Explain about variable-length of instructions, Computer Engineering

Assignment Help:

Q. Explain about Variable-Length of Instructions?

With the better understanding of computer instruction sets designers developed the idea of having a range of instruction formats of different length. What could be benefits of such a set? The benefits of this scheme are:

  • Large number of operations can be offeredthat have different lengths of instructions.
  • Flexibility in addressing scheme can be offered compactly andefficiently.

But the fundamentalshortcoming of such a scheme is to have a complex CPU.

A significant feature about these variables length instructions is: The CPU is not aware about length of next instruction that is to be fetched. This problem can be controlled if every instruction fetch is made equal to size of the longest instruction. So sometimes in a single fetch multiple instructions can be fetched.


Related Discussions:- Explain about variable-length of instructions

The average height or weight, A script kept information on potential subjec...

A script kept information on potential subjects for an experiment in a vector of structures known as "subjects".  The following show an example of what the contents may be: >> subj

Define edge triggered d flip flop, Define Edge Triggered D flip-flop? D...

Define Edge Triggered D flip-flop? D latch has only two inputs C(control) and D(data). The operation of a D flip-flop is a lot simpler and it has only one input addition to the

Explains the various levels of parallel processing, Levels of parallel proc...

Levels of parallel processing We could have parallel processing at four levels. i)  Instruction Level: Most processors have numerous execution units and can execute numero

Techniques are used to increase the clock rate r, What techniques are used ...

What techniques are used to increase the clock rate R? Ans: The 2 techniques used to increase the clock rate R are: 1. We can reduce the amount of processing done in one basi

Why a function should have at least one input, Why a function should have a...

Why a function should have at least one input? There is no strong reason for this in verilog. I think this restriction isn't removed fin SystemVerilog. Some requirements where

Find the responses when a computer broadcast an arp reqqest, How many respo...

How many responses does a computer expect to receive when it broadcast an ARP request? Why? An ARP (Address Resolution Protocol) request message is put in a hardware frame and

Characteristics of storage - computer architecture, Characteristics of comp...

Characteristics of computer storage: Storage technologies at all of levels of the storage hierarchy may be distinguished by evaluating particular core characteristics and alon

How will you prepare problem statement, How will you prepare problem statem...

How will you prepare problem statement? Problem statement should state what is to be completed and not how it is to be executed. It should be a statement of requirements not a

Numbers square, Your professor wants you to fill a two-dimensional N by N m...

Your professor wants you to fill a two-dimensional N by N matrix with some numbers by following a specific pattern. According to his explanation as in the figure below, you have to

Differentiate between static and dynamic memory, Differentiate between stat...

Differentiate between static and dynamic memory? The static RAM is simpler to use and has shorter read and write cycles. One of the main applications of static RAM is in execut

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