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<a href="./Home">MLton 20201002</a>
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<h1>RunningOnAMD64</h1>
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<div class="paragraph"><p>MLton runs fine on the AMD64 (aka "x86-64" or "x64") architecture.</p></div>
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<h2 id="_notes">Notes</h2>
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When compiling for AMD64, MLton targets the 64-bit ABI.
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On AMD64, MLton supports native code generation (<span class="monospaced">-codegen native</span> or <span class="monospaced">-codegen amd64</span>).
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When compiling for AMD64, MLton uses <span class="monospaced">-align 8</span> by default.  Using
<span class="monospaced">-align 4</span> may be incompatible with optimized builds of the <a href="GMP">GMP</a>
library, which assume 8-byte alignment.  (See the thread at
<a href="http://www.mlton.org/pipermail/mlton/2009-October/030674.html">http://www.mlton.org/pipermail/mlton/2009-October/030674.html</a> for more
details.)
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