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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
<!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 - 057write.subx</title>
<meta name="Generator" content="Vim/8.1">
<meta name="plugin-version" content="vim8.1_v1">
<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-light">
<style type="text/css">
<!--
pre { font-family: monospace; color: #000000; background-color: #c6c6c6; }
body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
a { color:inherit; }
* { font-size:12pt; font-size: 1em; }
.subxComment { color: #005faf; }
.subxS2Comment { color: #8a8a8a; }
.LineNr { }
.subxS1Comment { color: #0000af; }
.subxFunction { color: #af5f00; text-decoration: underline; }
.Normal { color: #000000; background-color: #c6c6c6; padding-bottom: 1px; }
.subxMinorFunction { color: #875f5f; }
.Constant { color: #008787; }
.subxTest { color: #5f8700; }
-->
</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;
}
var 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();'>
<a href='https://github.com/akkartik/mu/blob/master/057write.subx'>https://github.com/akkartik/mu/blob/master/057write.subx</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># write: like _write, but also support in-memory streams in addition to file</span>
<span id="L2" class="LineNr"> 2 </span><span class="subxComment"># descriptors.</span>
<span id="L3" class="LineNr"> 3 </span><span class="subxComment">#</span>
<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># Our first dependency-injected and testable primitive. We can pass it either</span>
<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># a file descriptor or an address to a stream. If a file descriptor is passed</span>
<span id="L6" class="LineNr"> 6 </span><span class="subxComment"># in, we _write to it using the right syscall. If a 'fake file descriptor' or</span>
<span id="L7" class="LineNr"> 7 </span><span class="subxComment"># stream is passed in, we append to the stream. This lets us redirect output</span>
<span id="L8" class="LineNr"> 8 </span><span class="subxComment"># in tests and check it later.</span>
<span id="L9" class="LineNr"> 9 </span><span class="subxComment">#</span>
<span id="L10" class="LineNr"> 10 </span><span class="subxComment"># We assume our data segment will never begin at an address shorter than</span>
<span id="L11" class="LineNr"> 11 </span><span class="subxComment"># 0x08000000, so any smaller arguments are assumed to be real file descriptors.</span>
<span id="L12" class="LineNr"> 12 </span><span class="subxComment">#</span>
<span id="L13" class="LineNr"> 13 </span><span class="subxComment"># A stream looks like this:</span>
<span id="L14" class="LineNr"> 14 </span><span class="subxComment"># read: int # index at which to read next</span>
<span id="L15" class="LineNr"> 15 </span><span class="subxComment"># write: int # index at which writes go</span>
<span id="L16" class="LineNr"> 16 </span><span class="subxComment"># data: (array byte) # prefixed by length as usual</span>
<span id="L17" class="LineNr"> 17 </span>
<span id="L18" class="LineNr"> 18 </span>== code
<span id="L19" class="LineNr"> 19 </span><span class="subxComment"># instruction effective address register displacement immediate</span>
<span id="L20" class="LineNr"> 20 </span><span class="subxS1Comment"># . op subop mod rm32 base index scale r32</span>
<span id="L21" class="LineNr"> 21 </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="L22" class="LineNr"> 22 </span>
<span id="L23" class="LineNr"> 23 </span><span class="subxComment"># TODO: come up with a way to signal when a write to disk fails</span>
<span id="L24" class="LineNr"> 24 </span><span class="subxFunction">write</span>: <span class="subxComment"># f: fd or (addr stream byte), s: (addr array byte)</span>
<span id="L25" class="LineNr"> 25 </span> <span class="subxS1Comment"># . prologue</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="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="L28" class="LineNr"> 28 </span> <span class="subxComment"># if (f < 0x08000000) _write(f, s) and return # f can't be a user-mode address, so treat it as a kernel file descriptor</span>
<span id="L29" class="LineNr"> 29 </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="L30" class="LineNr"> 30 </span> 73/jump-if-addr>= $write:fake/disp8
<span id="L31" class="LineNr"> 31 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L32" class="LineNr"> 32 </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="L33" class="LineNr"> 33 </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="L34" class="LineNr"> 34 </span> <span class="subxS2Comment"># . . call</span>
<span id="L35" class="LineNr"> 35 </span> e8/call <a href='050_write.subx.html#L14'>_write</a>/disp32
<span id="L36" class="LineNr"> 36 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L37" class="LineNr"> 37 </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="L38" class="LineNr"> 38 </span> eb/jump $write:end/disp8
<span id="L39" class="LineNr"> 39 </span><span class="Constant">$write:fake</span>:
<span id="L40" class="LineNr"> 40 </span> <span class="subxComment"># otherwise, treat 'f' as a stream to append to</span>
<span id="L41" class="LineNr"> 41 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L42" class="LineNr"> 42 </span> 50/push-eax
