Describe different kinds of registers used for register arra, Basic Computer Science

Assignment Help:
Different kinds of registers are general between most microprocessor designs. These are:
Program Counter (PC)
This register is utilized to hold the memory address of the next instruction that has to executed in a program. This is to ensure the CPU knows at all times where it has reached, that is able to recommence following an execution at the correct point, and that the program is executed properly.
Instruction Register (IR)
This is used to hold the current instruction in the processor while it is being decoded and executed, in turn for the speed of the whole execution process to be reduced. This is because the time required to access the instruction register is much less than continual checking of the memory location itself.
Memory Address Register (MAR)
Used for storage of memory addresses, typically the addresses involved in the instructions held in the instruction register. The control unit then ensures this register when needing to know which memory addresses to check or gain data from.
Accumulator (A, or ACC)
The accumulator is used to store the result of operations performed by the ALU, as enclosed in the section on the ALU.

Memory Buffer Register (MBR)
When an instruction or data is obtained from the memory or elsewhere, it is first to be found in the memory buffer register. The next action to take is then determined and carried out, and the data is moved on to the preferred location.
Other general purpose registers
these registers have no specific reason, but are generally used for the fast storage of pieces of data that are required later in the program execution. In the model used here these are assigned the names A and B, with suffixes of L and U indicating the lower and upper parts of the register correspondingly.
Status flags/ Flag register
the flag register is particularly designed to contain all the appropriate 1-bit status flags, which are changed as a result of operations concerning the arithmetic and logic unit. Further information can be found in the section on the ALU.

Related Discussions:- Describe different kinds of registers used for register arra

Assignment 4, Briefly explain all the networking components and devices tha...

Briefly explain all the networking components and devices that are needed to set up a computer network. This is just a brief explanation of devices needed and their reason for usin

COMPUTER SYSTEM ARCHITECTURE, PLEASE HELP ME TO CONSTRUCT THE XOR GATE USIN...

PLEASE HELP ME TO CONSTRUCT THE XOR GATE USING ONLY NAND GATE

What is structure, Problem 1 Write a recursive function to find sum of ...

Problem 1 Write a recursive function to find sum of even numbers from 2 to 50 Writing function and explanation Problem 2 What is structure? Explain how structu

What is packet switching? explain, Question 1 What are the five subscriber...

Question 1 What are the five subscriber-related signaling functions performed by the operator? Question 2 Compare Microprogrammed control and Hard-wired control Que

The skill of Assembly Language, The skill of Assembly Language Programming ...

The skill of Assembly Language Programming (AoA), Randy Hyde''s acclaimed text on assembly language programming, is the most-frequently recommended book on 80x86 assembly language

Defining conditional operator, Problem 1 What is conditional operator? ...

Problem 1 What is conditional operator? Using conditional operator find a smallest number between two numbers Defining conditional operator Using it to find smallest n

Looping statement, Looping Statement:  The purpose of a loop structure is...

Looping Statement:  The purpose of a loop structure is to repeat certain tasks until some condition is satisfied. Several variations of a loop structure are available in each pro

Security threats on internet, Security threats on internet:  The Inter...

Security threats on internet:  The Internet has many advantages; however, it also opens up security threat. In this section we just want to highlight some of the threats that

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