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<title>SH64-Regs - Using as</title>
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This file documents the GNU Assembler "as".
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Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001, 2002,
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2006, 2007 Free Software Foundation, Inc.
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<p>
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<a name="SH64_002dRegs"></a>Next: <a rel="next" accesskey="n" href="SH64_002dAddressing.html#SH64_002dAddressing">SH64-Addressing</a>,
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Previous: <a rel="previous" accesskey="p" href="SH64_002dChars.html#SH64_002dChars">SH64-Chars</a>,
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Up: <a rel="up" accesskey="u" href="SH64-Syntax.html#SH64-Syntax">SH64 Syntax</a>
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<h5 class="subsubsection">9.29.2.2 Register Names</h5>
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<p><a name="index-SH64-registers-1481"></a><a name="index-registers_002c-SH64-1482"></a>You can use the predefined symbols <span class="samp">r0</span> through <span class="samp">r63</span> to refer
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to the SH64 general registers, <span class="samp">cr0</span> through <code>cr63</code> for
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control registers, <span class="samp">tr0</span> through <span class="samp">tr7</span> for target address
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registers, <span class="samp">fr0</span> through <span class="samp">fr63</span> for single-precision floating
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point registers, <span class="samp">dr0</span> through <span class="samp">dr62</span> (even numbered registers
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only) for double-precision floating point registers, <span class="samp">fv0</span> through
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<span class="samp">fv60</span> (multiples of four only) for single-precision floating point
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vectors, <span class="samp">fp0</span> through <span class="samp">fp62</span> (even numbered registers only)
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for single-precision floating point pairs, <span class="samp">mtrx0</span> through
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<span class="samp">mtrx48</span> (multiples of 16 only) for 4x4 matrices of
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single-precision floating point registers, <span class="samp">pc</span> for the program
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counter, and <span class="samp">fpscr</span> for the floating point status and control
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register.
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<p>You can also refer to the control registers by the mnemonics <span class="samp">sr</span>,
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<span class="samp">ssr</span>, <span class="samp">pssr</span>, <span class="samp">intevt</span>, <span class="samp">expevt</span>, <span class="samp">pexpevt</span>,
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<span class="samp">tra</span>, <span class="samp">spc</span>, <span class="samp">pspc</span>, <span class="samp">resvec</span>, <span class="samp">vbr</span>,
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<span class="samp">tea</span>, <span class="samp">dcr</span>, <span class="samp">kcr0</span>, <span class="samp">kcr1</span>, <span class="samp">ctc</span>, and
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<span class="samp">usr</span>.
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