A non-pipelined CPU has 12 general purpose registers (R0, R1, R2,….R12). Following operations are supported
MUL operations takes two clock cycles, ADD takes one clock cycle.
Calculate minimum number of clock cycles required to compute the value of the expression XY + XYZ + YZ. The variables X, Y, Z are initially available in registers R0, R1 and R2 and contents of these registers must not be modified.