . . discard args

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@ -26,9 +26,9 @@
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
# ascii-difference(argv[1], argv[2])
# . . push argv[2]
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
# . . push argv[1]
ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8)
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
# . . call
e8/call ascii-difference/disp32
# . . discard args

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subx/test_apps
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@ -80,7 +80,7 @@ test `uname` = 'Linux' && {
echo ex8
CFLAGS=-g ./subx translate examples/ex8.subx -o examples/ex8
git diff --quiet examples/ex8
[ "$1" != record ] && git diff --quiet examples/ex8
CFLAGS=-g ./subx run examples/ex8 abcd || ret=$?
test $ret -eq 4 # length('abcd')
test `uname` = 'Linux' && {
@ -90,7 +90,7 @@ test `uname` = 'Linux' && {
echo ex9
CFLAGS=-g ./subx translate examples/ex9.subx -o examples/ex9
git diff --quiet examples/ex9
[ "$1" != record ] && git diff --quiet examples/ex9
CFLAGS=-g ./subx run examples/ex9 z x || ret=$?
test $ret -eq 2 # 'z' - 'x'
test `uname` = 'Linux' && {
@ -100,7 +100,7 @@ test `uname` = 'Linux' && {
echo ex10
CFLAGS=-g ./subx translate examples/ex10.subx -o examples/ex10
git diff --quiet examples/ex10
[ "$1" != record ] && git diff --quiet examples/ex10
CFLAGS=-g ./subx run examples/ex10 abc abc || ret=$?
test $ret -eq 1 # equal
CFLAGS=-g ./subx run examples/ex10 abc abcd # 0; not equal
@ -112,7 +112,7 @@ test `uname` = 'Linux' && {
echo ex11
CFLAGS=-g ./subx translate examples/ex11.subx -o examples/ex11
git diff --quiet examples/ex11
[ "$1" != record ] && git diff --quiet examples/ex11
CFLAGS=-g ./subx run examples/ex11
echo
test `uname` = 'Linux' && {
@ -122,7 +122,7 @@ test `uname` = 'Linux' && {
echo ex12
CFLAGS=-g ./subx translate examples/ex12.subx -o examples/ex12
git diff --quiet examples/ex12
[ "$1" != record ] && git diff --quiet examples/ex12
CFLAGS=-g ./subx run examples/ex12 # final byte of mmap'd address is well-nigh guaranteed to be 0
test `uname` = 'Linux' && examples/ex12