From 6e1eeeebfb453fa7c871869c19375ce60fbd7413 Mon Sep 17 00:00:00 2001 From: Kartik Agaram Date: Sat, 27 Jul 2019 16:01:55 -0700 Subject: 5485 - promote SubX to top-level --- subx/073next-token.subx | 897 ------------------------------------------------ 1 file changed, 897 deletions(-) delete mode 100644 subx/073next-token.subx (limited to 'subx/073next-token.subx') diff --git a/subx/073next-token.subx b/subx/073next-token.subx deleted file mode 100644 index 942d9878..00000000 --- a/subx/073next-token.subx +++ /dev/null @@ -1,897 +0,0 @@ -# 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) -> - # . 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 - -# 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 - -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 - -# 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 - -# . . vim:nowrap:textwidth=0 -- cgit 1.4.1-2-gfad0