diff options
Diffstat (limited to '117write-int-hex.subx')
| -rw-r--r-- | 117write-int-hex.subx | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/117write-int-hex.subx b/117write-int-hex.subx index 445ca2e9..091bd874 100644 --- a/117write-int-hex.subx +++ b/117write-int-hex.subx @@ -89,92 +89,6 @@ test-append-byte-hex: # . end c3/return -# print the hex representation for the lowest byte of a number -write-byte-hex-buffered: # f: (addr buffered-file), n: 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 - # AL = convert upper nibble to hex - 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 0xc/disp8 . # copy *(ebp+12) to eax - c1/shift 5/subop/logic-right 3/mod/direct 0/rm32/eax . . . . . 4/imm8 # shift eax right by 4 bits, while padding zeroes - 25/and-eax 0xf/imm32 - # . AL = to-hex-char(AL) - e8/call to-hex-char/disp32 - # write-byte-buffered(f, AL) - # . . push args - 50/push-eax - ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8) - # . . call - e8/call write-byte-buffered/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp - # AL = convert lower nibble to hex - 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 0xc/disp8 . # copy *(ebp+12) to eax - 25/and-eax 0xf/imm32 - # . AL = to-hex-char(AL) - e8/call to-hex-char/disp32 - # write-byte-buffered(f, AL) - # . . push args - 50/push-eax - ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8) - # . . call - e8/call write-byte-buffered/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp -$write-byte-hex-buffered:end: - # . restore registers - 58/pop-to-eax - # . epilogue - 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp - 5d/pop-to-ebp - c3/return - -test-write-byte-hex-buffered: - # - check that write-byte-hex-buffered prints the hex textual representation - # setup - # . clear-stream(_test-stream) - # . . push args - 68/push _test-stream/imm32 - # . . call - e8/call clear-stream/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # . clear-stream($_test-buffered-file->buffer) - # . . push args - 68/push $_test-buffered-file->buffer/imm32 - # . . call - e8/call clear-stream/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # write-byte-hex-buffered(_test-buffered-file, 0xa) # exercises digit, non-digit as well as leading zero - # . . push args - 68/push 0xa/imm32 - 68/push _test-buffered-file/imm32 - # . . call - e8/call write-byte-hex-buffered/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp - # flush(_test-buffered-file) - # . . push args - 68/push _test-buffered-file/imm32 - # . . call - e8/call flush/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # check-stream-equal(_test-stream, "0a", msg) - # . . push args - 68/push "F - test-write-byte-hex-buffered"/imm32 - 68/push "0a"/imm32 - 68/push _test-stream/imm32 - # . . call - e8/call check-stream-equal/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp - # . end - c3/return - write-int32-hex: # f: (addr stream byte), n: int # . prologue 55/push-ebp @@ -285,146 +199,4 @@ test-write-int32-hex: # . end c3/return -write-int32-hex-buffered: # f: (addr buffered-file), n: int - # . prologue - 55/push-ebp - 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp -$write-int32-hex-buffered:hex-prefix: - # write-buffered(f, "0x") - # . . push args - 68/push "0x"/imm32 - ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8) - # . . call - e8/call write-buffered/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp -$write-int32-hex-buffered:rest: - # write-int32-hex-bits-buffered(f, n, 32) - # . . push args - 68/push 0x20/imm32 - ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0xc/disp8 . # push *(ebp+12) - ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8) - # . . call - e8/call write-int32-hex-bits-buffered/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp -$write-int32-hex-buffered:end: - # . epilogue - 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp - 5d/pop-to-ebp - c3/return - -# print rightmost 'bits' of 'n' -# bits must be multiple of 4 -write-int32-hex-bits-buffered: # f: (addr buffered-file), n: int, bits: int - # pseudocode: - # bits -= 4 - # while true - # if (bits < 0) break - # eax = n >> bits - # eax = eax & 0xf - # write-byte-buffered(f, AL) - # bits -= 4 - # - # . 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 - # ecx = bits-4 - 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0x10/disp8 . # copy *(ebp+16) to ecx - 81 5/subop/subtract 3/mod/direct 1/rm32/ecx . . . . . 4/imm32 # subtract from ecx -$write-int32-hex-bits-buffered:loop: - # if (bits < 0) break - 81 7/subop/compare 3/mod/direct 1/rm32/ecx . . . . . 0/imm32 # compare ecx - 7c/jump-if-< $write-int32-hex-bits-buffered:end/disp8 - # eax = n >> bits - 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 0xc/disp8 . # copy *(ebp+12) to eax - d3/>>ecx 5/subop/pad-zeroes 3/mod/direct 0/rm32/eax . . . . . . # shift eax right by ecx bits, padding zeroes - # eax = to-hex-char(AL) - 25/and-eax 0xf/imm32 - e8/call to-hex-char/disp32 - # write-byte-buffered(f, AL) - # . . push args - 50/push-eax - ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8) - # . . call - e8/call write-byte-buffered/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp - # bits -= 4 - 81 5/subop/subtract 3/mod/direct 1/rm32/ecx . . . . . 4/imm32 # subtract from ecx - eb/jump $write-int32-hex-bits-buffered:loop/disp8 -$write-int32-hex-bits-buffered:end: - # . restore registers - 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-write-int32-hex-buffered: - # - check that write-int32-hex-buffered prints the hex textual representation - # 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 - # . clear-stream($_test-buffered-file->buffer) - # . . push args - 68/push $_test-buffered-file->buffer/imm32 - # . . call - e8/call clear-stream/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp - # write-int32-hex-buffered(_test-buffered-file, 0x8899aa) - # . . push args - 68/push 0x8899aa/imm32 - 68/push _test-buffered-file/imm32 - # . . call - e8/call write-int32-hex-buffered/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp - # flush(_test-buffered-file) - # . . push args - 68/push _test-buffered-file/imm32 - # . . call - e8/call flush/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp -#? # dump line {{{ -#? # . write-stream(2/stderr, line) -#? # . . push args -#? 68/push _test-stream/imm32 -#? 68/push 2/imm32/stderr -#? # . . call -#? e8/call write-stream/disp32 -#? # . . discard args -#? 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp -#? # . write(2/stderr, "$\n") -#? # . . push args -#? 68/push "$\n"/imm32 -#? 68/push 2/imm32/stderr -#? # . . call -#? e8/call write/disp32 -#? # . . discard args -#? 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp -#? # }}} - # check-stream-equal(_test-stream, "0x008899aa", msg) - # . . push args - 68/push "F - test-write-int32-hex-buffered"/imm32 - 68/push "0x008899aa"/imm32 - 68/push _test-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 |