Very long instruction word architecture, Computer Engineering

Assignment Help:

Superscalar architecture was designed to increase the speed of the scalar processor. But it has been realized it's not easy to apply. Subsequent are a number of problems faced in the superscalar architecture:

• It is needed that extra hardware should be given for hardware parallelism like decoder and arithmetic units, instruction registers etc.

• Scheduling of instructions dynamically to diminish the pipeline delays and to keep all processing units busy is very hard.

Another option to increase speed of processor is to use a series of instructions having no dependency and might need various resources so avoiding resource conflicts. The concept is to unite these independent instructions in a compact long word integrating many operations to be executed concurrently. So this architecture is known as "very long instruction word (VLIW) architecture". Actually long instruction expressions carry the opcode of various instructions that are dispatched to several functional units of the processor. In this manner all the operations to be implemented concurrently by the functional units are synchronized in a VLIW instruction. The size of VLIW instruction word may be in hundreds of bits. VLIW instructions should be formed by compacting small instruction words of conventional program. The job of compaction in VLIW is completed by compiler. The processor should have the enough resources to implement all the operations in VLIW word concurrently.


Related Discussions:- Very long instruction word architecture

What is a screen group, What is a screen group? How it is useful? Scre...

What is a screen group? How it is useful? Screen group is a field in the Screen Attributes of a screen.  Here we can explain a string of up to four characters which is availa

Avoiding overfitting - decision tree learning , Avoiding Overfitting : ...

Avoiding Overfitting : However remember there that in the previous lecture, there is over fitting that common problem in machine learning. Furthermore details to decision tree

Assignment, what is an interface and perpheral device

what is an interface and perpheral device

How atoms differ from the arrangement of atoms in a liquid, Q. How does the...

Q. How does the preparation of atoms in mainly solids differ from the arrangement of atoms in a liquid? Answer:- The arrangement of atoms in solids are diverse from those

Explain parallelism based on grain size in detail, Parallelism based on Gra...

Parallelism based on Grain size Grain size : Grain size/ Granularity are a measure that defines how much computation is involved in a process. Grain size is concluded by count

Telecommunication, name the switching schemes used in a digital exchange. h...

name the switching schemes used in a digital exchange. ho call processing takes place?

Simplify following using k-map, Q. Explain XNOR gate with three input varia...

Q. Explain XNOR gate with three input variable and draw necessary circuits. Q. Simplify FOLLOWING Using K-Map 1. m0 + m1 + m6 + m7 + m12 + m13 + m8 + m9 2. m0 + m2 + m4 +

Write the truth table for a clocked J-K flip-flop, Write the truth table fo...

Write the truth table for a clocked J-K flip-flop that is triggered by the positive-going edge of the clock signal. Ans. Logic diagram of JK flip flop Truth T

Password cracking, Hashed strings can often be deciphered by 'brute forcing...

Hashed strings can often be deciphered by 'brute forcing'. Bad news, eh? Yes, and particularly if your encrypted passwords/usernames are floating around in an unprotected file some

Difference between the fork -join and begin-end, Difference between the for...

Difference between the fork -join and begin-end. The fork - join keywords: Groups several statements together.Cause statements to be evaluated in parallel (all at the same

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