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authorKartik Agaram <vc@akkartik.com>2019-02-05 23:30:12 -0800
committerKartik Agaram <vc@akkartik.com>2019-02-05 23:30:12 -0800
commit6e181e7fd998a0d542cb531c929c905a243ea2f6 (patch)
tree8ddf150f1a48da93e28c60ebe2dde9bf2264421d /html/subx/062write-stream.subx.html
parentf070557859fd1e8396d8bdbdc3ba6162c1d7e118 (diff)
downloadmu-6e181e7fd998a0d542cb531c929c905a243ea2f6.tar.gz
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+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="subxComment"># write-stream: like write, but write streams rather than strings</span>
+<span id="L2" class="LineNr">  2 </span>
+<span id="L3" class="LineNr">  3 </span>== code
+<span id="L4" class="LineNr">  4 </span><span class="subxComment">#   instruction                     effective address                                                   register    displacement    immediate</span>
+<span id="L5" class="LineNr">  5 </span><span class="subxS1Comment"># . op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L6" class="LineNr">  6 </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="L7" class="LineNr">  7 </span>
+<span id="L8" class="LineNr">  8 </span><span class="subxComment"># main:</span>
+<span id="L9" class="LineNr">  9 </span>    <span class="subxComment"># manual test</span>
+<span id="L10" class="LineNr"> 10 </span><span class="CommentedCode">#?     # write-stream(stdout, _test-stream2)</span>
+<span id="L11" class="LineNr"> 11 </span><span class="CommentedCode">#?     68/push  _test-stream2/imm32</span>
+<span id="L12" class="LineNr"> 12 </span><span class="CommentedCode">#?     68/push  1/imm32/stdout</span>
+<span id="L13" class="LineNr"> 13 </span><span class="CommentedCode">#?     e8/call write-stream/disp32</span>
+<span id="L14" class="LineNr"> 14 </span>    <span class="subxComment"># automatic test</span>
+<span id="L15" class="LineNr"> 15 </span><span class="CommentedCode">#?     e8/call test-write-stream-single/disp32</span>
+<span id="L16" class="LineNr"> 16 </span>    e8/call  run-tests/disp32  <span class="subxComment"># 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.</span>
+<span id="L17" class="LineNr"> 17 </span>    <span class="subxComment"># syscall(exit, Num-test-failures)</span>
+<span id="L18" class="LineNr"> 18 </span>    8b/copy                         0/mod/indirect  5/rm32/.disp32           <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/EBX   <span class="SpecialChar"><a href='051test.subx.html#L90'>Num-test-failures</a></span>/disp32          <span class="subxComment"># copy *Num-test-failures to EBX</span>
+<span id="L19" class="LineNr"> 19 </span>    b8/copy-to-EAX  1/imm32/exit
+<span id="L20" class="LineNr"> 20 </span>    cd/syscall  0x80/imm8
+<span id="L21" class="LineNr"> 21 </span>
+<span id="L22" class="LineNr"> 22 </span><span class="subxFunction">write-stream</span>:  <span class="subxComment"># f : fd or (address stream), s : (address stream) -&gt; &lt;void&gt;</span>
+<span id="L23" class="LineNr"> 23 </span>    <span class="subxS1Comment"># . prolog</span>
+<span id="L24" class="LineNr"> 24 </span>    55/push-EBP
+<span id="L25" class="LineNr"> 25 </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="L26" class="LineNr"> 26 </span>    <span class="subxComment"># if (f &lt; 0x08000000) _write-stream(f, s), return  # f can't be a user-mode address, so treat it as a kernel file descriptor</span>
+<span id="L27" class="LineNr"> 27 </span>    81          7/subop/compare     1/mod/*+disp8   5/rm32/EBP   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          8/disp8         0x08000000/imm32  <span class="subxComment"># compare *(EBP+8)</span>
+<span id="L28" class="LineNr"> 28 </span>    7d/jump-if-greater-or-equal  $write-stream:fake/disp8
+<span id="L29" class="LineNr"> 29 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L30" class="LineNr"> 30 </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>          0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># push *(EBP+12)</span>
+<span id="L31" class="LineNr"> 31 </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="L32" class="LineNr"> 32 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L33" class="LineNr"> 33 </span>    e8/call  <a href='062write-stream.subx.html#L82'>_write-stream</a>/disp32
