<html lang="en"> <head> <title>SH-Regs - 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="SH-Syntax.html#SH-Syntax" title="SH Syntax"> <link rel="prev" href="SH_002dChars.html#SH_002dChars" title="SH-Chars"> <link rel="next" href="SH_002dAddressing.html#SH_002dAddressing" title="SH-Addressing"> <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="SH-Regs"></a> <a name="SH_002dRegs"></a> <p> Next: <a rel="next" accesskey="n" href="SH_002dAddressing.html#SH_002dAddressing">SH-Addressing</a>, Previous: <a rel="previous" accesskey="p" href="SH_002dChars.html#SH_002dChars">SH-Chars</a>, Up: <a rel="up" accesskey="u" href="SH-Syntax.html#SH-Syntax">SH Syntax</a> <hr> </div> <h5 class="subsubsection">9.40.2.2 Register Names</h5> <p><a name="index-SH-registers-1946"></a><a name="index-registers_002c-SH-1947"></a>You can use the predefined symbols ‘<samp><span class="samp">r0</span></samp>’, ‘<samp><span class="samp">r1</span></samp>’, ‘<samp><span class="samp">r2</span></samp>’, ‘<samp><span class="samp">r3</span></samp>’, ‘<samp><span class="samp">r4</span></samp>’, ‘<samp><span class="samp">r5</span></samp>’, ‘<samp><span class="samp">r6</span></samp>’, ‘<samp><span class="samp">r7</span></samp>’, ‘<samp><span class="samp">r8</span></samp>’, ‘<samp><span class="samp">r9</span></samp>’, ‘<samp><span class="samp">r10</span></samp>’, ‘<samp><span class="samp">r11</span></samp>’, ‘<samp><span class="samp">r12</span></samp>’, ‘<samp><span class="samp">r13</span></samp>’, ‘<samp><span class="samp">r14</span></samp>’, and ‘<samp><span class="samp">r15</span></samp>’ to refer to the SH registers. <p>The SH also has these control registers: <dl> <dt><code>pr</code><dd>procedure register (holds return address) <br><dt><code>pc</code><dd>program counter <br><dt><code>mach</code><dt><code>macl</code><dd>high and low multiply accumulator registers <br><dt><code>sr</code><dd>status register <br><dt><code>gbr</code><dd>global base register <br><dt><code>vbr</code><dd>vector base register (for interrupt vectors) </dl> </body></html>