1773 lines
94 KiB
Plaintext
1773 lines
94 KiB
Plaintext
# Some tokenization primitives.
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== code
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# instruction effective address register displacement immediate
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# . op subop mod rm32 base index scale r32
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# . 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
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# extract the next run of characters that are different from a given 'delimiter' (skipping multiple delimiters if necessary)
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# on reaching end of file, return an empty interval
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next-token-from-slice: # start: (addr byte), end: (addr byte), delimiter: byte, out: (addr slice)
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# . prologue
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55/push-ebp
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89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
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# . save registers
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50/push-eax
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51/push-ecx
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52/push-edx
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57/push-edi
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# ecx = end
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8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
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# edx = delimiter
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8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0x10/disp8 . # copy *(ebp+16) to edx
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# edi = out
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8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 0x14/disp8 . # copy *(ebp+20) to edi
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# eax = skip-chars-matching-in-slice(start, end, delimiter)
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# . . push args
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52/push-edx
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51/push-ecx
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ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8)
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# . . call
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e8/call skip-chars-matching-in-slice/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
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# out->start = eax
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89/copy 0/mod/indirect 7/rm32/edi . . . 0/r32/eax . . # copy eax to *edi
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# eax = skip-chars-not-matching-in-slice(eax, end, delimiter)
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# . . push args
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52/push-edx
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51/push-ecx
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50/push-eax
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# . . call
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e8/call skip-chars-not-matching-in-slice/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
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# out->end = eax
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89/copy 1/mod/*+disp8 7/rm32/edi . . . 0/r32/eax 4/disp8 . # copy eax to *(edi+4)
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# . restore registers
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5f/pop-to-edi
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5a/pop-to-edx
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59/pop-to-ecx
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58/pop-to-eax
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# . epilogue
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89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
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5d/pop-to-ebp
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c3/return
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test-next-token-from-slice:
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# . prologue
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55/push-ebp
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89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
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# (eax..ecx) = " ab"
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b8/copy-to-eax " ab"/imm32
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8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
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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
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05/add-to-eax 4/imm32
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# var out/edi: slice
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68/push 0/imm32/end
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68/push 0/imm32/start
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89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
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# next-token-from-slice(eax, ecx, 0x20/space, out)
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# . . push args
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57/push-edi
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68/push 0x20/imm32
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51/push-ecx
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50/push-eax
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# . . call
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e8/call next-token-from-slice/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # add to esp
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# out->start should be at the 'a'
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# . check-ints-equal(out->start - in->start, 2, msg)
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# . . push args
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68/push "F - test-next-token-from-slice: start"/imm32
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68/push 2/imm32
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# . . push out->start - in->start
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8b/copy 0/mod/indirect 7/rm32/edi . . . 1/r32/ecx . . # copy *edi to ecx
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2b/subtract 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # subtract eax from ecx
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51/push-ecx
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# . . call
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e8/call check-ints-equal/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
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# out->end should be after the 'b'
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# check-ints-equal(out->end - in->start, 4, msg)
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# . . push args
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68/push "F - test-next-token-from-slice: end"/imm32
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68/push 4/imm32
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# . . push out->end - in->start
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8b/copy 1/mod/*+disp8 7/rm32/edi . . . 1/r32/ecx 4/disp8 . # copy *(edi+4) to ecx
