about summary refs log blame commit diff stats
path: root/html/apps/ex4.subx.html
blob: 297576bb07029c3fa5801dad68797fed9a0988d8 (plain) (tree) 
bb2b6ba7 ^




c9bda4d1 ^

generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-12-19 07:23:53 +0000
the previous revision' href='/akkartik/mu/blame/html/subx/examples/ex4.subx.html?h=main&id=7e00968c99f97e13be8f5269feaf7fd1d33ecd33'>^ 
52daf072 ^




a0d3cac4 ^

52daf072 ^

695f9bf8 ^

a0d3cac4 ^

695f9bf8 ^

33352536 ^

695f9bf8 ^

33352536 ^

695f9bf8 ^

33352536 ^

695f9bf8 ^

a0d3cac4 ^
















bb2b6ba7 ^




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




                                                                                          
                                 

                                                
                                   
                                                                                                      
                                                 

                       

                                                                                           
                    
                                     
                                
                                  
           
                                  
                                















                                                                                 
                                                  















                                                                              
                                                                                                                               
                         
                                                                                                                                               
                                                                         
                                                                                 

                                                                                                                                        
                                       
                                              
                                       



                                                                                                                    
                                               
                                        
                                                                               
                                                                                            
                                                                                             
                                                               
                                                                                                                     
                                                                                                                                
                                                                                                 
                                                               
                                                                                      















                                                                                                                                



                                     
<!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 - apps/ex4.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; }
.SpecialChar { color: #d70000; }
-->
</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/apps/ex4.subx'>https://github.com/akkartik/mu/blob/master/apps/ex4.subx</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Read a character from stdin, save it to a global, write it to stdout.</span>
<span id="L2" class="LineNr"> 2 </span><span class="subxComment">#</span>
<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># To run:</span>
<span id="L4" class="LineNr"> 4 </span><span class="subxComment">#   $ ./bootstrap translate init.linux apps/ex4.subx -o apps/ex4</span>
<span id="L5" class="LineNr"> 5 </span><span class="subxComment">#   $ ./bootstrap run apps/ex4</span>
<span id="L6" class="LineNr"> 6 </span>
<span id="L7" class="LineNr"> 7 </span>== data
<span id="L8" class="LineNr"> 8 </span>
<span id="L9" class="LineNr"> 9 </span><span class="subxComment"># the global variable we save to</span>
<span id="L10" class="LineNr">10 </span><span class="SpecialChar">X</span>:
<span id="L11" class="LineNr">11 </span>    0/imm32  <span class="subxComment"># space for read() to write to</span>
<span id="L12" class="LineNr">12 </span>
<span id="L13" class="LineNr">13 </span>== code
<span id="L14" class="LineNr">14 </span>
<span id="L15" class="LineNr">15 </span><span class="SpecialChar">Entry</span>:
<span id="L16" class="LineNr">16 </span><span class="subxComment"># read(stdin, X, 1)</span>
<span id="L17" class="LineNr">17 </span><span class="subxS1Comment"># . fd = 0 (stdin)</span>
<span id="L18" class="LineNr">18 </span>bb/copy-to-ebx  0/imm32
<span id="L19" class="LineNr">19 </span><span class="subxS1Comment"># . data = X (location to write result to)</span>
<span id="L20" class="LineNr">20 </span>b9/copy-to-ecx  <span class="SpecialChar"><a href='ex4.subx.html#L10'>X</a></span>/imm32
<span id="L21" class="LineNr">21 </span><span class="subxS1Comment"># . size = 1 character</span>
<span id="L22" class="LineNr">22 </span>ba/copy-to-edx  1/imm32
<span id="L23" class="LineNr">23 </span><span class="subxS1Comment"># . syscall</span>
<span id="L24" class="LineNr">24 </span>e8/call  syscall_read/disp32
<span id="L25" class="LineNr">25 </span>
<span id="L26" class="LineNr">26 </span><span class="subxComment"># write(stdout, X, 1)</span>
<span id="L27" class="LineNr">27 </span><span class="subxS1Comment"># . fd = 1 (stdout)</span>
<span id="L28" class="LineNr">28 </span>bb/copy-to-ebx  1/imm32
<span id="L29" class="LineNr">29 </span><span class="subxS1Comment"># . initialize X (location to read from)</span>
<span id="L30" class="LineNr">30 </span>b9/copy-to-ecx  <span class="SpecialChar"><a href='ex4.subx.html#L10'>X</a></span>/imm32
<span id="L31" class="LineNr">31 </span><span class="subxS1Comment"># . size = 1 character</span>
<span id="L32" class="LineNr">32 </span>ba/copy-to-edx  1/imm32
<span id="L33" class="LineNr">33 </span><span class="subxS1Comment"># . syscall</span>
<span id="L34" class="LineNr">34 </span>e8/call  syscall_write/disp32
<span id="L35" class="LineNr">35 </span>
<span id="L36" class="LineNr">36 </span><span class="subxComment"># exit(ebx)</span>
<span id="L37" class="LineNr">37 </span>e8/call  syscall_exit/disp32
<span id="L38" class="LineNr">38 </span>
<span id="L39" class="LineNr">39 </span><span class="subxS2Comment"># . . vim&#0058;nowrap:textwidth=0</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-12-19 07:23:56 +0000