Detecting Return icode valA dstE dstM Execute icode ifun valA valB Sel+Fwd Fwd Decode w vaIN D looe un iA e vac vap Condition Trigger Processing ret IRET in(D icode, E_icode, M_icode] Figure 4.64 P347 Processor– 13 – Processor Detecting Return Condition Trigger Processing ret IRET in { D_icode, E_icode, M_icode } M D Register file CC ALU rB dstE dstM ALU A ALU B srcA srcB ALU fun. Decode Execute A B M E W _valM W _valE icode Bch valE valA dstE dstM E icode ifun valC valA valB dstE dstM srcA srcB icode ifun rA valC valP d_srcA d_srcB e_Bch M_Bch Sel+Fwd A Fwd B M_valE e_valE Figure 4.64 P347