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2b/subtract 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # subtract eax from ecx
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51/push-ecx
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# . . call
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e8/call check-ints-equal/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
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# . epilogue
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89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
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5d/pop-to-ebp
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c3/return
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test-next-token-from-slice-Eof:
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# . prologue
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55/push-ebp
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89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
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# var out/edi: slice
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68/push 0/imm32/end
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68/push 0/imm32/start
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89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
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# next-token-from-slice(0, 0, 0x20/space, out)
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# . . push args
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57/push-edi
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68/push 0x20/imm32
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68/push 0/imm32
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68/push 0/imm32
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# . . call
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e8/call next-token-from-slice/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # add to esp
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# out should be empty
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# . check-ints-equal(out->end - out->start, 0, msg)
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# . . push args
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68/push "F - test-next-token-from-slice-Eof"/imm32
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68/push 0/imm32
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# . . push out->start - in->start
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8b/copy 1/mod/*+disp8 7/rm32/edi . . . 1/r32/ecx 4/disp8 . # copy *(edi+4) to ecx
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2b/subtract 0/mod/indirect 7/rm32/edi . . . 1/r32/ecx . . # subtract *edi from ecx
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51/push-ecx
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# . . call
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e8/call check-ints-equal/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
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# . epilogue
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89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
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5d/pop-to-ebp
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c3/return
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test-next-token-from-slice-nothing:
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# . prologue
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55/push-ebp
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89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
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# (eax..ecx) = " "
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b8/copy-to-eax " "/imm32
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8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx
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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
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05/add-to-eax 4/imm32
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# var out/edi: slice
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68/push 0/imm32/end
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68/push 0/imm32/start
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89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
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# next-token-from-slice(in, 0x20/space, out)
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# . . push args
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57/push-edi
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68/push 0x20/imm32
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51/push-ecx
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50/push-eax
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# . . call
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e8/call next-token-from-slice/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # add to esp
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# out should be empty
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# . check-ints-equal(out->end - out->start, 0, msg)
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# . . push args
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68/push "F - test-next-token-from-slice-Eof"/imm32
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68/push 0/imm32
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# . . push out->start - in->start
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8b/copy 1/mod/*+disp8 7/rm32/edi . . . 1/r32/ecx 4/disp8 . # copy *(edi+4) to ecx
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2b/subtract 0/mod/indirect 7/rm32/edi . . . 1/r32/ecx . . # subtract *edi from ecx
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51/push-ecx
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# . . call
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e8/call check-ints-equal/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
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# . epilogue
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89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
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5d/pop-to-ebp
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c3/return
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skip-chars-matching: # in: (addr stream byte), delimiter: byte
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# . prologue
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55/push-ebp
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89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
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# . save registers
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50/push-eax
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51/push-ecx
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52/push-edx
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53/push-ebx
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56/push-esi
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# esi = in
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8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
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# ecx = in->read
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8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
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# ebx = in->write
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8b/copy 0/mod/indirect 6/rm32/esi . . . 3/r32/ebx . . # copy *esi to ebx
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# edx = delimiter
