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- <h2 class="section">3.8 Emulation Primitives</h2>
- <p>The functions documented in this section can be used to take very
- specific control over the evaluation of virtual code applications. It is
- unlikely that a client program will have any need for them unless it
- aims to replace or extend the <code>avm_apply</code> function.
- </p>
- <p>The virtual machine is somewhat removed from a conventional von Neumann
- model of computation, so emulating it in C or any other imperative
- language is less straightforward than one would prefer. An elaborate
- system of interdependent data structures is used to represent partially
- evaluated computations, which does not particularly lend itself to a
- convenient, modular API. The abstraction provided by the functions in
- this section is limited mainly to that of simple memory management and
- stack operations. Consequently, a developer wishing to build on them
- effectively would need to <em>grok</em> the data structures involved,
- which are described in some detail.
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- <tr><td align="left" valign="top"><a href="Lists-of-Pairs-of-Ports.html#Lists-of-Pairs-of-Ports">3.8.1 Lists of Pairs of Ports</a></td><td> </td><td align="left" valign="top">
- </td></tr>
- <tr><td align="left" valign="top"><a href="Ports-and-Packets.html#Ports-and-Packets">3.8.2 Ports and Packets</a></td><td> </td><td align="left" valign="top">
- </td></tr>
- <tr><td align="left" valign="top"><a href="Instruction-Stacks.html#Instruction-Stacks">3.8.3 Instruction Stacks</a></td><td> </td><td align="left" valign="top">
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