<html lang="en"> <head> <title>MSP430-Macros - Using as</title> <meta http-equiv="Content-Type" content="text/html"> <meta name="description" content="Using as"> <meta name="generator" content="makeinfo 4.13"> <link title="Top" rel="start" href="index.html#Top"> <link rel="up" href="MSP430-Syntax.html#MSP430-Syntax" title="MSP430 Syntax"> <link rel="next" href="MSP430_002dChars.html#MSP430_002dChars" title="MSP430-Chars"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <!-- This file documents the GNU Assembler "as". Copyright (C) 1991-2015 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled ``GNU Free Documentation License''. --> <meta http-equiv="Content-Style-Type" content="text/css"> <style type="text/css"><!-- pre.display { font-family:inherit } pre.format { font-family:inherit } pre.smalldisplay { font-family:inherit; font-size:smaller } pre.smallformat { font-family:inherit; font-size:smaller } pre.smallexample { font-size:smaller } pre.smalllisp { font-size:smaller } span.sc { font-variant:small-caps } span.roman { font-family:serif; font-weight:normal; } span.sansserif { font-family:sans-serif; font-weight:normal; } --></style> </head> <body> <div class="node"> <a name="MSP430-Macros"></a> <a name="MSP430_002dMacros"></a> <p> Next: <a rel="next" accesskey="n" href="MSP430_002dChars.html#MSP430_002dChars">MSP430-Chars</a>, Up: <a rel="up" accesskey="u" href="MSP430-Syntax.html#MSP430-Syntax">MSP430 Syntax</a> <hr> </div> <h5 class="subsubsection">9.29.2.1 Macros</h5> <p><a name="index-Macros_002c-MSP-430-1631"></a><a name="index-MSP-430-macros-1632"></a>The macro syntax used on the MSP 430 is like that described in the MSP 430 Family Assembler Specification. Normal <code>as</code> macros should still work. <p>Additional built-in macros are: <dl> <dt><code>llo(exp)</code><dd>Extracts least significant word from 32-bit expression 'exp'. <br><dt><code>lhi(exp)</code><dd>Extracts most significant word from 32-bit expression 'exp'. <br><dt><code>hlo(exp)</code><dd>Extracts 3rd word from 64-bit expression 'exp'. <br><dt><code>hhi(exp)</code><dd>Extracts 4rd word from 64-bit expression 'exp'. </dl> <p>They normally being used as an immediate source operand. <pre class="smallexample"> mov #llo(1), r10 ; == mov #1, r10 mov #lhi(1), r10 ; == mov #0, r10 </pre> </body></html>