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8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
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$skip-chars-matching:loop:
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# if (in->read >= in->write) break
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39/compare 3/mod/direct 1/rm32/ecx . . . 3/r32/ebx . . # compare ecx with ebx
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7d/jump-if->= $skip-chars-matching:end/disp8
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# eax = in->data[in->read]
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31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
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8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/AL 0xc/disp8 . # copy byte at *(esi+ecx+12) to AL
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# if (eax != delimiter) break
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39/compare 3/mod/direct 0/rm32/eax . . . 2/r32/edx . . # compare eax and edx
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75/jump-if-!= $skip-chars-matching:end/disp8
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# ++in->read
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41/increment-ecx
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eb/jump $skip-chars-matching:loop/disp8
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$skip-chars-matching:end:
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# persist in->read
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89/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy ecx to *(esi+4)
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# . restore registers
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5e/pop-to-esi
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5b/pop-to-ebx
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5a/pop-to-edx
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59/pop-to-ecx
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58/pop-to-eax
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# . epilogue
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89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
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5d/pop-to-ebp
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c3/return
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test-skip-chars-matching:
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# setup
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# . clear-stream(_test-stream)
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# . . push args
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68/push _test-stream/imm32
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# . . call
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e8/call clear-stream/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
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# write(_test-stream, " ab")
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# . . push args
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68/push " ab"/imm32
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68/push _test-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
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# skip-chars-matching(_test-stream, 0x20/space)
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# . . push args
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68/push 0x20/imm32
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68/push _test-stream/imm32
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# . . call
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e8/call skip-chars-matching/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
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# check-ints-equal(_test-stream->read, 2, msg)
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# . . push args
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68/push "F - test-skip-chars-matching"/imm32
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68/push 2/imm32
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# . . push *_test-stream->read
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b8/copy-to-eax _test-stream/imm32
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ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
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# . . call
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e8/call check-ints-equal/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
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# end
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c3/return
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test-skip-chars-matching-none:
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# setup
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# . clear-stream(_test-stream)
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# . . push args
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68/push _test-stream/imm32
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# . . call
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e8/call clear-stream/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
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# write(_test-stream, "ab")
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# . . push args
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68/push "ab"/imm32
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68/push _test-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
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# skip-chars-matching(_test-stream, 0x20/space)
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# . . push args
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68/push 0x20/imm32
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68/push _test-stream/imm32
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# . . call
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e8/call skip-chars-matching/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
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# check-ints-equal(_test-stream->read, 0, msg)
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# . . push args
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68/push "F - test-skip-chars-matching-none"/imm32
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68/push 0/imm32
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# . . push *_test-stream->read
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b8/copy-to-eax _test-stream/imm32
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ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
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# . . call
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e8/call check-ints-equal/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
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# end
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c3/return
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skip-chars-matching-whitespace: # in: (addr stream byte)
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# . prologue
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55/push-ebp
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89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
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# . save registers
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50/push-eax
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51/push-ecx
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53/push-ebx
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56/push-esi
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# esi = in
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8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
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# ecx = in->read
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8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
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# ebx = in->write
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8b/copy 0/mod/indirect 6/rm32/esi . . . 3/r32/ebx . . # copy *esi to ebx
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$skip-chars-matching-whitespace:loop:
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# if (in->read >= in->write) break
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39/compare 3/mod/direct 1/rm32/ecx . . . 3/r32/ebx . . # compare ecx with ebx
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7d/jump-if->= $skip-chars-matching-whitespace:end/disp8
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# eax = in->data[in->read]
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31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
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8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/AL 0xc/disp8 . # copy byte at *(esi+ecx+12) to AL
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# if (eax == ' ') goto body
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3d/compare-eax-and 0x20/imm32/space
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74/jump-if-= $skip-chars-matching-whitespace:body/disp8
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# if (eax == '\n') goto body
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3d/compare-eax-and 0x0a/imm32/newline
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74/jump-if-= $skip-chars-matching-whitespace:body/disp8
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# if (eax == '\t') goto body
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3d/compare-eax-and 0x09/imm32/tab
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74/jump-if-= $skip-chars-matching-whitespace:body/disp8
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# if (eax != '\r') break
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3d/compare-eax-and 0x0d/imm32/cr
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75/jump-if-!= $skip-chars-matching-whitespace:end/disp8
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$skip-chars-matching-whitespace:body:
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# ++in->read
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41/increment-ecx
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eb/jump $skip-chars-matching-whitespace:loop/disp8
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$skip-chars-matching-whitespace:end:
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# persist in->read
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89/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy ecx to *(esi+4)
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# . restore registers
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5e/pop-to-esi
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5b/pop-to-ebx
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59/pop-to-ecx
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58/pop-to-eax
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# . epilogue
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89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
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5d/pop-to-ebp
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c3/return
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test-skip-chars-matching-whitespace:
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# setup
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# . clear-stream(_test-stream)
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# . . push args
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68/push _test-stream/imm32
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# . . call
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e8/call clear-stream/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
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# write(_test-stream, " \nab")
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# . . push args
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68/push " \nab"/imm32
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68/push _test-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
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# skip-chars-matching-whitespace(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call skip-chars-matching-whitespace/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# check-ints-equal(_test-stream->read, 2, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-chars-matching-whitespace"/imm32
|
|
68/push 2/imm32
|
|
# . . push *_test-stream->read
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# end
|
|
c3/return
|
|
|
|
# minor fork of 'skip-chars-matching'
|
|
skip-chars-not-matching: # in: (addr stream byte), delimiter: byte
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# . save registers
|
|
50/push-eax
|
|
51/push-ecx
|
|
52/push-edx
|
|
53/push-ebx
|
|
56/push-esi
|
|
# esi = in
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
|
|
# ecx = in->read
|
|
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
|
|
# ebx = in->write
|
|
8b/copy 0/mod/indirect 6/rm32/esi . . . 3/r32/ebx . . # copy *esi to ebx
|
|
# edx = delimiter
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
|
|
$skip-chars-not-matching:loop:
|
|
# if (in->read >= in->write) break
|
|
39/compare 3/mod/direct 1/rm32/ecx . . . 3/r32/ebx . . # compare ecx with ebx
|
|
7d/jump-if->= $skip-chars-not-matching:end/disp8
|
|
# eax = in->data[in->read]
|
|
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
|
|
8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/AL 0xc/disp8 . # copy byte at *(esi+ecx+12) to AL
|
|
# if (eax == delimiter) break
|
|
39/compare 3/mod/direct 0/rm32/eax . . . 2/r32/edx . . # compare eax and edx
|
|
74/jump-if-= $skip-chars-not-matching:end/disp8
|
|
# ++in->read
|
|
41/increment-ecx
|
|
eb/jump $skip-chars-not-matching:loop/disp8
|
|
$skip-chars-not-matching:end:
|
|
# persist in->read
|
|
89/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy ecx to *(esi+4)
|
|
# . restore registers
|
|
5e/pop-to-esi
|
|
5b/pop-to-ebx
|
|
5a/pop-to-edx
|
|
59/pop-to-ecx
|
|
58/pop-to-eax
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-chars-not-matching:
|
|
# setup
|
|
# . clear-stream(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call clear-stream/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# write(_test-stream, "ab ")
|
|
# . . push args
|
|
68/push "ab "/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call write/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# skip-chars-not-matching(_test-stream, 0x20/space)
|
|
# . . push args
|
|
68/push 0x20/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call skip-chars-not-matching/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# check-ints-equal(_test-stream->read, 2, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-chars-not-matching"/imm32
|
|
68/push 2/imm32
|
|
# . . push *_test-stream->read
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# end
|
|
c3/return
|
|
|
|
test-skip-chars-not-matching-none:
|
|
# setup
|
|
# . clear-stream(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call clear-stream/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# write(_test-stream, " ab")
|
|
# . . push args
|
|
68/push " ab"/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call write/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# skip-chars-not-matching(_test-stream, 0x20/space)
