Question

Problem 4 (10 points): Examine the difficulty of adding a proposed ss rs1, rs2, imm (Store Sum) instruction to RISC-V. Interpretation: Mem[Reg[rs1]] = Reg[rs2]+imm a) Which new functional blocks (if any) do we need for this instruction? b) Which existing functional blocks (if any) require modification? c) What new signals do we need (if any) from the control unit to support this instruction? d) Modify the figure below to demonstrate an implementation of this new instruction. (Just draw the modified part.)

          Problem 4 (10 points):
Examine the difficulty of adding a proposed ss rs1, rs2, imm (Store Sum) instruction to RISC-V.
Interpretation: Mem[Reg[rs1]] = Reg[rs2]+imm
a) Which new functional blocks (if any) do we need for this instruction?
b) Which existing functional blocks (if any) require modification?
c) What new signals do we need (if any) from the control unit to support this instruction?
d) Modify the figure below to demonstrate an implementation of this new instruction. (Just
draw the modified part.)

Problem 4 (10 points):
Examine the difficulty of adding a proposed ss rs1, rs2, imm (Store Sum) instruction to RISC-V.
Interpretation: Mem[Reg[rs1]] = Reg[rs2]+imm
a) Which new functional blocks (if any) do we need for this instruction?
b) Which existing functional blocks (if any) require modification?
c) What new signals do we need (if any) from the control unit to support this instruction?
d) Modify the figure below to demonstrate an implementation of this new instruction. (Just
draw the modified part.)

Added by Iker W.

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