diff options
| author | Kartik Agaram <vc@akkartik.com> | 2018-10-28 13:41:53 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2018-10-28 13:41:53 -0700 |
| commit | 4c37b3e91b3e9c891c22379f029c42abc38e408c (patch) | |
| tree | 4ec99b816d7a0d1c93107e16ea1d79e4231e6962 /html/subx/apps | |
| parent | 172e52c47bd5bd1b189c5160ffda30eb75c39239 (diff) | |
| download | mu-4c37b3e91b3e9c891c22379f029c42abc38e408c.tar.gz | |
4734
Diffstat (limited to 'html/subx/apps')
| -rw-r--r-- | html/subx/apps/crenshaw2-1.subx.html | 188 | ||||
| -rw-r--r-- | html/subx/apps/factorial.subx.html | 10 |
2 files changed, 105 insertions, 93 deletions
diff --git a/html/subx/apps/crenshaw2-1.subx.html b/html/subx/apps/crenshaw2-1.subx.html index 5bd1da84..c848a55f 100644 --- a/html/subx/apps/crenshaw2-1.subx.html +++ b/html/subx/apps/crenshaw2-1.subx.html @@ -54,94 +54,106 @@ if ('onhashchange' in window) { </head> <body onload='JumpToLine();'> <pre id='vimCodeElement'> -<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## port of <a href="https://github.com/akkartik/crenshaw/blob/master/tutor2.1.pas">https://github.com/akkartik/crenshaw/blob/master/tutor2.1.pas</a></span> -<span id="L2" class="LineNr"> 2 </span><span class="Comment"># corresponds to the section "single digits" in <a href="https://compilers.iecc.com/crenshaw/tutor2.txt">https://compilers.iecc.com/crenshaw/tutor2.txt</a></span> -<span id="L3" class="LineNr"> 3 </span><span class="Comment">#</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># To run (from the subx directory):</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx translate *.subx apps/crenshaw2.1.subx -o crenshaw 2.1</span> -<span id="L6" class="LineNr"> 6 </span><span class="Comment"># $ echo '3' |subx run apps/crenshaw2.1 |xxd -</span> -<span id="L7" class="LineNr"> 7 </span><span class="Comment"># Expected output:</span> -<span id="L8" class="LineNr"> 8 </span><span class="Comment"># TODO</span> -<span id="L9" class="LineNr"> 9 </span><span class="Comment">#</span> -<span id="L10" class="LineNr">10 </span><span class="Comment"># The output is the code a function would need to include, returning the</span> -<span id="L11" class="LineNr">11 </span><span class="Comment"># result in EAX.</span> -<span id="L12" class="LineNr">12 </span><span class="Comment">#</span> -<span id="L13" class="LineNr">13 </span><span class="Comment"># Major note: byte strings are not null-terminated. Instead they're prefixed</span> -<span id="L14" class="LineNr">14 </span><span class="Comment"># with a 32-bit length.</span> -<span id="L15" class="LineNr">15 </span> -<span id="L16" class="LineNr">16 </span>== code -<span id="L17" class="LineNr">17 </span><span class="Comment"># instruction effective address operand displacement immediate</span> -<span id="L18" class="LineNr">18 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> -<span id="L19" class="LineNr">19 </span><span class="Comment"># 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="L20" class="LineNr">20 </span> -<span id="L21" class="LineNr">21 </span><span class="Comment"># main:</span> -<span id="L22" class="LineNr">22 </span> <span class="Comment"># abort("Integer")</span> -<span id="L23" class="LineNr">23 </span> <span class="Comment"># push args</span> -<span id="L24" class="LineNr">24 </span> 68/push "Integer"/imm32 -<span id="L25" class="LineNr">25 </span> <span class="Comment"># call</span> -<span id="L26" class="LineNr">26 </span> e8/call abort/disp32 -<span id="L27" class="LineNr">27 </span> <span class="Comment"># discard arg</span> -<span id="L28" class="LineNr">28 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> -<span id="L29" class="LineNr">29 </span> <span class="Comment"># syscall(exit, 0)</span> -<span id="L30" class="LineNr">30 </span> bb/copy-to-EBX 0/imm32 -<span id="L31" class="LineNr">31 </span> b8/copy-to-EAX 1/imm32/exit -<span id="L32" class="LineNr">32 </span> cd/syscall 0x80/imm8 -<span id="L33" class="LineNr">33 </span> -<span id="L34" class="LineNr">34 </span><span class="SalientComment">## helpers</span> -<span id="L35" class="LineNr">35 </span> -<span id="L36" class="LineNr">36 </span><span class="Comment"># print error message and exit</span> -<span id="L37" class="LineNr">37 </span><span class="Comment"># really maps to the 'Expected' function in Crenshaw</span> -<span id="L38" class="LineNr">38 </span>abort: <span class="Comment"># s : (address array byte) -> <void></span> -<span id="L39" class="LineNr">39 </span> <span class="Comment"># error(s)</span> -<span id="L40" class="LineNr">40 </span> <span class="Comment"># push args</span> -<span id="L41" class="LineNr">41 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(ESP+4)</span> -<span id="L42" class="LineNr">42 </span> <span class="Comment"># call</span> -<span id="L43" class="LineNr">43 </span> e8/call error/disp32 -<span id="L44" class="LineNr">44 </span> <span class="Comment"># discard arg</span> -<span id="L45" class="LineNr">45 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> -<span id="L46" class="LineNr">46 </span> <span class="Comment"># syscall(exit, 1)</span> -<span id="L47" class="LineNr">47 </span> bb/copy-to-EBX 1/imm32 -<span id="L48" class="LineNr">48 </span> b8/copy-to-EAX 1/imm32/exit -<span id="L49" class="LineNr">49 </span> cd/syscall 0x80/imm8 -<span id="L50" class="LineNr">50 </span> -<span id="L51" class="LineNr">51 </span><span class="Comment"># print out "Error: #{s} expected\n" to stderr</span> -<span id="L52" class="LineNr">52 </span>error: <span class="Comment"># s : (address array byte) -> <void></span> -<span id="L53" class="LineNr">53 </span> <span class="Comment"># write(2/stderr, "Error: ")</span> -<span id="L54" class="LineNr">54 </span> <span class="Comment"># push args</span> -<span id="L55" class="LineNr">55 </span> 68/push "Error: "/imm32 -<span id="L56" class="LineNr">56 </span> 68/push 2/imm32/stderr -<span id="L57" class="LineNr">57 </span> <span class="Comment"># call</span> -<span id="L58" class="LineNr">58 </span> e8/call write/disp32 -<span id="L59" class="LineNr">59 </span> <span class="Comment"># discard arg</span> -<span id="L60" class="LineNr">60 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> -<span id="L61" class="LineNr">61 </span> <span class="Comment"># write(2/stderr, s)</span> -<span id="L62" class="LineNr">62 </span> <span class="Comment"># push args</span> -<span id="L63" class="LineNr">63 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(ESP+4)</span> -<span id="L64" class="LineNr">64 </span> 68/push 2/imm32/stderr -<span id="L65" class="LineNr">65 </span> <span class="Comment"># call</span> -<span id="L66" class="LineNr">66 </span> e8/call write/disp32 -<span id="L67" class="LineNr">67 </span> <span class="Comment"># discard arg</span> -<span id="L68" class="LineNr">68 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> -<span id="L69" class="LineNr">69 </span> <span class="Comment"># write(2/stderr, " expected")</span> -<span id="L70" class="LineNr">70 </span> <span class="Comment"># push args</span> -<span id="L71" class="LineNr">71 </span> 68/push " expected"/imm32 -<span id="L72" class="LineNr">72 </span> 68/push 2/imm32/stderr -<span id="L73" class="LineNr">73 </span> <span class="Comment"># call</span> -<span id="L74" class="LineNr">74 </span> e8/call write/disp32 -<span id="L75" class="LineNr">75 </span> <span class="Comment"># discard arg</span> -<span id="L76" class="LineNr">76 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> -<span id="L77" class="LineNr">77 </span> <span class="Comment"># write(2/stderr, "\n")</span> -<span id="L78" class="LineNr">78 </span> <span class="Comment"># push args</span> -<span id="L79" class="LineNr">79 </span> 68/push Newline/imm32 -<span id="L80" class="LineNr">80 </span> 68/push 2/imm32/stderr -<span id="L81" class="LineNr">81 </span> <span class="Comment"># call</span> -<span id="L82" class="LineNr">82 </span> e8/call write/disp32 -<span id="L83" class="LineNr">83 </span> <span class="Comment"># discard arg</span> -<span