Why do we need registers, Computer Engineering

Assignment Help:

Why do we need Registers?

If tcpu is cycle time of CPU which is the time taken by CPU to execute a well-defined micro-operation employing registers and tmem is memory cycle time which is the speed at which memory can be accessed by CPU then (tcpu/tmem) is in the range of 2 to 10 i.e. CPU is 2 - 10 times faster than memory. So CPU registersare the fastest temporary storage areas. So the instructions whose operands are stored in fast CPU registers can be executed fast in comparison to instructions whose operands are in main memory of a computer. Every instruction should designate the registers it will address. So a machine needs a large number of registers.

1440_Why do we need Registers.png

Figure: CPU with general register organisation


Related Discussions:- Why do we need registers

Explain wait for graph-resource request and allocation graph, Explain Wait ...

Explain Wait for graph (WFG) with Resource request and allocation graph (RRAG). WFG with RRAG: A graph G = (V,E) is termed as bipartite if V can be decomposed in two

Explain switching system of a finite state machine model, Show how finite s...

Show how finite state machine model helps in designing a switching system and give a typical example. Switching system fundamentally belongs to the class of finite state machi

Computer arcticture, what is the main goal of parallel processing

what is the main goal of parallel processing

Explaintask and parallel task, Task   A task is logically discrete ...

Task   A task is logically discrete section of computational work. A task is normally a program or else set of instructions which are executed by a processor. Parallel

Decision trees - artificial intelligence, Decision Trees - Artificial intel...

Decision Trees - Artificial intelligence: Suppose you just ever do four things at the weekend: go shopping, watch a film, play tennis or just stay inside.  What you do depends

What is clearquest, Rational ClearQuest is a change-request management tool...

Rational ClearQuest is a change-request management tool that tracks and handles defects and change requests all through the development process. With ClearQuest, you can manage eac

Android projects, how should I do connectivity with google play for my andr...

how should I do connectivity with google play for my android GSM based project

What is a snooping cache, DNS cache snooping is not a term the author just ...

DNS cache snooping is not a term the author just made up, it is called and discussed by some notable DNS execution developers, and a few interested DNS administrators have prob

How to work in dreamweaver?, HOW TO WORK IN DREAMWEAVER? How and Where ...

HOW TO WORK IN DREAMWEAVER? How and Where to open Dreamweaver? Step 1: Click on Start Step 2: Select Program Step 3: Select Macromedia Dreamweaver Step 4: Click on

What are the concerns for growth of e-commerce in india, What are the conce...

What are the concerns for growth of e-commerce in India? Government as Facilitator for the growth of e-commerce has taken following steps: a. Promotion of competitive dataco

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