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<a href="./Home">MLton 20130715</a>
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<h1>RunningOnHPPA</h1>
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<div class="paragraph"><p>MLton runs fine on the HPPA architecture.</p></div>
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<h2 id="_notes">Notes</h2>
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<p>
When compiling for HPPA, MLton targets the 32-bit HPPA architecture.
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<p>
When compiling for HPPA, MLton doesn’t support native code
generation (<span class="monospaced">-codegen native</span>). Hence, performance is not as good as
it might be and compile times are longer. Also, the quality of code
generated by <span class="monospaced">gcc</span> is important. By default, MLton calls <span class="monospaced">gcc -O1</span>.
You can change this by calling MLton with <span class="monospaced">-cc-opt -O2</span>.
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<p>
When compiling for HPPA, MLton uses <span class="monospaced">-align 8</span> by default. While
this speeds up reals, it also may increase object sizes. If your
program does not make significant use of reals, you might see a
speedup with <span class="monospaced">-align 4</span>.
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