<span id="L43" class="LineNr"> 43 </span> 51/push-ecx
<span id="L44" class="LineNr"> 44 </span> 52/push-edx
<span id="L45" class="LineNr"> 45 </span> 53/push-ebx
<span id="L46" class="LineNr"> 46 </span> <span class="subxComment"># ecx = f</span>
<span id="L47" class="LineNr"> 47 </span> 8b/copy 1/mod/*+disp8 5/rm32/ebp <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ecx 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ebp+8) to ecx</span>
<span id="L48" class="LineNr"> 48 </span> <span class="subxComment"># edx = f->write</span>
<span id="L49" class="LineNr"> 49 </span> 8b/copy 0/mod/indirect 1/rm32/ecx <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 *ecx to edx</span>
<span id="L50" class="LineNr"> 50 </span> <span class="subxComment"># ebx = f->length</span>
<span id="L51" class="LineNr"> 51 </span> 8b/copy 1/mod/*+disp8 1/rm32/ecx <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 *(ecx+8) to ebx</span>
<span id="L52" class="LineNr"> 52 </span> <span class="subxComment"># eax = _append-3(&f->data[f->write], &f->data[f->length], s)</span>
<span id="L53" class="LineNr"> 53 </span> <span class="subxS2Comment"># . . push s</span>
<span id="L54" class="LineNr"> 54 </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="L55" class="LineNr"> 55 </span> <span class="subxS2Comment"># . . push &f->data[f->length]</span>
<span id="L56" class="LineNr"> 56 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 3/index/ebx <span class="Normal"> . </span> 3/r32/ebx 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy ecx+ebx+12 to ebx</span>
<span id="L57" class="LineNr"> 57 </span> 53/push-ebx
<span id="L58" class="LineNr"> 58 </span> <span class="subxS2Comment"># . . push &f->data[f->write]</span>
<span id="L59" class="LineNr"> 59 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 2/index/edx <span class="Normal"> . </span> 3/r32/ebx 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy ecx+edx+12 to ebx</span>
<span id="L60" class="LineNr"> 60 </span> 53/push-ebx
<span id="L61" class="LineNr"> 61 </span> <span class="subxS2Comment"># . . call</span>
<span id="L62" class="LineNr"> 62 </span> e8/call <a href='056trace.subx.html#L865'>_append-3</a>/disp32
<span id="L63" class="LineNr"> 63 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L64" class="LineNr"> 64 </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="L65" class="LineNr"> 65 </span> <span class="subxComment"># f->write += eax</span>
<span id="L66" class="LineNr"> 66 </span> 01/add 0/mod/indirect 1/rm32/ecx <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 *ecx</span>
<span id="L67" class="LineNr"> 67 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L68" class="LineNr"> 68 </span> 5b/pop-to-ebx
<span id="L69" class="LineNr"> 69 </span> 5a/pop-to-edx
<span id="L70" class="LineNr"> 70 </span> 59/pop-to-ecx
<span id="L71" class="LineNr"> 71 </span> 58/pop-to-eax
<span id="L72" class="LineNr"> 72 </span><span class="Constant">$write:end</span>:
<span id="L73" class="LineNr"> 73 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L74" class="LineNr"> 74 </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="L75" class="LineNr"> 75 </span> 5d/pop-to-ebp
<span id="L76" class="LineNr"> 76 </span> c3/return
<span id="L77" class="LineNr"> 77 </span>
<span id="L78" class="LineNr"> 78 </span><span class="subxTest">test-write-single</span>:
<span id="L79" class="LineNr"> 79 </span> <span class="subxComment"># clear-stream(_test-stream)</span>
<span id="L80" class="LineNr"> 80 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L81" class="LineNr"> 81 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32
<span id="L82" class="LineNr"> 82 </span> <span class="subxS2Comment"># . . call</span>
<span id="L83" class="LineNr"> 83 </span> e8/call <a href='055stream.subx.html#L17'>clear-stream</a>/disp32
<span id="L84" class="LineNr"> 84 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L85" class="LineNr"> 85 </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="L86" class="LineNr"> 86 </span> <span class="subxComment"># write(_test-stream, "Ab")</span>
<span id="L87" class="LineNr"> 87 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L88" class="LineNr"> 88 </span> 68/push <span class="Constant">"Ab"</span>/imm32
<span id="L89" class="LineNr"> 89 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32
<span id="L90" class="LineNr"> 90 </span> <span class="subxS2Comment"># . . call</span>
<span id="L91" class="LineNr"> 91 </span> e8/call <a href='057write.subx.html#L24'>write</a>/disp32
<span id="L92" class="LineNr"> 92 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L93" class="LineNr"> 93 </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="L94" class="LineNr"> 94 </span> <span class="subxComment"># check-ints-equal(*_test-stream->data, 41/A 62/b 00 00, msg)</span>
<span id="L95" class="LineNr"> 95 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L96" class="LineNr"> 96 </span> 68/push <span class="Constant">"F - test-write-single"</span>/imm32
<span id="L97" class="LineNr"> 97 </span> 68/push 0x006241/imm32/Ab
<span id="L98" class="LineNr"> 98 </span> <span class="subxS2Comment"># . . push *_test-stream->data</span>
