Problem1 Problem 2 In this problem we will extend the single-cycle datapath. We wish to add a

Problem1

Problem 2

 

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In this problem we will extend the single-cycle datapath. We wish to add a new instruction, Subtract Branch-Register on Zero (SBRZ Rd, Rn, Rm): R[Rd] =R[Rn]-R [Rm]; and if (R[Rn]-R [Rm]==0) PC-R [Rn]; else PC-PC+4; The instruction subtracts the value of register Rm (R[Rm]) from the value of register Rn (R[Rn]) and stores the result in register Rd (R[Rd] =R[Rn]-R [Rm]) and if the result was 0 it will branch to a new address that is in Rn (PC-R [Rn]). Note that the instruction SBRZ uses R-type format. In this problem we will extend the single-cycle datapath. We wish to add a new instruction, Subtract Branch-Register on Zero (SBRZ Rd, Rn, Rm): R[Rd] =R[Rn]-R [Rm]; and if (R[Rn]-R [Rm]==0) PC-R [Rn]; else PC-PC+4; The instruction subtracts the value of register Rm (R[Rm]) from the value of register Rn (R[Rn]) and stores the result in register Rd (R[Rd] =R[Rn]-R [Rm]) and if the result was 0 it will branch to a new address that is in Rn (PC-R [Rn]). Note that the instruction SBRZ uses R-type format.

Answer rating: 100% (QA)

ALU Since SBRZ is a subtract operation the ALU should be capable of performing a subtraction between ... View the full answer