1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
<!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/051test.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,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
<meta name="colorscheme" content="minimal">
<style type="text/css">
<!--
pre { font-family: monospace; color: #aaaaaa; background-color: #080808; }
body { font-size:12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
.subxS2Comment a { color:inherit; }
.subxS1Comment a { color:inherit; }
.subxComment a { color:inherit; }
.subxH2Comment a { color:inherit; }
.subxH1Comment a { color:inherit; }
* { font-size:12pt; font-size: 1em; }
.subxComment { color:#16bfff; }
.subxS2Comment { color:#4466ff; }
.LineNr { color:#444444; }
.subxS1Comment { color:#2d8cff; }
.CommentedCode { color: #6c6c6c; }
.Constant { color:#00a0a0; }
.SpecialChar { color: #ff0000; }
-->
</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="subxComment"># Rudimentary test harness</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: (manual test if this is the last file loaded)</span>
<span id="L9" class="LineNr"> 9 </span> <span class="subxComment"># check-ints-equal(34, 34)</span>
<span id="L10" class="LineNr">10 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L11" class="LineNr">11 </span> 68/push <span class="Constant">"error in check-ints-equal"</span>/imm32
<span id="L12" class="LineNr">12 </span> 68/push 34/imm32
<span id="L13" class="LineNr">13 </span> 68/push 34/imm32
<span id="L14" class="LineNr">14 </span> <span class="subxS2Comment"># . . call</span>
<span id="L15" class="LineNr">15 </span> e8/call check-ints-equal/disp32
<span id="L16" class="LineNr">16 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L17" class="LineNr">17 </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> 0xc/imm32 <span class="subxComment"># add to ESP</span>
<span id="L18" class="LineNr">18 </span> <span class="subxComment"># syscall(exit, 0)</span>
<span id="L19" class="LineNr">19 </span> bb/copy-to-EBX 0/imm32
<span id="L20" class="LineNr">20 </span> b8/copy-to-EAX 1/imm32/exit
<span id="L21" class="LineNr">21 </span> cd/syscall 0x80/imm8
<span id="L22" class="LineNr">22 </span>
<span id="L23" class="LineNr">23 </span><span class="subxComment"># print msg to stderr if a != b, otherwise print "."</span>
<span id="L24" class="LineNr">24 </span>check-ints-equal: <span class="subxComment"># (a : int, b : int, msg : (address array byte)) -> boolean</span>
<span id="L25" class="LineNr">25 </span> <span class="subxS1Comment"># . prolog</span>
<span id="L26" class="LineNr">26 </span> 55/push-EBP
<span id="L27" class="LineNr">27 </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="L28" class="LineNr">28 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L29" class="LineNr">29 </span> 51/push-ECX
<span id="L30" class="LineNr">30 </span> 53/push-EBX
<span id="L31" class="LineNr">31 </span> <span class="subxComment"># load first 2 args into EAX and EBX</span>
<span id="L32" class="LineNr">32 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> 0/r32/EAX 0x8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># copy *(EBP+8) to EAX</span>
<span id="L33" class="LineNr">33 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> 3/r32/EBX 0xc/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># copy *(EBP+12) to EBX</span>
<span id="L34" class="LineNr">34 </span> <span class="subxComment"># if EAX == EBX success</span>
<span id="L35" class="LineNr">35 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 3/r32/EBX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># compare EAX and EBX</span>
<span id="L36" class="LineNr">36 </span> 75/jump-if-unequal $check-ints-equal:else/disp8
<span id="L37" class="LineNr">37 </span> <span class="subxS1Comment"># . _write(2/stderr, '.')</span>
<span id="L38" class="LineNr">38 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L39" class="LineNr">39 </span> 68/push <span class="Constant">"."</span>/imm32
<span id="L40" class="LineNr">40 </span> 68/push 2/imm32/stderr
<span id="L41" class="LineNr">41 </span> <span class="subxS2Comment"># . . call</span>
<span id="L42" class="LineNr">42 </span> e8/call _write/disp32
<span id="L43" class="LineNr">43 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L44" class="LineNr">44 </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="L45" class="LineNr">45 </span> <span class="subxS1Comment"># . return</span>
<span id="L46" class="LineNr">46 </span> eb/jump $check-ints-equal:end/disp8
<span id="L47" class="LineNr">47 </span> <span class="subxComment"># otherwise print error message</span>
<span id="L48" class="LineNr">48 </span>$check-ints-equal:else:
<span id="L49" class="LineNr">49 </span> <span class="subxS1Comment"># . _write(2/stderr, msg)</span>
<span id="L50" class="LineNr">50 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L51" class="LineNr">51 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> 1/r32/ECX 0x10/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># copy *(EBP+16) to ECX</span>
<span id="L52" class="LineNr">52 </span> 51/push-ECX
<span id="L53" class="LineNr">53 </span> 68/push 2/imm32/stderr
<span id="L54" class="LineNr">54 </span> <span class="subxS2Comment"># . . call</span>
<span id="L55" class="LineNr">55 </span> e8/call _write/disp32
<span id="L56" class="LineNr">56 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L57" class="LineNr">57 </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="L58" class="LineNr">58 </span> <span class="subxS1Comment"># . _write(2/stderr, Newline)</span>
<span id="L59" class="LineNr">59 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L60" class="LineNr">60 </span> 68/push <span class="SpecialChar"> Newline</span>/imm32
<span id="L61" class="LineNr">61 </span> 68/push 2/imm32/stderr
<span id="L62" class="LineNr">62 </span> <span class="subxS2Comment"># . . call</span>
<span id="L63" class="LineNr">63 </span> e8/call _write/disp32
<span id="L64" class="LineNr">64 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L65" class="LineNr">65 </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="L66" class="LineNr">66 </span> <span class="subxComment"># increment Num-test-failures</span>
<span id="L67" class="LineNr">67 </span> ff 0/subop/increment 0/mod/indirect 5/rm32/.disp32 <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="SpecialChar"> Num-test-failures</span>/disp32 <span class="subxComment"># increment *Num-test-failures</span>
<span id="L68" class="LineNr">68 </span>$check-ints-equal:end:
<span id="L69" class="LineNr">69 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L70" class="LineNr">70 </span> 5b/pop-to-EBX
<span id="L71" class="LineNr">71 </span> 59/pop-to-ECX
<span id="L72" class="LineNr">72 </span> <span class="subxS1Comment"># . epilog</span>
<span id="L73" class="LineNr">73 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 5/r32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy EBP to ESP</span>
<span id="L74" class="LineNr">74 </span> 5d/pop-to-EBP
<span id="L75" class="LineNr">75 </span> c3/return
<span id="L76" class="LineNr">76 </span>
<span id="L77" class="LineNr">77 </span>== data
<span id="L78" class="LineNr">78 </span>
<span id="L79" class="LineNr">79 </span><span class="SpecialChar">Newline</span>:
<span id="L80" class="LineNr">80 </span> <span class="subxComment"># size</span>
<span id="L81" class="LineNr">81 </span> 01 00 00 00
<span id="L82" class="LineNr">82 </span> <span class="subxComment"># data</span>
<span id="L83" class="LineNr">83 </span> 0a/newline
<span id="L84" class="LineNr">84 </span>
<span id="L85" class="LineNr">85 </span><span class="SpecialChar">Num-test-failures</span>:
<span id="L86" class="LineNr">86 </span> 00 00 00 00
<span id="L87" class="LineNr">87 </span>
<span id="L88" class="LineNr">88 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|