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diff --git a/html/subx/apps/crenshaw2-1.subx.html b/html/subx/apps/crenshaw2-1.subx.html new file mode 100644 index 00000000..73e18f96 --- /dev/null +++ b/html/subx/apps/crenshaw2-1.subx.html @@ -0,0 +1,194 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - subx/apps/crenshaw2-1.subx</title> +<meta name="Generator" content="Vim/8.0"> +<meta name="plugin-version" content="vim7.4_v2"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.LineNr { color: #444444; } +.Delimiter { color: #800080; } +.Comment { color: #9090ff; } +.Comment a { color:#0000ee; text-decoration:underline; } +.SalientComment { color: #00ffff; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</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:</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx translate apps/crenshaw2.1.subx 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(Error_integer)</span> +<span id="L23" class="LineNr"> 23 </span> <span class="Comment"># push args</span> +<span id="L24" class="LineNr"> 24 </span> 68/push Error_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 4 to ESP</span> +<span id="L29" class="LineNr"> 29 </span> <span class="Comment"># exit(0)</span> +<span id="L30" class="LineNr"> 30 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <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 0 to EBX</span> +<span id="L31" class="LineNr"> 31 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<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="Comment"># print error message and exit</span> +<span id="L35" class="LineNr"> 35 </span><span class="Comment"># really maps to the 'Expected' function in Crenshaw</span> +<span id="L36" class="LineNr"> 36 </span>abort: <span class="Comment"># s : (address array byte) -> <void></span> +<span id="L37" class="LineNr"> 37 </span> <span class="Comment"># error(s)</span> +<span id="L38" class="LineNr"> 38 </span> <span class="Comment"># push args</span> +<span id="L39" class="LineNr"> 39 </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="L40" class="LineNr"> 40 </span> <span class="Comment"># call</span> +<span id="L41" class="LineNr"> 41 </span> e8/call error/disp32 +<span id="L42" class="LineNr"> 42 </span> <span class="Comment"># discard arg</span> +<span id="L43" class="LineNr"> 43 </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 4 to ESP</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Comment"># exit(1)</span> +<span id="L45" class="LineNr"> 45 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EBX</span> +<span id="L46" class="LineNr"> 46 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L47" class="LineNr"> 47 </span> cd/syscall 0x80/imm8 +<span id="L48" class="LineNr"> 48 </span> +<span id="L49" class="LineNr"> 49 </span><span class="Comment"># print out "Error: #{s} expected\n" to stderr</span> +<span id="L50" class="LineNr"> 50 </span>error: <span class="Comment"># s : (address array byte) -> <void></span> +<span id="L51" class="LineNr"> 51 </span> <span class="Comment"># write_stderr("Error: ")</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Comment"># push args</span> +<span id="L53" class="LineNr"> 53 </span> 68/push Error/imm32 +<span id="L54" class="LineNr"> 54 </span> <span class="Comment"># call</span> +<span id="L55" class="LineNr"> 55 </span> e8/call write_stderr/disp32 +<span id="L56" class="LineNr"> 56 </span> <span class="Comment"># discard arg</span> +<span id="L57" class="LineNr"> 57 </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 4 to ESP</span> +<span id="L58" class="LineNr"> 58 </span> <span class="Comment"># write_stderr(s)</span> +<span id="L59" class="LineNr"> 59 </span> <span class="Comment"># push args</span> +<span id="L60" class="LineNr"> 60 </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="L61" class="LineNr"> 61 </span> <span class="Comment"># call</span> +<span id="L62" class="LineNr"> 62 </span> e8/call write_stderr/disp32 +<span id="L63" class="LineNr"> 63 </span> <span class="Comment"># discard arg</span> +<span id="L64" class="LineNr"> 64 </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 4 to ESP</span> +<span id="L65" class="LineNr"> 65 </span> <span class="Comment"># write_stderr(" expected")</span> +<span id="L66" class="LineNr"> 66 </span> <span class="Comment"># push args</span> +<span id="L67" class="LineNr"> 67 </span> 68/push Expected_suffix/imm32 +<span id="L68" class="LineNr"> 68 </span> <span class="Comment"># call</span> +<span id="L69" class="LineNr"> 69 </span> e8/call write_stderr/disp32 +<span id="L70" class="LineNr"> 70 </span> <span class="Comment"># discard arg</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> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L72" class="LineNr"> 72 </span> <span class="Comment"># write_stderr("\n")</span> +<span id="L73" class="LineNr"> 73 </span> <span class="Comment"># push args</span> +<span id="L74" class="LineNr"> 74 </span> 68/push Newline/imm32 +<span id="L75" class="LineNr"> 75 </span> <span class="Comment"># call</span> +<span