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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/058stream-equal.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/058stream-equal.subx.html')
| -rw-r--r-- | html/058stream-equal.subx.html | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/html/058stream-equal.subx.html b/html/058stream-equal.subx.html index f4e87361..231f300e 100644 --- a/html/058stream-equal.subx.html +++ b/html/058stream-equal.subx.html @@ -87,7 +87,7 @@ if ('onhashchange' in window) { <span id="L28" class="LineNr"> 28 </span><span class="Constant">$stream-data-equal?:compare-lengths</span>: <span id="L29" class="LineNr"> 29 </span> <span class="subxComment"># if (f->write != s->length) return false</span> <span id="L30" class="LineNr"> 30 </span> 39/compare 0/mod/indirect 7/rm32/edi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare *edi and eax</span> -<span id="L31" class="LineNr"> 31 </span> 75/jump-if-not-equal $stream-data-equal?:false/disp8 +<span id="L31" class="LineNr"> 31 </span> 75/jump-if-!= $stream-data-equal?:false/disp8 <span id="L32" class="LineNr"> 32 </span> <span class="subxComment"># var currs/edi : (addr byte) = s->data</span> <span id="L33" class="LineNr"> 33 </span> 81 0/subop/add 3/mod/direct 7/rm32/edi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/imm32 <span class="subxComment"># add to edi</span> <span id="L34" class="LineNr"> 34 </span> <span class="subxComment"># var eax : byte = 0</span> @@ -97,14 +97,14 @@ if ('onhashchange' in window) { <span id="L38" class="LineNr"> 38 </span><span class="Constant">$stream-data-equal?:loop</span>: <span id="L39" class="LineNr"> 39 </span> <span class="subxComment"># if (currf >= maxf) return true</span> <span id="L40" class="LineNr"> 40 </span> 39/compare 3/mod/direct 6/rm32/esi <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 esi with edx</span> -<span id="L41" class="LineNr"> 41 </span> 73/jump-if-greater-or-equal-unsigned $stream-data-equal?:true/disp8 +<span id="L41" class="LineNr"> 41 </span> 73/jump-if-addr>= $stream-data-equal?:true/disp8 <span id="L42" class="LineNr"> 42 </span> <span class="subxComment"># AL = *currs</span> <span id="L43" class="LineNr"> 43 </span> 8a/copy-byte 0/mod/indirect 6/rm32/esi <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 *esi to AL</span> <span id="L44" class="LineNr"> 44 </span> <span class="subxComment"># CL = *curr</span> <span id="L45" class="LineNr"> 45 </span> 8a/copy-byte 0/mod/indirect 7/rm32/edi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/CL <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy byte at *edi to CL</span> <span id="L46" class="LineNr"> 46 </span> <span class="subxComment"># if (eax != ecx) return false</span> <span id="L47" class="LineNr"> 47 </span> 39/compare 3/mod/direct 0/rm32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare eax and ecx</span> -<span id="L48" class="LineNr"> 48 </span> 75/jump-if-not-equal $stream-data-equal?:false/disp8 +<span id="L48" class="LineNr"> 48 </span> 75/jump-if-!= $stream-data-equal?:false/disp8 <span id="L49" class="LineNr"> 49 </span> <span class="subxComment"># ++f</span> <span id="L50" class="LineNr"> 50 </span> 46/increment-esi <span id="L51" class="LineNr"> 51 </span> <span class="subxComment"># ++curr</span> @@ -346,20 +346,20 @@ if ('onhashchange' in window) { <span id="L287" class="LineNr">287 </span><span class="Constant">$next-stream-line-equal?:loop</span>: <span id="L288" class="LineNr">288 </span> <span class="subxComment"># if (currf >= f->write) break</span> <span id="L289" class="LineNr">289 </span> 3b/compare 0/mod/indirect 6/rm32/esi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare ecx with *esi</span> -<span id="L290" class="LineNr">290 </span> 7d/jump-if-greater-or-equal $next-stream-line-equal?:<span class="Constant">break</span>/disp8 +<span id="L290" class="LineNr">290 </span> 7d/jump-if->= $next-stream-line-equal?:<span class="Constant">break</span>/disp8 <span id="L291" class="LineNr">291 </span> <span class="subxComment"># c1 = f->data[f->read]</span> <span id="L292" class="LineNr">292 </span> 8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx <span class="Normal"> . </span> 0/r32/AL 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy byte at *(esi+ecx+12) to AL</span> <span id="L293" class="LineNr">293 </span> <span class="subxComment"># if (c1 == '\n') break</span> <span id="L294" class="LineNr">294 </span> 3d/compare-eax-and 0xa/imm32/newline -<span id="L295" class="LineNr">295 </span> 74/jump-if-equal $next-stream-line-equal?:<span class="Constant">break</span>/disp8 +<span id="L295" class="LineNr">295 </span> 74/jump-if-= $next-stream-line-equal?:<span class="Constant">break</span>/disp8 <span id="L296" class="LineNr">296 </span> <span class="subxComment"># if (currs >= s->length) return false</span> <span id="L297" class="LineNr">297 </span> 3b/compare 0/mod/indirect 7/rm32/edi <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 edx with *edi</span> -<span id="L298" class="LineNr">298 </span> 7d/jump-if-greater-or-equal $next-stream-line-equal?:false/disp8 +<span id="L298" class="LineNr">298 </span> 7d/jump-if->= $next-stream-line-equal?:false/disp8 <span id="L299" class="LineNr">299 </span> <span class="subxComment"># c2 = s->data[currs]</span> <span id="L300" class="LineNr">300 </span> 8a/copy-byte 1/mod/*+disp8 4/rm32/sib 7/base/edi 2/index/edx <span class="Normal"> . </span> 3/r32/BL 4/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy byte at *(edi+edx+4) to BL</span> <span id="L301" class="LineNr">301 </span> <span class="subxComment"># if (c1 != c2) return false</span> <span id="L302" class="LineNr">302 </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="L303" class="LineNr">303 </span> 75/jump-if-not-equal $next-stream-line-equal?:false/disp8 +<span id="L303" class="LineNr">303 </span> 75/jump-if-!= $next-stream-line-equal?:false/disp8 <span id="L304" class="LineNr">304 </span> <span class="subxComment"># ++currf</span> <span id="L305" class="LineNr">305 </span> 41/increment-ecx <span id="L306" class="LineNr">306 </span> <span class="subxComment"># ++currs</span> @@ -370,7 +370,7 @@ if ('onhashchange' in window) { <span id="L311" class="LineNr">311 </span> 41/increment-ecx <span id="L312" class="LineNr">312 </span> <span class="subxComment"># if (currs >= s->length) return true</span> <span id="L313" class="LineNr">313 </span> 3b/compare 0/mod/indirect 7/rm32/edi <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 edx with *edi</span> -<span id="L314" class="LineNr">314 </span> 7c/jump-if-lesser $next-stream-line-equal?:false/disp8 +<span id="L314" class="LineNr">314 </span> 7c/jump-if-< $next-stream-line-equal?:false/disp8 <span id="L315" class="LineNr">315 </span><span class="Constant">$next-stream-line-equal?:true</span>: <span id="L316" class="LineNr">316 </span> b8/copy-to-eax 1/imm32 <span id="L317" class="LineNr">317 </span> <span class="subxComment"># persist f->read on success</span> |