diff options
Diffstat (limited to 'subx/075array-equal.subx')
| -rw-r--r-- | subx/075array-equal.subx | 308 |
1 files changed, 305 insertions, 3 deletions
diff --git a/subx/075array-equal.subx b/subx/075array-equal.subx index 24f99b0c..e2b973f8 100644 --- a/subx/075array-equal.subx +++ b/subx/075array-equal.subx @@ -17,7 +17,7 @@ Entry: 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # for debugging: run a single test -#? e8/call test-compare-inequal-arrays-equal-lengths/disp32 +#? e8/call test-parse-array-of-ints-empty/disp32 #? 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/EBX Num-test-failures/disp32 # copy *Num-test-failures to EBX #? eb/jump $array-equal-main:end/disp8 @@ -110,8 +110,6 @@ $array-equal?:end: 5d/pop-to-EBP c3/return -# - tests - test-compare-empty-with-empty-array: # . prolog 55/push-EBP @@ -253,6 +251,310 @@ test-compare-inequal-arrays-equal-lengths: 5d/pop-to-EBP c3/return +parse-array-of-ints: # ad : (address allocation-descriptor), s : (address string) -> result/EAX : (address array int) + # pseudocode + # end = s->data + s->length + # curr = s->data + # size = 0 + # while true + # if (curr >= end) break + # curr = skip-chars-matching-in-slice(curr, end, ' ') + # if (curr >= end) break + # curr = skip-chars-not-matching-in-slice(curr, end, ' ') + # ++size + # result = allocate(ad, (size+1)*4) + # result->size = (size+1)*4 + # var slice = {s->data, 0} + # out = result->data + # while true + # if (slice->curr >= end) break + # slice->curr = skip-chars-matching-in-slice(slice->curr, end, ' ') + # if (slice->curr >= end) break + # slice->end = skip-chars-not-matching-in-slice(slice->curr, end, ' ') + # *out = parse-hex-int(slice) + # out += 4 + # slice->curr = slice->end + # return result + # + # . prolog + 55/push-EBP + 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP + # . save registers + 51/push-ECX + 52/push-EDX + 53/push-EBX + 56/push-ESI + 57/push-EDI + # ESI = s + 8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI + # curr/ECX = s->data + 8d/copy-address 1/mod/*+disp8 6/rm32/ESI . . . 1/r32/ECX 4/disp8 . # copy ESI+4 to ECX + # end/EDX = s->data + s->length + # . EDX = s->length + 8b/copy 0/mod/indirect 6/rm32/ESI . . . 2/r32/EDX . . # copy *ESI to EDX + # . EDX += curr + 01/add 3/mod/direct 2/rm32/EDX . . . 1/r32/ECX . . # add ECX to EDX + # size/EBX = 0 + 31/xor 3/mod/direct 3/rm32/EBX . . . 3/r32/EBX . . # clear EBX +$parse-array-of-ints:loop1: + # if (curr >= end) break + 39/compare 3/mod/direct 1/rm32/ECX . . . 2/r32/EDX . . # compare ECX with EDX + 7d/jump-if-greater-or-equal $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 + 7d/jump-if-greater-or-equal $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->curr >= end) break + 39/compare 0/mod/indirect 1/rm32/ECX . . . 2/r32/EDX . . # compare *ECX with EDX + 7d/jump-if-greater-or-equal $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 + 7d/jump-if-greater-or-equal $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 + == data Heap: |