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33 lines
1.2 KiB
HTML
33 lines
1.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
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<title>xAsm REPT, ENDR</title>
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<link rel="stylesheet" type="text/css" href="../style.css">
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</head>
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<body>
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<h1>REPT, ENDR</h1>
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<p>Suppose you’re feeling lazy and you want to unroll a time consuming loop. <dfn>REPT</dfn> is here for that purpose. Everything between REPT and ENDR will be repeated a number of times just as if you done a copy/paste operation yourself</p>
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<pre>REPT 4
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add a,c
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ENDR</pre>
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<p>This will assemble <code>add a,c</code> four times.</p>
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<p>You can also use REPT to generate tables on the fly:</p>
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<pre>; --
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; -- Generate a 256 byte sine table with values between 0 and 128
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; --
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ANGLE SET 0.0
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REPT 256
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DB (MUL(64.0,SIN(ANGLE))+64.0)>>16
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ANGLE SET ANGLE+256.0
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ENDR</pre>
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<p>REPT is also very useful in recursive macros and as in macros you can also use the special label operator \@. REPT-blocks can be nested.<p>
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<h1>See also:</h1>
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<ul>
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<li><a href="macro.htm#labelsuffix">\@</a>
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</ul>
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<hr>
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<p>Last updated 21 June 1997 by <a href="mailto:surfsmurf@matilde.demon.co.uk">Carsten Sorensen</a></p>
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</body>
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</html>
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