How can arithmetic processor be associated to the CPU, Computer Engineering

Assignment Help:

Q. How can this arithmetic processor be associated to the CPU? 

Two mechanisms are used for connecting arithmetic processor to CPU.  

If an arithmetic processor is treated as one of the Input / Output or peripheral units then it's termed as a peripheral processor. CPU transmitsinstructions and data to peripheral processor that performs the needed operations on data and communicates the results back to CPU. A peripheral processor has various registers to communicate with the CPU. These registers can be addressed by CPU as I/O register addresses. Peripheral and CPU processors are generally quite independent and communicate with each other by exchange of information using data transfer instructions. Data transfer instructions should be specific instructions in CPU. This kind of connection is known as loosely coupled.

Instead if the arithmetic processor has a register and instruction set that can be considered an extension of CPU registers and instruction set then it is known as a tightly coupled processor. Here CPU reserves a special subset of code for arithmetic processor. In such a system the instructions meant for arithmetic processor are fetched by CPU and decoded mutually by CPU and arithmetic processor and finally executed by arithmetic processor. So these processors can be considered a logical extension of CPU. These kind of attached arithmetic processors are called as co-processors.  

The concept of co-processor existed in 8086 machine until Intel 486 machines where co-processor was separate. But Pentium at present doesn't have a separate co-processor. In the same way peripheral processors aren't found as arithmetic processors in general. Though many chips are used for specialized I/O architecture.


Related Discussions:- How can arithmetic processor be associated to the CPU

De morgan''s laws - artificial intelligence, De Morgan's Laws Continuin...

De Morgan's Laws Continuing with the relationship between  ∧  and  ∨ , we can also use De Morgan's Law to rearrange sentences involving negation in conjunction with these conne

How many flip-flops are required to construct mod 30 counter, How many flip...

How many flip-flops are required to construct mod 30 counter ? Ans. Mod - 30 counter +/- requires 5 Flip-Flop as 30 5 . Mod - N counter counts overall ' N ' number of state

Concept development of project, Concept Development Journal General In...

Concept Development Journal General Information: Once you have researched and gained some insight into the topic you must then begin developing your ideas and your conceptua

Give the decription of user case, Give the decription of user case A us...

Give the decription of user case A use case is a description of the set of the sequence of actions which a system performs to produce an observable result which is of a value t

What is the motivation for cell design, Question: a) Evary cell in a ce...

Question: a) Evary cell in a cellular network is assigned a band of frequencies. The allocated frequencies are divided into two types of channels. Indentify and describe each t

Definition of decision support system, Q. Definition of Decision support sy...

Q. Definition of Decision support system? Definition of DSS: A decision support system is a specific kind of information system which is an interactive system that supports in

Prepare a decision tree, A part of an aircraft engine can be given a test b...

A part of an aircraft engine can be given a test before installation.  The test has a 75% chance of revealing a defect if it is present, and the same chance of passing a sound part

Explain the functional units of a basic computer, Question 1 Explain th...

Question 1 Explain the functional units of a basic computer with a neat diagram 2 What do you mean by addressing modes? List the different types of addressing modes 3 Exp

What is a match code, What is a Match Code? Match code is a tool to hel...

What is a Match Code? Match code is a tool to help us to find for data records in the system. Match Codes are an proficient and user-friendly search aid where key of a record i

What is the purpose of cdata in an xml document, Question: (a) What is...

Question: (a) What is the purpose of CDATA in an XML document? Explain your answer using extract codes. (b) Consider the following definition for an address element:

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