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
224
225
226
227
228
229
230
231
232
233
234
235
|
<!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 - 408print-float.mu</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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
<meta name="colorscheme" content="minimal-light">
<style type="text/css">
<!--
pre { white-space: pre-wrap; 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; }
.CommentedCode { color: #8a8a8a; }
.muComment { color: #005faf; }
.LineNr { }
.SpecialChar { color: #d70000; }
.Delimiter { color: #c000c0; }
.muFunction { color: #af5f00; text-decoration: underline; }
.muTest { color: #5f8700; }
.Constant { color: #008787; }
.PreProc { color: #c000c0; }
-->
</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/408print-float.mu'>https://github.com/akkartik/mu/blob/master/408print-float.mu</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="muComment"># quick-n-dirty way to print out floats in hex</span>
<span id="L2" class="LineNr"> 2 </span>
<span id="L3" class="LineNr"> 3 </span><span class="muComment"># examples:</span>
<span id="L4" class="LineNr"> 4 </span><span class="muComment"># 0.5 = 0x3f000000 = 0011| 1111 | 0000 | 0000 | 0000 | 0000 | 0000 | 0000</span>
<span id="L5" class="LineNr"> 5 </span><span class="muComment"># = 0 | 01111110 | 00000000000000000000000</span>
<span id="L6" class="LineNr"> 6 </span><span class="muComment"># + exponent mantissa</span>
<span id="L7" class="LineNr"> 7 </span><span class="muComment"># = 0 | 00000000000000000000000 | 01111110</span>
<span id="L8" class="LineNr"> 8 </span><span class="muComment"># mantissa exponent</span>
<span id="L9" class="LineNr"> 9 </span><span class="muComment"># = 0 | 000000000000000000000000 | 01111110</span>
<span id="L10" class="LineNr"> 10 </span><span class="muComment"># zero-pad mantissa exponent</span>
<span id="L11" class="LineNr"> 11 </span><span class="muComment"># = +1.000000 P -01</span>
<span id="L12" class="LineNr"> 12 </span><span class="PreProc">fn</span> <span class="muTest"><a href='408print-float.mu.html#L12'>test-print-float-normal</a></span> <span class="Delimiter">{</span>
<span id="L13" class="LineNr"> 13 </span> <span class="PreProc">var</span> screen-on-stack: <a href='405screen.mu.html#L9'>screen</a>
<span id="L14" class="LineNr"> 14 </span> <span class="PreProc">var</span> <a href='405screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> address screen-on-stack
<span id="L15" class="LineNr"> 15 </span> <a href='405screen.mu.html#L30'>initialize-screen</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">0x20</span> <span class="muComment"># 32 columns should be more than enough</span>
<span id="L16" class="LineNr"> 16 </span> <span class="muComment"># print 0.5</span>
<span id="L17" class="LineNr"> 17 </span> <span class="PreProc">var</span> one/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">1</span>
<span id="L18" class="LineNr"> 18 </span> <span class="PreProc">var</span> half/<span class="Constant">xmm0</span>: float <span class="SpecialChar"><-</span> convert one
<span id="L19" class="LineNr"> 19 </span> <span class="PreProc">var</span> two/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">2</span>
<span id="L20" class="LineNr"> 20 </span> <span class="PreProc">var</span> two-f/<span class="Constant">xmm1</span>: float <span class="SpecialChar"><-</span> convert two
<span id="L21" class="LineNr"> 21 </span> half <span class="SpecialChar"><-</span> divide two-f
<span id="L22" class="LineNr"> 22 </span> <a href='408print-float.mu.html#L92'>print-float</a> <a href='405screen.mu.html#L9'>screen</a>, half
<span id="L23" class="LineNr"> 23 </span> <span class="muComment">#</span>
<span id="L24" class="LineNr"> 24 </span> <a href='405screen.mu.html#L613'>check-screen-row</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>, <span class="Constant">"1.000000P-01 "</span>, <span class="Constant">"F - test-print-float-normal"</span>
<span id="L25" class="LineNr"> 25 </span><span class="Delimiter">}</span>
<span id="L26" class="LineNr"> 26 </span>
<span id="L27" class="LineNr"> 27 </span><span class="PreProc">fn</span> <span class="muTest"><a href='408print-float.mu.html#L27'>test-print-float-zero</a></span> <span class="Delimiter">{</span>