+<span id="L34" class="LineNr"> 34 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L35" class="LineNr"> 35 </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>              8/imm32           <span class="subxComment"># add to ESP</span>
+<span id="L36" class="LineNr"> 36 </span>    eb/jump  $write-stream:end/disp8
+<span id="L37" class="LineNr"> 37 </span><span class="Constant">$write-stream:fake</span>:
+<span id="L38" class="LineNr"> 38 </span>    <span class="subxComment"># otherwise, treat 'f' as a stream to append to</span>
+<span id="L39" class="LineNr"> 39 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L40" class="LineNr"> 40 </span>    50/push-EAX
+<span id="L41" class="LineNr"> 41 </span>    56/push-ESI
+<span id="L42" class="LineNr"> 42 </span>    57/push-EDI
+<span id="L43" class="LineNr"> 43 </span>    <span class="subxComment"># EDI = f</span>
+<span id="L44" class="LineNr"> 44 </span>    8b/copy                         1/mod/*+disp8   5/rm32/EBP   <span class="Normal"> . </span>         <span class="Normal"> . </span>                        7/r32/EDI   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(EBP+8) to EDI</span>
+<span id="L45" class="LineNr"> 45 </span>    <span class="subxComment"># ESI = s</span>
+<span id="L46" class="LineNr"> 46 </span>    8b/copy                         1/mod/*+disp8   5/rm32/EBP   <span class="Normal"> . </span>         <span class="Normal"> . </span>                        6/r32/ESI   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy *(EBP+12) to ESI</span>
+<span id="L47" class="LineNr"> 47 </span>    <span class="subxComment"># EAX = _append-4(&amp;f-&gt;data[f-&gt;write], &amp;f-&gt;data[f-&gt;length], &amp;s-&gt;data[s-&gt;read], &amp;s-&gt;data[s-&gt;write])</span>
+<span id="L48" class="LineNr"> 48 </span>    <span class="subxS2Comment"># . . push &amp;s-&gt;data[s-&gt;write]</span>
+<span id="L49" class="LineNr"> 49 </span>    8b/copy                         0/mod/indirect  6/rm32/ESI   <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 *ESI to EAX</span>
+<span id="L50" class="LineNr"> 50 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    6/base/ESI  0/index/EAX  <span class="Normal"> . </span>          0/r32/EAX   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy ESI+EAX+12 to EAX</span>
+<span id="L51" class="LineNr"> 51 </span>    50/push-EAX
+<span id="L52" class="LineNr"> 52 </span>    <span class="subxS2Comment"># . . push &amp;s-&gt;data[s-&gt;read]</span>
+<span id="L53" class="LineNr"> 53 </span>    8b/copy                         1/mod/*+disp8   6/rm32/ESI   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/EAX   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ESI+4) to EAX</span>
+<span id="L54" class="LineNr"> 54 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    6/base/ESI  0/index/EAX  <span class="Normal"> . </span>          0/r32/EAX   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy ESI+EAX+12 to EAX</span>
+<span id="L55" class="LineNr"> 55 </span>    50/push-EAX
+<span id="L56" class="LineNr"> 56 </span>    <span class="subxS2Comment"># . . push &amp;f-&gt;data[f-&gt;length]</span>
+<span id="L57" class="LineNr"> 57 </span>    8b/copy                         1/mod/*+disp8   7/rm32/EDI   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/EAX   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(EDI+8) to EAX</span>
+<span id="L58" class="LineNr"> 58 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    7/base/EDI  0/index/EAX  <span class="Normal"> . </span>          0/r32/EAX   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy EDI+EAX+12 to EAX</span>
+<span id="L59" class="LineNr"> 59 </span>    50/push-EAX
+<span id="L60" class="LineNr"> 60 </span>    <span class="subxS2Comment"># . . push &amp;f-&gt;data[f-&gt;write]</span>
+<span id="L61" class="LineNr"> 61 </span>    8b/copy                         0/mod/indirect  7/rm32/EDI   <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 *EDI to EAX</span>
+<span id="L62" class="LineNr"> 62 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    7/base/EDI  0/index/EAX  <span class="Normal"> . </span>          0/r32/EAX   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy EDI+EAX+12 to EAX</span>
+<span id="L63" class="LineNr"> 63 </span>    50/push-EAX
+<span id="L64" class="LineNr"> 64 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L65" class="LineNr"> 65 </span>    e8/call  <a href='056trace.subx.html#L310'>_append-4</a>/disp32