|
|
# . . push args
|
|
68/push 0x20/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call skip-chars-not-matching/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# check-ints-equal(_test-stream->read, 0, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-chars-not-matching-none"/imm32
|
|
68/push 0/imm32
|
|
# . . push *_test-stream->read
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# end
|
|
c3/return
|
|
|
|
test-skip-chars-not-matching-all:
|
|
# setup
|
|
# . clear-stream(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call clear-stream/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# write(_test-stream, "ab")
|
|
# . . push args
|
|
68/push "ab"/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call write/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# skip-chars-not-matching(_test-stream, 0x20/space)
|
|
# . . push args
|
|
68/push 0x20/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call skip-chars-not-matching/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# check-ints-equal(_test-stream->read, 2, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-chars-not-matching-all"/imm32
|
|
68/push 2/imm32
|
|
# . . push *_test-stream->read
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# end
|
|
c3/return
|
|
|
|
skip-chars-not-matching-whitespace: # in: (addr stream byte)
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# . save registers
|
|
50/push-eax
|
|
51/push-ecx
|
|
53/push-ebx
|
|
56/push-esi
|
|
# esi = in
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
|
|
# ecx = in->read
|
|
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
|
|
# ebx = in->write
|
|
8b/copy 0/mod/indirect 6/rm32/esi . . . 3/r32/ebx . . # copy *esi to ebx
|
|
$skip-chars-not-matching-whitespace:loop:
|
|
# if (in->read >= in->write) break
|
|
39/compare 3/mod/direct 1/rm32/ecx . . . 3/r32/ebx . . # compare ecx with ebx
|
|
7d/jump-if->= $skip-chars-not-matching-whitespace:end/disp8
|
|
# eax = in->data[in->read]
|
|
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
|
|
8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/AL 0xc/disp8 . # copy byte at *(esi+ecx+12) to AL
|
|
# if (eax == ' ') break
|
|
3d/compare-eax-and 0x20/imm32/space
|
|
74/jump-if-= $skip-chars-not-matching-whitespace:end/disp8
|
|
# if (eax == '\n') break
|
|
3d/compare-eax-and 0x0a/imm32/newline
|
|
74/jump-if-= $skip-chars-not-matching-whitespace:end/disp8
|
|
# if (eax == '\t') break
|
|
3d/compare-eax-and 0x09/imm32/tab
|
|
74/jump-if-= $skip-chars-not-matching-whitespace:end/disp8
|
|
# if (eax == '\r') break
|
|
3d/compare-eax-and 0x0d/imm32/cr
|
|
74/jump-if-= $skip-chars-not-matching-whitespace:end/disp8
|
|
# ++in->read
|
|
41/increment-ecx
|
|
eb/jump $skip-chars-not-matching-whitespace:loop/disp8
|
|
$skip-chars-not-matching-whitespace:end:
|
|
# persist in->read
|
|
89/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy ecx to *(esi+4)
|
|
# . restore registers
|
|
5e/pop-to-esi
|
|
5b/pop-to-ebx
|
|
59/pop-to-ecx
|
|
58/pop-to-eax
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-chars-not-matching-whitespace:
|
|
# setup
|
|
# . clear-stream(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call clear-stream/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# write(_test-stream, "ab\n")
|
|
# . . push args
|
|
68/push "ab\n"/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call write/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# skip-chars-not-matching-whitespace(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call skip-chars-not-matching-whitespace/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# check-ints-equal(_test-stream->read, 2, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-chars-not-matching-whitespace"/imm32
|
|
68/push 2/imm32
|
|
# . . push *_test-stream->read
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# end
|
|
c3/return
|
|
|
|
skip-chars-matching-in-slice: # curr: (addr byte), end: (addr byte), delimiter: byte -> curr/eax: (addr byte)
|
|
# . prologue
|
|
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
|
|
# eax = curr
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax
|
|
# ecx = end
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
|
|
# edx = delimiter
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0x10/disp8 . # copy *(ebp+16) to edx
|
|
# var c/ebx: byte = 0
|
|
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
|
|
$skip-chars-matching-in-slice:loop:
|
|
# if (curr >= end) break
|
|
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
|
|
73/jump-if-addr>= $skip-chars-matching-in-slice:end/disp8
|
|
# c = *curr
|
|
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
|
|
# if (c != delimiter) break
|
|
39/compare 3/mod/direct 3/rm32/ebx . . . 2/r32/edx . . # compare ebx and edx
|
|
75/jump-if-!= $skip-chars-matching-in-slice:end/disp8
|
|
# ++curr
|
|
40/increment-eax
|
|
eb/jump $skip-chars-matching-in-slice:loop/disp8
|
|
$skip-chars-matching-in-slice:end:
|
|
# . restore registers
|
|
5b/pop-to-ebx
|
|
5a/pop-to-edx
|
|
59/pop-to-ecx
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-chars-matching-in-slice:
|
|
# (eax..ecx) = " ab"
|
|
b8/copy-to-eax " ab"/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-chars-matching-in-slice(eax, ecx, 0x20/space)
|
|
# . . push args
|
|
68/push 0x20/imm32/space
|
|
51/push-ecx
|
|
50/push-eax
|
|
# . . 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
|
|
# check-ints-equal(ecx-eax, 2, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-chars-matching-in-slice"/imm32
|
|
68/push 2/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# end
|
|
c3/return
|
|
|
|
test-skip-chars-matching-in-slice-none:
|
|
# (eax..ecx) = "ab"
|
|
b8/copy-to-eax "ab"/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-chars-matching-in-slice(eax, ecx, 0x20/space)
|
|
# . . push args
|
|
68/push 0x20/imm32/space
|
|
51/push-ecx
|
|
50/push-eax
|
|
# . . 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
|
|
# check-ints-equal(ecx-eax, 2, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-chars-matching-in-slice-none"/imm32
|
|
68/push 2/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# end
|
|
c3/return
|
|
|
|
skip-chars-matching-whitespace-in-slice: # curr: (addr byte), end: (addr byte) -> curr/eax: (addr byte)
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# . save registers
|
|
51/push-ecx
|
|
53/push-ebx
|
|
# eax = curr
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax
|
|
# ecx = end
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
|
|
# var c/ebx: byte = 0
|
|
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
|
|
$skip-chars-matching-whitespace-in-slice:loop:
|
|
# if (curr >= end) break
|
|
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
|
|
0f 83/jump-if-addr>= $skip-chars-matching-in-slice:end/disp32
|
|
# c = *curr
|
|
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
|
|
# if (c == ' ') goto body
|
|
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x20/imm32/space # compare ebx
|
|
74/jump-if-= $skip-chars-matching-whitespace-in-slice:body/disp8
|
|
# if (c == '\n') goto body
|
|
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0a/imm32/newline # compare ebx
|
|
74/jump-if-= $skip-chars-matching-whitespace-in-slice:body/disp8
|
|
# if (c == '\t') goto body
|
|
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x09/imm32/tab # compare ebx
|
|
74/jump-if-= $skip-chars-matching-whitespace-in-slice:body/disp8
|
|
# if (c != '\r') break
|
|
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0d/imm32/cr # compare ebx
|
|
75/jump-if-!= $skip-chars-matching-whitespace-in-slice:end/disp8
|
|
$skip-chars-matching-whitespace-in-slice:body:
|
|
# ++curr
|
|
40/increment-eax
|
|
eb/jump $skip-chars-matching-whitespace-in-slice:loop/disp8
|
|
