about summary refs log tree commit diff stats
path: root/html/subx/examples/ex9.subx.html
diff options
context:
space:
mode:
authorKartik Agaram <vc@akkartik.com>2018-11-30 09:43:49 -0800
committerKartik Agaram <vc@akkartik.com>2018-11-30 09:43:49 -0800
commitc56d803cd8a0e3f28328f91aa1d457905a68641a (patch)
treedd527a54c1ed8b45d5db44960f579c6faaf9ebd8 /html/subx/examples/ex9.subx.html
parentf989d6ccf9884e911db25494983da476f3c511b1 (diff)
downloadmu-c56d803cd8a0e3f28328f91aa1d457905a68641a.tar.gz
4796
Diffstat (limited to 'html/subx/examples/ex9.subx.html')
-rw-r--r--html/subx/examples/ex9.subx.html90
1 files changed, 44 insertions, 46 deletions
diff --git a/html/subx/examples/ex9.subx.html b/html/subx/examples/ex9.subx.html
index f949f02a..0f683047 100644
--- a/html/subx/examples/ex9.subx.html
+++ b/html/subx/examples/ex9.subx.html
@@ -15,11 +15,9 @@ body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color
 a { color:#eeeeee; text-decoration: none; }
 a:hover { text-decoration: underline; }
 * { font-size: 12pt; font-size: 1em; }
+.subxComment { color: #005fff; }
 .LineNr { color: #444444; }
-.Delimiter { color: #800080; }
-.Comment { color: #9090ff; }
-.Comment a { color:#0000ee; text-decoration:underline; }
-.SalientComment { color: #00ffff; }
+.CommentedCode { color: #6c6c6c; }
 -->
 </style>
 
@@ -54,57 +52,57 @@ if ('onhashchange' in window) {
 </head>
 <body onload='JumpToLine();'>
 <pre id='vimCodeElement'>
-<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## Example showing arg order on the stack.</span>
-<span id="L2" class="LineNr"> 2 </span><span class="Comment"># Show difference between ascii codes of first letter of first arg and first</span>
-<span id="L3" class="LineNr"> 3 </span><span class="Comment"># letter of second arg.</span>
-<span id="L4" class="LineNr"> 4 </span><span class="Comment">#</span>
-<span id="L5" class="LineNr"> 5 </span><span class="Comment"># To run (from the subx directory):</span>
-<span id="L6" class="LineNr"> 6 </span><span class="Comment">#   $ subx translate examples/ex9.subx -o examples/ex9</span>
-<span id="L7" class="LineNr"> 7 </span><span class="Comment">#   $ subx run examples/ex9 z x</span>
-<span id="L8" class="LineNr"> 8 </span><span class="Comment"># Expected result:</span>
-<span id="L9" class="LineNr"> 9 </span><span class="Comment">#   $ echo $?</span>
-<span id="L10" class="LineNr">10 </span><span class="Comment">#   2</span>
-<span id="L11" class="LineNr">11 </span><span class="Comment">#</span>
-<span id="L12" class="LineNr">12 </span><span class="Comment"># At the start of a SubX program:</span>
-<span id="L13" class="LineNr">13 </span><span class="Comment">#   argc: *ESP</span>
-<span id="L14" class="LineNr">14 </span><span class="Comment">#   argv[0]: *(ESP+4)</span>
-<span id="L15" class="LineNr">15 </span><span class="Comment">#   argv[1]: *(ESP+8)</span>
-<span id="L16" class="LineNr">16 </span><span class="Comment">#   ...</span>
-<span id="L17" class="LineNr">17 </span><span class="Comment"># Locals start from ESP-4 downwards.</span>
+<span id="L1" class="LineNr"> 1 </span><span class="subxComment">## Example showing arg order on the stack.</span>
+<span id="L2" class="LineNr"> 2 </span><span class="subxComment"># Show difference between ascii codes of first letter of first arg and first</span>
+<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># letter of second arg.</span>
+<span id="L4" class="LineNr"> 4 </span><span class="subxComment">#</span>
+<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># To run (from the subx directory):</span>
+<span id="L6" class="LineNr"> 6 </span><span class="subxComment">#   $ subx translate examples/ex9.subx -o examples/ex9</span>
+<span id="L7" class="LineNr"> 7 </span><span class="subxComment">#   $ subx run examples/ex9 z x</span>
+<span id="L8" class="LineNr"> 8 </span><span class="subxComment"># Expected result:</span>
+<span id="L9" class="LineNr"> 9 </span><span class="subxComment">#   $ echo $?</span>
+<span id="L10" class="LineNr">10 </span><span class="subxComment">#   2</span>
+<span id="L11" class="LineNr">11 </span><span class="subxComment">#</span>
+<span id="L12" class="LineNr">12 </span><span class="subxComment"># At the start of a SubX program:</span>
+<span id="L13" class="LineNr">13 </span><span class="subxComment">#   argc: *ESP</span>
+<span id="L14" class="LineNr">14 </span><span class="subxComment">#   argv[0]: *(ESP+4)</span>
+<span id="L15" class="LineNr">15 </span><span class="subxComment">#   argv[1]: *(ESP+8)</span>
+<span id="L16" class="LineNr">16 </span><span class="subxComment">#   ...</span>
+<span id="L17" class="LineNr">17 </span><span class="subxComment"># Locals start from ESP-4 downwards.</span>
 <span id="L18" class="LineNr">18 </span>
