Question

What is the purpose of the execution trace cache?

a.

It is responsible for caching the microcodes of frequently executed instructions

b.

It is used for implementing each instruction supported by the processor

c.

It is a type of memory used by IA-32 processors

d.

None of the above

Posted under Reverse Engineering

Answer: (a).It is responsible for caching the microcodes of frequently executed instructions Explanation:IA-32 processors employ an execution trace cache that is responsible for caching the microcodes of frequently executed instructions to avoid significant performance bottlenecks caused by constantly fetching instruction microcode from ROM.

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