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| <a name="MSP430-Options"></a> |
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| <h4 class="subsection">9.29.1 Options</h4> |
| |
| <p><a name="index-MSP-430-options-_0028none_0029-1737"></a><a name="index-options-for-MSP430-_0028none_0029-1738"></a> |
| <dl> |
| <dt><code>-mmcu</code><dd>selects the mcu architecture. If the architecture is 430Xv2 then this |
| also enables NOP generation unless the <samp><span class="option">-mN</span></samp> is also specified. |
| |
| <br><dt><code>-mcpu</code><dd>selects the cpu architecture. If the architecture is 430Xv2 then this |
| also enables NOP generation unless the <samp><span class="option">-mN</span></samp> is also specified. |
| |
| <br><dt><code>-msilicon-errata=</code><var>name</var><code>[,</code><var>name</var><code>...]</code><dd>Implements a fixup for named silicon errata. Multiple silicon errata |
| can be specified by multiple uses of the <samp><span class="option">-msilicon-errata</span></samp> |
| option and/or by including the errata names, separated by commas, on |
| an individual <samp><span class="option">-msilicon-errata</span></samp> option. Errata names |
| currently recognised by the assembler are: |
| |
| <dl> |
| <dt><code>cpu4</code><dd><code>PUSH #4</code> and <samp><span class="option">PUSH #8</span></samp> need longer encodings on the |
| MSP430. This option is enabled by default, and cannot be disabled. |
| <br><dt><code>cpu8</code><dd>Do not set the <code>SP</code> to an odd value. |
| <br><dt><code>cpu11</code><dd>Do not update the <code>SR</code> and the <code>PC</code> in the same instruction. |
| <br><dt><code>cpu12</code><dd>Do not use the <code>PC</code> in a <code>CMP</code> or <code>BIT</code> instruction. |
| <br><dt><code>cpu13</code><dd>Do not use an arithmetic instruction to modify the <code>SR</code>. |
| <br><dt><code>cpu19</code><dd>Insert <code>NOP</code> after <code>CPUOFF</code>. |
| </dl> |
| |
| <br><dt><code>-msilicon-errata-warn=</code><var>name</var><code>[,</code><var>name</var><code>...]</code><dd>Like the <samp><span class="option">-msilicon-errata</span></samp> option except that instead of |
| fixing the specified errata, a warning message is issued instead. |
| This option can be used alongside <samp><span class="option">-msilicon-errata</span></samp> to |
| generate messages whenever a problem is fixed, or on its own in order |
| to inspect code for potential problems. |
| |
| <br><dt><code>-mP</code><dd>enables polymorph instructions handler. |
| |
| <br><dt><code>-mQ</code><dd>enables relaxation at assembly time. DANGEROUS! |
| |
| <br><dt><code>-ml</code><dd>indicates that the input uses the large code model. |
| |
| <br><dt><code>-mn</code><dd>enables the generation of a NOP instruction following any instruction |
| that might change the interrupts enabled/disabled state. The |
| pipelined nature of the MSP430 core means that any instruction that |
| changes the interrupt state (<code>EINT</code>, <code>DINT</code>, <code>BIC #8, |
| SR</code>, <code>BIS #8, SR</code> or <code>MOV.W <>, SR</code>) must be |
| followed by a NOP instruction in order to ensure the correct |
| processing of interrupts. By default it is up to the programmer to |
| supply these NOP instructions, but this command-line option enables |
| the automatic insertion by the assembler, if they are missing. |
| |
| <br><dt><code>-mN</code><dd>disables the generation of a NOP instruction following any instruction |
| that might change the interrupts enabled/disabled state. This is the |
| default behaviour. |
| |
| <br><dt><code>-my</code><dd>tells the assembler to generate a warning message if a NOP does not |
| immediately follow an instruction that enables or disables |
| interrupts. This is the default. |
| |
| <p>Note that this option can be stacked with the <samp><span class="option">-mn</span></samp> option so |
| that the assembler will both warn about missing NOP instructions and |
| then insert them automatically. |
| |
| <br><dt><code>-mY</code><dd>disables warnings about missing NOP instructions. |
| |
| <br><dt><code>-md</code><dd>mark the object file as one that requires data to copied from ROM to |
| RAM at execution startup. Disabled by default. |
| |
| <br><dt><code>-mdata-region=</code><var>region</var><dd>Select the region data will be placed in. |
| Region placement is performed by the compiler and linker. The only effect this |
| option will have on the assembler is that if <var>upper</var> or <var>either</var> is |
| selected, then the symbols to initialise high data and bss will be defined. |
| Valid <var>region</var> values are: |
| <dl> |
| <dt><code>none</code><br><dt><code>lower</code><br><dt><code>upper</code><br><dt><code>either</code><dd></dl> |
| |
| </dl> |
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