Datapath Components

Abstract the datapath by its principal parts

Read

register1

Read

register2

Write

register

Write

data

Registers

Read

data 1

Read

data 2

Zero

ALU

result

Read

address

Write

address

Write

data

Data

Memory

ALU

Read

data

M

u

x

M

u

x

Sign

extend

Read

address

Instruction

Memory

Instruction

PC

4

Add

Generally, processing and bits move left to right

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