Enhancing Data Path M 4-bit Reg X A L U

Slides:

Advertisements

Similar presentations

Computer Organization, Bus Structure

Advertisements

Adding the Jump Instruction

Pipeline Example: cycle 1 lw R10,9(R1) sub R11,R2, R3 and R12,R4, R5 or R13,R6, R7.

Experiment 2 PIC Program Execution & Built-In Self-Test.

Chapter 6 Microlevel of H1 and V1. We start with some concepts from Chapter 5 that are essential for this chapter.

The Processor: Datapath & Control

VHDL Development for ELEC7770 VLSI Project Chris Erickson Graduate Student Department of Electrical and Computer Engineering Auburn University, Auburn,

Computer Basics. Datapath Operations The Register File.

Computer Structure - Datapath and Control Goal: Design a Datapath  We will design the datapath of a processor that includes a subset of the MIPS instruction.

The Processor: Datapath & Control. Implementing Instructions Simplified instruction set memory-reference instructions: lw, sw arithmetic-logical instructions:

Chapter 1 Basic Structure of Computers. Chapter Outline computer types, structure, and operation instructions and programs numbers, arithmetic operations,

1 Computer Organization Today: First Hour: Computer Organization –Section 11.3 of Katz’s Textbook –In-class Activity #1 Second Hour: Test Review.

1 Instruction memory is used to store a program Processor gets one instruction at a time It stores it locally (like) I0, I1 registers PC points to next.

1 ALU ports can get input from any of the two registers ALU can perform one of the eight operations Shift unit can perform one of the four possible types.

Datapath and Control Unit Design

The System Bus. Conceptual CPU Block Diagram Datapath Regs Buses ALU Control Unit Bus Interface IR etc. PC etc. Control Signals Status Signals PSR System.

Elements of Datapath for the fetch and increment The first element we need: a memory unit to store the instructions of a program and supply instructions.

MIPS processor continued

Datapath and Control AddressInstruction Memory Write Data Reg Addr Register File ALU Data Memory Address Write Data Read Data PC Read Data Read Data.

RegDst 1: RegFile destination No. for the WR Reg. comes from rd field. 0: RegFile destination No. for the WR Reg. comes from rt field.

1 To write any register, we need register address and a write signal A 3-bit write address is decoded if write signal is present One of the eight registers.

MIPS Processor.

1 Instructions are stored in a memory called instruction memory To execute each instruction, we get the instruction out of memory, store in a register.

Computer Architecture Lecture 6.  Our implementation of the MIPS is simplified memory-reference instructions: lw, sw arithmetic-logical instructions:

Access the Instruction from Memory

STUDY OF PIC MICROCONTROLLERS.. Design Flow C CODE Hex File Assembly Code Compiler Assembler Chip Programming.

REGISTER TRANSFER AND MICROOPERATIONS

Computing Science Computer Structure: Lesson 1: Processor Structure

Single Cycle CPU.

REGISTER TRANSFER AND MICROOPERATIONS

IT 251 Computer Organization and Architecture

Morgan Kaufmann Publishers The Processor

Prof. Sirer CS 316 Cornell University

Decode and Operand Read

Design of the Control Unit for Single-Cycle Instruction Execution

MIPS processor continued

CSCI206 - Computer Organization & Programming

Computer Organization and ASSEMBLY LANGUAGE

Design of the Control Unit for One-cycle Instruction Execution

CSCI206 - Computer Organization & Programming

A Multiple Clock Cycle Instruction Implementation

Instruction encoding We’ve already seen some important aspects of processor design. A datapath contains an ALU, registers and memory. Programmers and compilers.

The Processor Lecture 3.2: Building a Datapath with Control

CSC 220: Computer Organization

CDA4150 Lecture 4 1/17/2019.

Storing Control A L U We need a memory to store control

A register design with parallel load input

Tri-state buffer A circuit which allows an input to go to output when desired Otherwise it behaves as if “nothing” is connected to the wire An equivalent.

COSC 2021: Computer Organization Instructor: Dr. Amir Asif

Overview Last lecture Digital hardware systems Today

Prof. Sirer CS 316 Cornell University

Instruction encoding We’ve already seen some important aspects of processor design. A datapath contains an ALU, registers and memory. Programmers and compilers.

ARM7TDMI Block Diagram Barrel Shifter Booth Multiplie r Data Out Register. D[31:0] Control Lines Data In Register. B busA bus ALU bus PC A[31:0] A.L.U.

ARM7TDMI Block Diagram Barrel Shifter Booth Multiplie r Data Out Register. D[31:0] Control Lines Data In Register. B busA bus ALU bus PC A[31:0] A.L.U.

CPU has 6 special locations called registers

ECE 352 Digital System Fundamentals

The ARM Instruction Set

Computer Architecture Processor: Datapath

Control Unit for Multiple Cycle Implementation

MIPS processor continued

Basic components Instruction processing

Control sequence to add two registers

Control Unit for Multiple Cycle Implementation

The Processor: Datapath & Control.

Instruction execution and ALU

Computer Architecture Assembly Language

COMS 361 Computer Organization

Processor: Datapath and Control

Presentation transcript:

Enhancing Data Path M 4-bit Reg X A L U We can add a memory and a register file to data path as shown Data from ALU can be written in reg file, memory, and registers Data from reg file and mem unit can be selected for register input A L U 4-bit Reg M X LD1 M2 M1 LD2 OpCode enable Keyboard Mem Unit Mem Addr WM EM File Reg Addr WR ER

Addition for multiply M 4-bit X A L U For multiplication, we add a shift unit and and M-reg M-reg can be loaded with output of ALU and copied on bus Shift unit can shift operand one bit left or right with or without M-register contents Mem Unit Mem Addr WM EM Reg File Reg Addr WR ER A L U 4-bit M X LD1 M2 M1 LD2 OpCode Input enable M- LDM

Complete Block diagram Mem Unit Mem Addr WM EM Reg File Reg Addr WR ER A L U 4-bit M X LD1 M2 M1 LD2 OpCode Input enable M- LDM