$skip-chars-matching-whitespace-in-slice:end:
|
|
# . restore registers
|
|
5b/pop-to-ebx
|
|
59/pop-to-ecx
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-chars-matching-whitespace-in-slice:
|
|
# (eax..ecx) = " \nab"
|
|
b8/copy-to-eax " \nab"/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-chars-matching-whitespace-in-slice(eax, ecx)
|
|
# . . push args
|
|
51/push-ecx
|
|
50/push-eax
|
|
# . . call
|
|
e8/call skip-chars-matching-whitespace-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# check-ints-equal(ecx-eax, 2, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-chars-matching-whitespace-in-slice"/imm32
|
|
68/push 2/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# end
|
|
c3/return
|
|
|
|
# minor fork of 'skip-chars-matching-in-slice'
|
|
skip-chars-not-matching-in-slice: # curr: (addr byte), end: (addr byte), delimiter: byte -> curr/eax: (addr byte)
|
|
# . prologue
|
|
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
|
|
# eax = curr
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax
|
|
# ecx = end
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
|
|
# edx = delimiter
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0x10/disp8 . # copy *(ebp+16) to edx
|
|
# var c/ebx: byte = 0
|
|
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
|
|
$skip-chars-not-matching-in-slice:loop:
|
|
# if (curr >= end) break
|
|
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
|
|
73/jump-if-addr>= $skip-chars-not-matching-in-slice:end/disp8
|
|
# c = *curr
|
|
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
|
|
# if (c == delimiter) break
|
|
39/compare 3/mod/direct 3/rm32/ebx . . . 2/r32/edx . . # compare ebx and edx
|
|
74/jump-if-= $skip-chars-not-matching-in-slice:end/disp8
|
|
# ++curr
|
|
40/increment-eax
|
|
eb/jump $skip-chars-not-matching-in-slice:loop/disp8
|
|
$skip-chars-not-matching-in-slice:end:
|
|
# . restore registers
|
|
5b/pop-to-ebx
|
|
5a/pop-to-edx
|
|
59/pop-to-ecx
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-chars-not-matching-in-slice:
|
|
# (eax..ecx) = "ab "
|
|
b8/copy-to-eax "ab "/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-chars-not-matching-in-slice(eax, ecx, 0x20/space)
|
|
# . . push args
|
|
68/push 0x20/imm32/space
|
|
51/push-ecx
|
|
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
|
|
# check-ints-equal(ecx-eax, 1, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-chars-not-matching-in-slice"/imm32
|
|
68/push 1/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# end
|
|
c3/return
|
|
|
|
test-skip-chars-not-matching-in-slice-none:
|
|
# (eax..ecx) = " ab"
|
|
b8/copy-to-eax " ab"/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-chars-not-matching-in-slice(eax, ecx, 0x20/space)
|
|
# . . push args
|
|
68/push 0x20/imm32/space
|
|
51/push-ecx
|
|
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
|
|
# check-ints-equal(ecx-eax, 3, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-chars-not-matching-in-slice-none"/imm32
|
|
68/push 3/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# end
|
|
c3/return
|
|
|
|
test-skip-chars-not-matching-in-slice-all:
|
|
# (eax..ecx) = "ab"
|
|
b8/copy-to-eax "ab"/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-chars-not-matching-in-slice(eax, ecx, 0x20/space)
|
|
# . . push args
|
|
68/push 0x20/imm32/space
|
|
51/push-ecx
|
|
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
|
|
# check-ints-equal(ecx-eax, 0, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-chars-not-matching-in-slice-all"/imm32
|
|
68/push 0/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# end
|
|
c3/return
|
|
|
|
skip-chars-not-matching-whitespace-in-slice: # curr: (addr byte), end: (addr byte) -> curr/eax: (addr byte)
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# . save registers
|
|
51/push-ecx
|
|
53/push-ebx
|
|
# eax = curr
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax
|
|
# ecx = end
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0xc/disp8 . # copy *(ebp+12) to ecx
|
|
# var c/ebx: byte = 0
|
|
31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx
|
|
$skip-chars-not-matching-whitespace-in-slice:loop:
|
|
# if (curr >= end) break
|
|
39/compare 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # compare eax with ecx
|
|
0f 83/jump-if-addr>= $skip-chars-not-matching-in-slice:end/disp32
|
|
# c = *curr
|
|
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
|
|
# if (c == ' ') break
|
|
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x20/imm32/space # compare ebx
|
|
74/jump-if-= $skip-chars-not-matching-whitespace-in-slice:end/disp8
|
|
# if (c == '\n') break
|
|
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0a/imm32/newline # compare ebx
|
|
74/jump-if-= $skip-chars-not-matching-whitespace-in-slice:end/disp8
|
|
# if (c == '\t') break
|
|
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x09/imm32/tab # compare ebx
|
|
74/jump-if-= $skip-chars-not-matching-whitespace-in-slice:end/disp8
|
|
# if (c == '\r') break
|
|
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0d/imm32/cr # compare ebx
|
|
74/jump-if-= $skip-chars-not-matching-whitespace-in-slice:end/disp8
|
|
# ++curr
|
|
40/increment-eax
|
|
eb/jump $skip-chars-not-matching-whitespace-in-slice:loop/disp8
|
|
$skip-chars-not-matching-whitespace-in-slice:end:
|
|
# . restore registers
|
|
5b/pop-to-ebx
|
|
59/pop-to-ecx
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-chars-not-matching-whitespace-in-slice:
|
|
# (eax..ecx) = "ab\n"
|
|
b8/copy-to-eax "ab\n"/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-chars-not-matching-whitespace-in-slice(eax, ecx)
|
|
# . . push args
|
|
51/push-ecx
|
|
50/push-eax
|
|
# . . call
|
|
e8/call skip-chars-not-matching-whitespace-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# check-ints-equal(ecx-eax, 1, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-chars-not-matching-whitespace-in-slice"/imm32
|
|
68/push 1/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# end
|
|
c3/return
|
|
|
|
# update line->read to end of string literal surrounded by double quotes
|
|
# line->read must start out at a double-quote
|
|
skip-string: # line: (addr stream byte)
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# . save registers
|
|
50/push-eax
|
|
51/push-ecx
|
|
52/push-edx
|
|
# ecx = line
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
|
|
# eax = skip-string-in-slice(&line->data[line->read], &line->data[line->write])
|
|
# . . push &line->data[line->write]
|
|
8b/copy 1/mod/*+disp8 1/rm32/ecx . . 2/r32/edx 8/disp8 . # copy *(ecx+8) to edx
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx 0xc/disp8 . # copy ecx+edx+12 to edx
|
|
52/push-edx
|
|
# . . push &line->data[line->read]
|
|
8b/copy 1/mod/*+disp8 1/rm32/ecx . . 2/r32/edx 4/disp8 . # copy *(ecx+4) to edx
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx 0xc/disp8 . # copy ecx+edx+12 to edx
|
|
52/push-edx
|
|
# . . call
|
|
e8/call skip-string-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# line->read = eax - line->data
|
|
29/subtract 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # subtract ecx from eax
|
|
2d/subtract-from-eax 0xc/imm32
|
|
89/copy 1/mod/*+disp8 1/rm32/ecx . . 0/r32/eax 4/disp8 . # copy eax to *(ecx+4)
|
|
$skip-string:end:
|
|
# . restore registers
|
|
5a/pop-to-edx
|
|
59/pop-to-ecx
|
|
58/pop-to-eax
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-string:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup
|
|
# . clear-stream(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call clear-stream/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# . write(_test-stream, "\"abc\" def")
|
|
# . indices: 0123 45
|
|
# . . push args
|
|
68/push "\"abc\" def"/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call write/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# precondition: line->read == 0
|
|
# . . push args
|
|
68/push "F - test-skip-string/precondition"/imm32
|
|
68/push 0/imm32
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# skip-string(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call skip-string/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# check-ints-equal(line->read, 5, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-string"/imm32
|
|
68/push 5/imm32
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-string-ignores-spaces:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup
|
|
# . clear-stream(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call clear-stream/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# . write(_test-stream, "\"a b\"/yz")
|
|
# . indices: 0123 45
|
|
# . . push args
|
|
68/push "\"a b\"/yz"/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call write/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# precondition: line->read == 0
|
|
# . . push args
|
|
68/push "F - test-skip-string-ignores-spaces/precondition"/imm32
|
|
68/push 0/imm32
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# skip-string(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call skip-string/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# check-ints-equal(line->read, 5, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-string-ignores-spaces"/imm32
|
|
68/push 5/imm32
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-string-ignores-escapes:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup
|
|
# . clear-stream(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call clear-stream/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# . write(_test-stream, "\"a\\\"b\"/yz")
|
|
# . indices: 01 2 34 56
|
|
# . . push args
|
|
68/push "\"a\\\"b\"/yz"/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call write/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# precondition: line->read == 0
|
|
# . . push args
|
|
68/push "F - test-skip-string-ignores-escapes/precondition"/imm32
|
|
68/push 0/imm32
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# skip-string(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call skip-string/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# check-ints-equal(line->read, 6, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-string-ignores-escapes"/imm32
|
|
68/push 6/imm32
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-string-works-from-mid-stream:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup
|
|
# . clear-stream(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call clear-stream/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# . write(_test-stream, "0 \"a\\\"b\"/yz")
|
|
# . indices: 01 2 34 56
|
|
# . . push args
|
|
68/push "0 \"a\\\"b\"/yz"/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call write/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# precondition: line->read == 2
|
|
b8/copy-to-eax _test-stream/imm32
|
|
c7 0/subop/copy 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 2/imm32 # copy to *(eax+4)
|
|
# skip-string(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call skip-string/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# check-ints-equal(line->read, 8, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-string-works-from-mid-stream"/imm32
|
|
68/push 8/imm32
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
skip-string-in-slice: # curr: (addr byte), end: (addr byte) -> curr/eax: (addr byte)
|
|
# . prologue
|
|
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
|
|
# ecx = curr
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
|
|
# edx = end
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
|
|
# var c/eax: byte = 0
|
|
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
|
|
# skip initial dquote
|
|
41/increment-ecx
|
|
$skip-string-in-slice:loop:
|
|
# if (curr >= end) return curr
|
|
39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx
|
|
73/jump-if-addr>= $skip-string-in-slice:return-curr/disp8
|
|
# c = *curr
|
|
8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 0/r32/AL . . # copy byte at *ecx to AL
|
|
$skip-string-in-slice:dquote:
|
|
# if (c == '"') break
|
|
3d/compare-eax-and 0x22/imm32/double-quote
|
|
74/jump-if-= $skip-string-in-slice:break/disp8
|
|
$skip-string-in-slice:check-for-escape:
|
|
# if (c == '\') escape next char
|
|
3d/compare-eax-and 0x5c/imm32/backslash
|
|
75/jump-if-!= $skip-string-in-slice:continue/disp8
|
|
$skip-string-in-slice:escape:
|
|
41/increment-ecx
|
|
$skip-string-in-slice:continue:
|
|
# ++curr
|
|
41/increment-ecx
|
|
eb/jump $skip-string-in-slice:loop/disp8
|
|
$skip-string-in-slice:break:
|
|
# skip final dquote
|
|
41/increment-ecx
|
|
$skip-string-in-slice:return-curr:
|
|
# return curr
|
|
89/copy 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # copy ecx to eax
|
|
$skip-string-in-slice:end:
|
|
# . restore registers
|
|
5b/pop-to-ebx
|
|
5a/pop-to-edx
|
|
59/pop-to-ecx
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-string-in-slice:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup: (eax..ecx) = "\"abc\" def"
|
|
b8/copy-to-eax "\"abc\" def"/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-string-in-slice(eax, ecx)
|
|
# . . push args
|
|
51/push-ecx
|
|
50/push-eax
|
|
# . . call
|
|
e8/call skip-string-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# check-ints-equal(ecx-eax, 4, msg) # number of chars remaining after the string literal
|
|
# . . push args
|
|
68/push "F - test-skip-string-in-slice"/imm32
|
|
68/push 4/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-string-in-slice-ignores-spaces:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup: (eax..ecx) = "\"a b\"/yz"
|
|
b8/copy-to-eax "\"a b\"/yz"/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-string-in-slice(eax, ecx)
|
|
# . . push args
|
|
51/push-ecx
|
|
50/push-eax
|
|
# . . call
|
|
e8/call skip-string-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# check-ints-equal(ecx-eax, 3, msg) # number of chars remaining after the string literal
|
|
# . . push args
|
|
68/push "F - test-skip-string-in-slice-ignores-spaces"/imm32
|
|
68/push 3/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-string-in-slice-ignores-escapes:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup: (eax..ecx) = "\"a\\\"b\"/yz"
|
|
b8/copy-to-eax "\"a\\\"b\"/yz"/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-string-in-slice(eax, ecx)
|
|
# . . push args
|
|
51/push-ecx
|
|
50/push-eax
|
|
# . . call
|
|
e8/call skip-string-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# check-ints-equal(ecx-eax, 3, msg) # number of chars remaining after the string literal
|
|
# . . push args
|
|
68/push "F - test-skip-string-in-slice-ignores-escapes"/imm32
|
|
68/push 3/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-string-in-slice-stops-at-end:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup: (eax..ecx) = "\"abc" # unbalanced dquote
|
|
b8/copy-to-eax "\"abc"/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-string-in-slice(eax, ecx)
|
|
# . . push args
|
|
51/push-ecx
|
|
50/push-eax
|
|
# . . call
|
|
e8/call skip-string-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# check-ints-equal(ecx-eax, 0, msg) # skipped to end of slice
|
|
# . . push args
|
|
68/push "F - test-skip-string-in-slice-stops-at-end"/imm32
|
|
68/push 0/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
# update line->read to ')'
|
|
# line->read ends at ')'
|
|
skip-until-close-paren: # line: (addr stream byte)
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# . save registers
|
|
50/push-eax
|
|
51/push-ecx
|
|
52/push-edx
|
|
# ecx = line
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
|
|
# eax = skip-until-close-paren-in-slice(&line->data[line->read], &line->data[line->write])
|
