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

Which way do twin twist props on a boat rotate, Q. Which way do twin twist ...

Q. Which way do twin twist props on a boat rotate when propelling the boat forward? Answer:- In opposite direction however they are designed to propel the boat forward eve

Explain how server form post-back works, Briefly explain how server form po...

Briefly explain how server form post-back works?  Post Back: The process in which a Web page sends data back to the similar page on the server. View State: View State is the m

Using the editor or debugger, Write a script that will read from a file x a...

Write a script that will read from a file x and y data points in the following format: x   0    y  1 x  1.3  y  2.2 x  2.2  y  6 x  3.4  y  7.4 The format of each line in the

Shape - elements of composition, Shape : A shape is any area that can b...

Shape : A shape is any area that can be perceived to have height and width. Shapes within an image can be created by the use of line, or by the edges created by variations in c

What is a customer-to-business transaction, What is a customer-to-business ...

What is a customer-to-business transaction? C2B (customer-to-business): The most significant activity into e-commerce isn’t selling. That is buying. Rather often which do

Perform binary addition, Q. Explain the following: a. BCD code b. Gra...

Q. Explain the following: a. BCD code b. Gray code c. Excess-3 code d. True complement method Q. Addition-Subtraction-Multiplication-Division: Perform Binary Addi

Define the terms- action semantics and argouml, Define the terms- Action Se...

Define the terms- Action Semantics and  ArgoUML Action Semantics : Action semantics is a group of firms that have responded to the OMG's RFP to define the action semantics fo

Disadvantages of mpi, Disadvantages of MPI  Performance is restric...

Disadvantages of MPI  Performance is restricted by communication network between the nodes It can be harder to debug Needs more programming changes to go from seri

Multiple assign statements targeting the same wire, What logic is inferred ...

What logic is inferred when there are multiple assign statements targeting the same wire? It's illegal to specify multiple assign statements to the same wire in a synthesizable

What is dhcp and how it works, Full form of is DHCP: Dynamic Host Control P...

Full form of is DHCP: Dynamic Host Control Protocol. It is mainly used to bound MAC Addresses of system. Especially for Wireless System.

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