 <span id="L19" class="LineNr">19 </span>== code
-<span id="L20" class="LineNr">20 </span><span class="Comment"># instruction                     effective address                                                   operand     displacement    immediate</span>
-<span id="L21" class="LineNr">21 </span><span class="Comment"># op          subop               mod             rm32          base        index         scale       r32</span>
-<span id="L22" class="LineNr">22 </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 class="subxComment"># instruction                     effective address                                                   operand     displacement    immediate</span>
+<span id="L21" class="LineNr">21 </span><span class="subxComment"># op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L22" class="LineNr">22 </span><span class="subxComment"># 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="L23" class="LineNr">23 </span>
-<span id="L24" class="LineNr">24 </span>  <span class="Comment"># prolog</span>
-<span id="L25" class="LineNr">25 </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="L26" class="LineNr">26 </span>  <span class="Comment"># call ascii-difference(argv[1], argv[2])</span>
-<span id="L27" class="LineNr">27 </span>    <span class="Comment"># push argv[2]</span>
-<span id="L28" class="LineNr">28 </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="L29" class="LineNr">29 </span>    <span class="Comment"># push argv[1]</span>
-<span id="L30" class="LineNr">30 </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>          0x8/disp8      <span class="Delimiter"> . </span>                <span class="Comment"># push *(EBP+8)</span>
-<span id="L31" class="LineNr">31 </span>    <span class="Comment"># call</span>
+<span id="L24" class="LineNr">24 </span>  <span class="subxComment"># prolog</span>
+<span id="L25" class="LineNr">25 </span>  89/copy                         3/mod/direct    5/rm32/EBP   <span class="CommentedCode"> . </span>         <span class="CommentedCode"> . </span>           <span class="CommentedCode"> . </span>          4/r32/ESP  <span class="CommentedCode"> . </span>             <span class="CommentedCode"> . </span>                <span class="subxComment"># copy ESP to EBP</span>
+<span id="L26" class="LineNr">26 </span>  <span class="subxComment"># call ascii-difference(argv[1], argv[2])</span>
+<span id="L27" class="LineNr">27 </span>    <span class="subxComment"># push argv[2]</span>
+<span id="L28" class="LineNr">28 </span>  ff          6/subop/push        1/mod/*+disp8   4/rm32/sib    5/base/EBP  4/index/none <span class="CommentedCode"> . </span>         <span class="CommentedCode"> . </span>          0xc/disp8      <span class="CommentedCode"> . </span>                <span class="subxComment"># push *(EBP+12)</span>
+<span id="L29" class="LineNr">29 </span>    <span class="subxComment"># push argv[1]</span>
+<span id="L30" class="LineNr">30 </span>  ff          6/subop/push        1/mod/*+disp8   4/rm32/sib    5/base/EBP  4/index/none <span class="CommentedCode"> . </span>         <span class="CommentedCode"> . </span>          0x8/disp8      <span class="CommentedCode"> . </span>                <span class="subxComment"># push *(EBP+8)</span>
+<span id="L31" class="LineNr">31 </span>    <span class="subxComment"># call</span>
 <span id="L32" class="LineNr">32 </span>  e8/call  ascii-difference/disp32
-<span id="L33" class="LineNr">33 </span>    <span class="Comment"># discard args</span>
-<span id="L34" class="LineNr">34 </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="L35" class="LineNr">35 </span>  <span class="Comment"># exit(EAX)</span>
-<span id="L36" class="LineNr">36 </span>  89/copy                         3/mod/direct    3/rm32/EBX   <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>          0/r32/EAX  <span class="Delimiter"> . </span>             <span class="Delimiter"> . </span>                <span class="Comment"># copy EAX to EBX</span>
+<span id="L33" class="LineNr">33 </span>    <span class="subxComment"># discard args</span>
+<span id="L34" class="LineNr">34 </span>  81          0/subop/add         3/mod/direct    4/rm32/ESP   <span class="CommentedCode"> . </span>         <span class="CommentedCode"> . </span>           <span class="CommentedCode"> . </span>         <span class="CommentedCode"> . </span>         <span class="CommentedCode"> . </span>              8/imm32           <span class="subxComment"># add to ESP</span>
+<span id="L35" class="LineNr">35 </span>  <span class="subxComment"># exit(EAX)</span>
