47 lines
2.4 KiB
HTML
Executable File
47 lines
2.4 KiB
HTML
Executable File
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
<meta name="generator" content="TempleOS V5.03">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|
<link rel="stylesheet" href="/style/templeos.css">
|
|
<script src="/script/templeos.js"></script>
|
|
<style type="text/css">
|
|
.cF0{color:#000000;background-color:#ffffff;}
|
|
.cF1{color:#0000aa;background-color:#ffffff;}
|
|
.cF2{color:#00aa00;background-color:#ffffff;}
|
|
.cF3{color:#00aaaa;background-color:#ffffff;}
|
|
.cF4{color:#aa0000;background-color:#ffffff;}
|
|
.cF5{color:#aa00aa;background-color:#ffffff;}
|
|
.cF6{color:#aa5500;background-color:#ffffff;}
|
|
.cF7{color:#aaaaaa;background-color:#ffffff;}
|
|
.cF8{color:#555555;background-color:#ffffff;}
|
|
.cF9{color:#5555ff;background-color:#ffffff;}
|
|
.cFA{color:#55ff55;background-color:#ffffff;}
|
|
.cFB{color:#55ffff;background-color:#ffffff;}
|
|
.cFC{color:#ff5555;background-color:#ffffff;}
|
|
.cFD{color:#ff55ff;background-color:#ffffff;}
|
|
.cFE{color:#ffff55;background-color:#ffffff;}
|
|
.cFF{color:#ffffff;background-color:#ffffff;}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<pre style="font-family: courier, monospace; font-size: 10pt;">
|
|
<a name="l1"></a><span class=cF0>
|
|
<a name="l2"></a></span><span class=cF5>These take a pointer to a bit field.</span><span class=cF0>
|
|
<a name="l3"></a></span><span class=cF2>Bt</span><span class=cF0>: Bit Test
|
|
<a name="l4"></a></span><span class=cF2>Bts</span><span class=cF0>: Bit Test and Set to one
|
|
<a name="l5"></a></span><span class=cF2>Btr</span><span class=cF0>: Bit Test and Rst to zero
|
|
<a name="l6"></a></span><span class=cF2>Btc</span><span class=cF0>: Bit Test and Compliment (toggle)
|
|
<a name="l7"></a></span><span class=cF2>BEqu</span><span class=cF0>: Set bit to value.
|
|
<a name="l8"></a>
|
|
<a name="l9"></a>Bit operations are "atomic", no interrupt between the reading and writing the
|
|
<a name="l10"></a>bit, important when multitasking. For multicore use "locked" forms.
|
|
<a name="l11"></a>
|
|
<a name="l12"></a></span><span class=cF5>These don't take a pointer, but the actual field.</span><span class=cF0>
|
|
<a name="l13"></a></span><span class=cF2>Bsf</span><span class=cF0>: Bit Scan Fwd (Pos of first low one bit or -1)
|
|
<a name="l14"></a></span><span class=cF2>Bsr</span><span class=cF0>: Bit Scan Rev (Pos of first high one bit or -1)
|
|
<a name="l15"></a></span><span class=cF2>BCnt</span><span class=cF0>: Bit Cnt (Cnt of set bits)
|
|
</span></pre></body>
|
|
</html>
|