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

Define the products of dynamic mode, Define the Products of Dynamic mode ...

Define the Products of Dynamic mode Dynamic model: A model of dynamic behaviour of user object.  It defines important states of user object, the way that actions depend on

Illustrate about fifth generation electronic computers, Fifth Generation (1...

Fifth Generation (1984-1990) The advancement of the next generation of computer systems is characterized majorly by the acceptance of parallel processing.  Until this time para

Define syntax of barrier directive, Q. Define syntax of barrier directive? ...

Q. Define syntax of barrier directive? Barrier Directive  The syntax of barrier directive is  #pragma omp barrier When a thread attains barrier it waits till all threa

Classified the vlsi technology, The VLSI technology is still developing. Mo...

The VLSI technology is still developing. More and more powerful microprocessors and more storage space now are being put in single chip. One question that we have still not conside

Sosail studies, whitch goods did the new england colonies exportto england ...

whitch goods did the new england colonies exportto england and what did they get in return

Explain asynchronous decade counter, Draw the circuit diagram of Asynchrono...

Draw the circuit diagram of Asynchronous decade counter and explain its working. Ans: To  design  a  circuit diagram of decade  asynchronous  counter  initially  we  dr

Determine the term- files, Determine the term- Files File maintenance i...

Determine the term- Files File maintenance is significant. Updating of files generally involves inserting, amending and deleting data. Example: A bank would amend data

What features are needed to implement top down parsing, The features are ne...

The features are needed to implement top down parsing are? Ans. Source string marker, Prediction making mechanism and also matching and backtracking mechanism features are need

Datatype functions for message passing, Q. Datatype Functions for Message P...

Q. Datatype Functions for Message Passing? Datatype: It denotes type of data in message. This field is essential in the sense that MPI supports heterogeneous computing and diff

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