| <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) 1991-2019 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">9.43.2.2 Register Names</h5> |
| |
| <p><a name="index-SH-registers-2123"></a><a name="index-registers_002c-SH-2124"></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> |
| |