(b) [3%] Assume 185 and 169 are signed 8-bit decimal integers store in two's complement format. Calculate 185+169. The result should be written in decimal.

(b) [3%] If the processor has a base CPI of 1, and clock rate of 4 GHz. Assume the memory access time is 100 ns, including al the miss handling. Suppose the miss rate per instruction at the primary cache is 3%. Now we add a secondary data cache that has a 5 ns access time for either a hit or a miss, and is large enough to reduce the miss rate to main memory to 0.5%. What is the total CPI of this two-level cache?

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(b) [3%] Assume 185 and 169 are signed 8-bit decimal integers store in two's complement format. Calculate 185+169. The result should be written in decimal.

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