Structural hazards - computer architecture, Computer Engineering

Assignment Help:

Structural hazards - computer architecture:

A structural hazard takes place when a part of the processor's hardware is required by 2 or more than two instructions at the same time. A structural hazard might take place, for example, if a program were to execute a branch instruction which is followed by a computation instruction. Because they are executed in parallel manner, and because branching is very slow (needing a comparison between program counter-related computation, and writing to registers), it is possible (depending on the architecture) that the both computation and the branch instruction will need the ALU (arithmetic logic unit) at the identical time.

When a machine is pipelined then overlapped execution of instructions needs pipelining of functional units and duplication of resources to permit all possible combinations of instructions in the pipeline.

If some particular combination of instructions can't be accommodated because of a resource conflict, the machine is denoting to have a structural hazard.

Common examples of structural hazards arise when Some functional unit is not completely pipelined. Then a sequence of instructions by using that un pipelined unit can't be proceed ahead at the rate of 1 per clock cycle

 Some resource has not been duplicated adequate to permit all combinations of instructions in the pipeline to execute.

 

 


Related Discussions:- Structural hazards - computer architecture

Example to show directory in doc, Q. Example to show directory in doc? ...

Q. Example to show directory in doc? Like a file name, the directory name may also have up to eight alpha-numeric characters. The directory name can also have an extension

Define about hyper-threading technology, Q. Define about Hyper-threading te...

Q. Define about Hyper-threading technology? Hyper-threading technology enables a single microprocessor to behave as two separate threaded processors to operating system and app

Differences between asp and asp .net, What are the differences between ASP ...

What are the differences between ASP and ASP .Net ?    1. ASP: Code is Interpreted ASP.NET: Code is Compiled 2. ASP: Business Logic and Presentation Logic are in a one

Explain about indirect addressing, Q. Explain about Indirect Addressing? ...

Q. Explain about Indirect Addressing? In this technique the operand field of instruction specifies the address of address of intended operand for example if instruction LOAD

Describe the uses of credit cards and smart cards, Credit cards and smart c...

Credit cards and smart cards Credit cards comprise a magnetic stripe on the back made up of iron-based particles in a plastic film. Stripe is split up into 3 tracks which a

The need of parallel computation, The Need Of Parallel Computation With...

The Need Of Parallel Computation With the advancement of computer science (CS), computational speed of the processors has also improved many a time. Moreover, there is certain

Assignment, Find the Regular Grammar for the following Regular Expression: ...

Find the Regular Grammar for the following Regular Expression: a(a+b)*(ab*+ba*)b.

What is the basic approach of page replacement, What is the basic approach ...

What is the basic approach of page replacement?  If no frame is free is available, find one that is not currently being used and free it. A frame can be freed by writing its co

Form an 8 bit adder using 2 four bit adder IC's 7483, How will you form an ...

How will you form an 8 bit adder using 2 four bit adder IC's 7483? Ans: 4 bit adder IC is IC 7483. This has two four bit data inputs and output carry, 4 bit data output carr

What is test requirements, Test requirements are definite in the Requiremen...

Test requirements are definite in the Requirement Hierarchy in TestManager. The requirements hierarchy is a graphical outline of requirements and nested child requirements. Req

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