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 dataflow computing, DATAFLOW COMPUTING A substitute to the Von ...

DATAFLOW COMPUTING A substitute to the Von Neumann model of calculation is dataflow computation model. In the dataflow model, control is tied to flow of data. Order of instruct

Trace the pseudo-code, Consider the following pseudo-code segment. 1.  i...

Consider the following pseudo-code segment. 1.  input y {y is a three-digit hexadecimal number} 2.  d ← 0 3. for i = 1 to 3      3.1. char ← i th character from y readin

Advantages & disadvantages of wired-and connection TTL gates, What are adva...

What are advantages and disadvantages of TTL gates design with Wired-AND connection ? Ans. Advantages and disadvantages In this IC added logic is performed with

C++, a program to find the area under the curve y = f(x) between x = a and ...

a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can be foun

Drawback of indirect addressing, Q. Drawback of indirect addressing? • ...

Q. Drawback of indirect addressing? • Drawback of this scheme is that it needs two memory references to fetch actual operand. First memory reference is to fetch the actual addr

Interpolation algorithm, Design two matlab algorithms for enlarging the 256...

Design two matlab algorithms for enlarging the 256x256 images into 512x512 images by using bilinear and bicubic interpolations   a)  Evaluate the interpolated images with the

Displays a format of floating-point number, Q. Displays a format of floatin...

Q. Displays a format of floating-point number? A floating binary number +1010.001 in a 16-bit register is able to be represented in normalised form (presuming 6 bits for expone

State the data flow diagramming conpects, State the data flow diagramming c...

State the data flow diagramming conpects The approach to data flow diagramming is as follows: Create a data flow diagram for each of major outputs of system Work ba

Learning weights in perceptrons, Learning Weights in Perceptrons - Artifici...

Learning Weights in Perceptrons - Artificial neural network In detail we will look at the learning method for weights in multi-layer networks next chapter. The following descri

Canonical genetic algorithm - artificial intelligence, Canonical Genetic Al...

Canonical Genetic Algorithm: In such a scenario with all search techniques there one of the first questions to ask along with GAs is how to define a search space that is actua

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