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

Why we need web browser, Q. why we need Web Browser? A Web browser is s...

Q. why we need Web Browser? A Web browser is software program which allows you to easily display Web pages and navigate the Web. The first graphical browser, Mosaic, was develo

Data stream and instruction stream-flynn’s classification, Data Stream an...

Data Stream and Instruction Stream The term 'stream' refers to an order or flow of either data operated or instructions on by the computer. In the complete chain of instructi

Marked statement is implemented , Consider the ReadRear Java method (a)...

Consider the ReadRear Java method (a) Illustrate pictures that explain the data structure every time a checkpoint is reached for the problems of sizes one, two, three and four s

Explain about param super computer, Q. Explain about PARAM Super computer? ...

Q. Explain about PARAM Super computer? PARAM is a high-performance, industry standard and scalable computer. It has developed from concepts of distributes scalable computers ma

What is repository info. systems, What is Repository Info. Systems? It ...

What is Repository Info. Systems? It is a tool with which you can create data stored in the ABAP/4 Dictionary available

Task and parallel task, Task A logically discrete sector of a computati...

Task A logically discrete sector of a computational effort. A task is naturally a program or program-like set of instructions that is implemented by a processor.  Parallel

Explain the modularity of object oriented analysis, Explain the Modularity ...

Explain the Modularity of Object oriented analysis Modularity is closely attached to encapsulation; you may think of it as a way of mapping encapsulated abstractions into phys

What is frontpage, Front page is a software used to make a webpage.

Front page is a software used to make a webpage.

Define the time required by sector to reach below read/write, is the time r...

is the time required by a sector to reach below read/write head. Latency Time is the time needed by a sector to reach below read/write head.

How does the internet work, Every computer connected to Internet has a uniq...

Every computer connected to Internet has a unique address. Let's just say your IP address is 1.2.3.4 and you want to send a message to computer with IP address 5.6.7.8. Message you

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