Consider the following sequence of micro-operations.
MBR ← PC MAR ← X PC ← Y Memory ← MBR
Which one of the following is a possible operation performed by this sequence?
(A) Instruction fetch
(B) Operand fetch
(C) Conditional branch
(D) Initiation of interrupt service
f(x',y,z') = f(x,y,z) means y remains same and the for x z values the function does`nt have any effect .
so in kmap for 2 3 6 7 y is 1 . and the remaining 0 1 4 5 we put dontcare . so in the function 2 3 6 7 will be there but all these dont care have 2 choices either its present or not present . 24 = 16 possibilities . ( i may be wrong :D )
@Saurav, Ohh, Sorry I misinterpreted your question,
but in this case also similar idea can be applied using composition of functions.
Yes, answer would be the same, i.e. 2^4 = 16.