+<span id="L66" class="LineNr"> 66 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L67" class="LineNr"> 67 </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>              0x10/imm32        <span class="subxComment"># add to ESP</span>
+<span id="L68" class="LineNr"> 68 </span>    <span class="subxComment"># f-&gt;write += EAX</span>
+<span id="L69" class="LineNr"> 69 </span>    01/add                          0/mod/indirect  7/rm32/EDI   <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"># add EAX to *EDI</span>
+<span id="L70" class="LineNr"> 70 </span>    <span class="subxComment"># s-&gt;read += EAX</span>
+<span id="L71" class="LineNr"> 71 </span>    01/add                          1/mod/*+disp8   6/rm32/ESI   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/EAX   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># add EAX to *(ESI+4)</span>
+<span id="L72" class="LineNr"> 72 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L73" class="LineNr"> 73 </span>    5f/pop-to-EDI
+<span id="L74" class="LineNr"> 74 </span>    5e/pop-to-ESI
+<span id="L75" class="LineNr"> 75 </span>    58/pop-to-EAX
+<span id="L76" class="LineNr"> 76 </span><span class="Constant">$write-stream:end</span>:
+<span id="L77" class="LineNr"> 77 </span>    <span class="subxS1Comment"># . epilog</span>
+<span id="L78" class="LineNr"> 78 </span>    89/copy                         3/mod/direct    4/rm32/ESP   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/EBP  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy EBP to ESP</span>
+<span id="L79" class="LineNr"> 79 </span>    5d/pop-to-EBP
+<span id="L80" class="LineNr"> 80 </span>    c3/return
+<span id="L81" class="LineNr"> 81 </span>
+<span id="L82" class="LineNr"> 82 </span><span class="subxMinorFunction">_write-stream</span>:  <span class="subxComment"># fd : int, s : (address stream) -&gt; &lt;void&gt;</span>
+<span id="L83" class="LineNr"> 83 </span>    <span class="subxS1Comment"># . prolog</span>
+<span id="L84" class="LineNr"> 84 </span>    55/push-EBP
+<span id="L85" class="LineNr"> 85 </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="L86" class="LineNr"> 86 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L87" class="LineNr"> 87 </span>    50/push-EAX
+<span id="L88" class="LineNr"> 88 </span>    51/push-ECX
+<span id="L89" class="LineNr"> 89 </span>    52/push-EDX
+<span id="L90" class="LineNr"> 90 </span>    53/push-EBX
+<span id="L91" class="LineNr"> 91 </span>    56/push-ESI
+<span id="L92" class="LineNr"> 92 </span>    57/push-EDI
+<span id="L93" class="LineNr"> 93 </span>    <span class="subxComment"># ESI = s</span>
+<span id="L94" class="LineNr"> 94 </span>    8b/copy                         1/mod/*+disp8   5/rm32/EBP   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          6/r32/ESI   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy *(EBP+12) to ESI</span>
+<span id="L95" class="LineNr"> 95 </span>    <span class="subxComment"># EDI = s-&gt;read</span>
+<span id="L96" class="LineNr"> 96 </span>    8b/copy                         1/mod/*+disp8   6/rm32/ESI   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          7/r32/EDI   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ESI+4) to EDI</span>
+<span id="L97" class="LineNr"> 97 </span>    <span class="subxComment"># EDX = s-&gt;write</span>
+<span id="L98" class="LineNr"> 98 </span>    8b/copy                         0/mod/indirect  6/rm32/ESI   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/EDX  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *ESI to EDX</span>
+<span id="L99" class="LineNr"> 99 </span>    <span class="subxComment"># syscall(write, fd, &amp;s-&gt;data[s-&gt;read], s-&gt;write - s-&gt;read)</span>
+<span id="L100" class="LineNr">100 </span>    <span class="subxS2Comment"># . . fd : EBX</span>
+<span id="L101" class="LineNr">101 </span>    8b/copy                         1/mod/*+disp8   5/rm32/EBP   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/EBX   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(EBP+8) to EBX</span>
+<span id="L102" class="LineNr">102 </span>    <span class="subxS2Comment"># . . data : ECX = &amp;s-&gt;data[s-&gt;read]</span>
+<span id="L103" class="LineNr">103 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    6/base/ESI  7/index/EDI  <span class="Normal"> . </span>          1/r32/ECX   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy ESI+EDI+12 to ECX</span>
+<span id="L104" class="LineNr">104 </span>    <span class="subxS2Comment"># . . size : EDX = s-&gt;write - s-&gt;read</span>
