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path: root/doc/print_keys.py
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#!/usr/bin/python
"""
You can use this tool to find out values of keypresses
"""

from curses import *

sep = '; '

@wrapper
def main(w):
	while True:
		w.addstr(str(w.getch()) + sep)
.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
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<a href='https://github.com/akkartik/mu/blob/master/apps/ex6.subx'>https://github.com/akkartik/mu/blob/master/apps/ex6.subx</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Print out a (global variable) string 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/ex6.subx -o apps/ex6</span>
<span id="L5" class="LineNr"> 5 </span><span class="subxComment">#   $ ./bootstrap run apps/ex6</span>
<span id="L6" class="LineNr"> 6 </span><span class="subxComment">#   Hello, world!</span>
<span id="L7" class="LineNr"> 7 </span>
<span id="L8" class="LineNr"> 8 </span>== code
<span id="L9" class="LineNr"> 9 </span>
<span id="L10" class="LineNr">10 </span><span class="subxS1Comment"># . op          subop               mod             rm32          base        index         scale       r32</span>
<span id="L11" class="LineNr">11 </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="L12" class="LineNr">12 </span>
<span id="L13" class="LineNr">13 </span><span class="SpecialChar">Entry</span>:
<span id="L14" class="LineNr">14 </span>    <span class="subxComment"># write(stdout, X, Size)</span>
<span id="L15" class="LineNr">15 </span>    <span class="subxS1Comment"># . fd = 1 (stdout)</span>
<span id="L16" class="LineNr">16 </span>    bb/copy-to-ebx  1/imm32
<span id="L17" class="LineNr">17 </span>    <span class="subxS1Comment"># . initialize X (location to write result to)</span>
<span id="L18" class="LineNr">18 </span>    b9/copy-to-ecx  <span class="SpecialChar"><a href='ex6.subx.html#L31'>X</a></span>/imm32
<span id="L19" class="LineNr">19 </span>    <span class="subxS1Comment"># . initialize Size</span>
<span id="L20" class="LineNr">20 </span>    8b/copy                         0/mod/indirect  5/rm32/.disp32           <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx   <span class="SpecialChar"><a href='ex6.subx.html#L29'>Size</a></span>/disp32    <span class="Normal"> . </span>                <span class="subxComment"># copy *Size to edx</span>
<span id="L21" class="LineNr">21 </span>    <span class="subxS1Comment"># . syscall</span>
<span id="L22" class="LineNr">22 </span>    e8/call  syscall_write/disp32
<span id="L23" class="LineNr">23 </span>
<span id="L24" class="LineNr">24 </span>    <span class="subxComment"># exit(ebx)</span>
<span id="L25" class="LineNr">25 </span>    e8/call  syscall_exit/disp32
<span id="L26" class="LineNr">26 </span>
<span id="L27" class="LineNr">27 </span>== data
<span id="L28" class="LineNr">28 </span>
<span id="L29" class="LineNr">29 </span><span class="SpecialChar">Size</span>:  <span class="subxComment"># size of string</span>
<span id="L30" class="LineNr">30 </span>    0x0e/imm32  <span class="subxComment"># 14</span>
<span id="L31" class="LineNr">31 </span><span class="SpecialChar">X</span>:  <span class="subxComment"># string to print</span>
<span id="L32" class="LineNr">32 </span>    48 65 6c 6c 6f 2c 20 77 6f 72 6c 64 21 0a       00
<span id="L33" class="LineNr">33 </span><span class="subxComment">#   H  e  l  l  o  ,  ␣  w  o  r  l  d  !  newline  null</span>
<span id="L34" class="LineNr">34 </span>
<span id="L35" class="LineNr">35 </span><span class="subxS2Comment"># . . vim&#0058;nowrap:textwidth=0</span>
</pre>
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