Q. 19 In a simplified computer the instructions are:
The computer has only two registers, and OP is either ADD or SUB. Consider
the following basic block:
Assume that all operands are initially in memory. The final value of the computation
should be in memory. What is the minimum number of MOV instructions in the
code generated for this basic block?
(A) 2
(B) 3
(C) 5
(D) 6
Answer: (B)
Explanation:
