L16_A

Control Points and Signals

Designing Main Control

Datapath with Mux and Control

Datapath with Control Unit

Instruction Fetch at Start of Add

Instruction Decode of Add

ALU Operation during Add

Write Back at the End of Add

Datapath Operation for lw

Datapath Operation for beq

ALU Control

Logic Equation for ALUctr

The Resultant ALU Control Block

The Main Control Unit

Truth Table of Control Signals

Truth Table for RegWrite

PLA Implementing Main Control