id="L84" class="LineNr">84 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> -<span id="L85" class="LineNr">85 </span> <span class="Comment"># end</span> -<span id="L86" class="LineNr">86 </span> c3/return -<span id="L87" class="LineNr">87 </span> -<span id="L88" class="LineNr">88 </span><span class="Comment"># vim:nowrap:textwidth=0</span> +<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## port of <a href="https://github.com/akkartik/crenshaw/blob/master/tutor2.1.pas">https://github.com/akkartik/crenshaw/blob/master/tutor2.1.pas</a></span> +<span id="L2" class="LineNr"> 2 </span><span class="Comment"># corresponds to the section "single digits" in <a href="https://compilers.iecc.com/crenshaw/tutor2.txt">https://compilers.iecc.com/crenshaw/tutor2.txt</a></span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment">#</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ ./subx translate *.subx apps/crenshaw2-1.subx -o crenshaw2-1</span> +<span id="L6" class="LineNr"> 6 </span><span class="Comment"># $ echo '3' |./subx run apps/crenshaw2-1</span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment"># Expected output (not working yet):</span> +<span id="L8" class="LineNr"> 8 </span><span class="Comment"># # syscall(exit, 3)</span> +<span id="L9" class="LineNr"> 9 </span><span class="Comment"># bb/copy-to-EBX 3/imm32</span> +<span id="L10" class="LineNr"> 10 </span><span class="Comment"># b8/copy-to-EAX 1/imm32/exit</span> +<span id="L11" class="LineNr"> 11 </span><span class="Comment"># cd/syscall 0x80/imm8</span> +<span id="L12" class="LineNr"> 12 </span><span class="Comment">#</span> +<span id="L13" class="LineNr"> 13 </span><span class="Comment"># To run the generated output:</span> +<span id="L14" class="LineNr"> 14 </span><span class="Comment"># $ echo '3' |./subx run apps/crenshaw2-1 > z1.subx</span> +<span id="L15" class="LineNr"> 15 </span><span class="Comment"># $ ./subx translate z1.subx -o z1</span> +<span id="L16" class="LineNr"> 16 </span><span class="Comment"># $ ./subx run z1</span> +<span id="L17" class="LineNr"> 17 </span><span class="Comment"># $ echo $?</span> +<span id="L18" class="LineNr"> 18 </span><span class="Comment"># 3</span> +<span id="L19" class="LineNr"> 19 </span><span class="Comment">#</span> +<span id="L20" class="LineNr"> 20 </span><span class="Comment"># Stdin must contain just a single hex number. Other input will print an error:</span> +<span id="L21" class="LineNr"> 21 </span><span class="Comment"># $ echo 'xyz' |./subx run apps/crenshaw2-1</span> +<span id="L22" class="LineNr"> 22 </span><span class="Comment"># Error: integer expected</span> +<span id="L23" class="LineNr"> 23 </span> +<span id="L24" class="LineNr"> 24 </span>== code +<span id="L25" class="LineNr"> 25 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L26" class="LineNr"> 26 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L27" class="LineNr"> 27 </span><span class="Comment"># 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="L28" class="LineNr"> 28 </span> +<span id="L29" class="LineNr"> 29 </span><span class="Comment"># main:</span> +<span id="L30" class="LineNr"> 30 </span> <span class="Comment"># allocate space for an exit-descriptor</span> +<span id="L31" class="LineNr"> 31 </span> <span class="Comment"># var ed/EAX : (address exit-descriptor)</span> +<span id="L32" class="LineNr"> 32 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># subtract from ESP</span> +<span id="L33" class="LineNr"> 33 </span> 8d/copy-address 0/mod/indirect 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EAX</span> +<span id="L34" class="LineNr"> 34 </span> <span class="Comment"># clear ed->target (so we really exit)</span> +<span id="L35" class="LineNr"> 35 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to *EAX</span> +<span id="L36" class="LineNr"> 36 </span> <span class="Comment"># expected(ed, 2/stderr, "integer")</span> +<span id="L37" class="LineNr"> 37 </span> <span class="Comment"># push args</span> +<span id="L38" class="LineNr"> 