diff options
Diffstat (limited to '129emit-hex.subx')
| -rw-r--r-- | 129emit-hex.subx | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/129emit-hex.subx b/129emit-hex.subx deleted file mode 100644 index d8869956..00000000 --- a/129emit-hex.subx +++ /dev/null @@ -1,241 +0,0 @@ -== 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 - -# print 'n' in hex in 'width' bytes in lower-endian order, with a space after every byte -emit-hex: # out: (addr buffered-file), n: int, width: int - # . prologue - 55/push-ebp - 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp - # . save registers - 50/push-eax - 51/push-ecx - 52/push-edx - 53/push-ebx - 57/push-edi - # edi = out - 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 8/disp8 . # copy *(ebp+8) to edi - # ebx = n - 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 3/r32/ebx 0xc/disp8 . # copy *(ebp+12) to ebx - # edx = width - 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0x10/disp8 . # copy *(ebp+16) to edx - # var curr/ecx: int = 0 - 31/xor 3/mod/direct 1/rm32/ecx . . . 1/r32/ecx . . # clear ecx -$emit-hex:loop: - # if (curr >= width) break - 39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx - 7d/jump-if->= $emit-hex:end/disp8 - # write-byte-hex-buffered(out, ebx) # only BL used - # . . push args - 53/push-ebx - 57/push-edi - # . . call - e8/call write-byte-hex-buffered/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp - # write-byte-buffered(out, ' ') - # . . push args - 68/push 0x20/imm32/space - 57/push-edi - # . . call - e8/call write-byte-buffered/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp - # ebx = ebx >> 8 - c1/shift 5/subop/logic-right 3/mod/direct 3/rm32/ebx . . . . . 8/imm8 # shift ebx right by 8 bits, while padding zeroes -$emit-hex:continue: - # ++curr - 41/increment-ecx - eb/jump $emit-hex:loop/disp8 -$emit-hex:end: - # . restore registers - 5f/pop-to-edi - 5b/pop-to-ebx - 5a/pop-to-edx - 59/pop-to-ecx - 58/pop-to-eax - # . epilogue - 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp - 5d/pop-to-ebp - c3/return - -test-emit-hex-single-byte: - # setup - # . clear-stream(_test-output-stream) - # . . push args - 68/push _test-output-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 - # . clear-stream($_test-output-buffered-file->buffer) - # . . push args - 68/push $_test-output-buffered-file->buffer/imm32 - # . . call - e8/call clear-stream/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # emit-hex(_test-output-buffered-file, 0xab, 1) - # . . push args - 68/push 1/imm32 - 68/push 0xab/imm32 - 68/push _test-output-buffered-file/imm32 - # . . call - e8/call emit-hex/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp - # flush(_test-output-buffered-file) - # . . push args - 68/push _test-output-buffered-file/imm32 - # . . call - e8/call flush/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # check-ints-equal(*_test-output-stream->data, 'ab ', msg) - # . . push args - 68/push "F - test-emit-hex-single-byte"/imm32 - 68/push 0x206261/imm32 - # . . push *_test-output-stream->data - b8/copy-to-eax _test-output-stream/imm32 - ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 0xc/disp8 . # push *(eax+12) - # . . call - e8/call check-ints-equal/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp - # . end - c3/return - -test-emit-hex-multiple-byte: - # setup - # . clear-stream(_test-output-stream) - # . . push args - 68/push _test-output-stream/imm32 - # . . call - e8/call clear-stream/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # . clear-stream($_test-output-buffered-file->buffer) - # . . push args - 68/push $_test-output-buffered-file->buffer/imm32 - # . . call - e8/call clear-stream/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # emit-hex(_test-output-buffered-file, 0x1234, 2) - # . . push args - 68/push 2/imm32 - 68/push 0x1234/imm32 - 68/push _test-output-buffered-file/imm32 - # . . call - e8/call emit-hex/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp - # flush(_test-output-buffered-file) - # . . push args - 68/push _test-output-buffered-file/imm32 - # . . call - e8/call flush/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # check-stream-equal(_test-output-stream, "34 12 ", msg) - # . . push args - 68/push "F - test-emit-hex-multiple-byte/1"/imm32 - 68/push "34 12 "/imm32 - 68/push _test-output-stream/imm32 - # . . call - e8/call check-stream-equal/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp - # . end - c3/return - -test-emit-hex-zero-pad: - # setup - # . clear-stream(_test-output-stream) - # . . push args - 68/push _test-output-stream/imm32 - # . . call - e8/call clear-stream/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # . clear-stream($_test-output-buffered-file->buffer) - # . . push args - 68/push $_test-output-buffered-file->buffer/imm32 - # . . call - e8/call clear-stream/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # emit-hex(_test-output-buffered-file, 0xab, 2) - # . . push args - 68/push 2/imm32 - 68/push 0xab/imm32 - 68/push _test-output-buffered-file/imm32 - # . . call - e8/call emit-hex/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp - # flush(_test-output-buffered-file) - # . . push args - 68/push _test-output-buffered-file/imm32 - # . . call - e8/call flush/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # check(_test-output-stream->data == 'ab 00 ') - # . . push args - 68/push "F - test-emit-hex-zero-pad/1"/imm32 - 68/push "ab 00 "/imm32 - 68/push _test-output-stream/imm32 - # . . call - e8/call check-stream-equal/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp - # . end - c3/return - -test-emit-hex-negative: - # setup - # . clear-stream(_test-output-stream) - # . . push args - 68/push _test-output-stream/imm32 - # . . call - e8/call clear-stream/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # . clear-stream($_test-output-buffered-file->buffer) - # . . push args - 68/push $_test-output-buffered-file->buffer/imm32 - # . . call - e8/call clear-stream/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # emit-hex(_test-output-buffered-file, -1, 2) - # . . push args - 68/push 2/imm32 - 68/push -1/imm32 - 68/push _test-output-buffered-file/imm32 - # . . call - e8/call emit-hex/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp - # flush(_test-output-buffered-file) - # . . push args - 68/push _test-output-buffered-file/imm32 - # . . call - e8/call flush/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # check-stream-equal(_test-output-stream == "ff ff ") - # . . push args - 68/push "F - test-emit-hex-negative/1"/imm32 - 68/push "ff ff "/imm32 - 68/push _test-output-stream/imm32 - # . . call - e8/call check-stream-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 |