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

What is the maximum number of fragments, What is the maximum number of frag...

What is the maximum number of fragments that can result from a single IP Datagram? Explain. To fragment a datagram for transmission across a network, a router utilizes the netw

Weight training calculations - artificial intelligence, Weight Training Cal...

Weight Training Calculations -Artificial intelligence: Because we have more weights in our network than in perceptrons, first we have to introduce the notation: wij to denote t

Where do you set automatic correlation options, Automatic correlation from ...

Automatic correlation from web point of sight can be set in recording options and correlation tab. Here we can enable correlation for the whole script and choose either issue onlin

State the term- use a define function, State the term- Use a define functio...

State the term- Use a define function This is almost exactly the same approach as #define and -D compiler arg that C programs use. In your  Verilog  code,  use  a  'define  to

What is compact disk recordable, Q. What is Compact Disk Recordable? To...

Q. What is Compact Disk Recordable? To accommodate applications in which just one or a small number of copies of a set data is required write-once read-many CD called as CD Rec

Explain the term- cycle based simulator, Explain the term- Cycle Based Simu...

Explain the term- Cycle Based Simulator This is a Digital Logic Simulation method which eliminates unnecessary calculations to achieve huge performance gains in verifying Bool

What is mask operation, What is MASK OPERATION The mask operation is si...

What is MASK OPERATION The mask operation is similar to selective-clear operation except which the bits of Aare cleared only where there are corresponding 0's in register B. th

What makes a circuit ''digital''?, All digital devices are made from circui...

All digital devices are made from circuits whichcan be switched between two possible states.These two states are represented by a voltagelevel at the output of the circuit e.g. 0V

Works flowing related technologies influence e-business, How the works do f...

How the works do flowing related technologies influence e-business? Work Flow related Technologies influence e-business: Microsoft CRM automates internal business process

Execution-modes of a multiprocessor, Q. Explain Execution-modes of a multip...

Q. Explain Execution-modes of a multiprocessor? Execution-modes of a multiprocessor: Several modes of multiprocessing comprise parallel execution of programs at (i) Fine Grain

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