|
# . . push &line->data[line->write]
|
|
8b/copy 1/mod/*+disp8 1/rm32/ecx . . 2/r32/edx 8/disp8 . # copy *(ecx+8) to edx
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx 0xc/disp8 . # copy ecx+edx+12 to edx
|
|
52/push-edx
|
|
# . . push &line->data[line->read]
|
|
8b/copy 1/mod/*+disp8 1/rm32/ecx . . 2/r32/edx 4/disp8 . # copy *(ecx+4) to edx
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 2/index/edx . 2/r32/edx 0xc/disp8 . # copy ecx+edx+12 to edx
|
|
52/push-edx
|
|
# . . call
|
|
e8/call skip-until-close-paren-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# line->read = eax - line->data
|
|
29/subtract 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # subtract ecx from eax
|
|
2d/subtract-from-eax 0xc/imm32
|
|
89/copy 1/mod/*+disp8 1/rm32/ecx . . 0/r32/eax 4/disp8 . # copy eax to *(ecx+4)
|
|
$skip-until-close-paren:end:
|
|
# . restore registers
|
|
5a/pop-to-edx
|
|
59/pop-to-ecx
|
|
58/pop-to-eax
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-until-close-paren:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup
|
|
# . clear-stream(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call clear-stream/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# . write(_test-stream, "*(abc) def")
|
|
# . indices: 0123 45
|
|
# . . push args
|
|
68/push "*(abc) def"/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call write/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# precondition: line->read == 0
|
|
# . . push args
|
|
68/push "F - test-skip-until-close-paren/precondition"/imm32
|
|
68/push 0/imm32
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# skip-until-close-paren(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call skip-until-close-paren/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# check-ints-equal(line->read, 5, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-until-close-paren"/imm32
|
|
68/push 5/imm32
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-until-close-paren-ignores-spaces:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup
|
|
# . clear-stream(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call clear-stream/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# . write(_test-stream, "*(a b)/yz")
|
|
# . . push args
|
|
68/push "*(a b)/yz"/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call write/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# precondition: line->read == 0
|
|
# . . push args
|
|
68/push "F - test-skip-until-close-paren-ignores-spaces/precondition"/imm32
|
|
68/push 0/imm32
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# skip-until-close-paren(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call skip-until-close-paren/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# check-ints-equal(line->read, 5, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-until-close-paren-ignores-spaces"/imm32
|
|
68/push 5/imm32
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-until-close-paren-works-from-mid-stream:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup
|
|
# . clear-stream(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call clear-stream/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# . write(_test-stream, "0 *(a b)/yz")
|
|
# . . push args
|
|
68/push "0 *(a b)/yz"/imm32
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call write/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# precondition: _test-stream->read == 2
|
|
b8/copy-to-eax _test-stream/imm32
|
|
c7 0/subop/copy 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 2/imm32 # copy to *(eax+4)
|
|
# skip-until-close-paren(_test-stream)
|
|
# . . push args
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call skip-until-close-paren/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp
|
|
# check-ints-equal(_test-stream->read, 7, msg)
|
|
# . . push args
|
|
68/push "F - test-skip-until-close-paren-works-from-mid-stream"/imm32
|
|
68/push 7/imm32
|
|
b8/copy-to-eax _test-stream/imm32
|
|
ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 . # push *(eax+4)
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
skip-until-close-paren-in-slice: # curr: (addr byte), end: (addr byte) -> curr/eax: (addr byte)
|
|
# . prologue
|
|
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
|
|
# ecx = curr
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx
|
|
# edx = end
|
|
8b/copy 1/mod/*+disp8 5/rm32/ebp . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx
|
|
# var c/eax: byte = 0
|
|
31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax
|
|
# skip initial dquote
|
|
41/increment-ecx
|
|
$skip-until-close-paren-in-slice:loop:
|
|
# if (curr >= end) break
|
|
39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx
|
|
73/jump-if-addr>= $skip-until-close-paren-in-slice:break/disp8
|
|
# c = *curr
|
|
8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 0/r32/AL . . # copy byte at *ecx to AL
|
|
$skip-until-close-paren-in-slice:check-close:
|
|
# if (c == ')') break
|
|
3d/compare-eax-and 0x29/imm32/close-paren
|
|
74/jump-if-= $skip-until-close-paren-in-slice:break/disp8
|
|
# ++curr
|
|
41/increment-ecx
|
|
eb/jump $skip-until-close-paren-in-slice:loop/disp8
|
|
$skip-until-close-paren-in-slice:break:
|
|
# return curr
|
|
89/copy 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # copy ecx to eax
|
|
$skip-until-close-paren-in-slice:end:
|
|
# . restore registers
|
|
5a/pop-to-edx
|
|
59/pop-to-ecx
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-until-close-paren-in-slice:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup: (eax..ecx) = "*(abc) def"
|
|
b8/copy-to-eax "*(abc) def"/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-until-close-paren-in-slice(eax, ecx)
|
|
# . . push args
|
|
51/push-ecx
|
|
50/push-eax
|
|
# . . call
|
|
e8/call skip-until-close-paren-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# check-ints-equal(ecx-eax, 5, msg) # eax is at the ')'
|
|
# . . push args
|
|
68/push "F - test-skip-until-close-paren-in-slice"/imm32
|
|
68/push 5/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-until-close-paren-in-slice-ignores-spaces:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup: (eax..ecx) = "*(a b)/yz"
|
|
b8/copy-to-eax "*(a b)/yz"/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-until-close-paren-in-slice(eax, ecx)
|
|
# . . push args
|
|
51/push-ecx
|
|
50/push-eax
|
|
# . . call
|
|
e8/call skip-until-close-paren-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# check-ints-equal(ecx-eax, 4, msg) # eax is at the ')'
|
|
# . . push args
|
|
68/push "F - test-skip-until-close-paren-in-slice-ignores-spaces"/imm32
|
|
68/push 4/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
test-skip-until-close-paren-in-slice-stops-at-end:
|
|
# . prologue
|
|
55/push-ebp
|
|
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
|
|
# setup: (eax..ecx) = "*(abc" # unbalanced dquote
|
|
b8/copy-to-eax "*(abc"/imm32
|
|
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
|
|
05/add-to-eax 4/imm32
|
|
# eax = skip-until-close-paren-in-slice(eax, ecx)
|
|
# . . push args
|
|
51/push-ecx
|
|
50/push-eax
|
|
# . . call
|
|
e8/call skip-until-close-paren-in-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
|
|
# check-ints-equal(ecx-eax, 0, msg) # skipped to end of slice
|
|
# . . push args
|
|
68/push "F - test-skip-until-close-paren-in-slice-stops-at-end"/imm32
|
|
68/push 0/imm32
|
|
# . . push ecx-eax
|
|
29/subtract 3/mod/direct 1/rm32/ecx . . . 0/r32/eax . . # subtract eax from ecx
|
|
51/push-ecx
|
|
# . . call
|
|
e8/call check-ints-equal/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
|
|
# . epilogue
|
|
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
|
|
5d/pop-to-ebp
|
|
c3/return
|
|
|
|
# . . vim:nowrap:textwidth=0
|