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| <h5 class="subsubsection">9.30.2.2 Register Names</h5> |
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| <dl> |
| <dt><code>General purpose registers (GPR)</code><dd>There are 32 32-bit general purpose registers $r0 to $r31. |
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| <br><dt><code>Accumulators d0 and d1</code><dd>64-bit accumulators: $d0.hi, $d0.lo, $d1.hi, and $d1.lo. |
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| <br><dt><code>Assembler reserved register $ta</code><dd>Register $ta ($r15) is reserved for assembler using. |
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| <br><dt><code>Operating system reserved registers $p0 and $p1</code><dd>Registers $p0 ($r26) and $p1 ($r27) are used by operating system as scratch |
| registers. |
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| <br><dt><code>Frame pointer $fp</code><dd>Register $r28 is regarded as the frame pointer. |
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| <br><dt><code>Global pointer</code><dd>Register $r29 is regarded as the global pointer. |
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| <br><dt><code>Link pointer</code><dd>Register $r30 is regarded as the link pointer. |
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| <br><dt><code>Stack pointer</code><dd>Register $r31 is regarded as the stack pointer. |
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