diff options
Diffstat (limited to 'html/examples/ex8.subx.html')
| -rw-r--r-- | html/examples/ex8.subx.html | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/html/examples/ex8.subx.html b/html/examples/ex8.subx.html index 51234836..d7aa39b5 100644 --- a/html/examples/ex8.subx.html +++ b/html/examples/ex8.subx.html @@ -67,11 +67,11 @@ if ('onhashchange' in window) { <span id="L8" class="LineNr"> 8 </span><span class="subxComment"># 3 # length of 'abc'</span> <span id="L9" class="LineNr"> 9 </span><span class="subxComment">#</span> <span id="L10" class="LineNr">10 </span><span class="subxComment"># At the start of a SubX program:</span> -<span id="L11" class="LineNr">11 </span><span class="subxComment"># argc: *ESP</span> -<span id="L12" class="LineNr">12 </span><span class="subxComment"># argv[0]: *(ESP+4)</span> -<span id="L13" class="LineNr">13 </span><span class="subxComment"># argv[1]: *(ESP+8)</span> +<span id="L11" class="LineNr">11 </span><span class="subxComment"># argc: *esp</span> +<span id="L12" class="LineNr">12 </span><span class="subxComment"># argv[0]: *(esp+4)</span> +<span id="L13" class="LineNr">13 </span><span class="subxComment"># argv[1]: *(esp+8)</span> <span id="L14" class="LineNr">14 </span><span class="subxComment"># ...</span> -<span id="L15" class="LineNr">15 </span><span class="subxComment"># Locals start from ESP-4 downwards.</span> +<span id="L15" class="LineNr">15 </span><span class="subxComment"># Locals start from esp-4 downwards.</span> <span id="L16" class="LineNr">16 </span> <span id="L17" class="LineNr">17 </span>== code 0x09000000 <span id="L18" class="LineNr">18 </span><span class="subxComment"># instruction effective address register displacement immediate</span> @@ -80,39 +80,39 @@ if ('onhashchange' in window) { <span id="L21" class="LineNr">21 </span> <span id="L22" class="LineNr">22 </span><span class="SpecialChar">Entry</span>: <span id="L23" class="LineNr">23 </span> <span class="subxS1Comment"># . prolog</span> -<span id="L24" class="LineNr">24 </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="L25" class="LineNr">25 </span> <span class="subxComment"># EAX = ascii-length(argv[1])</span> +<span id="L24" class="LineNr">24 </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="L25" class="LineNr">25 </span> <span class="subxComment"># eax = ascii-length(argv[1])</span> <span id="L26" class="LineNr">26 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L27" class="LineNr">27 </span> ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># push *(EBP+8)</span> +<span id="L27" class="LineNr">27 </span> ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># push *(ebp+8)</span> <span id="L28" class="LineNr">28 </span> <span class="subxS2Comment"># . . call</span> <span id="L29" class="LineNr">29 </span> e8/call <a href='ex8.subx.html#L38'>ascii-length</a>/disp32 <span id="L30" class="LineNr">30 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L31" class="LineNr">31 </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> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L31" class="LineNr">31 </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> 4/imm32 <span class="subxComment"># add to esp</span> <span id="L32" class="LineNr">32 </span> -<span id="L33" class="LineNr">33 </span> <span class="subxComment"># exit(EAX)</span> -<span id="L34" class="LineNr">34 </span> 89/copy 3/mod/direct 3/rm32/EBX <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 EAX to EBX</span> -<span id="L35" class="LineNr">35 </span> b8/copy-to-EAX 1/imm32/exit +<span id="L33" class="LineNr">33 </span> <span class="subxComment"># exit(eax)</span> +<span id="L34" class="LineNr">34 </span> 89/copy 3/mod/direct 3/rm32/ebx <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 eax to ebx</span> +<span id="L35" class="LineNr">35 </span> b8/copy-to-eax 1/imm32/exit <span id="L36" class="LineNr">36 </span> cd/syscall 0x80/imm8 <span id="L37" class="LineNr">37 </span> -<span id="L38" class="LineNr">38 </span><span class="subxFunction">ascii-length</span>: <span class="subxComment"># s : (address array byte) -> n/EAX</span> -<span id="L39" class="LineNr">39 </span> <span class="subxComment"># EDX = s</span> -<span id="L40" class="LineNr">40 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Normal"> . </span> 2/r32/EDX 4/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ESP+4) to EDX</span> -<span id="L41" class="LineNr">41 </span> <span class="subxComment"># var result/EAX = 0</span> -<span id="L42" class="LineNr">42 </span> b8/copy-to-EAX 0/imm32 +<span id="L38" class="LineNr">38 </span><span class="subxFunction">ascii-length</span>: <span class="subxComment"># s : (address array byte) -> n/eax</span> +<span id="L39" class="LineNr">39 </span> <span class="subxComment"># edx = s</span> +<span id="L40" class="LineNr">40 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/esp 4/index/none <span class="Normal"> . </span> 2/r32/edx 4/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(esp+4) to edx</span> +<span id="L41" class="LineNr">41 </span> <span class="subxComment"># var result/eax = 0</span> +<span id="L42" class="LineNr">42 </span> b8/copy-to-eax 0/imm32 <span id="L43" class="LineNr">43 </span><span class="Constant">$ascii-length:loop</span>: -<span id="L44" class="LineNr">44 </span> <span class="subxComment"># var c/ECX = *s</span> -<span id="L45" class="LineNr">45 </span> 8a/copy-byte 0/mod/* 2/rm32/EDX <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 *EDX to CL</span> +<span id="L44" class="LineNr">44 </span> <span class="subxComment"># var c/ecx = *s</span> +<span id="L45" class="LineNr">45 </span> 8a/copy-byte 0/mod/* 2/rm32/edx <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 *edx to CL</span> <span id="L46" class="LineNr">46 </span> <span class="subxComment"># if (c == '\0') break</span> -<span id="L47" class="LineNr">47 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <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"># compare ECX</span> +<span id="L47" class="LineNr">47 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ecx <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"># compare ecx</span> <span id="L48" class="LineNr">48 </span> 74/jump-if-equal $ascii-length:end/disp8 <span id="L49" class="LineNr">49 </span> <span class="subxComment"># ++s</span> -<span id="L50" class="LineNr">50 </span> 42/increment-EDX +<span id="L50" class="LineNr">50 </span> 42/increment-edx <span id="L51" class="LineNr">51 </span> <span class="subxComment"># ++result</span> -<span id="L52" class="LineNr">52 </span> 40/increment-EAX +<span id="L52" class="LineNr">52 </span> 40/increment-eax <span id="L53" class="LineNr">53 </span> <span class="subxComment"># loop</span> <span id="L54" class="LineNr">54 </span> eb/jump $ascii-length:loop/disp8 <span id="L55" class="LineNr">55 </span><span class="Constant">$ascii-length:end</span>: -<span id="L56" class="LineNr">56 </span> <span class="subxComment"># return EAX</span> +<span id="L56" class="LineNr">56 </span> <span class="subxComment"># return eax</span> <span id="L57" class="LineNr">57 </span> c3/return <span id="L58" class="LineNr">58 </span> <span id="L59" class="LineNr">59 </span>== data 0x0a000000 |