38 </span> 68/push "integer"/imm32 +<span id="L39" class="LineNr"> 39 </span> 68/push 2/imm32/stderr +<span id="L40" class="LineNr"> 40 </span> 50/push-EAX +<span id="L41" class="LineNr"> 41 </span> <span class="Comment"># call</span> +<span id="L42" class="LineNr"> 42 </span> e8/call expected/disp32 +<span id="L43" class="LineNr"> 43 </span> <span class="Comment"># discard args</span> +<span id="L44" class="LineNr"> 44 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Comment"># syscall(exit, 0)</span> +<span id="L46" class="LineNr"> 46 </span> bb/copy-to-EBX 0/imm32 +<span id="L47" class="LineNr"> 47 </span> b8/copy-to-EAX 1/imm32/exit +<span id="L48" class="LineNr"> 48 </span> cd/syscall 0x80/imm8 +<span id="L49" class="LineNr"> 49 </span> +<span id="L50" class="LineNr"> 50 </span><span class="SalientComment">## helpers</span> +<span id="L51" class="LineNr"> 51 </span> +<span id="L52" class="LineNr"> 52 </span>expected: <span class="Comment"># ed : (address exit-descriptor), f : fd or (address stream), s : (address array byte)</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Comment"># prolog</span> +<span id="L54" class="LineNr"> 54 </span> 55/push-EBP +<span id="L55" class="LineNr"> 55 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L56" class="LineNr"> 56 </span> <span class="Comment"># write(f, "Error: ")</span> +<span id="L57" class="LineNr"> 57 </span> <span class="Comment"># push args</span> +<span id="L58" class="LineNr"> 58 </span> 68/push "Error: "/imm32 +<span id="L59" class="LineNr"> 59 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+12)</span> +<span id="L60" class="LineNr"> 60 </span> <span class="Comment"># call</span> +<span id="L61" class="LineNr"> 61 </span> e8/call write/disp32 +<span id="L62" class="LineNr"> 62 </span> <span class="Comment"># discard args</span> +<span id="L63" class="LineNr"> 63 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L64" class="LineNr"> 64 </span> <span class="Comment"># write(f, s)</span> +<span id="L65" class="LineNr"> 65 </span> <span class="Comment"># push args</span> +<span id="L66" class="LineNr"> 66 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x10/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+16)</span> +<span id="L67" class="LineNr"> 67 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+12)</span> +<span id="L68" class="LineNr"> 68 </span> <span class="Comment"># call</span> +<span id="L69" class="LineNr"> 69 </span> e8/call write/disp32 +<span id="L70" class="LineNr"> 70 </span> <span class="Comment"># discard args</span> +<span id="L71" class="LineNr"> 71 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L72" class="LineNr"> 72 </span> <span class="Comment"># write(f, " expected")</span> +<span id="L73" class="LineNr"> 73 </span> <span class="Comment"># push args</span> +<span id="L74" class="LineNr"> 74 </span> 68/push " expected"/imm32 +<span id="L75" class="LineNr"> 75 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+12)</span> +<span id="L76" class="LineNr"> 76 </span> <span class="Comment"># call</span> +<span id="L77" class="LineNr"> 77 </span> e8/call write/disp32 +<span id="L78" class="LineNr"> 78 </span> <span class="Comment"># discard args</span> +<span id="L79" class="LineNr"> 79 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L80" class="LineNr"> 80 </span> <span class="Comment"># write(f, Newline)</span> +<span id="L81" class="LineNr"> 81 </span> <span class="Comment"># push args</span> +<span id="L82" class="LineNr"> 82 </span> 68/push Newline/imm32 +<span id="L83" class="LineNr"> 83 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+12)</span> +<span id="L84" class="LineNr"> 84 </span> <span class="Comment"># call</span> +<span id="L85" class="LineNr"> 85 </span> e8/call write/disp32 +<span id="L86" class="LineNr"> 86 </span> <span class="Comment"># discard args</span> +<span id="L87" class="LineNr"> 87 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L88" class="LineNr"> 88 </span> <span class="Comment"># stop(ed, 