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| <title>Using as: LM32-Regs</title> |
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| Next: <a href="LM32_002dModifiers.html#LM32_002dModifiers" accesskey="n" rel="next">LM32-Modifiers</a>, Up: <a href="LM32-Syntax.html#LM32-Syntax" accesskey="u" rel="up">LM32 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-9"></a> |
| <h4 class="subsubsection">9.20.2.1 Register Names</h4> |
| |
| <a name="index-LM32-register-names"></a> |
| <a name="index-register-names_002c-LM32"></a> |
| |
| <p>LM32 has 32 x 32-bit general purpose registers ‘<samp>r0</samp>’, |
| ‘<samp>r1</samp>’, ... ‘<samp>r31</samp>’. |
| </p> |
| <p>The following aliases are defined: ‘<samp>gp</samp>’ - ‘<samp>r26</samp>’, |
| ‘<samp>fp</samp>’ - ‘<samp>r27</samp>’, ‘<samp>sp</samp>’ - ‘<samp>r28</samp>’, |
| ‘<samp>ra</samp>’ - ‘<samp>r29</samp>’, ‘<samp>ea</samp>’ - ‘<samp>r30</samp>’, |
| ‘<samp>ba</samp>’ - ‘<samp>r31</samp>’. |
| </p> |
| <p>LM32 has the following Control and Status Registers (CSRs). |
| </p> |
| <dl compact="compact"> |
| <dt><code>IE</code></dt> |
| <dd><p>Interrupt enable. |
| </p></dd> |
| <dt><code>IM</code></dt> |
| <dd><p>Interrupt mask. |
| </p></dd> |
| <dt><code>IP</code></dt> |
| <dd><p>Interrupt pending. |
| </p></dd> |
| <dt><code>ICC</code></dt> |
| <dd><p>Instruction cache control. |
| </p></dd> |
| <dt><code>DCC</code></dt> |
| <dd><p>Data cache control. |
| </p></dd> |
| <dt><code>CC</code></dt> |
| <dd><p>Cycle counter. |
| </p></dd> |
| <dt><code>CFG</code></dt> |
| <dd><p>Configuration. |
| </p></dd> |
| <dt><code>EBA</code></dt> |
| <dd><p>Exception base address. |
| </p></dd> |
| <dt><code>DC</code></dt> |
| <dd><p>Debug control. |
| </p></dd> |
| <dt><code>DEBA</code></dt> |
| <dd><p>Debug exception base address. |
| </p></dd> |
| <dt><code>JTX</code></dt> |
| <dd><p>JTAG transmit. |
| </p></dd> |
| <dt><code>JRX</code></dt> |
| <dd><p>JTAG receive. |
| </p></dd> |
| <dt><code>BP0</code></dt> |
| <dd><p>Breakpoint 0. |
| </p></dd> |
| <dt><code>BP1</code></dt> |
| <dd><p>Breakpoint 1. |
| </p></dd> |
| <dt><code>BP2</code></dt> |
| <dd><p>Breakpoint 2. |
| </p></dd> |
| <dt><code>BP3</code></dt> |
| <dd><p>Breakpoint 3. |
| </p></dd> |
| <dt><code>WP0</code></dt> |
| <dd><p>Watchpoint 0. |
| </p></dd> |
| <dt><code>WP1</code></dt> |
| <dd><p>Watchpoint 1. |
| </p></dd> |
| <dt><code>WP2</code></dt> |
| <dd><p>Watchpoint 2. |
| </p></dd> |
| <dt><code>WP3</code></dt> |
| <dd><p>Watchpoint 3. |
| </p></dd> |
| </dl> |
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