+<span id="L105" class="LineNr">105 </span>    29/subtract                     3/mod/direct    2/rm32/EDX   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          7/r32/EDI  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># subtract EDI from EDX</span>
+<span id="L106" class="LineNr">106 </span>    <span class="subxS2Comment"># . . syscall</span>
+<span id="L107" class="LineNr">107 </span>    b8/copy-to-EAX  4/imm32/write
+<span id="L108" class="LineNr">108 </span>    cd/syscall  0x80/imm8
+<span id="L109" class="LineNr">109 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L110" class="LineNr">110 </span>    5f/pop-to-EDI
+<span id="L111" class="LineNr">111 </span>    5e/pop-to-ESI
+<span id="L112" class="LineNr">112 </span>    5b/pop-to-EBX
+<span id="L113" class="LineNr">113 </span>    5a/pop-to-EDX
+<span id="L114" class="LineNr">114 </span>    59/pop-to-ECX
+<span id="L115" class="LineNr">115 </span>    58/pop-to-EAX
+<span id="L116" class="LineNr">116 </span>    <span class="subxS1Comment"># . epilog</span>
+<span id="L117" class="LineNr">117 </span>    89/copy                         3/mod/direct    4/rm32/ESP   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/EBP  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy EBP to ESP</span>
+<span id="L118" class="LineNr">118 </span>    5d/pop-to-EBP
+<span id="L119" class="LineNr">119 </span>    c3/return
+<span id="L120" class="LineNr">120 </span>
+<span id="L121" class="LineNr">121 </span><span class="subxTest">test-write-stream-single</span>:
+<span id="L122" class="LineNr">122 </span>    <span class="subxComment"># setup</span>
+<span id="L123" class="LineNr">123 </span>    <span class="subxS1Comment"># . clear-stream(_test-stream)</span>
+<span id="L124" class="LineNr">124 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L125" class="LineNr">125 </span>    68/push  <a href='057write.subx.html#L155'>_test-stream</a>/imm32
+<span id="L126" class="LineNr">126 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L127" class="LineNr">127 </span>    e8/call  <a href='055stream.subx.html#L24'>clear-stream</a>/disp32
+<span id="L128" class="LineNr">128 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L129" class="LineNr">129 </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="L130" class="LineNr">130 </span>    <span class="subxS1Comment"># . clear-stream(_test-stream2)</span>
+<span id="L131" class="LineNr">131 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L132" class="LineNr">132 </span>    68/push  <a href='062write-stream.subx.html#L229'>_test-stream2</a>/imm32
+<span id="L133" class="LineNr">133 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L134" class="LineNr">134 </span>    e8/call  <a href='055stream.subx.html#L24'>clear-stream</a>/disp32
+<span id="L135" class="LineNr">135 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L136" class="LineNr">136 </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="L137" class="LineNr">137 </span>    <span class="subxS1Comment"># . write(_test-stream2, &quot;Ab&quot;)</span>
+<span id="L138" class="LineNr">138 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L139" class="LineNr">139 </span>    68/push  <span class="Constant">&quot;Ab&quot;</span>/imm32
+<span id="L140" class="LineNr">140 </span>    68/push  <a href='062write-stream.subx.html#L229'>_test-stream2</a>/imm32
+<span id="L141" class="LineNr">141 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L142" class="LineNr">142 </span>    e8/call  <a href='057write.subx.html#L31'>write</a>/disp32
+<span id="L143" class="LineNr">143 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L144" class="LineNr">144 </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>              8/imm32           <span class="subxComment"># add to ESP</span>
+<span id="L145" class="LineNr">145 </span>    <span class="subxComment"># write-stream(_test-stream, _test-stream2)</span>
+<span id="L146" class="LineNr">146 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L147" class="LineNr">147 </span>    68/push  <a href='062write-stream.subx.html#L229'>_test-stream2</a>/imm32
+<span id="L148" class="LineNr">148 </span>    68/push  <a href='057write.subx.html#L155'>_test-stream</a>/imm32
+<span id="L149" class="LineNr">149 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L150" class="LineNr">150 </span>    e8/call  <a href='062write-stream.subx.html#L22'>write-stream</a>/disp32
