#f blocks in Cache = C then log C bits
W words present in per Block
Word Offset = log W bits
Tag Bits = 6 bits.
So by Direct Mapping Physical Address = 6+ log C + log W
Now the Cache Memory is upgraded with 64 way set Associative.
1 set acquire 64 blocks, #f sets = C/64 = log(C/64)
So by Associative Mapping Physical Address = Ntag + Log(C/64) +Log W
Physical Address are same.
Ntag =12 bits.