1)</span> +<span id="L89" class="LineNr"> 89 </span> <span class="Comment"># push args</span> +<span id="L90" class="LineNr"> 90 </span> 68/push 1/imm32 +<span id="L91" class="LineNr"> 91 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+8)</span> +<span id="L92" class="LineNr"> 92 </span> <span class="Comment"># call</span> +<span id="L93" class="LineNr"> 93 </span> e8/call stop/disp32 +<span id="L94" class="LineNr"> 94 </span> <span class="SalientComment">## should never get past this point</span> +<span id="L95" class="LineNr"> 95 </span> <span class="Comment"># epilog</span> +<span id="L96" class="LineNr"> 96 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> +<span id="L97" class="LineNr"> 97 </span> 5d/pop-to-EBP +<span id="L98" class="LineNr"> 98 </span> c3/return +<span id="L99" class="LineNr"> 99 </span> +<span id="L100" class="LineNr">100 </span><span class="Comment"># vim:nowrap:textwidth=0</span> </pre> </body> </html> diff --git a/html/subx/apps/factorial.subx.html b/html/subx/apps/factorial.subx.html index 8e65e9cc..a30495cb 100644 --- a/html/subx/apps/factorial.subx.html +++ b/html/subx/apps/factorial.subx.html @@ -98,11 +98,11 @@ if ('onhashchange' in window) { <span id="L42" class="LineNr"> 42 </span> eb/jump $main:end/disp8 <span class="Comment"># where EAX will get copied to EBX</span> <span id="L43" class="LineNr"> 43 </span> <span class="Comment"># else EAX = factorial(5)</span> <span id="L44" class="LineNr"> 44 </span>$run-main: -<span id="L45" class="LineNr"> 45 </span> <span class="Comment"># push arg</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Comment"># push args</span> <span id="L46" class="LineNr"> 46 </span> 68/push 5/imm32 <span id="L47" class="LineNr"> 47 </span> <span class="Comment"># call</span> <span id="L48" class="LineNr"> 48 </span> e8/call factorial/disp32 -<span id="L49" class="LineNr"> 49 </span> <span class="Comment"># discard arg</span> +<span id="L49" class="LineNr"> 49 </span> <span class="Comment"># discard args</span> <span id="L50" class="LineNr"> 50 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L51" class="LineNr"> 51 </span>$main:end: <span id="L52" class="LineNr"> 52 </span> <span class="Comment"># exit(EAX)</span> @@ -129,7 +129,7 @@ if ('onhashchange' in window) { <span id="L73" class="LineNr"> 73 </span> 53/push-EBX <span id="L74" class="LineNr"> 74 </span> <span class="Comment"># call</span> <span id="L75" class="LineNr"> 75 </span> e8/call factorial/disp32 -<span id="L76" class="LineNr"> 76 </span> <span class="Comment"># discard arg</span> +<span id="L76" class="LineNr"> 76 </span> <span class="Comment"># discard args</span> <span id="L77" class="LineNr"> 77 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L78" class="LineNr"> 78 </span> <span class="Comment"># return n * factorial(n-1)</span> <span id="L79" class="LineNr"> 79 </span> f7 4/subop/multiply 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># multiply *(EBP+8) into EAX</span> @@ -143,11 +143,11 @@ if ('onhashchange' in window) { <span id="L87" class="LineNr"> 87 </span> <span id="L88" class="LineNr"> 88 </span>test-factorial: <span id="L89" class="LineNr"> 89 </span> <span class="Comment"># factorial(5)</span> -<span id="L90" class="LineNr"> 90 </span> <span class="Comment"># push arg</span> +<span id="L90" class="LineNr"> 90 </span> <span class="Comment"># push args</span> <span id="L91" class="LineNr"> 91 </span> 68/push 5/imm32 <span id="L92" class="LineNr"> 92 </span> <span class="Comment"># call</span> <span id="L93" class="LineNr"> 93 </span> e8/call factorial/disp32 -<span id="L94" class="LineNr"> 94 </span> <span class="Comment"># discard arg</span> +<span id="L94" class="LineNr"> 94 </span> <span class="Comment"># discard args</span> <span id="L95" class="LineNr"> 95 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L96" class="LineNr"> 96 </span> <span class="Comment"># check-ints-equal(EAX, 120, failure message)</span> <span id="L97" class="LineNr"> 97 </span> <span class="Comment"># push args</span> |