diff options
| 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/apps/ex11.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/apps/ex11.subx.html')
| -rw-r--r-- | html/apps/ex11.subx.html | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/html/apps/ex11.subx.html b/html/apps/ex11.subx.html index 84519e0e..d9c64f2a 100644 --- a/html/apps/ex11.subx.html +++ b/html/apps/ex11.subx.html @@ -135,17 +135,17 @@ if ('onhashchange' in window) { <span id="L73" class="LineNr"> 73 </span><span class="Constant">$kernel-string-equal?:loop</span>: <span id="L74" class="LineNr"> 74 </span> <span class="subxComment"># if (i >= n) break</span> <span id="L75" class="LineNr"> 75 </span> 39/compare 3/mod/direct 1/rm32/ecx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/edx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare ecx with edx</span> -<span id="L76" class="LineNr"> 76 </span> 7d/jump-if-greater-or-equal $kernel-string-equal?:<span class="Constant">break</span>/disp8 +<span id="L76" class="LineNr"> 76 </span> 7d/jump-if->= $kernel-string-equal?:<span class="Constant">break</span>/disp8 <span id="L77" class="LineNr"> 77 </span> <span class="subxComment"># c1 = *s1</span> <span id="L78" class="LineNr"> 78 </span> 8a/copy-byte 0/mod/indirect 7/rm32/edi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/AL <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy byte at *edi to AL</span> <span id="L79" class="LineNr"> 79 </span> <span class="subxComment"># c2 = *s2</span> <span id="L80" class="LineNr"> 80 </span> 8a/copy-byte 0/mod/indirect 6/rm32/esi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/BL <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy byte at *esi to BL</span> <span id="L81" class="LineNr"> 81 </span> <span class="subxComment"># if (c1 == 0) return false</span> <span id="L82" class="LineNr"> 82 </span> 3d/compare-eax-and 0/imm32 -<span id="L83" class="LineNr"> 83 </span> 74/jump-if-equal $kernel-string-equal?:false/disp8 +<span id="L83" class="LineNr"> 83 </span> 74/jump-if-= $kernel-string-equal?:false/disp8 <span id="L84" class="LineNr"> 84 </span> <span class="subxComment"># if (c1 != c2) return false</span> <span id="L85" class="LineNr"> 85 </span> 39/compare 3/mod/direct 0/rm32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/ebx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare eax and ebx</span> -<span id="L86" class="LineNr"> 86 </span> 75/jump-if-not-equal $kernel-string-equal?:false/disp8 +<span id="L86" class="LineNr"> 86 </span> 75/jump-if-!= $kernel-string-equal?:false/disp8 <span id="L87" class="LineNr"> 87 </span> <span class="subxComment"># ++i</span> <span id="L88" class="LineNr"> 88 </span> 41/increment-ecx <span id="L89" class="LineNr"> 89 </span> <span class="subxComment"># ++s1</span> @@ -157,7 +157,7 @@ if ('onhashchange' in window) { <span id="L95" class="LineNr"> 95 </span> <span class="subxComment"># return *s1 == 0</span> <span id="L96" class="LineNr"> 96 </span> 8a/copy-byte 0/mod/indirect 7/rm32/edi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/AL <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy byte at *edi to AL</span> <span id="L97" class="LineNr"> 97 </span> 3d/compare-eax-and 0/imm32 -<span id="L98" class="LineNr"> 98 </span> 75/jump-if-not-equal $kernel-string-equal?:false/disp8 +<span id="L98" class="LineNr"> 98 </span> 75/jump-if-!= $kernel-string-equal?:false/disp8 <span id="L99" class="LineNr"> 99 </span><span class="Constant">$kernel-string-equal?:true</span>: <span id="L100" class="LineNr">100 </span> b8/copy-to-eax 1/imm32 <span id="L101" class="LineNr">101 </span> eb/jump $kernel-string-equal?:end/disp8 |