Question

Considering the following sequence of MIPS code, your task is to use pipelining building blocks to execute this set of instructions. add $R2, $R0, $R0 lw $R1, 0($R2) addi $R3, $R1, 20 add $R1, $R2, $R0 or $R1, $R2, $R0 A) How many stall cycles would occur in a MIPS pipelining without Pipeline Forwarding? Using the pipelining building blocks to explain your result. B) How many stall cycles would occur in a MIPS pipelining with Pipeline Forwarding? We assume that Pipeline Forwarding exists between DM-to-ALU, ALU-to-ALU, and DM-to-DM. Using the pipelining building blocks to explain your result.

          Considering the following sequence of MIPS code, your task is to use pipelining building blocks to execute this set of instructions.

add $R2, $R0, $R0
lw $R1, 0($R2)
addi $R3, $R1, 20
add $R1, $R2, $R0
or $R1, $R2, $R0

A) How many stall cycles would occur in a MIPS pipelining without Pipeline Forwarding? Using the pipelining building blocks to explain your result.

B) How many stall cycles would occur in a MIPS pipelining with Pipeline Forwarding? We assume that Pipeline Forwarding exists between DM-to-ALU, ALU-to-ALU, and DM-to-DM. Using the pipelining building blocks to explain your result.

Added by Joshua W.

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