<span id="L28" class="LineNr"> 28 </span> <span class="PreProc">var</span> screen-on-stack: <a href='405screen.mu.html#L9'>screen</a>
<span id="L29" class="LineNr"> 29 </span> <span class="PreProc">var</span> <a href='405screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> address screen-on-stack
<span id="L30" class="LineNr"> 30 </span> <a href='405screen.mu.html#L30'>initialize-screen</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">0x20</span> <span class="muComment"># 32 columns should be more than enough</span>
<span id="L31" class="LineNr"> 31 </span> <span class="muComment"># print 0</span>
<span id="L32" class="LineNr"> 32 </span> <span class="PreProc">var</span> zero: float
<span id="L33" class="LineNr"> 33 </span> <a href='408print-float.mu.html#L92'>print-float</a> <a href='405screen.mu.html#L9'>screen</a>, zero
<span id="L34" class="LineNr"> 34 </span> <span class="muComment">#</span>
<span id="L35" class="LineNr"> 35 </span> <a href='405screen.mu.html#L613'>check-screen-row</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>, <span class="Constant">"0 "</span>, <span class="Constant">"F - test-print-float-zero"</span>
<span id="L36" class="LineNr"> 36 </span><span class="Delimiter">}</span>
<span id="L37" class="LineNr"> 37 </span>
<span id="L38" class="LineNr"> 38 </span><span class="PreProc">fn</span> <span class="muTest"><a href='408print-float.mu.html#L38'>test-print-float-negative-zero</a></span> <span class="Delimiter">{</span>
<span id="L39" class="LineNr"> 39 </span> <span class="PreProc">var</span> screen-on-stack: <a href='405screen.mu.html#L9'>screen</a>
<span id="L40" class="LineNr"> 40 </span> <span class="PreProc">var</span> <a href='405screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> address screen-on-stack
<span id="L41" class="LineNr"> 41 </span> <a href='405screen.mu.html#L30'>initialize-screen</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">0x20</span> <span class="muComment"># 32 columns should be more than enough</span>
<span id="L42" class="LineNr"> 42 </span> <span class="muComment"># print 0</span>
<span id="L43" class="LineNr"> 43 </span> <span class="PreProc">var</span> n: int
<span id="L44" class="LineNr"> 44 </span> copy-to n, <span class="Constant">0x80000000</span>
<span id="L45" class="LineNr"> 45 </span> <span class="PreProc">var</span> negative-zero/<span class="Constant">xmm0</span>: float <span class="SpecialChar"><-</span> reinterpret n
<span id="L46" class="LineNr"> 46 </span> <a href='408print-float.mu.html#L92'>print-float</a> <a href='405screen.mu.html#L9'>screen</a>, negative-zero
<span id="L47" class="LineNr"> 47 </span> <span class="muComment">#</span>
<span id="L48" class="LineNr"> 48 </span> <a href='405screen.mu.html#L613'>check-screen-row</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>, <span class="Constant">"-0 "</span>, <span class="Constant">"F - test-print-float-negative-zero"</span>
<span id="L49" class="LineNr"> 49 </span><span class="Delimiter">}</span>
<span id="L50" class="LineNr"> 50 </span>
<span id="L51" class="LineNr"> 51 </span><span class="PreProc">fn</span> <span class="muTest"><a href='408print-float.mu.html#L51'>test-print-float-infinity</a></span> <span class="Delimiter">{</span>
<span id="L52" class="LineNr"> 52 </span> <span class="PreProc">var</span> screen-on-stack: <a href='405screen.mu.html#L9'>screen</a>
<span id="L53" class="LineNr"> 53 </span> <span class="PreProc">var</span> <a href='405screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> address screen-on-stack
<span id="L54" class="LineNr"> 54 </span> <a href='405screen.mu.html#L30'>initialize-screen</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">0x20</span> <span class="muComment"># 32 columns should be more than enough</span>
<span id="L55" class="LineNr"> 55 </span> <span class="muComment"># print</span>
<span id="L56" class="LineNr"> 56 </span> <span class="PreProc">var</span> n: int
<span id="L57" class="LineNr"> 57 </span> <span class="muComment"># 0|11111111|00000000000000000000000</span>
<span id="L58" class="LineNr"> 58 </span> <span class="muComment"># 0111|1111|1000|0000|0000|0000|0000|0000</span>
<span id="L59" class="LineNr"> 59 </span> copy-to n, <span class="Constant">0x7f800000</span>
