237 lines
9.7 KiB
HTML
237 lines
9.7 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- This file documents the GNU Assembler "as".
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Copyright (C) 1991-2016 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the
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section entitled "GNU Free Documentation License".
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<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Using as: TIC54X-Builtins</title>
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<meta name="description" content="Using as: TIC54X-Builtins">
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<meta name="keywords" content="Using as: TIC54X-Builtins">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="AS-Index.html#AS-Index" rel="index" title="AS Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="TIC54X_002dDependent.html#TIC54X_002dDependent" rel="up" title="TIC54X-Dependent">
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<link href="TIC54X_002dExt.html#TIC54X_002dExt" rel="next" title="TIC54X-Ext">
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="TIC54X_002dBuiltins"></a>
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<div class="header">
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<p>
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Next: <a href="TIC54X_002dExt.html#TIC54X_002dExt" accesskey="n" rel="next">TIC54X-Ext</a>, Previous: <a href="TIC54X_002dLocals.html#TIC54X_002dLocals" accesskey="p" rel="prev">TIC54X-Locals</a>, Up: <a href="TIC54X_002dDependent.html#TIC54X_002dDependent" accesskey="u" rel="up">TIC54X-Dependent</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Math-Builtins"></a>
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<h4 class="subsection">9.43.7 Math Builtins</h4>
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<a name="index-math-builtins_002c-TIC54X"></a>
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<a name="index-TIC54X-builtin-math-functions"></a>
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<a name="index-builtin-math-functions_002c-TIC54X"></a>
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<p>The following built-in functions may be used to generate a
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floating-point value. All return a floating-point value except
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‘<samp>$cvi</samp>’, ‘<samp>$int</samp>’, and ‘<samp>$sgn</samp>’, which return an integer
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value.
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</p>
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<dl compact="compact">
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<dd><a name="index-_0024acos-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$acos(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the floating point arccosine of <var>expr</var>.
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</p>
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<a name="index-_0024asin-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$asin(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the floating point arcsine of <var>expr</var>.
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</p>
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<a name="index-_0024atan-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$atan(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the floating point arctangent of <var>expr</var>.
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</p>
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<a name="index-_0024atan2-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$atan2(<var>expr1</var>,<var>expr2</var>)</code></code></dt>
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<dd><p>Returns the floating point arctangent of <var>expr1</var> / <var>expr2</var>.
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</p>
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<a name="index-_0024ceil-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$ceil(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the smallest integer not less than <var>expr</var> as floating point.
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</p>
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<a name="index-_0024cosh-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$cosh(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the floating point hyperbolic cosine of <var>expr</var>.
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</p>
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<a name="index-_0024cos-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$cos(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the floating point cosine of <var>expr</var>.
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</p>
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<a name="index-_0024cvf-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$cvf(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the integer value <var>expr</var> converted to floating-point.
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</p>
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<a name="index-_0024cvi-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$cvi(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the floating point value <var>expr</var> converted to integer.
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</p>
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<a name="index-_0024exp-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$exp(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the floating point value e ^ <var>expr</var>.
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</p>
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<a name="index-_0024fabs-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$fabs(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the floating point absolute value of <var>expr</var>.
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</p>
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<a name="index-_0024floor-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$floor(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the largest integer that is not greater than <var>expr</var> as
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floating point.
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</p>
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<a name="index-_0024fmod-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$fmod(<var>expr1</var>,<var>expr2</var>)</code></code></dt>
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<dd><p>Returns the floating point remainder of <var>expr1</var> / <var>expr2</var>.
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</p>
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<a name="index-_0024int-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$int(<var>expr</var>)</code></code></dt>
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<dd><p>Returns 1 if <var>expr</var> evaluates to an integer, zero otherwise.
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</p>
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<a name="index-_0024ldexp-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$ldexp(<var>expr1</var>,<var>expr2</var>)</code></code></dt>
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<dd><p>Returns the floating point value <var>expr1</var> * 2 ^ <var>expr2</var>.
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</p>
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<a name="index-_0024log10-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$log10(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the base 10 logarithm of <var>expr</var>.
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</p>
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<a name="index-_0024log-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$log(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the natural logarithm of <var>expr</var>.
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</p>
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<a name="index-_0024max-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$max(<var>expr1</var>,<var>expr2</var>)</code></code></dt>
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<dd><p>Returns the floating point maximum of <var>expr1</var> and <var>expr2</var>.
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</p>
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<a name="index-_0024min-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$min(<var>expr1</var>,<var>expr2</var>)</code></code></dt>
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<dd><p>Returns the floating point minimum of <var>expr1</var> and <var>expr2</var>.
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</p>
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<a name="index-_0024pow-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$pow(<var>expr1</var>,<var>expr2</var>)</code></code></dt>
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<dd><p>Returns the floating point value <var>expr1</var> ^ <var>expr2</var>.
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</p>
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<a name="index-_0024round-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$round(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the nearest integer to <var>expr</var> as a floating point number.
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</p>
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<a name="index-_0024sgn-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$sgn(<var>expr</var>)</code></code></dt>
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<dd><p>Returns -1, 0, or 1 based on the sign of <var>expr</var>.
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</p>
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<a name="index-_0024sin-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$sin(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the floating point sine of <var>expr</var>.
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</p>
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<a name="index-_0024sinh-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$sinh(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the floating point hyperbolic sine of <var>expr</var>.
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</p>
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<a name="index-_0024sqrt-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$sqrt(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the floating point square root of <var>expr</var>.
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</p>
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<a name="index-_0024tan-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$tan(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the floating point tangent of <var>expr</var>.
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</p>
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<a name="index-_0024tanh-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$tanh(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the floating point hyperbolic tangent of <var>expr</var>.
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</p>
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<a name="index-_0024trunc-math-builtin_002c-TIC54X"></a>
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</dd>
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<dt><code><code>$trunc(<var>expr</var>)</code></code></dt>
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<dd><p>Returns the integer value of <var>expr</var> truncated towards zero as
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floating point.
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</p>
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</dd>
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</dl>
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<hr>
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<div class="header">
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<p>
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Next: <a href="TIC54X_002dExt.html#TIC54X_002dExt" accesskey="n" rel="next">TIC54X-Ext</a>, Previous: <a href="TIC54X_002dLocals.html#TIC54X_002dLocals" accesskey="p" rel="prev">TIC54X-Locals</a>, Up: <a href="TIC54X_002dDependent.html#TIC54X_002dDependent" accesskey="u" rel="up">TIC54X-Dependent</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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</body>
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</html>
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