+<span id="L151" class="LineNr">151 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L152" class="LineNr">152 </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>              8/imm32           <span class="subxComment"># add to ESP</span>
+<span id="L153" class="LineNr">153 </span>    <span class="subxComment"># check-stream-equal(_test-stream, &quot;Ab&quot;, msg)</span>
+<span id="L154" class="LineNr">154 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L155" class="LineNr">155 </span>    68/push  <span class="Constant">&quot;F - test-write-stream-single&quot;</span>/imm32
+<span id="L156" class="LineNr">156 </span>    68/push  <span class="Constant">&quot;Ab&quot;</span>/imm32
+<span id="L157" class="LineNr">157 </span>    68/push  <a href='057write.subx.html#L155'>_test-stream</a>/imm32
+<span id="L158" class="LineNr">158 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L159" class="LineNr">159 </span>    e8/call  <a href='058stream-equal.subx.html#L199'>check-stream-equal</a>/disp32
+<span id="L160" class="LineNr">160 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L161" class="LineNr">161 </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>              0xc/imm32         <span class="subxComment"># add to ESP</span>
+<span id="L162" class="LineNr">162 </span>    <span class="subxS1Comment"># . end</span>
+<span id="L163" class="LineNr">163 </span>    c3/return
+<span id="L164" class="LineNr">164 </span>
+<span id="L165" class="LineNr">165 </span><span class="subxTest">test-write-stream-appends</span>:
+<span id="L166" class="LineNr">166 </span>    <span class="subxComment"># setup</span>
+<span id="L167" class="LineNr">167 </span>    <span class="subxS1Comment"># . clear-stream(_test-stream)</span>
+<span id="L168" class="LineNr">168 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L169" class="LineNr">169 </span>    68/push  <a href='057write.subx.html#L155'>_test-stream</a>/imm32
+<span id="L170" class="LineNr">170 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L171" class="LineNr">171 </span>    e8/call  <a href='055stream.subx.html#L24'>clear-stream</a>/disp32
+<span id="L172" class="LineNr">172 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L173" class="LineNr">173 </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="L174" class="LineNr">174 </span>    <span class="subxS1Comment"># . clear-stream(_test-stream2)</span>
+<span id="L175" class="LineNr">175 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L176" class="LineNr">176 </span>    68/push  <a href='062write-stream.subx.html#L229'>_test-stream2</a>/imm32
+<span id="L177" class="LineNr">177 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L178" class="LineNr">178 </span>    e8/call  <a href='055stream.subx.html#L24'>clear-stream</a>/disp32
+<span id="L179" class="LineNr">179 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L180" class="LineNr">180 </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="L181" class="LineNr">181 </span>    <span class="subxS1Comment"># . write(_test-stream2, &quot;C&quot;)</span>
+<span id="L182" class="LineNr">182 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L183" class="LineNr">183 </span>    68/push  <span class="Constant">&quot;C&quot;</span>/imm32
+<span id="L184" class="LineNr">184 </span>    68/push  <a href='062write-stream.subx.html#L229'>_test-stream2</a>/imm32
+<span id="L185" class="LineNr">185 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L186" class="LineNr">186 </span>    e8/call  <a href='057write.subx.html#L31'>write</a>/disp32
+<span id="L187" class="LineNr">187 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L188" class="LineNr">188 </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>              8/imm32           <span class="subxComment"># add to ESP</span>
+<span id="L189" class="LineNr">189 </span>    <span class="subxComment"># first write</span>
+<span id="L190" class="LineNr">190 </span>    <span class="subxS1Comment"># . write-stream(_test-stream, _test-stream2)</span>
+<span id="L191" class="LineNr">191 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L192" class="LineNr">192 </span>    68/push  <a href='062write-stream.subx.html#L229'>_test-stream2</a>/imm32
+<span id="L193" class="LineNr">193 </span>    68/push  <a href='057write.subx.html#L155'>_test-stream</a>/imm32
+<span id="L194" class="LineNr">194 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L195" class="LineNr">195 </span>    e8/call  <a href='062write-stream.subx.html#L22'>write-stream</a>/disp32
+<span id="L196" class="LineNr">196 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L197" class="LineNr">197 </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>              8/imm32           <span class="subxComment"># add to ESP</span>
+<span id="L198" class="LineNr">198 </span>    <span class="subxComment"># second write</span>
+<span id="L199" class="LineNr">199 </span>    <span class="subxS1Comment"># . write(_test-stream2, &quot;D&quot;)</span>
+<span id="L200" class="LineNr">200 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L201" class="LineNr">201 </span>    68/push  <span class="Constant">&quot;D&quot;</span>/imm32
+<span id="L202" class="LineNr">202 </span>    68/push  <a href='062write-stream.subx.html#L229'>_test-stream2</a>/imm32
+<span id="L203" class="LineNr">203 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L204" class="LineNr">204 </span>    e8/call  <a href='057write.subx.html#L31'>write</a>/disp32
+<span id="L205" class="LineNr">205 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L206" class="LineNr">206 </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>              8/imm32           <span class="subxComment"># add to ESP</span>
+<span id="L207" class="LineNr">207 </span>    <span class="subxS1Comment"># . write-stream(_test-stream, _test-stream2)</span>
+<span id="L208" class="LineNr">208 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L209" class="LineNr">209 </span>    68/push  <a href='062write-stream.subx.html#L229'>_test-stream2</a>/imm32
+<span id="L210" class="LineNr">210 </span>    68/push  <a href='057write.subx.html#L155'>_test-stream</a>/imm32
+<span id="L211" class="LineNr">211 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L212" class="LineNr">212 </span>    e8/call  <a href='062write-stream.subx.html#L22'>write-stream</a>/disp32
+<span id="L213" class="LineNr">213 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L214" class="LineNr">214 </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>              8/imm32           <span class="subxComment"># add to ESP</span>
+<span id="L215" class="LineNr">215 </span>    <span class="subxComment"># check-stream-equal(_test-stream, &quot;CD&quot;, msg)</span>
+<span id="L216" class="LineNr">216 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L217" class="LineNr">217 </span>    68/push  <span class="Constant">&quot;F - test-write-stream-appends&quot;</span>/imm32
+<span id="L218" class="LineNr">218 </span>    68/push  <span class="Constant">&quot;CD&quot;</span>/imm32
+<span id="L219" class="LineNr">219 </span>    68/push  <a href='057write.subx.html#L155'>_test-stream</a>/imm32
+<span id="L220" class="LineNr">220 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L221" class="LineNr">221 </span>    e8/call  <a href='058stream-equal.subx.html#L199'>check-stream-equal</a>/disp32
+<span id="L222" class="LineNr">222 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L223" class="LineNr">223 </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>              0xc/imm32         <span class="subxComment"># add to ESP</span>
+<span id="L224" class="LineNr">224 </span>    <span class="subxS1Comment"># . end</span>
+<span id="L225" class="LineNr">225 </span>    c3/return
+<span id="L226" class="LineNr">226 </span>
+<span id="L227" class="LineNr">227 </span>== data
+<span id="L228" class="LineNr">228 </span>
+<span id="L229" class="LineNr">229 </span><span class="subxMinorFunction">_test-stream2</span>:
+<span id="L230" class="LineNr">230 </span>    <span class="subxComment"># current write index</span>
+<span id="L231" class="LineNr">231 </span>    04 00 00 00
+<span id="L232" class="LineNr">232 </span>    <span class="subxComment"># current read index</span>
+<span id="L233" class="LineNr">233 </span>    01 00 00 00
+<span id="L234" class="LineNr">234 </span>    <span class="subxComment"># length (= 8)</span>
+<span id="L235" class="LineNr">235 </span>    08 00 00 00
+<span id="L236" class="LineNr">236 </span>    <span class="subxComment"># data</span>
+<span id="L237" class="LineNr">237 </span>    41 42 43 44 00 00 00 00  <span class="subxComment"># 8 bytes</span>
+<span id="L238" class="LineNr">238 </span>
+<span id="L239" class="LineNr">239 </span><span class="subxS2Comment"># . . vim&#0058;nowrap:textwidth=0</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->