# Some tokenization primitives.
== code
# instruction effective address register displacement immediate
# . op subop mod rm32 base index scale r32
# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
# extract the next run of characters that are different from a given 'delimiter' (skipping multiple delimiters if necessary)
# on reaching end of file, return an empty interval
next-token: # in : (address stream), delimiter : byte, out : (address slice)
# . prolog
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
56/push-esi
57/push-edi
# esi = in
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi
# edi = out
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 0x10/disp8 . # copy *(ebp+16) to edi
# skip-chars-matching(in, delimiter)
# . . push args
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0xc/disp8 . # push *(ebp+12)
56/push-esi
# . . call
e8/call skip-chars-matching/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp
# out->start = &in->data[in->read]
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/eax 0xc/disp8 . # copy esi+ecx+12 to eax
89/copy 0/mod/indirect 7/rm32/edi . . . 0/r32/eax . . # copy eax to *edi
# skip-chars-not-matching(in, delimiter)
# . . push args
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0xc/disp8 . # push *(ebp+12)
56/push-esi
# . . 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
# out->end = &in->data[in->read]
8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx
8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/eax 0xc/disp8 . # copy esi+ecx+12 to eax
89/copy 1/mod/*+disp8 7/rm32/edi . . . 0/r32/eax 4/disp8 . # copy eax to *(edi+4)
# . restore registers
5f/pop-to-edi
5e/pop-to-esi
59/pop-to-ecx
58/pop-to-eax
# . epilog
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-next-token:
# . prolog
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
# var slice/ecx = {0, 0}
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# 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
# next-token(_test-stream, 0x20/space, slice)
# . . push args
51/push-ecx
68/push 0x20/imm32
68/push _test-stream/imm32
# . . call
e8/call next-token/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# check-ints-equal(slice->start - _test-stream->data, 2, msg)
# . check-ints-equal(slice->start - _test-stream, 14, msg)
# . . push args
68/push "F - test-next-token: start"/imm32
68/push 0xe/imm32
# . . push slice->start - _test-stream
8b/copy 0/mod/indirect 1/rm32/ecx . . . 0/r32/eax . . # copy *ecx to eax
81 5/subop/subtract 3/mod/direct 0/rm32/eax . . . . . _test-stream/imm32 # subtract from eax
50/push-eax
# . . call
e8/call check-ints-equal/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# check-ints-equal(slice->end - _test-stream->data, 4, msg)
# . check-ints-equal(slice->end - _test-stream, 16, msg)
# . . push args
68/push "F - test-next-token: end"/imm32
68/push 0x10/imm32
# . . push slice->end - _test-stream
8b/copy 1/mod/*+disp8 1/rm32/ecx . . . 0/r32/eax 4/disp8 . # copy *(ecx+4) to eax
81 5/subop/subtract 3/mod/direct 0/rm32/eax . . . . . _test-stream/imm32 # subtract from eax
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-next-token-Eof:
# . prolog
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
# var slice/ecx = {0, 0}
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx
# write nothing to _test-stream
# next-token(_test-stream, 0x20/space, slice)
# . . push args
51/push-ecx
68/push 0x20/imm32
68/push _test-stream/imm32
# . . call
e8/call next-token/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# check-ints-equal(slice->end, slice->start, msg)
# . . push args
68/push "F - test-next-token-Eof"/imm32
ff 6/subop/push 1/mod/*+disp8 1/rm32/ecx . . . . 4/disp8 . # push *(ecx+4)
ff 6/subop/push 0/mod/indirect 1/rm32/ecx . . . . . . # 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
# . epilog
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
# extract the next run of characters that are different from a given 'delimiter' (skipping multiple delimiters if necessary)
# on reaching end of file, return an empty interval
next-token-from-slice: # start : (address byte), end : (address byte), delimiter : byte, out : (address slice) -> <void>
# . prolog
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
57/push-edi
# 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
# edi = out
8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 0x14/disp8 . # copy *(ebp+20) to edi
# eax = skip-chars-matching-in-slice(start, end, delimiter)
# . . push args
52/push-edx
51/push-ecx
ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8)
# . . 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
# out->start = eax
89/copy 0/mod/indirect 7/rm32/edi . . . 0/r32/eax . . # copy eax to *edi
# eax = skip-chars-not-matching-in-slice(eax, end, delimiter)
# . . push args
52/push-edx
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
# out->end = eax
89/copy 1/mod/*+disp8 7/rm32/edi . . . 0/r32/eax 4/disp8 . # copy eax to *(edi+4)
# . restore registers
5f/pop-to-edi
5a/pop-to-edx
59/pop-to-ecx
58/pop-to-eax
# . epilog
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-next-token-from-slice:
# . prolog
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# (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
# var out/edi : (address slice) = {0, 0}
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
# next-token-from-slice(eax, ecx, 0x20/space, out)
# . . push args
57/push-edi