<span id="L99" class="LineNr"> 99 </span> b8/copy-to-eax <a href='057write.subx.html#L148'>_test-stream</a>/imm32
<span id="L100" class="LineNr">100 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/eax <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 *(eax+12)</span>
<span id="L101" class="LineNr">101 </span> <span class="subxS2Comment"># . . call</span>
<span id="L102" class="LineNr">102 </span> e8/call <a href='051test.subx.html#L24'>check-ints-equal</a>/disp32
<span id="L103" class="LineNr">103 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L104" class="LineNr">104 </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="L105" class="LineNr">105 </span> <span class="subxComment"># end</span>
<span id="L106" class="LineNr">106 </span> c3/return
<span id="L107" class="LineNr">107 </span>
<span id="L108" class="LineNr">108 </span><span class="subxTest">test-write-appends</span>:
<span id="L109" class="LineNr">109 </span> <span class="subxComment"># clear-stream(_test-stream)</span>
<span id="L110" class="LineNr">110 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L111" class="LineNr">111 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32
<span id="L112" class="LineNr">112 </span> <span class="subxS2Comment"># . . call</span>
<span id="L113" class="LineNr">113 </span> e8/call <a href='055stream.subx.html#L17'>clear-stream</a>/disp32
<span id="L114" class="LineNr">114 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L115" class="LineNr">115 </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="L116" class="LineNr">116 </span> <span class="subxComment"># write(_test-stream, "C")</span>
<span id="L117" class="LineNr">117 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L118" class="LineNr">118 </span> 68/push <span class="Constant">"C"</span>/imm32
<span id="L119" class="LineNr">119 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32
<span id="L120" class="LineNr">120 </span> <span class="subxS2Comment"># . . call</span>
<span id="L121" class="LineNr">121 </span> e8/call <a href='057write.subx.html#L24'>write</a>/disp32
<span id="L122" class="LineNr">122 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L123" class="LineNr">123 </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="L124" class="LineNr">124 </span> <span class="subxComment"># write(_test-stream, "D")</span>
<span id="L125" class="LineNr">125 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L126" class="LineNr">126 </span> 68/push <span class="Constant">"D"</span>/imm32
<span id="L127" class="LineNr">127 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32
<span id="L128" class="LineNr">128 </span> <span class="subxS2Comment"># . . call</span>
<span id="L129" class="LineNr">129 </span> e8/call <a href='057write.subx.html#L24'>write</a>/disp32
<span id="L130" class="LineNr">130 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L131" class="LineNr">131 </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="L132" class="LineNr">132 </span> <span class="subxComment"># check-ints-equal(*_test-stream->data, 43/C 44/D 00 00, msg)</span>
<span id="L133" class="LineNr">133 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L134" class="LineNr">134 </span> 68/push <span class="Constant">"F - test-write-appends"</span>/imm32
<span id="L135" class="LineNr">135 </span> 68/push 0x00004443/imm32/C-D
<span id="L136" class="LineNr">136 </span> <span class="subxS2Comment"># . . push *_test-stream->data</span>
<span id="L137" class="LineNr">137 </span> b8/copy-to-eax <a href='057write.subx.html#L148'>_test-stream</a>/imm32
<span id="L138" class="LineNr">138 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/eax <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 *(eax+12)</span>
<span id="L139" class="LineNr">139 </span> <span class="subxS2Comment"># . . call</span>
<span id="L140" class="LineNr">140 </span> e8/call <a href='051test.subx.html#L24'>check-ints-equal</a>/disp32
<span id="L141" class="LineNr">141 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L142" class="LineNr">142 </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="L143" class="LineNr">143 </span> <span class="subxComment"># end</span>
<span id="L144" class="LineNr">144 </span> c3/return
<span id="L145" class="LineNr">145 </span>
<span id="L146" class="LineNr">146 </span>== data
<span id="L147" class="LineNr">147 </span>
<span id="L148" class="LineNr">148 </span><span class="subxMinorFunction">_test-stream</span>: <span class="subxComment"># (stream byte)</span>
<span id="L149" class="LineNr">149 </span> <span class="subxComment"># current write index</span>
<span id="L150" class="LineNr">150 </span> 0/imm32
<span id="L151" class="LineNr">151 </span> <span class="subxComment"># current read index</span>
<span id="L152" class="LineNr">152 </span> 0/imm32
<span id="L153" class="LineNr">153 </span> <span class="subxComment"># length</span>
<span id="L154" class="LineNr">154 </span> 0x10/imm32
<span id="L155" class="LineNr">155 </span> <span class="subxComment"># data (2 lines x 8 bytes/line)</span>
<span id="L156" class="LineNr">156 </span> 00 00 00 00 00 00 00 00
<span id="L157" class="LineNr">157 </span> 00 00 00 00 00 00 00 00
<span id="L158" class="LineNr">158 </span>
<span id="L159" class="LineNr">159 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|