Comparison between risc and cisc - computer architecture, Computer Engineering

Assignment Help:

Comparison between risc and cisc - computer architecture:

CISC 

Emphasis on hardware 

Includes multi-clock

complex instructions 

Memory-to-memory:

"LOAD" and "STORE"

incorporated in instructions

Small code sizes,

high cycles per second 

Transistors used for storing

complex instructions 

RISC 

Emphasis on software 

Single-clock,

reduced instruction only 

Register to register:

"LOAD" and "STORE"

are independent instructions

Low cycles per second,

large code sizes 

Spends more transistors

on memory registers 

Though, the RISC strategy also brings some very significant advantages. Because each instruction need only one clock cycle to execute, the whole program will execute in about the same amount of time as the multi-cycle "MULT" command. These RISC "reduced instructions" needed less transistors of hardware space than the multifaceted instructions, leaving more space for general purpose registers. Because all of the instructions execute in a uniform amount of time (for example: one clock), pipelining is possible.

Separating the "STORE" and "LOAD " instructions in fact reduce the amount of work that the computer have to perform. After the execution of CISC-style "MULT" command, the processor automatically clear the registers. If one of the operands required to be used for another computation, the processor has to re-load the data from the memory bank into a register. In RISC, the operand will leave in the register until another value is loaded in its place.

 

 


Related Discussions:- Comparison between risc and cisc - computer architecture

View the site files, To see a high-level representation of the structure of...

To see a high-level representation of the structure of a local site, you use Dreamweaver's Site Map view. You can also use site map to add new files to the site, to add, remove and

Id3 algorithm, ID3 algorithm: Further for the calculation for informat...

ID3 algorithm: Further for the calculation for information gain is the most difficult part of this algorithm. Hence ID3 performs a search whereby the search states are decisio

What is bus arbitration, What is bus arbitration? It is method by which...

What is bus arbitration? It is method by which the next device to become the bus master is selected and bus mastership is transferred to it. There are two ways for doing this:

Define the node of object oriented modeling, Define the node of object orie...

Define the node of object oriented modeling A node is a physical element which exists at runtime and represents a computational resource usually having a large memory and often

Can link and association applied interchangeably, No, You cannot apply the ...

No, You cannot apply the link and Association interchangeably. Since link is used show the relationship among the two objects. But Association is used signify the relationship

Explain derived equations and models, Each student will be assigned a binar...

Each student will be assigned a binary system. The experimental references and the conditions are indicated in the table below. The student should make use of software available on

Explain cell spacing and cell padding, Q. Explain Cell Spacing and Cell Pad...

Q. Explain Cell Spacing and Cell Padding? Couple of attributes known as CELLSPACING and CELLPADDING. Both are part of tag. CELLPADDING is the amount of space between

Marked statement is implemented , Consider the ReadRear Java method (a)...

Consider the ReadRear Java method (a) Illustrate pictures that explain the data structure every time a checkpoint is reached for the problems of sizes one, two, three and four s

What are the features of prom, What are the features of PROM? They are ...

What are the features of PROM? They are programmed directly by the user. Faster Less expensive More Flexible

Which two properties are on every validation control, Which two properties ...

Which two properties are on every validation control?  Two properties are:- a) Control to validate b) Error Message.

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