diff options
| author | Kartik Agaram <vc@akkartik.com> | 2020-05-22 23:08:09 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2020-05-22 23:12:11 -0700 |
| commit | 9a77780158842db6e4aa098f5027e030fc3bd878 (patch) | |
| tree | 39dcb108e89fa7135bb74f8796ed55c5d117a362 /html/060read.subx.html | |
| parent | 3d0c48adf989ce9431986320ca76f565dc53ee5c (diff) | |
| download | mu-9a77780158842db6e4aa098f5027e030fc3bd878.tar.gz | |
6384
Diffstat (limited to 'html/060read.subx.html')
| -rw-r--r-- | html/060read.subx.html | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/html/060read.subx.html b/html/060read.subx.html index 140a0e95..dee513d3 100644 --- a/html/060read.subx.html +++ b/html/060read.subx.html @@ -16,10 +16,10 @@ a { color:inherit; } * { font-size:12pt; font-size: 1em; } .subxComment { color: #005faf; } .subxS2Comment { color: #8a8a8a; } -.LineNr { } -.subxS1Comment { color: #0000af; } .subxTest { color: #5f8700; } .subxFunction { color: #af5f00; text-decoration: underline; } +.LineNr { } +.subxS1Comment { color: #0000af; } .Normal { color: #000000; background-color: #c6c6c6; padding-bottom: 1px; } .subxMinorFunction { color: #875f5f; } .Constant { color: #008787; } @@ -99,7 +99,7 @@ if ('onhashchange' in window) { <span id="L38" class="LineNr"> 38 </span><span class="subxComment"># As a reminder, a stream looks like this:</span> <span id="L39" class="LineNr"> 39 </span><span class="subxComment"># write: int # index at which to write to next</span> <span id="L40" class="LineNr"> 40 </span><span class="subxComment"># read: int # index at which to read next</span> -<span id="L41" class="LineNr"> 41 </span><span class="subxComment"># data: (array byte) # prefixed by length as usual</span> +<span id="L41" class="LineNr"> 41 </span><span class="subxComment"># data: (array byte) # prefixed by size as usual</span> <span id="L42" class="LineNr"> 42 </span> <span id="L43" class="LineNr"> 43 </span>== code <span id="L44" class="LineNr"> 44 </span><span class="subxComment"># instruction effective address register displacement immediate</span> @@ -131,7 +131,7 @@ if ('onhashchange' in window) { <span id="L70" class="LineNr"> 70 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 6/r32/esi 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+8) to esi</span> <span id="L71" class="LineNr"> 71 </span> <span class="subxComment"># edi = s</span> <span id="L72" class="LineNr"> 72 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 7/r32/edi 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+12) to esi</span> -<span id="L73" class="LineNr"> 73 </span> <span class="subxComment"># eax = _buffer-4(out = &s->data[s->write], outend = &s->data[s->length],</span> +<span id="L73" class="LineNr"> 73 </span> <span class="subxComment"># eax = _buffer-4(out = &s->data[s->write], outend = &s->data[s->size],</span> <span id="L74" class="LineNr"> 74 </span> <span class="subxComment"># in = &f->data[f->read], inend = &f->data[f->write])</span> <span id="L75" class="LineNr"> 75 </span> <span class="subxS2Comment"># . . push &f->data[f->write]</span> <span id="L76" class="LineNr"> 76 </span> 8b/copy 0/mod/indirect 6/rm32/esi <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"># copy *esi to eax</span> @@ -141,7 +141,7 @@ if ('onhashchange' in window) { <span id="L80" class="LineNr"> 80 </span> 8b/copy 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> <span id="L81" class="LineNr"> 81 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/esi 0/index/eax <span class="Normal"> . </span> 0/r32/eax 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy esi+eax+12 to eax</span> <span id="L82" class="LineNr"> 82 </span> 50/push-eax -<span id="L83" class="LineNr"> 83 </span> <span class="subxS2Comment"># . . push &s->data[s->length]</span> +<span id="L83" class="LineNr"> 83 </span> <span class="subxS2Comment"># . . push &s->data[s->size]</span> <span id="L84" class="LineNr"> 84 </span> 8b/copy 1/mod/*+disp8 7/rm32/edi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/eax 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(edi+8) to eax</span> <span id="L85" class="LineNr"> 85 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 7/base/edi 0/index/eax <span class="Normal"> . </span> 0/r32/eax 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy edi+eax+12 to eax</span> <span id="L86" class="LineNr"> 86 </span> 50/push-eax @@ -177,8 +177,8 @@ if ('onhashchange' in window) { <span id="L116" class="LineNr">116 </span> 89/copy 3/mod/direct 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/r32/esp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy esp to ebp</span> <span id="L117" class="LineNr">117 </span> <span class="subxS1Comment"># . save registers</span> <span id="L118" class="LineNr">118 </span> 51/push-ecx -<span id="L119" class="LineNr">119 </span> <span class="subxComment"># eax = _buffer-4(out, outend, &s->data[0], &s->data[s->length])</span> -<span id="L120" class="LineNr">120 </span> <span class="subxS2Comment"># . . push &s->data[s->length]</span> +<span id="L119" class="LineNr">119 </span> <span class="subxComment"># eax = _buffer-4(out, outend, &s->data[0], &s->data[s->size])</span> +<span id="L120" class="LineNr">120 </span> <span class="subxS2Comment"># . . push &s->data[s->size]</span> <span id="L121" class="LineNr">121 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/eax 0x10/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+16) to eax</span> <span id="L122" class="LineNr">122 </span> 8b/copy 0/mod/indirect 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"># copy *eax to ecx</span> <span id="L123" class="LineNr">123 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx <span class="Normal"> . </span> 1/r32/ecx 4/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy eax+ecx+4 to ecx</span> @@ -269,14 +269,14 @@ if ('onhashchange' in window) { <span id="L208" class="LineNr">208 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 6/r32/esi 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+12) to esi</span> <span id="L209" class="LineNr">209 </span> <span class="subxComment"># eax = s->write</span> <span id="L210" class="LineNr">210 </span> 8b/copy 0/mod/indirect 6/rm32/esi <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"># copy *esi to eax</span> -<span id="L211" class="LineNr">211 </span> <span class="subxComment"># edx = s->length</span> +<span id="L211" class="LineNr">211 </span> <span class="subxComment"># edx = s->size</span> <span id="L212" class="LineNr">212 </span> 8b/copy 1/mod/*+disp8 6/rm32/esi <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/edx 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(esi+8) to edx</span> -<span id="L213" class="LineNr">213 </span> <span class="subxComment"># syscall(read, fd, &s->data[s->write], s->length - s->write)</span> +<span id="L213" class="LineNr">213 </span> <span class="subxComment"># syscall(read, fd, &s->data[s->write], s->size - s->write)</span> <span id="L214" class="LineNr">214 </span> <span class="subxS2Comment"># . . fd: ebx</span> <span id="L215" class="LineNr">215 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/ebx 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+8) to ebx</span> <span id="L216" class="LineNr">216 </span> <span class="subxS2Comment"># . . data: ecx = &s->data[s->write]</span> <span id="L217" class="LineNr">217 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/esi 0/index/eax <span class="Normal"> . </span> 1/r32/ecx 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy esi+eax+12 to ecx</span> -<span id="L218" class="LineNr">218 </span> <span class="subxS2Comment"># . . size: edx = s->length - s->write</span> +<span id="L218" class="LineNr">218 </span> <span class="subxS2Comment"># . . size: edx = s->size - s->write</span> <span id="L219" class="LineNr">219 </span> 29/subtract 3/mod/direct 2/rm32/edx <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"># subtract eax from edx</span> <span id="L220" class="LineNr">220 </span> <span class="subxS2Comment"># . . syscall</span> <span id="L221" class="LineNr">221 </span> b8/copy-to-eax 3/imm32/read @@ -298,14 +298,14 @@ if ('onhashchange' in window) { <span id="L237" class="LineNr">237 </span> <span class="subxComment"># 1 (what we have above):</span> <span id="L238" class="LineNr">238 </span> <span class="subxComment"># ecx = s</span> <span id="L239" class="LineNr">239 </span> <span class="subxComment"># eax = s->write</span> -<span id="L240" class="LineNr">240 </span> <span class="subxComment"># edx = s->length</span> +<span id="L240" class="LineNr">240 </span> <span class="subxComment"># edx = s->size</span> <span id="L241" class="LineNr">241 </span> <span class="subxComment"># # syscall</span> <span id="L242" class="LineNr">242 </span> <span class="subxComment"># ecx = lea ecx+eax+12</span> <span id="L243" class="LineNr">243 </span> <span class="subxComment"># edx = sub edx eax</span> <span id="L244" class="LineNr">244 </span> <span class="subxComment">#</span> <span id="L245" class="LineNr">245 </span> <span class="subxComment"># 2:</span> <span id="L246" class="LineNr">246 </span> <span class="subxComment"># ecx = s</span> -<span id="L247" class="LineNr">247 </span> <span class="subxComment"># edx = s->length</span> +<span id="L247" class="LineNr">247 </span> <span class="subxComment"># edx = s->size</span> <span id="L248" class="LineNr">248 </span> <span class="subxComment"># ecx = &s->data</span> <span id="L249" class="LineNr">249 </span> <span class="subxComment"># # syscall</span> <span id="L250" class="LineNr">250 </span> <span class="subxComment"># ecx = add ecx, s->write</span> @@ -492,7 +492,7 @@ if ('onhashchange' in window) { <span id="L431" class="LineNr">431 </span> 0/imm32 <span id="L432" class="LineNr">432 </span> <span class="subxComment"># current read index</span> <span id="L433" class="LineNr">433 </span> 0/imm32 -<span id="L434" class="LineNr">434 </span> <span class="subxComment"># length</span> +<span id="L434" class="LineNr">434 </span> <span class="subxComment"># size</span> <span id="L435" class="LineNr">435 </span> 8/imm32 <span id="L436" class="LineNr">436 </span> <span class="subxComment"># data</span> <span id="L437" class="LineNr">437 </span> 00 00 00 00 00 00 00 00 <span class="subxComment"># 8 bytes</span> |