68/push 0x20/imm32
51/push-ecx
50/push-eax
# . . call
e8/call next-token-from-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # add to esp
# out->start should be at the 'a'
# . check-ints-equal(out->start - in->start, 2, msg)
# . . push args
68/push "F - test-next-token-from-slice: start"/imm32
68/push 2/imm32
# . . push out->start - in->start
8b/copy 0/mod/indirect 7/rm32/edi . . . 1/r32/ecx . . # copy *edi to ecx
2b/subtract 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # 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
# out->end should be after the 'b'
# check-ints-equal(out->end - in->start, 4, msg)
# . . push args
68/push "F - test-next-token-from-slice: end"/imm32
68/push 4/imm32
# . . push out->end - in->start
8b/copy 1/mod/*+disp8 7/rm32/edi . . . 1/r32/ecx 4/disp8 . # copy *(edi+4) to ecx
2b/subtract 3/mod/direct 0/rm32/eax . . . 1/r32/ecx . . # 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
# . epilog
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-next-token-from-slice-Eof:
# . prolog
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# var out/edi : (address slice) = {0, 0}
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
# next-token-from-slice(0, 0, 0x20/space, out)
# . . push args
57/push-edi
68/push 0x20/imm32
68/push 0/imm32
68/push 0/imm32
# . . call
e8/call next-token-from-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # add to esp
# out should be empty
# . check-ints-equal(out->end - out->start, 0, msg)
# . . push args
68/push "F - test-next-token-from-slice-Eof"/imm32
68/push 0/imm32
# . . push out->start - in->start
8b/copy 1/mod/*+disp8 7/rm32/edi . . . 1/r32/ecx 4/disp8 . # copy *(edi+4) to ecx
2b/subtract 0/mod/indirect 7/rm32/edi . . . 1/r32/ecx . . # subtract *edi 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
# . epilog
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-next-token-from-slice-nothing:
# . prolog
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# (eax..ecx) = " "
b8/copy-to-eax " "/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
# var out/edi : (address slice) = {0, 0}
68/push 0/imm32/end
68/push 0/imm32/start
89/copy 3/mod/direct 7/rm32/edi . . . 4/r32/esp . . # copy esp to edi
# next-token-from-slice(in, 0x20/space, out)
# . . push args
57/push-edi
68/push 0x20/imm32
51/push-ecx
50/push-eax
# . . call
e8/call next-token-from-slice/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0x10/imm32 # add to esp
# out should be empty
# . check-ints-equal(out->end - out->start, 0, msg)
# . . push args
68/push "F - test-next-token-from-slice-Eof"/imm32
68/push 0/imm32
# . . push out->start - in->start
8b/copy 1/mod/*+disp8 7/rm32/edi . . . 1/r32/ecx 4/disp8 . # copy *(edi+4) to ecx
2b/subtract 0/mod/indirect 7/rm32/edi . . . 1/r32/ecx . . # subtract *edi 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
# . epilog
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
skip-chars-matching: # in : (address stream), delimiter : byte
# . prolog
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-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-greater-or-equal $skip-chars-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
75/jump-if-not-equal $skip-chars-matching:end/disp8
# ++in->read
41/increment-ecx
eb/jump $skip-chars-matching:loop/disp8
$skip-chars-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
# . epilog
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:
# 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-matching(_test-stream, 0x20/space)
# . . push args
68/push 0x20/imm32
68/push _test-stream/imm32
# . . call
e8/call skip-chars-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-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-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-matching(_test-stream, 0x20/space)
# . . push args
68/push 0x20/imm32
68/push _test-stream/imm32
# . . call
e8/call skip-chars-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-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
skip-chars-matching-whitespace: # in : (address stream)
# . prolog
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-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-greater-or-equal $skip-chars-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 == ' ') goto body
3d/compare-eax-and 0x20/imm32/space
74/jump-if-equal $skip-chars-matching-whitespace:body/disp8
# if (eax == '\n') goto body
3d/compare-eax-and 0x0a/imm32/newline
74/jump-if-equal $skip-chars-matching-whitespace:body/disp8
# if (eax == '\t') goto body
3d/compare-eax-and 0x09/imm32/tab
74/jump-if-equal $skip-chars-matching-whitespace:body/disp8
# if (eax != '\r') break
3d/compare-eax-and 0x0d/imm32/cr
75/jump-if-not-equal $skip-chars-matching-whitespace:end/disp8
$skip-chars-matching-whitespace:body:
# ++in->read
41/increment-ecx
eb/jump $skip-chars-matching-whitespace:loop/disp8
$skip-chars-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
# . epilog
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:
# 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, " \nab")
# . . push args
68/push " \nab"/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-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 : (address stream), delimiter : byte
# . prolog
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-greater-or-equal $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-equal $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
# . epilog
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 : (address stream)
# . prolog
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-greater-or-equal $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-equal $skip-chars-not-matching-whitespace:end/disp8
# if (eax == '\n') break
3d/compare-eax-and 0x0a/imm32/newline
74/jump-if-equal $skip-chars-not-matching-whitespace:end/disp8
# if (eax == '\t') break
3d/compare-eax-and 0x09/imm32/tab
74/jump-if-equal $skip-chars-not-matching-whitespace:end/disp8
# if (eax == '\r') break
3d/compare-eax-and 0x0d/imm32/cr
74/jump-if-equal $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
# . epilog
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 : (address byte), end : (address byte), delimiter : byte -> curr/eax
# . 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
# 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
# ebx = 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-greater-or-equal-unsigned $skip-chars-matching-in-slice:end/disp8
# if (*curr != delimiter) break
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
39/compare 3/mod/direct 3/rm32/ebx . . . 2/r32/edx . . # compare ebx and edx
75/jump-if-not-equal $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
# . epilog
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: # in : (address stream)
# . prolog
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
# ebx = 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-greater-or-equal-unsigned $skip-chars-matching-in-slice:end/disp32
# ebx = *curr
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
# if (*curr == ' ') goto body
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x20/imm32/space # compare ebx
74/jump-if-equal $skip-chars-matching-whitespace-in-slice:body/disp8
# if (*curr == '\n') goto body
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0a/imm32/newline # compare ebx
74/jump-if-equal $skip-chars-matching-whitespace-in-slice:body/disp8
# if (*curr == '\t') goto body
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x09/imm32/tab # compare ebx
74/jump-if-equal $skip-chars-matching-whitespace-in-slice:body/disp8
# if (*curr != '\r') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0d/imm32/cr # compare ebx
75/jump-if-not-equal $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
# . epilog
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 : (address byte), end : (address byte), delimiter : byte -> curr/eax
# . 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
# 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
# ebx = 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-greater-or-equal-unsigned $skip-chars-not-matching-in-slice:end/disp8
# if (*curr == delimiter) break
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
39/compare 3/mod/direct 3/rm32/ebx . . . 2/r32/edx . . # compare ebx and edx
74/jump-if-equal $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
# . epilog
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: # in : (address stream)
# . prolog
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
# ebx = 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-greater-or-equal-unsigned $skip-chars-not-matching-in-slice:end/disp32
# ebx = *curr
8a/copy-byte 0/mod/indirect 0/rm32/eax . . . 3/r32/BL . . # copy byte at *eax to BL
# if (*curr == ' ') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x20/imm32/space # compare ebx
74/jump-if-equal $skip-chars-not-matching-whitespace-in-slice:end/disp8
# if (*curr == '\n') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0a/imm32/newline # compare ebx
74/jump-if-equal $skip-chars-not-matching-whitespace-in-slice:end/disp8
# if (*curr == '\t') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x09/imm32/tab # compare ebx
74/jump-if-equal $skip-chars-not-matching-whitespace-in-slice:end/disp8
# if (*curr == '\r') break
81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x0d/imm32/cr # compare ebx
74/jump-if-equal $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
# . epilog
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 : (address stream)
# . prolog
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
# . epilog
89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp
5d/pop-to-ebp
c3/return
test-skip-string:
# . prolog
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-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-input-stream, "\"abc\" def")
# . indices: 0123 45
# . . push args
68/push "\"abc\" def"/imm32
68/push _test-input-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-input-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-input-stream)
# . . push args
68/push _test-input-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-input-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
# . epilog
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:
# . prolog
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-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-input-stream, "\"a b\"/yz")
# . indices: 0123 45
# . . push args
68/push "\"a b\"/yz"/imm32
68/push _test-input-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-input-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-input-stream)
# . . push args
68/push _test-input-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-input-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
# . epilog
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:
# . prolog
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-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-input-stream, "\"a\\\"b\"/yz")
# . indices: 01 2 34 56
# . . push args
68/push "\"a\\\"b\"/yz"/imm32
68/push _test-input-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-input-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-input-stream)
# . . push args
68/push _test-input-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-input-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
# . epilog
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:
# . prolog
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-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-input-stream, "0 \"a\\\"b\"/yz")
# . indices: 01 2 34 56
# . . push args
68/push "0 \"a\\\"b\"/yz"/imm32
68/push _test-input-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-input-stream/imm32
c7 0/subop/copy 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 2/imm32 # copy to *(eax+4)
# skip-string(_test-input-stream)
# . . push args
68/push _test-input-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-input-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
# . epilog
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 : (address byte), end : (address byte) -> new_curr/eax
# . 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
# 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
# eax = 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-greater-unsigned-or-equal $skip-string-in-slice:return-curr/disp8
# AL = *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 (eax == '"') break
3d/compare-eax-and 0x22/imm32/double-quote
74/jump-if-equal $skip-string-in-slice:break/disp8
$skip-string-in-slice:check-for-escape:
# if (eax == '\') escape next char
3d/compare-eax-and 0x5c/imm32/backslash
75/jump-if-not-equal $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
# . epilog
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:
# . prolog
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
# . epilog
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:
# . prolog
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
# . epilog
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:
# . prolog
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
# . epilog
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:
# . prolog
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
# . epilog
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 : (address stream)
# . prolog
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
# . epilog
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:
# . prolog
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-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-input-stream, "*(abc) def")
# . indices: 0123 45
# . . push args
68/push "*(abc) def"/imm32
68/push _test-input-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-input-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-input-stream)
# . . push args
68/push _test-input-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-input-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
# . epilog
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:
# . prolog
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-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-input-stream, "*(a b)/yz")
# . . push args
68/push "*(a b)/yz"/imm32
68/push _test-input-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-input-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-input-stream)
# . . push args
68/push _test-input-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-input-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
# . epilog
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:
# . prolog
55/push-ebp
89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp
# setup
# . clear-stream(_test-input-stream)
# . . push args
68/push _test-input-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-input-stream, "0 *(a b)/yz")
# . . push args
68/push "0 *(a b)/yz"/imm32
68/push _test-input-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-input-stream->read == 2
b8/copy-to-eax _test-input-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-input-stream)
# . . push args
68/push _test-input-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-input-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-input-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
# . epilog
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 : (address byte), end : (address byte) -> new_curr/eax
# . 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
# 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
# eax = 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-greater-unsigned-or-equal $skip-until-close-paren-in-slice:break/disp8
# AL = *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 (eax == ')') break
3d/compare-eax-and 0x29/imm32/close-paren
74/jump-if-equal $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
# . epilog
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:
# . prolog
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
# . epilog
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:
# . prolog
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
# . epilog
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:
# . prolog
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
# . epilog
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