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| author | Kartik Agaram <vc@akkartik.com> | 2020-01-16 18:31:12 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2020-01-16 18:31:12 -0800 |
| commit | 6070c23e5e1c60d3bb169e43bddfa59b1d322427 (patch) | |
| tree | 9a70e378c33c15e4779cf94abda8f37c35a5d1da /html/061read-byte.subx.html | |
| parent | 5a6601aba973ba1d1ef30b7b64438c25623b89c5 (diff) | |
| download | mu-6070c23e5e1c60d3bb169e43bddfa59b1d322427.tar.gz | |
5897 - rename comparison instructions
Signed and unsigned don't quite capture the essence of what the different combinations of x86 flags are doing for SubX. The crucial distinction is that one set of comparison operators is for integers and the second is for addresses.
Diffstat (limited to 'html/061read-byte.subx.html')
| -rw-r--r-- | html/061read-byte.subx.html | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/html/061read-byte.subx.html b/html/061read-byte.subx.html index 9416117f..0be60e25 100644 --- a/html/061read-byte.subx.html +++ b/html/061read-byte.subx.html @@ -110,7 +110,7 @@ if ('onhashchange' in window) { <span id="L48" class="LineNr"> 48 </span> 8b/copy 1/mod/*+disp8 6/rm32/esi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(esi+8) to ecx</span> <span id="L49" class="LineNr"> 49 </span> <span class="subxComment"># if (f->read >= f->write) populate stream from file</span> <span id="L50" class="LineNr"> 50 </span> 3b/compare 1/mod/*+disp8 6/rm32/esi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx 4/disp8 <span class="Normal"> . </span> <span class="subxComment"># compare ecx with *(esi+4)</span> -<span id="L51" class="LineNr"> 51 </span> 7c/jump-if-lesser $read-byte-buffered:from-stream/disp8 +<span id="L51" class="LineNr"> 51 </span> 7c/jump-if-< $read-byte-buffered:from-stream/disp8 <span id="L52" class="LineNr"> 52 </span> <span class="subxS1Comment"># . clear-stream(stream = f+4)</span> <span id="L53" class="LineNr"> 53 </span> <span class="subxS2Comment"># . . push args</span> <span id="L54" class="LineNr"> 54 </span> 8d/copy-address 1/mod/*+disp8 6/rm32/esi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/eax 4/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy esi+4 to eax</span> @@ -131,7 +131,7 @@ if ('onhashchange' in window) { <span id="L69" class="LineNr"> 69 </span> 81 0/subop/add 3/mod/direct 4/rm32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to esp</span> <span id="L70" class="LineNr"> 70 </span> <span class="subxComment"># if (eax == 0) return 0xffffffff</span> <span id="L71" class="LineNr"> 71 </span> 3d/compare-eax-and 0/imm32 -<span id="L72" class="LineNr"> 72 </span> 75/jump-if-not-equal $read-byte-buffered:from-stream/disp8 +<span id="L72" class="LineNr"> 72 </span> 75/jump-if-!= $read-byte-buffered:from-stream/disp8 <span id="L73" class="LineNr"> 73 </span> b8/copy-to-eax 0xffffffff/imm32/Eof <span id="L74" class="LineNr"> 74 </span> eb/jump $read-byte-buffered:end/disp8 <span id="L75" class="LineNr"> 75 </span><span class="Constant">$read-byte-buffered:from-stream</span>: |