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author | Kartik Agaram <vc@akkartik.com> | 2020-10-27 00:49:02 -0700 |
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committer | Kartik Agaram <vc@akkartik.com> | 2020-10-27 00:49:02 -0700 |
commit | 5df70f4dfffdb7543f414a826da3343a8f3d0fb4 (patch) | |
tree | bd4743f280eb9fdbc0b8c1b46d7fc640d81cdcfd /311decimal-int.subx | |
parent | f926aaedfc78d3609253aa213ac43675b433007e (diff) | |
download | mu-5df70f4dfffdb7543f414a826da3343a8f3d0fb4.tar.gz |
7127
Diffstat (limited to '311decimal-int.subx')
-rw-r--r-- | 311decimal-int.subx | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/311decimal-int.subx b/311decimal-int.subx index c7c2b03c..62ec51d6 100644 --- a/311decimal-int.subx +++ b/311decimal-int.subx @@ -413,3 +413,210 @@ $test-decimal-size-multi-digit-negative:end: 89/<- %esp 5/r32/ebp 5d/pop-to-ebp c3/return + +_parse-array-of-decimal-ints: # ad: (addr allocation-descriptor), s: (addr array byte), out: (addr handle array int) + # pseudocode + # end = &s->data[s->size] + # curr = s->data + # size = 0 + # while true + # if (curr >= end) break + # curr = skip-chars-matching-in-slice(curr, end, ' ') + # if (curr >= end) break + # curr = skip-chars-not-matching-in-slice(curr, end, ' ') + # ++size + # allocate-array(ad, size*4, out) + # var slice: slice = {s->data, 0} + # curr = lookup(out)->data + # while true + # if (slice->start >= end) break + # slice->start = skip-chars-matching-in-slice(slice->start, end, ' ') + # if (slice->start >= end) break + # slice->end = skip-chars-not-matching-in-slice(slice->start, end, ' ') + # *curr = parse-hex-int-from-slice(slice) + # curr += 4 + # slice->start = slice->end + # return result + # + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # . save registers + 50/push-eax + 51/push-ecx + 52/push-edx + 53/push-ebx + 56/push-esi + 57/push-edi + # esi = s + 8b/-> *(ebp+0xc) 6/r32/esi + # var curr/ecx: (addr byte) = s->data + 8d/copy-address *(esi+4) 1/r32/ecx + # var end/edx: (addr byte) = &s->data[s->size] + # . edx = s->size + 8b/-> *esi 2/r32/edx + # . edx += curr + 01/add-to %edx 1/r32/ecx + # var size/ebx: int = 0 + 31/xor-with %ebx 3/r32/ebx +$_parse-array-of-decimal-ints:loop1: + # if (curr >= end) break + 39/compare %ecx 2/r32/edx + 73/jump-if-addr>= $_parse-array-of-decimal-ints:break1/disp8 + # curr = skip-chars-matching-in-slice(curr, end, ' ') + (skip-chars-matching-in-slice %ecx %edx 0x20) # => eax + 89/<- %ecx 0/r32/eax + # if (curr >= end) break + 39/compare %ecx 2/r32/edx + 73/jump-if-addr>= $_parse-array-of-decimal-ints:break1/disp8 + # curr = skip-chars-not-matching-in-slice(curr, end, ' ') + (skip-chars-not-matching-in-slice %ecx %edx 0x20) # => eax + 89/<- %ecx 0/r32/eax + # size += 4 + 81 0/subop/add %ebx 4/imm32 + eb/jump $_parse-array-of-decimal-ints:loop1/disp8 +$_parse-array-of-decimal-ints:break1: + (allocate-array *(ebp+8) %ebx *(ebp+0x10)) +$_parse-array-of-decimal-ints:pass2: + # var slice/edi: slice = {s->data, 0} + 68/push 0/imm32/end + 8d/copy-address *(esi+4) 7/r32/edi + 57/push-edi + 89/<- %edi 4/r32/esp + # curr = lookup(out)->data + 8b/-> *(ebp+0x10) 0/r32/eax + (lookup *eax *(eax+4)) # => eax + 8d/copy-address *(eax+4) 1/r32/ecx +$_parse-array-of-decimal-ints:loop2: + # if (slice->start >= end) break + 39/compare *edi 2/r32/edx + 73/jump-if-addr>= $_parse-array-of-decimal-ints:end/disp8 + # slice->start = skip-chars-matching-in-slice(slice->start, end, ' ') + (skip-chars-matching-in-slice *edi %edx 0x20) # => eax + 89/<- *edi 0/r32/eax + # if (slice->start >= end) break + 39/compare *edi 2/r32/edx + 73/jump-if-addr>= $_parse-array-of-decimal-ints:end/disp8 + # slice->end = skip-chars-not-matching-in-slice(slice->start, end, ' ') + (skip-chars-not-matching-in-slice *edi %edx 0x20) # => eax + 89/<- *(edi+4) 0/r32/eax + # *curr = parse-hex-int-from-slice(slice) + (parse-decimal-int-from-slice %edi) + 89/<- *ecx 0/r32/eax + # curr += 4 + 81 0/subop/add %ecx 4/imm32 + # slice->start = slice->end + 8b/-> *(edi+4) 0/r32/eax + 89/<- *edi 0/r32/eax + eb/jump $_parse-array-of-decimal-ints:loop2/disp8 +$_parse-array-of-decimal-ints:end: + # . reclaim locals + 81 0/subop/add %esp 8/imm32 + # . restore registers + 5f/pop-to-edi + 5e/pop-to-esi + 5b/pop-to-ebx + 5a/pop-to-edx + 59/pop-to-ecx + 58/pop-to-eax + # . epilogue + 89/<- %esp 5/r32/ebp + 5d/pop-to-ebp + c3/return + +test-parse-array-of-decimal-ints: + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # var h/esi: (handle array int) + 68/push 0/imm32 + 68/push 0/imm32 + 89/<- %esi 4/r32/esp + # var ecx: (array int) = [1, 2, 3] + 68/push 3/imm32 + 68/push 2/imm32 + 68/push 1/imm32 + 68/push 0xc/imm32/size + 89/<- %ecx 4/r32/esp + # + (_parse-array-of-decimal-ints Heap "1 2 3" %esi) + (lookup *esi *(esi+4)) # => eax + (array-equal? %ecx %eax) # => eax + (check-ints-equal %eax 1 "F - test-parse-array-of-decimal-ints") + # . epilogue + 89/<- %esp 5/r32/ebp + 5d/pop-to-ebp + c3/return + +test-parse-array-of-decimal-ints-empty: + # - empty string = empty array + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # var h/esi: handle + 68/push 0/imm32 + 68/push 0/imm32 + 89/<- %esi 4/r32/esp + # + (_parse-array-of-decimal-ints Heap "" %esi) + (lookup *esi *(esi+4)) # => eax + (check-ints-equal *eax 0 "F - test-parse-array-of-decimal-ints-empty") + # . epilogue + 89/<- %esp 5/r32/ebp + 5d/pop-to-ebp + c3/return + +test-parse-array-of-decimal-ints-just-whitespace: + # - just whitespace = empty array + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # var h/esi: handle + 68/push 0/imm32 + 68/push 0/imm32 + 89/<- %esi 4/r32/esp + # + (_parse-array-of-decimal-ints Heap Space %esi) + (lookup *esi *(esi+4)) # => eax + (check-ints-equal *eax 0 "F - test-parse-array-of-decimal-ints-just-whitespace") + # . epilogue + 89/<- %esp 5/r32/ebp + 5d/pop-to-ebp + c3/return + +test-parse-array-of-decimal-ints-extra-whitespace: + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # var h/esi: handle + 68/push 0/imm32 + 68/push 0/imm32 + 89/<- %esi 4/r32/esp + # var ecx: (array int) = [1, 2, 3] + 68/push 3/imm32 + 68/push 2/imm32 + 68/push 1/imm32 + 68/push 0xc/imm32/size + 89/<- %ecx 4/r32/esp + # + (_parse-array-of-decimal-ints Heap " 1 2 3 " %esi) + (lookup *esi *(esi+4)) # => eax + (array-equal? %ecx %eax) # => eax + (check-ints-equal %eax 1 "F - test-parse-array-of-decimal-ints-extra-whitespace") + # . epilogue + 89/<- %esp 5/r32/ebp + 5d/pop-to-ebp + c3/return + +parse-array-of-decimal-ints: # s: (addr array byte), out: (addr handle array int) + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # + (_parse-array-of-decimal-ints Heap *(ebp+8) *(ebp+0xc)) +$parse-array-of-decimal-ints:end: + # . epilogue + 89/<- %esp 5/r32/ebp + 5d/pop-to-ebp + c3/return + |