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 cache memory, What is cache memory? It is a small, fast memory ...

What is cache memory? It is a small, fast memory that is inserted among large, slower main memory and the processor. It decreases the memory access time

What are the server specific middle wares, What are the server specific mid...

What are the server specific middle wares? Server specific middle wares. Their role in e-commerce. Additional features needed by e-commerce server. Middleware is the term of

Selecting integerated learning experiences, Q. Selecting integerated learni...

Q. Selecting integerated learning experiences? It is important that we select appropriate experiences for children, more so those that are from the child's world and emerge fro

What is structural hazard, What is structural hazard? Structural hazard...

What is structural hazard? Structural hazard is the situation when two instructions needs the use of a given hardware resource at the similar time. The most common case in whic

Explain the categories of design patterns, Question: (a) Explain the th...

Question: (a) Explain the three categories of design patterns. Give two examples from each category. (b) When describing a pattern what is the purpose of "The Intent", an

Define the term package- object oriented modeling, Define the term package-...

Define the term package- object oriented modeling A package is a common purpose mechanism for organising elements into groups. Package can also contain other packages. The no

Function name or connective symbol, Function name or connective symbol: ...

Function name or connective symbol: Whether if we write op(x) to signify the symbol of the compound operator then predicate name and function name or connective symbol are the

Which is the best tool for monitoring weblogic server(wls8), WLS8 handles J...

WLS8 handles JMX but it uses weblogic execution of JMX server. It does not supports generalise sun javax API which can be used with any JVM. There are some patches available which

What is the accessibility testing, Accessibility testing for web sites is a...

Accessibility testing for web sites is a service that can give much more than the standard point-by-point testing methods of most automated services.

Explain throughput performance and issues in pipelining, Throughput Thr...

Throughput Throughput of a pipeline may be defined as number of results which have been achieved per unit time. It can be referred as: T = n / [m + (n-1)]. c = E / c Th

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