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 do you mean by stack unwinding in c++, Stack unwinding in C++ is a pro...

Stack unwinding in C++ is a process during exception handling when the destructor is known for all local objects the place where the exception was thrown and where it is caught.

Logical representations in artificial intelligence, Logical Representations...

Logical Representations: If every human being spoke the same kind of language, there would be several less misunderstanding in the world. The problem with software engineering

Could tcp allow ip to checksum the data, Could TCP allow IP to checksum the...

Could TCP allow IP to checksum the data? TCP cannot permit IP to checksum data yet IP has its own checksum for its header. IP layer is fundamentally responsible for routing of

Classification of interrupts - computer architecture, Classification of int...

Classification of interrupts:   1. a) asynchronous   external components or hardware malfunction 1.b)synchronous   function of program state (for example over

Explain working of dotmatrix or inkjet printers, Q. Explain working of DotM...

Q. Explain working of DotMatrix or InkJet Printers? Three major issues consider the quality of characters generated by DotMatrix/InkJet Printers: - Number of dots in the matrix

#chemistry, Please explain the construction and working of calomel electrod...

Please explain the construction and working of calomel electrode..

Biometric systems for implementing client server network, Discuss password ...

Discuss password schemes and Biometric systems for implementing client server network security.          In cyberspace, buyers & sellers cannot see each other. Also in video con

Multiprogramming or multitasking, Multiprogramming or multitasking? An...

Multiprogramming or multitasking? Ans: The OS manages the concurrent execution of many application programs to make best possible use of computer resources. This pattern of si

Ds, explain about relations

explain about relations

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