Question

Consider one direct mapped cache with four sectors holding one block per sector and one 32-bit word per block. The machine is byte addressed on word boundaries and uses write allocation with write back.

For each of the following cache accesses, is it a hit or miss? If it is a miss, identify the type of miss (compulsory, capacity, or conflict miss). Assume the cache starts out completely invalidated.

read 0x00

read 0x04

write 0x08

read 0x10

read 0x08

write 0x00

Answer 1