Nios/cacheset2

Consider the following cache:

2^S sets
2^B block size

Write a function that will determine whether two addresses will map to the same cache set in this cache. Your function will be provided S, B, and two addresses. It must return 1 or 0 to indicate whether the two addresses map to the same cache set. S and B will be valid values for a 32-bit address.

int cacheset(unsigned int S, unsigned int B, unsigned int addr1, unsigned int addr2);

Expected solution length: Around 10 lines.

Sample Input

cacheblock(8, 4, 0, 2) (256 sets, 16-byte blocks, addresses 0 and 2)

Sample Output

r2=1

.global _start
_start:
	movi r4, 8
	movi r5, 4
	movia r6, 0
	movia r7, 2
	call cacheset
1:	br 1b    # Done

cacheset:

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