Execution of a full instruction - computer architecture, Computer Engineering

Assignment Help:

Execution of a full Instruction:

Regard as the instruction:

Add (R3), R1

Executing this particular instruction needed the below described actions:

a) Fetch the instruction

b) Fetch the primary operand (the contents of the memory location pointed to by R3)

c) Perform the addition operation

d) Load the result into R1register

Control Sequence for instruction Add (R3), R1:

PCout, MARin, Read, Select4, Add, Zin
Zout, PCin, Yin, Wait for the MFC
MDRout, IRin
R3out, MARin, Read
R1out, Yin, Wait for MFC
MDRout, Select Y, Add, Zin
Zout, R1in, End

Branch Instructions:

PCout, MARin, Read, Select4, Add, Zin
Zout, PCin, Yin, Wait for the MFC (WFMC)
MDRout, Irin
offset_field_of_IRout, Add, Zin
Zout, PCin, End

Related Discussions:- Execution of a full instruction - computer architecture

Explain pointers, Explain pointers We can have a pointer pointing to a ...

Explain pointers We can have a pointer pointing to a structure just the same way a pointer pointing to an int, such pointers are called as structure pointers

Write a program to event advertised, A museum has a collection of old poste...

A museum has a collection of old posters advertising events of various kinds (theatre, sport, fairs, lectures etc.). It wishes to keep a record of these, containing, for each poste

Describe the operation of parallel in parallel out, Describe the operation ...

Describe the operation of parallel in parallel out (PIPO) shift register. Ans: Parallel In Parallel Out: By the name suggests, in parallel in parallel out that is a

How to load dos from hard disk, Q. How to Load DOS from Hard Disk? To L...

Q. How to Load DOS from Hard Disk? To Load DOS from the Hard Disk of your computer, follow these steps: 1. Turn on the power ON/OFF switch of the CPU unit of your PC the pow

Area subdivision method, what is area subdivision and working

what is area subdivision and working

Explain post office protocol, Explain POP (Post Office Protocol). The P...

Explain POP (Post Office Protocol). The Post Office Protocol gives remote access to an electronic mail box. The protocol permits a user's mailbox to reside on a computer which

What are set up time & hold time constraints, What do they signify Which on...

What do they signify Which one is critical for calculating maximum clock frequency of a circuit? Ans) Set up time constraint implies how late the input signal can arrive befor

C programming, write a program to find the area under the curve y=f(x) betw...

write a program to find the area under the curve y=f(x) between x=a and x=b,integrate y=f(x) between the limits a and b

Name a different return types of a controller action method, The following...

The following are just a few return types of a controller action process. In common an action process can return an instance of an any class that derives from Action Result class.

Write a program for comparing two strings, Q. Write a program for comparing...

Q. Write a program for comparing two strings? Let's write a program for comparing two strings. Determine the following piece of code that has been written in C to compare two s

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages