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<title>Using as: SH64-Regs</title>

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Next: <a href="SH64_002dAddressing.html#SH64_002dAddressing" accesskey="n" rel="next">SH64-Addressing</a>, Previous: <a href="SH64_002dChars.html#SH64_002dChars" accesskey="p" rel="prev">SH64-Chars</a>, Up: <a href="SH64-Syntax.html#SH64-Syntax" accesskey="u" rel="up">SH64 Syntax</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
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<a name="Register-Names-14"></a>
<h4 class="subsubsection">9.42.2.2 Register Names</h4>

<a name="index-SH64-registers"></a>
<a name="index-registers_002c-SH64"></a>
<p>You can use the predefined symbols &lsquo;<samp>r0</samp>&rsquo; through &lsquo;<samp>r63</samp>&rsquo; to refer
to the SH64 general registers, &lsquo;<samp>cr0</samp>&rsquo; through <code>cr63</code> for
control registers, &lsquo;<samp>tr0</samp>&rsquo; through &lsquo;<samp>tr7</samp>&rsquo; for target address
registers, &lsquo;<samp>fr0</samp>&rsquo; through &lsquo;<samp>fr63</samp>&rsquo; for single-precision floating
point registers, &lsquo;<samp>dr0</samp>&rsquo; through &lsquo;<samp>dr62</samp>&rsquo; (even numbered registers
only) for double-precision floating point registers, &lsquo;<samp>fv0</samp>&rsquo; through
&lsquo;<samp>fv60</samp>&rsquo; (multiples of four only) for single-precision floating point
vectors, &lsquo;<samp>fp0</samp>&rsquo; through &lsquo;<samp>fp62</samp>&rsquo; (even numbered registers only)
for single-precision floating point pairs, &lsquo;<samp>mtrx0</samp>&rsquo; through
&lsquo;<samp>mtrx48</samp>&rsquo; (multiples of 16 only) for 4x4 matrices of
single-precision floating point registers, &lsquo;<samp>pc</samp>&rsquo; for the program
counter, and &lsquo;<samp>fpscr</samp>&rsquo; for the floating point status and control
register.
</p>
<p>You can also refer to the control registers by the mnemonics &lsquo;<samp>sr</samp>&rsquo;,
&lsquo;<samp>ssr</samp>&rsquo;, &lsquo;<samp>pssr</samp>&rsquo;, &lsquo;<samp>intevt</samp>&rsquo;, &lsquo;<samp>expevt</samp>&rsquo;, &lsquo;<samp>pexpevt</samp>&rsquo;,
&lsquo;<samp>tra</samp>&rsquo;, &lsquo;<samp>spc</samp>&rsquo;, &lsquo;<samp>pspc</samp>&rsquo;, &lsquo;<samp>resvec</samp>&rsquo;, &lsquo;<samp>vbr</samp>&rsquo;,
&lsquo;<samp>tea</samp>&rsquo;, &lsquo;<samp>dcr</samp>&rsquo;, &lsquo;<samp>kcr0</samp>&rsquo;, &lsquo;<samp>kcr1</samp>&rsquo;, &lsquo;<samp>ctc</samp>&rsquo;, and
&lsquo;<samp>usr</samp>&rsquo;.
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