Computer Basics

Datapath Operations

The Register File

Bit Level view of the Register File

The Arithmatic Logic Unit(ALU)

The Arithmatic Logic Unit(ALU)

MemoryLocal and Main

Instructions and Datapathfor Register-to-Register Operations

Instructions and Datapathfor Store Operation

SW R4, 0X4385

Instructions and Datapathfor Load Operation

LW R21, 0X23A9

Variations in Instruction sets & Datapaths

Datapath forsw R2, 4(R30) operation

Say, [R30]=4500 [R2] =3245 values are in decimal

Enhancement of Instruction set

SHL R14, R8, 3 shift left the content of R8 by 3 and place in R14

SHR R2,R27, 2 shift right the content of R27 by 2 and place in R2

Source

A First Course in Digital Systems Design - An Integrated Approach

by John P. Uyemura

Brooks/Cole Publishing Company, 1999. (required)