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- Next: <a href="NDS32_002dOps.html#NDS32_002dOps" accesskey="n" rel="next">NDS32-Ops</a>, Previous: <a href="NDS32_002dChars.html#NDS32_002dChars" accesskey="p" rel="prev">NDS32-Chars</a>, Up: <a href="NDS32-Syntax.html#NDS32-Syntax" accesskey="u" rel="up">NDS32 Syntax</a> [<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-13"></a>
- <h4 class="subsubsection">9.30.2.2 Register Names</h4>
- <dl compact="compact">
- <dt><code>General purpose registers (GPR)</code></dt>
- <dd><p>There are 32 32-bit general purpose registers $r0 to $r31.
- </p>
- </dd>
- <dt><code>Accumulators d0 and d1</code></dt>
- <dd><p>64-bit accumulators: $d0.hi, $d0.lo, $d1.hi, and $d1.lo.
- </p>
- </dd>
- <dt><code>Assembler reserved register $ta</code></dt>
- <dd><p>Register $ta ($r15) is reserved for assembler using.
- </p>
- </dd>
- <dt><code>Operating system reserved registers $p0 and $p1</code></dt>
- <dd><p>Registers $p0 ($r26) and $p1 ($r27) are used by operating system as scratch
- registers.
- </p>
- </dd>
- <dt><code>Frame pointer $fp</code></dt>
- <dd><p>Register $r28 is regarded as the frame pointer.
- </p>
- </dd>
- <dt><code>Global pointer</code></dt>
- <dd><p>Register $r29 is regarded as the global pointer.
- </p>
- </dd>
- <dt><code>Link pointer</code></dt>
- <dd><p>Register $r30 is regarded as the link pointer.
- </p>
- </dd>
- <dt><code>Stack pointer</code></dt>
- <dd><p>Register $r31 is regarded as the stack pointer.
- </p></dd>
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