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| author | Kartik Agaram <vc@akkartik.com> | 2019-03-23 10:47:41 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2019-03-23 10:47:41 -0700 |
| commit | c00d2ae47e9c8602ccf5749191a043bcef0bdbf5 (patch) | |
| tree | 7589f5dbf817ec9092ddfb94f1a60d4c28f0c4ff /subx | |
| parent | cc5f4816b5397bf25fe583e6f104a1ee7347132c (diff) | |
| download | mu-c00d2ae47e9c8602ccf5749191a043bcef0bdbf5.tar.gz | |
5020
Diffstat (limited to 'subx')
| -rwxr-xr-x | subx/apps/pack | bin | 22707 -> 22776 bytes | |||
| -rw-r--r-- | subx/apps/pack.subx | 47 |
2 files changed, 45 insertions, 2 deletions
diff --git a/subx/apps/pack b/subx/apps/pack index 2123672a..a49a91ab 100755 --- a/subx/apps/pack +++ b/subx/apps/pack Binary files differdiff --git a/subx/apps/pack.subx b/subx/apps/pack.subx index 44d4c5c8..bab60dbc 100644 --- a/subx/apps/pack.subx +++ b/subx/apps/pack.subx @@ -23,7 +23,7 @@ Entry: # run tests if necessary, convert stdin if not #? # for debugging: run a single test -#? e8/call test-convert-data-passes-names-through/disp32 +#? e8/call test-convert-data-passes-labels-through/disp32 #? 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/EBX Num-test-failures/disp32 # copy *Num-test-failures to EBX #? eb/jump $main:end/disp8 @@ -479,7 +479,8 @@ convert-data: # line : (address stream byte), out : (address buffered-file) -> # pseudocode: # while true # word-slice = next-word - # if (line->write == 0) break # end of file + # if slice-empty?(word-slice) # whitespace + # write-stream-buffered(out, line) # if slice-starts-with?(word-slice, "#") # comment # write-stream-buffered(out, line) # else if slice-ends-with?(word-slice, ":") # label @@ -509,6 +510,48 @@ convert-data: # line : (address stream byte), out : (address buffered-file) -> e8/call next-word/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP +$convert-data:check0: + # if (slice-empty?(word-slice)) write-stream-buffered(out, line) + # . EAX = slice-empty?(word-slice) + # . . push args + 51/push-ECX + # . . call + e8/call slice-empty?/disp32 + # . . discard args + 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP + # . if (EAX != 0) pass through + 3d/compare-EAX 0/imm32 + 75/jump-if-not-equal $convert-data:pass-line-through/disp8 +$convert-data:check1: + # if (slice-starts-with?(word-slice, "#")) write-stream-buffered(out, line) + # . start/EDX = word-slice->start + 8b/copy 0/mod/indirect 1/rm32/ECX . . . 2/r32/EDX . . # copy *ECX to EDX + # . c/EAX = *start + 31/xor 3/mod/direct 0/rm32/EAX . . . 0/r32/EAX . . # clear EAX + 8a/copy-byte 0/mod/indirect 2/rm32/EDX . . . 0/r32/AL . . # copy byte at *EDX to AL + # . if (EAX == '#') pass through + 3d/compare-with-EAX 0x23/imm32/hash + 74/jump-if-equal $convert-data:pass-line-through/disp8 +$convert-data:check2: + # if (slice-ends-with?(word-slice, ":")) write-stream-buffered(out, line) + # . end/EDX = word-slice->end + 8b/copy 1/mod/*+disp8 1/rm32/ECX . . . 2/r32/EDX 4/disp8 . # copy *(ECX+4) to EDX + # . c/EAX = *(end-1) + 31/xor 3/mod/direct 0/rm32/EAX . . . 0/r32/EAX . . # clear EAX + 8a/copy-byte 1/mod/*+disp8 2/rm32/EDX . . . 0/r32/AL -1/disp8 . # copy byte at *ECX to AL + # . if (EAX == ':') pass through + 3d/compare-with-EAX 0x3a/imm32/colon + 74/jump-if-equal $convert-data:pass-line-through/disp8 + # emit(out, word-slice, 4) # temporary + # . . push args + 68/push 4/imm32 # should be unused + 51/push-ECX + ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12) + # . . call + e8/call emit/disp32 + # . . discard args + 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP + eb/jump $convert-data:end/disp8 $convert-data:pass-line-through: # write-stream-buffered(out, line) # . . push args |