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Central Processing Unit Q.25

0. If we use internal data forwarding to speed up the performance of A CPU (R1, R2 and R3 are registers and M[100] is a memory reference), then the sequence of operations
R1 ￫ M[100]
M [100] ￫ R2
M [100] ￫ R3
can be replaced by

  • Option : D
  • Explanation : To achieve speedup we can transfer directly like the code given below.
    R1 ￫ R2
    R1 ￫ R3
    R1 ￫ M[100]
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