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

Explain in brief about compact disks, Explain in brief about Compact disks ...

Explain in brief about Compact disks (CD) These are an optical storage media that have basically taken over from floppy disk. Software is now generally supplied on a CD (in for

What is managed bean or mbean, A managed bean - sometimes simply referred t...

A managed bean - sometimes simply referred to as an MBean - is a type of JavaBean, developed with dependency injection. Managed Beans are particularly used in the Java Management E

Define grid computing, GRID COMPUTING Grid Computing signifies applying...

GRID COMPUTING Grid Computing signifies applying resources of different computers in a network concurrently to a single problem for solving a scientific or technical problem wh

Explain about registers, Q. Explain about Registers? A register is a gr...

Q. Explain about Registers? A register is a group of flip-flops that store binary information and gates that controls when and how information is transferred to register. An n-

Computer network architecture, A protocol is a formal description of messag...

A protocol is a formal description of message formats and the rules two or more machines must follow to exchange those messages. Because TCP (transmission control protocol) and IP

What is the relation between response time and throughput, The Throughput g...

The Throughput graph represents the amount of data in bytes that the Vusers received from the server in a second. When we evaluate this with the transaction response time, we will

Program that will blink as led, Take the last two digits of your UTCID. Thi...

Take the last two digits of your UTCID. This is your duty cycle in percent. If your duty cycle is less than 10%, add 30 to your number. Create an assembly program that runs on t

Digital electronics, design a ciruit which can work as a 4-bit binary adder...

design a ciruit which can work as a 4-bit binary adder as well as subtractor

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