<span id="L60" class="LineNr"> 60 </span> <span class="PreProc">var</span> infinity/<span class="Constant">xmm0</span>: float <span class="SpecialChar"><-</span> reinterpret n
<span id="L61" class="LineNr"> 61 </span> <a href='408print-float.mu.html#L92'>print-float</a> <a href='405screen.mu.html#L9'>screen</a>, infinity
<span id="L62" class="LineNr"> 62 </span> <span class="muComment">#</span>
<span id="L63" class="LineNr"> 63 </span> <a href='405screen.mu.html#L613'>check-screen-row</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>, <span class="Constant">"Inf "</span>, <span class="Constant">"F - test-print-float-infinity"</span>
<span id="L64" class="LineNr"> 64 </span><span class="Delimiter">}</span>
<span id="L65" class="LineNr"> 65 </span>
<span id="L66" class="LineNr"> 66 </span><span class="PreProc">fn</span> <span class="muTest"><a href='408print-float.mu.html#L66'>test-print-float-negative-infinity</a></span> <span class="Delimiter">{</span>
<span id="L67" class="LineNr"> 67 </span> <span class="PreProc">var</span> screen-on-stack: <a href='405screen.mu.html#L9'>screen</a>
<span id="L68" class="LineNr"> 68 </span> <span class="PreProc">var</span> <a href='405screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> address screen-on-stack
<span id="L69" class="LineNr"> 69 </span> <a href='405screen.mu.html#L30'>initialize-screen</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">0x20</span> <span class="muComment"># 32 columns should be more than enough</span>
<span id="L70" class="LineNr"> 70 </span> <span class="muComment"># print</span>
<span id="L71" class="LineNr"> 71 </span> <span class="PreProc">var</span> n: int
<span id="L72" class="LineNr"> 72 </span> copy-to n, <span class="Constant">0xff800000</span>
<span id="L73" class="LineNr"> 73 </span> <span class="PreProc">var</span> negative-infinity/<span class="Constant">xmm0</span>: float <span class="SpecialChar"><-</span> reinterpret n
<span id="L74" class="LineNr"> 74 </span> <a href='408print-float.mu.html#L92'>print-float</a> <a href='405screen.mu.html#L9'>screen</a>, negative-infinity
<span id="L75" class="LineNr"> 75 </span> <span class="muComment">#</span>
<span id="L76" class="LineNr"> 76 </span> <a href='405screen.mu.html#L613'>check-screen-row</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>, <span class="Constant">"-Inf "</span>, <span class="Constant">"F - test-print-float-negative-infinity"</span>
<span id="L77" class="LineNr"> 77 </span><span class="Delimiter">}</span>
<span id="L78" class="LineNr"> 78 </span>
<span id="L79" class="LineNr"> 79 </span><span class="PreProc">fn</span> <span class="muTest"><a href='408print-float.mu.html#L79'>test-print-float-not-a-number</a></span> <span class="Delimiter">{</span>
<span id="L80" class="LineNr"> 80 </span> <span class="PreProc">var</span> screen-on-stack: <a href='405screen.mu.html#L9'>screen</a>
<span id="L81" class="LineNr"> 81 </span> <span class="PreProc">var</span> <a href='405screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> address screen-on-stack
<span id="L82" class="LineNr"> 82 </span> <a href='405screen.mu.html#L30'>initialize-screen</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">0x20</span> <span class="muComment"># 32 columns should be more than enough</span>
<span id="L83" class="LineNr"> 83 </span> <span class="muComment"># print</span>
<span id="L84" class="LineNr"> 84 </span> <span class="PreProc">var</span> n: int
<span id="L85" class="LineNr"> 85 </span> copy-to n, <span class="Constant">0xffffffff</span> <span class="muComment"># exponent must be all 1's, and mantissa must be non-zero</span>
<span id="L86" class="LineNr"> 86 </span> <span class="PreProc">var</span> negative-infinity/<span class="Constant">xmm0</span>: float <span class="SpecialChar"><-</span> reinterpret n
<span id="L87" class="LineNr"> 87 </span> <a href='408print-float.mu.html#L92'>print-float</a> <a href='405screen.mu.html#L9'>screen</a>, negative-infinity
<span id="L88" class="LineNr"> 88 </span> <span class="muComment">#</span>
<span id="L89" class="LineNr"> 89 </span> <a href='405screen.mu.html#L613'>check-screen-row</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>, <span class="Constant">"Nan "</span>, <span class="Constant">"F - test-print-float-not-a-number"</span>
<span id="L90" class="LineNr"> 90 </span><span class="Delimiter">}</span>
<span id="L91" class="LineNr"> 91 </span>
<span id="L92" class="LineNr"> 92 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='408print-float.mu.html#L92'>print-float</a></span> <a href='405screen.mu.html#L9'>screen</a>: (addr <a href='405screen.mu.html#L9'>screen</a>), n: float <span class="Delimiter">{</span>
<span id="L93" class="LineNr"> 93 </span>$print-float:body: <span class="Delimiter">{</span>
<span id="L94" class="LineNr"> 94 </span> <span class="muComment"># - special names</span>
<span id="L95" class="LineNr"> 95 </span> <span class="PreProc">var</span> bits/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> reinterpret n
<span id="L96" class="LineNr"> 96 </span> compare bits, <span class="Constant">0</span>
<span id="L97" class="LineNr"> 97 </span> <span class="Delimiter">{</span>
<span id="L98" class="LineNr"> 98 </span> <span class="PreProc">break-if-!=</span>
<span id="L99" class="LineNr"> 99 </span> <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">"0"</span>
<span id="L100" class="LineNr">100 </span> <span class="PreProc">break</span> $print-float:body
<span id="L101" class="LineNr">101 </span> <span class="Delimiter">}</span>
<span id="L102" class="LineNr">102 </span> compare bits, <span class="Constant">0x80000000</span>
<span id="L103" class="LineNr">103 </span> <span class="Delimiter">{</span>
<span id="L104" class="LineNr">104 </span> <span class="PreProc">break-if-!=</span>
<span id="L105" class="LineNr">105 </span> <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">"-0"</span>
<span id="L106" class="LineNr">106 </span> <span class="PreProc">break</span> $print-float:body
<span id="L107" class="LineNr">107 </span> <span class="Delimiter">}</span>
<span id="L108" class="LineNr">108 </span> compare bits, <span class="Constant">0x7f800000</span>
<span id="L109" class="LineNr">109 </span> <span class="Delimiter">{</span>
<span id="L110" class="LineNr">110 </span> <span class="PreProc">break-if-!=</span>
<span id="L111" class="LineNr">111 </span> <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">"Inf"</span>
<span id="L112" class="LineNr">112 </span> <span class="PreProc">break</span> $print-float:body
<span id="L113" class="LineNr">113 </span> <span class="Delimiter">}</span>
<span id="L114" class="LineNr">114 </span> compare bits, <span class="Constant">0xff800000</span>
<span id="L115" class="LineNr">115 </span> <span class="Delimiter">{</span>
<span id="L116" class="LineNr">116 </span> <span class="PreProc">break-if-!=</span>
<span id="L117" class="LineNr">117 </span> <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">"-Inf"</span>
<span id="L118" class="LineNr">118 </span> <span class="PreProc">break</span> $print-float:body
<span id="L119" class="LineNr">119 </span> <span class="Delimiter">}</span>
<span id="L120" class="LineNr">120 </span> <span class="PreProc">var</span> exponent/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy bits
<span id="L121" class="LineNr">121 </span> exponent <span class="SpecialChar"><-</span> shift-right <span class="Constant">0x17</span> <span class="muComment"># 23 bits of mantissa</span>
<span id="L122" class="LineNr">122 </span> exponent <span class="SpecialChar"><-</span> and <span class="Constant">0xff</span>
<span id="L123" class="LineNr">123 </span> compare exponent, <span class="Constant">0xff</span>
<span id="L124" class="LineNr">124 </span> <span class="Delimiter">{</span>
<span id="L125" class="LineNr">125 </span> <span class="PreProc">break-if-!=</span>
<span id="L126" class="LineNr">126 </span> <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">"Nan"</span>
<span id="L127" class="LineNr">127 </span> <span class="PreProc">break</span> $print-float:body
<span id="L128" class="LineNr">128 </span> <span class="Delimiter">}</span>
<span id="L129" class="LineNr">129 </span> <span class="muComment"># - regular numbers</span>
<span id="L130" class="LineNr">130 </span> <span class="PreProc">var</span> sign/<span class="Constant">edx</span>: int <span class="SpecialChar"><-</span> copy bits
<span id="L131" class="LineNr">131 </span> sign <span class="SpecialChar"><-</span> shift-right <span class="Constant">0x1f</span>
<span id="L132" class="LineNr">132 </span> <span class="Delimiter">{</span>
<span id="L133" class="LineNr">133 </span> compare sign, <span class="Constant">1</span>
<span id="L134" class="LineNr">134 </span> <span class="PreProc">break-if-!=</span>
<span id="L135" class="LineNr">135 </span> <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">"-"</span>
<span id="L136" class="LineNr">136 </span> <span class="Delimiter">}</span>
<span id="L137" class="LineNr">137 </span> $print-float:leading-digit: <span class="Delimiter">{</span>
<span id="L138" class="LineNr">138 </span> <span class="muComment"># check for subnormal numbers</span>
<span id="L139" class="LineNr">139 </span> compare exponent, <span class="Constant">0</span>
<span id="L140" class="LineNr">140 </span> <span class="Delimiter">{</span>
<span id="L141" class="LineNr">141 </span> <span class="PreProc">break-if-!=</span>
<span id="L142" class="LineNr">142 </span> <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">"0."</span>
<span id="L143" class="LineNr">143 </span> exponent <span class="SpecialChar"><-</span> increment
<span id="L144" class="LineNr">144 </span> <span class="PreProc">break</span> $print-float:leading-digit
<span id="L145" class="LineNr">145 </span> <span class="Delimiter">}</span>
<span id="L146" class="LineNr">146 </span> <span class="muComment"># normal numbers</span>
<span id="L147" class="LineNr">147 </span> <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">"1."</span>
<span id="L148" class="LineNr">148 </span> <span class="Delimiter">}</span>
<span id="L149" class="LineNr">149 </span> <span class="PreProc">var</span> mantissa/<span class="Constant">ebx</span>: int <span class="SpecialChar"><-</span> copy bits
<span id="L150" class="LineNr">150 </span> mantissa <span class="SpecialChar"><-</span> and <span class="Constant">0x7fffff</span>
<span id="L151" class="LineNr">151 </span> <a href='405screen.mu.html#L459'>print-int32-hex-bits</a> <a href='405screen.mu.html#L9'>screen</a>, mantissa, <span class="Constant">0x18</span>
<span id="L152" class="LineNr">152 </span> <span class="muComment"># print exponent</span>
<span id="L153" class="LineNr">153 </span> <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">"P"</span>
<span id="L154" class="LineNr">154 </span> exponent <span class="SpecialChar"><-</span> subtract <span class="Constant">0x7f</span>
<span id="L155" class="LineNr">155 </span> compare exponent, <span class="Constant">0</span>
<span id="L156" class="LineNr">156 </span> <span class="Delimiter">{</span>
<span id="L157" class="LineNr">157 </span> <span class="PreProc">break-if->=</span>
<span id="L158" class="LineNr">158 </span> <a href='405screen.mu.html#L169'>print-string</a> <a href='405screen.mu.html#L9'>screen</a>, <span class="Constant">"-"</span>
<span id="L159" class="LineNr">159 </span> <span class="Delimiter">}</span>
<span id="L160" class="LineNr">160 </span> <span class="PreProc">var</span> exp-magnitude/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> <a href='406try-divide.mu.html#L102'>abs</a> exponent
<span id="L161" class="LineNr">161 </span> <a href='405screen.mu.html#L459'>print-int32-hex-bits</a> <a href='405screen.mu.html#L9'>screen</a>, exp-magnitude, <span class="Constant">8</span>
<span id="L162" class="LineNr">162 </span><span class="Delimiter">}</span>
<span id="L163" class="LineNr">163 </span><span class="Delimiter">}</span>
<span id="L164" class="LineNr">164 </span>
<span id="L165" class="LineNr">165 </span><span class="CommentedCode">#? fn main -> _/ebx: int {</span>
<span id="L166" class="LineNr">166 </span><span class="CommentedCode">#? run-tests</span>
<span id="L167" class="LineNr">167 </span><span class="CommentedCode">#? #? test-print-float-negative-zero</span>
<span id="L168" class="LineNr">168 </span><span class="CommentedCode">#? #? print-int32-hex 0, 0</span>
<span id="L169" class="LineNr">169 </span><span class="CommentedCode">#? #? test-print-float-normal</span>
<span id="L170" class="LineNr">170 </span><span class="CommentedCode">#? return 0</span>
<span id="L171" class="LineNr">171 </span><span class="CommentedCode">#? }</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|