630 lines
32 KiB
Plaintext
630 lines
32 KiB
Plaintext
# Comparing arrays of numbers.
|
|
|
|
== code
|
|
# instruction effective address register displacement immediate
|
|
# . 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
|
|
|
|
Entry:
|
|
# initialize heap
|
|
# . Heap = new-segment(64KB)
|
|
# . . push args
|
|
68/push Heap/imm32
|
|
68/push 0x10000/imm32/64KB
|
|
# . . call
|
|
e8/call new-segment/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
e8/call run-tests/disp32 # 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.
|
|
$array-equal-main:end:
|
|
# syscall(exit, Num-test-failures)
|
|
8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/EBX Num-test-failures/disp32 # copy *Num-test-failures to EBX
|
|
b8/copy-to-EAX 1/imm32/exit
|
|
cd/syscall 0x80/imm8
|
|
|
|
array-equal?: # a : (address array int), b : (address array int) -> EAX : boolean
|
|
# pseudocode:
|
|
# lena = a->length
|
|
# if (lena != b->length) return false
|
|
# i = 0
|
|
# curra = a->data
|
|
# currb = b->data
|
|
# while i < lena
|
|
# i1 = *curra
|
|
# i2 = *currb
|
|
# if (c1 != c2) return false
|
|
# i+=4, curra+=4, currb+=4
|
|
# return true
|
|
#
|
|
# registers:
|
|
# i: ECX
|
|
# lena: EDX
|
|
# curra: ESI
|
|
# currb: EDI
|
|
# i1: EAX
|
|
# i2: EBX
|
|
#
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# . save registers
|
|
51/push-ECX
|
|
52/push-EDX
|
|
53/push-EBX
|
|
56/push-ESI
|
|
57/push-EDI
|
|
# ESI = a
|
|
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
|
|
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
|
|
81 0/subop/add 3/mod/direct 6/rm32/ESI . . . . . 4/imm32 # add to ESI
|
|
# currb/EDI = b->data
|
|
81 0/subop/add 3/mod/direct 7/rm32/EDI . . . . . 4/imm32 # add to EDI
|
|
# i/ECX = i1/EAX = i2/EBX = 0
|
|
31/xor 3/mod/direct 1/rm32/ECX . . . 1/r32/ECX . . # clear ECX
|
|
$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
|
|
8b/copy 0/mod/indirect 6/rm32/ESI . . . 0/r32/EAX . . # copy *ESI to EAX
|
|
# i2 = *currb
|
|
8b/copy 0/mod/indirect 7/rm32/EDI . . . 3/r32/EBX . . # copy *EDI to EBX
|
|
# if (i1 != i2) 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
|
|
81 0/subop/add 3/mod/direct 1/rm32/ECX . . . . . 4/imm32 # add to ECX
|
|
# currs += 4
|
|
81 0/subop/add 3/mod/direct 6/rm32/ESI . . . . . 4/imm32 # add to ESI
|
|
# currb += 4
|
|
81 0/subop/add 3/mod/direct 7/rm32/EDI . . . . . 4/imm32 # add to EDI
|
|
eb/jump $array-equal?:loop/disp8
|
|
$array-equal?:true:
|
|
b8/copy-to-EAX 1/imm32
|
|
eb/jump $array-equal?:end/disp8
|
|
$array-equal?:false:
|
|
b8/copy-to-EAX 0/imm32
|
|
$array-equal?:end:
|
|
# . restore registers
|
|
5f/pop-to-EDI
|
|
5e/pop-to-ESI
|
|
5b/pop-to-EBX
|
|
5a/pop-to-EDX
|
|
59/pop-to-ECX
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
test-compare-empty-with-empty-array:
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# var ECX = []
|
|
68/push 0/imm32/size
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
# var EDX = []
|
|
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)
|
|
# . . push args
|
|
52/push-EDX
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call array-equal?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 1, msg)
|
|
# . . push args
|
|
68/push "F - test-compare-empty-with-empty-array"/imm32
|
|
68/push 1/imm32/true
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
test-compare-empty-with-non-empty-array: # also checks length-mismatch code path
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# var ECX = [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 = []
|
|
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)
|
|
# . . push args
|
|
52/push-EDX
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call array-equal?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 0, msg)
|
|
# . . push args
|
|
68/push "F - test-compare-empty-with-non-empty-array"/imm32
|
|
68/push 0/imm32/false
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
test-compare-equal-arrays:
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# var ECX = [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]
|
|
68/push 3/imm32
|
|
68/push 2/imm32
|
|
68/push 1/imm32
|
|
68/push 0xc/imm32/size
|
|
89/copy 3/mod/direct 2/rm32/EDX . . . 4/r32/ESP . . # copy ESP to EDX
|
|
# EAX = array-equal?(ECX, EDX)
|
|
# . . push args
|
|
52/push-EDX
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call array-equal?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 1, msg)
|
|
# . . push args
|
|
68/push "F - test-compare-equal-arrays"/imm32
|
|
68/push 1/imm32/true
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
test-compare-inequal-arrays-equal-lengths:
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# var ECX = [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]
|
|
68/push 3/imm32
|
|
68/push 2/imm32
|
|
68/push 1/imm32
|
|
68/push 0xc/imm32/size
|
|
89/copy 3/mod/direct 2/rm32/EDX . . . 4/r32/ESP . . # copy ESP to EDX
|
|
# EAX = array-equal?(ECX, EDX)
|
|
# . . push args
|
|
52/push-EDX
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call array-equal?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 0, msg)
|
|
# . . push args
|
|
68/push "F - test-compare-inequal-arrays-equal-lengths"/imm32
|
|
68/push 0/imm32/false
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
parse-array-of-ints: # ad : (address allocation-descriptor), s : (address string) -> result/EAX : (address array int)
|
|
# pseudocode
|
|
# end = s->data + s->length
|
|
# curr = s->data
|
|
# size = 0
|
|
# while true
|
|
# if (curr >= end) break
|
|
# curr = skip-chars-matching-in-slice(curr, end, ' ')
|
|
# if (curr >= end) break
|
|
# curr = skip-chars-not-matching-in-slice(curr, end, ' ')
|
|
# ++size
|
|
# result = allocate(ad, (size+1)*4)
|
|
# result->size = (size+1)*4
|
|
# var slice = {s->data, 0}
|
|
# out = result->data
|
|
# while true
|
|
# if (slice->start >= end) break
|
|
# slice->start = skip-chars-matching-in-slice(slice->start, end, ' ')
|
|
# if (slice->start >= end) break
|
|
# slice->end = skip-chars-not-matching-in-slice(slice->start, end, ' ')
|
|
# *out = parse-hex-int(slice)
|
|
# out += 4
|
|
# slice->start = slice->end
|
|
# return result
|
|
#
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# . save registers
|
|
51/push-ECX
|
|
52/push-EDX
|
|
53/push-EBX
|
|
56/push-ESI
|
|
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
|
|
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
|
|
# . 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
|
|
31/xor 3/mod/direct 3/rm32/EBX . . . 3/r32/EBX . . # clear EBX
|
|
$parse-array-of-ints:loop1:
|
|
# if (curr >= 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-array-of-ints:break1/disp8
|
|
# curr = skip-chars-matching-in-slice(curr, end, ' ')
|
|
# . EAX = skip-chars-matching-in-slice(curr, end, ' ')
|
|
# . . push args
|
|
68/push 0x20/imm32/space
|
|
52/push-EDX
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call skip-chars-matching-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
# . ECX = EAX
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 0/r32/EAX . . # copy EAX to ECX
|
|
# if (curr >= 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-array-of-ints:break1/disp8
|
|
# curr = skip-chars-not-matching-in-slice(curr, end, ' ')
|
|
# . EAX = skip-chars-not-matching-in-slice(curr, end, ' ')
|
|
# . . push args
|
|
68/push 0x20/imm32/space
|
|
52/push-EDX
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call skip-chars-not-matching-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
# . ECX = EAX
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 0/r32/EAX . . # copy EAX to ECX
|
|
# size += 4
|
|
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)
|
|
# . EAX = allocate(ad, size+4)
|
|
# . . push args
|
|
89/copy 3/mod/direct 0/rm32/EAX . . . 3/r32/EBX . . # copy EBX to EAX
|
|
05/add-to-EAX 4/imm32
|
|
50/push-EAX
|
|
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
|
|
# . . call
|
|
e8/call allocate/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# . EDI = EAX
|
|
89/copy 3/mod/direct 7/rm32/EDI . . . 0/r32/EAX . . # copy EAX to EDI
|
|
# 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}
|
|
# . push 0
|
|
68/push 0/imm32/end
|
|
# . push s->data
|
|
8d/copy-address 1/mod/*+disp8 6/rm32/ESI . . . 1/r32/ECX 4/disp8 . # copy ESI+4 to ECX
|
|
51/push-ECX
|
|
# . bookmark
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
# out/EBX = 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
|
|
39/compare 0/mod/indirect 1/rm32/ECX . . . 2/r32/EDX . . # compare *ECX with EDX
|
|
73/jump-if-greater-or-equal-unsigned $parse-array-of-ints:end/disp8
|
|
# slice->start = skip-chars-matching-in-slice(slice->start, end, ' ')
|
|
# . EAX = skip-chars-matching-in-slice(slice->start, end, ' ')
|
|
# . . push args
|
|
68/push 0x20/imm32/space
|
|
52/push-EDX
|
|
ff 6/subop/push 0/mod/indirect 1/rm32/ECX . . . . . . # push *ECX
|
|
# . . call
|
|
e8/call skip-chars-matching-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
# . slice->start = EAX
|
|
89/copy 0/mod/indirect 1/rm32/ECX . . . 0/r32/EAX . . # copy EAX to *ECX
|
|
# if (slice->start >= end) break
|
|
39/compare 0/mod/indirect 1/rm32/ECX . . . 2/r32/EDX . . # compare *ECX with EDX
|
|
73/jump-if-greater-or-equal-unsigned $parse-array-of-ints:end/disp8
|
|
# slice->end = skip-chars-not-matching-in-slice(slice->start, end, ' ')
|
|
# . EAX = skip-chars-not-matching-in-slice(curr, end, ' ')
|
|
# . . push args
|
|
68/push 0x20/imm32/space
|
|
52/push-EDX
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call skip-chars-not-matching-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
# . slice->end = EAX
|
|
89/copy 1/mod/direct 1/rm32/ECX . . . 0/r32/EAX 4/disp8 . # copy EAX to *(ECX+4)
|
|
# *out = parse-hex-int(slice)
|
|
# . EAX = parse-hex-int(slice)
|
|
# . . push args
|
|
51/push-ECX
|
|
# . . call
|
|
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
|
|
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
|
|
# slice->start = slice->end
|
|
8b/copy 1/mod/direct 1/rm32/ECX . . . 0/r32/EAX 4/disp8 . # copy *(ECX+4) to EAX
|
|
89/copy 0/mod/indirect 1/rm32/ECX . . . 0/r32/EAX . . # copy EAX to *ECX
|
|
81 0/subop/add 3/mod/direct 1/rm32/ECX . . . . . 4/imm32 # add to ECX
|
|
eb/jump $parse-array-of-ints:loop2/disp8
|
|
$parse-array-of-ints:end:
|
|
# return EDI
|
|
89/copy 3/mod/direct 0/rm32/EAX . . . 7/r32/EDI . . # copy EDI to EAX
|
|
# . reclaim locals
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# . restore registers
|
|
5f/pop-to-EDI
|
|
5e/pop-to-ESI
|
|
5b/pop-to-EBX
|
|
5a/pop-to-EDX
|
|
59/pop-to-ECX
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
test-parse-array-of-ints:
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# var ECX = [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
|
|
# EAX = parse-array-of-ints(Heap, "1 2 3")
|
|
# . . push args
|
|
68/push "1 2 3"/imm32
|
|
68/push Heap/imm32
|
|
# . . call
|
|
e8/call parse-array-of-ints/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# EAX = array-equal?(ECX, EAX)
|
|
# . . push args
|
|
50/push-EAX
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call array-equal?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 1, msg)
|
|
# . . push args
|
|
68/push "F - test-parse-array-of-ints"/imm32
|
|
68/push 1/imm32/true
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
test-parse-array-of-ints-empty:
|
|
# - empty string = empty array
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# EAX = parse-array-of-ints(Heap, "")
|
|
# . . push args
|
|
68/push ""/imm32
|
|
68/push Heap/imm32
|
|
# . . call
|
|
e8/call parse-array-of-ints/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(*EAX, 0, msg)
|
|
# . . push args
|
|
68/push "F - test-parse-array-of-ints-empty"/imm32
|
|
68/push 0/imm32/size
|
|
ff 6/subop/push 0/mod/indirect 0/rm32/EAX . . . . . . # push *EAX
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
test-parse-array-of-ints-just-whitespace:
|
|
# - just whitespace = empty array
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# EAX = parse-array-of-ints(Heap, " ")
|
|
# . . push args
|
|
68/push " "/imm32
|
|
68/push Heap/imm32
|
|
# . . call
|
|
e8/call parse-array-of-ints/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(*EAX, 0, msg)
|
|
# . . push args
|
|
68/push "F - test-parse-array-of-ints-empty"/imm32
|
|
68/push 0/imm32/size
|
|
ff 6/subop/push 0/mod/indirect 0/rm32/EAX . . . . . . # push *EAX
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
test-parse-array-of-ints-extra-whitespace:
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# var ECX = [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
|
|
# EAX = parse-array-of-ints(Heap, " 1 2 3 ")
|
|
# . . push args
|
|
68/push " 1 2 3 "/imm32
|
|
68/push Heap/imm32
|
|
# . . call
|
|
e8/call parse-array-of-ints/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# EAX = array-equal?(ECX, EAX)
|
|
# . . push args
|
|
50/push-EAX
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call array-equal?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 1, msg)
|
|
# . . push args
|
|
68/push "F - test-parse-array-of-ints-extra-whitespace"/imm32
|
|
68/push 1/imm32/true
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
# helper for later tests
|
|
# compare an array with a string representation of an array literal
|
|
check-array-equal: # a : (address array int), expected : (address string), msg : (address string)
|
|
# . prolog
|
|
55/push-EBP
|
|
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)
|
|
# . EAX = parse-array-of-ints(Heap, expected)
|
|
# . . push args
|
|
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
|
|
68/push Heap/imm32
|
|
# . . call
|
|
e8/call parse-array-of-ints/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# . b = EAX
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 0/r32/EAX . . # copy EAX to ECX
|
|
# EAX = array-equal?(a, b)
|
|
# . . push args
|
|
51/push-ECX
|
|
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
|
|
# . . call
|
|
e8/call array-equal?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 1, msg)
|
|
# . . push args
|
|
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
|
|
68/push 1/imm32
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
$check-array-equal:end:
|
|
# . restore registers
|
|
58/pop-to-EAX
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
test-check-array-equal:
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# var ECX = [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
|
|
# check-array-equal(ECX, "1 2 3", "msg")
|
|
# . . push args
|
|
68/push "F - test-check-array-equal"/imm32
|
|
68/push "1 2 3"/imm32
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call check-array-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
== data
|
|
|
|
Heap:
|
|
# curr
|
|
0/imm32
|
|
# limit
|
|
0/imm32
|
|
|
|
# . . vim:nowrap:textwidth=0
|