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

Face detection, i want the matlab code for the following events 1. face det...

i want the matlab code for the following events 1. face detection 2. video to frame conversion 3.video shot boundary detection

Write down the basic performance equation, Write down the basic performance...

Write down the basic performance equation? T=N*S/R T=processor time N=no.of instructions S=no of steps R=clock rate

Illustration of a memory organization, Q. Illustration of a memory organiza...

Q. Illustration of a memory organization? Let's consider an illustration of a memory organization as displayed in Figure below in that main memory can store 32K words of 12 b

What is focussed ion beam fix, What is Focussed Ion Beam Fix? A FIB Fix...

What is Focussed Ion Beam Fix? A FIB Fix (Focussed Ion Beam) Fix is simply performed onto a terminated chip. FIB is a somewhat exotic process where a particle beam is capable t

Describe distributed object model, Question 1 Give a brief explanation on m...

Question 1 Give a brief explanation on message oriented middleware Question 2 Describe Distributed object model Question 3 Explain File systems in a distributed computing Env

Explain region, What is a Region? A Region is a continuous area of a p...

What is a Region? A Region is a continuous area of a process's address space (like text, data and stack). The kernel in a "Region Table" that is local to the process mainta

Replacement and substitution, Replacement and substitution: However, e...

Replacement and substitution: However, equivalences allow us to change one sentence with another without affecting the meaning, it means we know already that replacing one sid

Zero address instruction format, Zero address instruction format is used fo...

Zero address instruction format is used for  (A) RISC architecture.      (B) CISC architecture.  (C) Von-Neuman architecture.   (D) Stack-organized architecture.

What is shared memory programming, Q. What is Shared Memory Programming? ...

Q. What is Shared Memory Programming? We know all processors share a common memory in shared memory model. Every processor can be assigned a separate portion of program stored

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