id="L76" class="LineNr"> 76 </span> e8/call write_stderr/disp32 +<span id="L77" class="LineNr"> 77 </span> <span class="Comment"># discard arg</span> +<span id="L78" class="LineNr"> 78 </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 4 to ESP</span> +<span id="L79" class="LineNr"> 79 </span> <span class="Comment"># end</span> +<span id="L80" class="LineNr"> 80 </span> c3/return +<span id="L81" class="LineNr"> 81 </span> +<span id="L82" class="LineNr"> 82 </span>write_stderr: <span class="Comment"># s : (address array byte) -> <void></span> +<span id="L83" class="LineNr"> 83 </span> <span class="Comment"># write(2/stderr, (data) s+4, (size) *s)</span> +<span id="L84" class="LineNr"> 84 </span> <span class="Comment"># fd = 2 (stderr)</span> +<span id="L85" class="LineNr"> 85 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/imm32 <span class="Comment"># copy 2 to EBX</span> +<span id="L86" class="LineNr"> 86 </span> <span class="Comment"># x = s+4</span> +<span id="L87" class="LineNr"> 87 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to ECX</span> +<span id="L88" class="LineNr"> 88 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <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 4 to ECX</span> +<span id="L89" class="LineNr"> 89 </span> <span class="Comment"># size = *s</span> +<span id="L90" class="LineNr"> 90 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to EDX</span> +<span id="L91" class="LineNr"> 91 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> +<span id="L92" class="LineNr"> 92 </span> <span class="Comment"># call write()</span> +<span id="L93" class="LineNr"> 93 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy 1 to EAX</span> +<span id="L94" class="LineNr"> 94 </span> cd/syscall 0x80/imm8 +<span id="L95" class="LineNr"> 95 </span> <span class="Comment"># end</span> +<span id="L96" class="LineNr"> 96 </span> c3/return +<span id="L97" class="LineNr"> 97 </span> +<span id="L98" class="LineNr"> 98 </span>write_stdout: <span class="Comment"># s : (address array byte) -> <void></span> +<span id="L99" class="LineNr"> 99 </span> <span class="Comment"># write(1/stdout, (data) s+4, (size) *s)</span> +<span id="L100" class="LineNr">100 </span> <span class="Comment"># fd = 1 (stdout)</span> +<span id="L101" class="LineNr">101 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EBX</span> +<span id="L102" class="LineNr">102 </span> <span class="Comment"># x = s+4</span> +<span id="L103" class="LineNr">103 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to ECX</span> +<span id="L104" class="LineNr">104 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <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 4 to ECX</span> +<span id="L105" class="LineNr">105 </span> <span class="Comment"># size = *s</span> +<span id="L106" class="LineNr">106 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to EDX</span> +<span id="L107" class="LineNr">107 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> +<span id="L108" class="LineNr">108 </span> <span class="Comment"># call write()</span> +<span id="L109" class="LineNr">109 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy 1 to EAX</span> +<span id="L110" class="LineNr">110 </span> cd/syscall 0x80/imm8 +<span id="L111" class="LineNr">111 </span> <span class="Comment"># end</span> +<span id="L112" class="LineNr">112 </span> c3/return +<span id="L113" class="LineNr">113 </span> +<span id="L114" class="LineNr">114 </span>== data +<span id="L115" class="LineNr">115 </span>Newline: +<span id="L116" class="LineNr">116 </span> <span class="Comment"># size</span> +<span id="L117" class="LineNr">117 </span> 01 00 00 00 +<span id="L118" class="LineNr">118 </span> <span class="Comment"># data</span> +<span id="L119" class="LineNr">119 </span> 0a/newline +<span id="L120" class="LineNr">120 </span>Error: <span class="Comment"># "Error: " : (array byte)</span> +<span id="L121" class="LineNr">121 </span> <span class="Comment"># size</span> +<span id="L122" class="LineNr">122 </span> 07 00 00 00 +<span id="L123" class="LineNr">123 </span> <span class="Comment"># data</span> +<span id="L124" class="LineNr">124 </span> 45/E 72/r 72/r 6f/o 72/r 3a/: 20/space +<span id="L125" class="LineNr">125 </span>Expected_suffix: <span class="Comment"># " expected" : (array byte)</span> +<span id="L126" class="LineNr">126 </span> <span class="Comment"># size</span> +<span id="L127" class="LineNr">127 </span> 09 00 00 00 +<span id="L128" class="LineNr">128 </span> <span class="Comment"># data</span> +<span id="L129" class="LineNr">129 </span> 20/space 65/e 78/x 70/p 65/e 63/c 74/t 65/e 64/d +<span id="L130" class="LineNr">130 </span>Error_integer: <span class="Comment"># "Integer" : (array byte)</span> +<span id="L131" class="LineNr">131 </span> <span class="Comment"># size</span> +<span id="L132" class="LineNr">132 </span> 07 00 00 00 +<span id="L133" class="LineNr">133 </span> <span class="Comment"># data</span> +<span id="L134" class="LineNr">134 </span> 49/I 6e/n 74/t 65/e 67/g 65/e 72/r +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> |