Question: 2. How many times does the processor need to refer to memory when it fetches and executes an indirect-address- mode instruction if the instruction is

2. How many times does the processor need to refer to memory when it fetches and executes an indirect-address- mode instruction if the instruction is

(a) a computation requiring a single operand

(b) a branch?

3. Suppose a computer using direct mapped cache has 2 40 bytes of byte-addressable main memory and a cache of 64 blocks, where each block contains 32 bytes.

(a). how many blocks pf main memory are there ?

(b) .what is the format of a memory address as seen by the cache, that is, what are the sizes of the tag,block and offset fields.

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