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

Example of calculate maximum access time & cost of switch, Calculate the ma...

Calculate the maximum access time that can be permitted for the data and control memories in a TSI switch with a single input and single output trunk multiplexing 2500 channels. Al

Background and foreground colors can be interchanged, Background and foregr...

Background and foreground colors can be interchanged using the command?? Format Inverse command.

What are the steps comprised in authentication, What are the steps comprise...

What are the steps comprised in authentication? Steps in Authentication: The control over the access of the resources within the repository is exercised in two steps tha

Applications of generic framework for e-commerce executed, How are applicat...

How are applications of generic framework for e-commerce executed? To execute applications, this is essential to have Supporting Information and Organizational Infrastructure a

State in brief about third generation electronic computers, Third Generatio...

Third Generation (1963-1972) The third generation introduced huge gains in computational power. Innovations in this time include use of integrated circuits or ICs (semiconducto

Functioning of registers, Functioning of registers: at any instance of time...

Functioning of registers: at any instance of time global registers and only one window of registers is visible and is addressable as if it were only set of registers. So for progra

Effectiveness - efficiency - safety and utility of site, Based on your unde...

Based on your understanding of Unit 2, compile a set of five usability and/or user experience goals which you think will be useful in evaluating the two sites when gathering the in

Why do we need dma, Why do we need DMA? DMA is used to transfer the blo...

Why do we need DMA? DMA is used to transfer the block of data directly among an external device and the main memory without the continuous intervention by the processor.

Perceptrons in artificial neural network, Perceptrons in artificial neural ...

Perceptrons in artificial neural network- Artificial intelligence: The weights in any ANN are always only real numbers and the learning problem boils down to selecting the best

What is mini computer, Q. What is Mini computer? The term minicomputer ...

Q. What is Mini computer? The term minicomputer introduced in 1960's when it was realized that numerous computing tasks don't need an expensive modern mainframe computers howev

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