Match Between Host and Target

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Generally, the closer the match between the host and the target, the easier it is to write a simulator, and the better the efficiency. Possible mismatches include:

Note that target support for self-modifying code may be treated as a special case of synchronization. For example, target machines with no caches or unified instruction and data caches will typically write instructions using ordinary store instructions. Therefore, all store instructions must be treated as potential code-modifying instructions.

For timing-accurate simulation (see Talisman and RSIM), some matches between the host and target can improve the efficiency, but many do not.


From instruction-set simulation and tracing