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

What are the advantages of using xml over html, What are the advantages of ...

What are the advantages of using XML over HTML?  The root cause of the problem lies in HTML (Hyper Text Mark-up Language), the defacto standard for web publication. The main pr

State some of the uses append query, Some of the uses of append query are a...

Some of the uses of append query are as follows ? You will save time by appending data to an existing table rather than manual update. ? Appending files based on particular

Define the thread libraries, Q. Define the Thread libraries? The most d...

Q. Define the Thread libraries? The most distinctive representatives of shared memory programming models are thread libraries present in most of modern operating systems. Illus

DFD, Draw the Context level DFD for the Safe home Software.

Draw the Context level DFD for the Safe home Software.

What is precloud computing, What is precloud computing? Precloud comput...

What is precloud computing? Precloud computing is an email access was through a single computer, which also keeps all email messages. Example: Microsoft Outlook or Outlook Expr

Line of code of assembly language, In how many ways line of code of assembl...

In how many ways line of code of assembly language can be divided? A line of code of an assembly language program can be divided in three columns called as fields. The fields d

What is the difference between thread and process, What is the difference b...

What is the difference between thread and process?  Thread - is used to execute more than one program at a time. process - executes single program A thread is a path of e

How would you implement inheritance using vb.net/c#, How would you implemen...

How would you implement inheritance using VB.NET/C#? When we set out to execute a class using inheritance, we must first start with an existing class from which we will derive

Calculate grade of service in a particular excahange, In a particular excha...

In a particular exchange during busy hour 1200 calls were offered to a group of trunks, during this time 6 calls were lost. The average call duration being 3 minutes Calculate

Differentiate between raid 0 and raid 1, Problem 1 a) Give three reaso...

Problem 1 a) Give three reasons why connecting peripherals directly to the system bus are not a good practice. b) Name five categories in which the major functions on requ

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