# 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->curr >= end) break
# slice->curr = skip-chars-matching-in-slice(slice->curr, end, ' ')
# if (slice->curr >= end) break
# slice->end = skip-chars-not-matching-in-slice(slice->curr, end, ' ')
# *out = parse-hex-int(slice)
# out += 4
# slice->curr = 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/limit
# . 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->curr >= 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->curr = skip-chars-matching-in-slice(slice->curr, end, ' ')
# . EAX = skip-chars-matching-in-slice(slice->curr, 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->curr = EAX
89/copy 0/mod/indirect 1/rm32/ECX . . . 0/r32/EAX . . # copy EAX to *ECX
# if (slice->curr >= 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->curr, 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->curr = 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