+<span id="L36" class="LineNr">36 </span>  89/copy                         3/mod/direct    3/rm32/EBX   <span class="CommentedCode"> . </span>         <span class="CommentedCode"> . </span>           <span class="CommentedCode"> . </span>          0/r32/EAX  <span class="CommentedCode"> . </span>             <span class="CommentedCode"> . </span>                <span class="subxComment"># copy EAX to EBX</span>
 <span id="L37" class="LineNr">37 </span>  b8/copy-to-EAX  1/imm32/exit
 <span id="L38" class="LineNr">38 </span>  cd/syscall  0x80/imm8
 <span id="L39" class="LineNr">39 </span>
-<span id="L40" class="LineNr">40 </span>ascii-difference:  <span class="Comment"># (s1, s2) : null-terminated ascii strings</span>
-<span id="L41" class="LineNr">41 </span>  <span class="Comment"># a = first letter of s1 (ECX)</span>
-<span id="L42" class="LineNr">42 </span>  8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none              0/r32/EAX   4/disp8        <span class="Delimiter"> . </span>                <span class="Comment"># copy *(ESP+4) to EAX</span>
-<span id="L43" class="LineNr">43 </span>  8b/copy                         0/mod/indirect  0/rm32/EAX   <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>          0/r32/EAX  <span class="Delimiter"> . </span>             <span class="Delimiter"> . </span>                <span class="Comment"># copy *EAX to EAX</span>
-<span id="L44" class="LineNr">44 </span>  <span class="Comment"># b = first letter of s2 (EDX)</span>
-<span id="L45" class="LineNr">45 </span>  8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none              1/r32/ECX   8/disp8                           <span class="Comment"># copy *(ESP+8) to ECX</span>
-<span id="L46" class="LineNr">46 </span>  8b/copy                         0/mod/indirect  1/rm32/ECX   <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>          1/r32/ECX  <span class="Delimiter"> . </span>             <span class="Delimiter"> . </span>                <span class="Comment"># copy *ECX to ECX</span>
-<span id="L47" class="LineNr">47 </span>  <span class="Comment"># a-b</span>
-<span id="L48" class="LineNr">48 </span>  29/subtract                     3/mod/direct    0/rm32/EAX   <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>          1/r32/ECX  <span class="Delimiter"> . </span>             <span class="Delimiter"> . </span>                <span class="Comment"># subtract ECX from EAX</span>
+<span id="L40" class="LineNr">40 </span>ascii-difference:  <span class="subxComment"># (s1, s2) : null-terminated ascii strings</span>
+<span id="L41" class="LineNr">41 </span>  <span class="subxComment"># a = first letter of s1 (ECX)</span>
+<span id="L42" class="LineNr">42 </span>  8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none              0/r32/EAX   4/disp8        <span class="CommentedCode"> . </span>                <span class="subxComment"># copy *(ESP+4) to EAX</span>
+<span id="L43" class="LineNr">43 </span>  8b/copy                         0/mod/indirect  0/rm32/EAX   <span class="CommentedCode"> . </span>         <span class="CommentedCode"> . </span>           <span class="CommentedCode"> . </span>          0/r32/EAX  <span class="CommentedCode"> . </span>             <span class="CommentedCode"> . </span>                <span class="subxComment"># copy *EAX to EAX</span>
+<span id="L44" class="LineNr">44 </span>  <span class="subxComment"># b = first letter of s2 (EDX)</span>
+<span id="L45" class="LineNr">45 </span>  8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none              1/r32/ECX   8/disp8                           <span class="subxComment"># copy *(ESP+8) to ECX</span>
+<span id="L46" class="LineNr">46 </span>  8b/copy                         0/mod/indirect  1/rm32/ECX   <span class="CommentedCode"> . </span>         <span class="CommentedCode"> . </span>           <span class="CommentedCode"> . </span>          1/r32/ECX  <span class="CommentedCode"> . </span>             <span class="CommentedCode"> . </span>                <span class="subxComment"># copy *ECX to ECX</span>
+<span id="L47" class="LineNr">47 </span>  <span class="subxComment"># a-b</span>
+<span id="L48" class="LineNr">48 </span>  29/subtract                     3/mod/direct    0/rm32/EAX   <span class="CommentedCode"> . </span>         <span class="CommentedCode"> . </span>           <span class="CommentedCode"> . </span>          1/r32/ECX  <span class="CommentedCode"> . </span>             <span class="CommentedCode"> . </span>                <span class="subxComment"># subtract ECX from EAX</span>
 <span id="L49" class="LineNr">49 </span>  c3/return
 <span id="L50" class="LineNr">50 </span>
-<span id="L51" class="LineNr">51 </span><span class="Comment"># vim&#0058;nowrap:textwidth=0</span>
+<span id="L51" class="LineNr">51 </span><span class="subxComment"># vim&#0058;nowrap:textwidth=0</span>
 </pre>
 </body>
 </html>