| <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, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
| 2000, 2001, 2002, 2006, 2007, 2008, 2009, 2010 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> |
| <link rel="stylesheet" type="text/css" href="../cs.css"> |
| </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">9.26.2.1 Macros</h5> |
| |
| <p><a name="index-Macros_002c-MSP-430-1384"></a><a name="index-MSP-430-macros-1385"></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> |
| |
