Computer Systems Architecture

Control

Hazard detection

unit

+

4

PC Instruction

memory

Sign- extend

Registers =

+

Fowarding unit

ALU

ID/EX

MEM/WB

EX/MEM

WB

M

EX

Shift left 2

IF.Flush

IF/ID

M u x

M u x

Data memory

WB

WBM

0

M u x

M u x

M u x

M u x