Explain about control memory organization, Computer Engineering

Assignment Help:

Q. Explain about Control Memory Organization?

One of the simplest ways to organize control memory is to organize micro-instructions for different sub cycles of machine instruction in memory. The Figure below demonstrates such an organisation.

453_Explain about Control Memory Organization.png

Figure: Control Memory Organisation

Let us give an illustration of control memory organization. Let's take a machine instruction: Branch on zero. This instruction causes a branch to a specified main memory address if result of the last ALU operation is zero which means zero flag is set. Pseudocode of micro-program for this instruction would be;

                         Test "zero flag" If SET branch to label ZERO

                         Unconditional branch to label NON-ZERO 

ZERO:  (Microcode that causes replacement of program counter with address offered in instruction)

    Branch to interrupt or fetch cycle.

NON -ZERO:  (Microcode that can set flags if desired indicating branch hasn't taken place).

    Branch to interrupt or fetch cycle. (For Next- Instruction Cycle)


Related Discussions:- Explain about control memory organization

Works flowing related technologies influence e-business, How the works do f...

How the works do flowing related technologies influence e-business? Work Flow related Technologies influence e-business: Microsoft CRM automates internal business process

Flow-between matrix layout problem, Solve the problem in page 346 of the pa...

Solve the problem in page 346 of the paper on cell formation by Boctor using the MIP method.  Use 4 cells and no more than 3 machines per cell. Solve the problem using the MIP m

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

Relation ship, what is relationship among objects in software engineering??...

what is relationship among objects in software engineering??

Give the syntax switch statement, Give the syntax  switch statements C...

Give the syntax  switch statements Consider the following example. This is a function which converts an integer into a vague description. It is useful where we are only concer

Develop system flow charts - nasa near earth object, Background Information...

Background Information The National Aeronautics and Space Administration (NASA) is the agency within the United States Government responsible for US space exploration. Within th

What is cartridge drive, Q. What is Cartridge Drive? Cartridge Drive: ...

Q. What is Cartridge Drive? Cartridge Drive: A cartridge is a protective covering or case which is used to hold a magnetic tape, disk, a printer ribbon or toner. Contents are

Invariant of the class, What are the conditions that have to be met for a c...

What are the conditions that have to be met for a condition to be an invariant of the class? Ans) ? The condition should hold at the end of each constructor. ? The conditi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd