We can see by the instruction encodings (Figures 4.2 and 4.3) that the rrmovq instruction is the unconditional version of a more general class of instructions that include the conditional moves. Show how you would modify the steps for the rrmovq instruction below to also handle the six conditional move instructions. You may find it useful to see how the implementation of the jXX instructions (Figure 4.21) handles conditional behavior.

Figures 4.2

Figures 4.3

Figures 4.21

Transcribed Image Text:

Stage Fetch Decode Execute Memory Write back PC update cmovXX rA, rB + icode: ifun M₁ [PC] rA:rB M₁[PC + 1] PC+2 valp valA valE - R[RA] 0+ valA R[rB] valE PC- valp