74 lines
3.5 KiB
HTML
74 lines
3.5 KiB
HTML
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<title>SH-Regs - Using as</title>
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<link rel="up" href="SH-Syntax.html#SH-Syntax" title="SH Syntax">
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<link rel="prev" href="SH_002dChars.html#SH_002dChars" title="SH-Chars">
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This file documents the GNU Assembler "as".
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Copyright (C) 1991-2019 Free Software Foundation, Inc.
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<a name="SH-Regs"></a>
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<a name="SH_002dRegs"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="SH_002dAddressing.html#SH_002dAddressing">SH-Addressing</a>,
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Previous: <a rel="previous" accesskey="p" href="SH_002dChars.html#SH_002dChars">SH-Chars</a>,
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Up: <a rel="up" accesskey="u" href="SH-Syntax.html#SH-Syntax">SH Syntax</a>
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<h5 class="subsubsection">9.43.2.2 Register Names</h5>
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<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>’,
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‘<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>’,
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‘<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>’,
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and ‘<samp><span class="samp">r15</span></samp>’ to refer to the SH registers.
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<p>The SH also has these control registers:
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<dl>
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<dt><code>pr</code><dd>procedure register (holds return address)
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<br><dt><code>pc</code><dd>program counter
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<br><dt><code>mach</code><dt><code>macl</code><dd>high and low multiply accumulator registers
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<br><dt><code>sr</code><dd>status register
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<br><dt><code>gbr</code><dd>global base register
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<br><dt><code>vbr</code><dd>vector base register (for interrupt vectors)
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</dl>
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</body></html>
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