diff options
author | Kartik Agaram <vc@akkartik.com> | 2019-12-09 01:26:58 -0800 |
---|---|---|
committer | Kartik Agaram <vc@akkartik.com> | 2019-12-09 01:26:58 -0800 |
commit | 8aeb85f04ee68b960a6d326aca1a17dec2f6d019 (patch) | |
tree | 26f861361c28ca77fb8298b21a905dc6e06c91ef /html/055stream.subx.html | |
parent | 2249e605c19f0dbe0c34c1c4f635b802f56dc535 (diff) | |
download | mu-8aeb85f04ee68b960a6d326aca1a17dec2f6d019.tar.gz |
5806
Diffstat (limited to 'html/055stream.subx.html')
-rw-r--r-- | html/055stream.subx.html | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/html/055stream.subx.html b/html/055stream.subx.html index b87bf3ee..1aa67979 100644 --- a/html/055stream.subx.html +++ b/html/055stream.subx.html @@ -61,7 +61,7 @@ if ('onhashchange' in window) { <span id="L3" class="LineNr"> 3 </span><span class="subxComment"># A stream looks like this:</span> <span id="L4" class="LineNr"> 4 </span><span class="subxComment"># write : int # index at which writes go</span> <span id="L5" class="LineNr"> 5 </span><span class="subxComment"># read : int # index that we've read until</span> -<span id="L6" class="LineNr"> 6 </span><span class="subxComment"># data : (array byte) # prefixed by length as usual</span> +<span id="L6" class="LineNr"> 6 </span><span class="subxComment"># data : (ref array byte) # prefixed by length as usual</span> <span id="L7" class="LineNr"> 7 </span><span class="subxComment">#</span> <span id="L8" class="LineNr"> 8 </span><span class="subxComment"># some primitives for operating on streams:</span> <span id="L9" class="LineNr"> 9 </span><span class="subxComment"># - clear-stream (clears everything but the data length)</span> @@ -72,7 +72,7 @@ if ('onhashchange' in window) { <span id="L14" class="LineNr">14 </span><span class="subxS1Comment"># . op subop mod rm32 base index scale r32</span> <span id="L15" class="LineNr">15 </span><span class="subxS1Comment"># . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> <span id="L16" class="LineNr">16 </span> -<span id="L17" class="LineNr">17 </span><span class="subxFunction">clear-stream</span>: <span class="subxComment"># f : (address stream)</span> +<span id="L17" class="LineNr">17 </span><span class="subxFunction">clear-stream</span>: <span class="subxComment"># f : (address stream byte)</span> <span id="L18" class="LineNr">18 </span> <span class="subxS1Comment"># . prologue</span> <span id="L19" class="LineNr">19 </span> 55/push-ebp <span id="L20" class="LineNr">20 </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> @@ -81,23 +81,23 @@ if ('onhashchange' in window) { <span id="L23" class="LineNr">23 </span> 51/push-ecx <span id="L24" class="LineNr">24 </span> <span class="subxComment"># eax = f</span> <span id="L25" class="LineNr">25 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/eax 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+8) to eax</span> -<span id="L26" class="LineNr">26 </span> <span class="subxComment"># ecx = f->length</span> +<span id="L26" class="LineNr">26 </span> <span class="subxComment"># var count/ecx : int = f->length</span> <span id="L27" class="LineNr">27 </span> 8b/copy 1/mod/*+disp8 0/rm32/eax <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 *(eax+8) to ecx</span> -<span id="L28" class="LineNr">28 </span> <span class="subxComment"># ecx = &f->data[f->length]</span> +<span id="L28" class="LineNr">28 </span> <span class="subxComment"># var max/ecx : (address byte) = &f->data[f->length]</span> <span id="L29" class="LineNr">29 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx <span class="Normal"> . </span> 1/r32/ecx 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy eax+ecx+12 to ecx</span> <span id="L30" class="LineNr">30 </span> <span class="subxComment"># f->write = 0</span> <span id="L31" class="LineNr">31 </span> c7 0/subop/copy 0/mod/direct 0/rm32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/imm32 <span class="subxComment"># copy to *eax</span> <span id="L32" class="LineNr">32 </span> <span class="subxComment"># f->read = 0</span> <span id="L33" class="LineNr">33 </span> c7 0/subop/copy 1/mod/*+disp8 0/rm32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/disp8 0/imm32 <span class="subxComment"># copy to *(eax+4)</span> -<span id="L34" class="LineNr">34 </span> <span class="subxComment"># eax = f->data</span> +<span id="L34" class="LineNr">34 </span> <span class="subxComment"># var curr/eax : (address byte) = f->data</span> <span id="L35" class="LineNr">35 </span> 81 0/subop/add 3/mod/direct 0/rm32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to eax</span> <span id="L36" class="LineNr">36 </span><span class="Constant">$clear-stream:loop</span>: -<span id="L37" class="LineNr">37 </span> <span class="subxComment"># if (eax >= ecx) break</span> +<span id="L37" class="LineNr">37 </span> <span class="subxComment"># if (curr >= max) break</span> <span id="L38" class="LineNr">38 </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 with ecx</span> <span id="L39" class="LineNr">39 </span> 73/jump-if-greater-or-equal-unsigned $clear-stream:end/disp8 -<span id="L40" class="LineNr">40 </span> <span class="subxComment"># *eax = 0</span> +<span id="L40" class="LineNr">40 </span> <span class="subxComment"># *curr = 0</span> <span id="L41" class="LineNr">41 </span> c6 0/subop/copy-byte 0/mod/direct 0/rm32/eax <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/imm8 <span class="subxComment"># copy byte to *eax</span> -<span id="L42" class="LineNr">42 </span> <span class="subxComment"># ++eax</span> +<span id="L42" class="LineNr">42 </span> <span class="subxComment"># ++curr</span> <span id="L43" class="LineNr">43 </span> 40/increment-eax <span id="L44" class="LineNr">44 </span> eb/jump $clear-stream:<span class="Constant">loop</span>/disp8 <span id="L45" class="LineNr">45 </span><span class="Constant">$clear-stream:end</span>: @@ -109,7 +109,7 @@ if ('onhashchange' in window) { <span id="L51" class="LineNr">51 </span> 5d/pop-to-ebp <span id="L52" class="LineNr">52 </span> c3/return <span id="L53" class="LineNr">53 </span> -<span id="L54" class="LineNr">54 </span><span class="subxFunction">rewind-stream</span>: <span class="subxComment"># f : (address stream)</span> +<span id="L54" class="LineNr">54 </span><span class="subxFunction">rewind-stream</span>: <span class="subxComment"># f : (address stream byte)</span> <span id="L55" class="LineNr">55 </span> <span class="subxS1Comment"># . prologue</span> <span id="L56" class="LineNr">56 </span> 55/push-ebp <span id="L57" class="LineNr">57 </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> |