Customer Service Chat
Get quote & make Payment
Describe different kinds of registers used for register arra, Basic Computer Science
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.
Posted Date: 5/3/2012 7:13:27 AM | Location : United States
Ask an Expert
Describe different kinds of registers used for register arra, Assignment Help, Ask Question on Describe different kinds of registers used for register arra, Get Answer, Expert's Help, Describe different kinds of registers used for register arra Discussions
Write discussion on Describe different kinds of registers used for register arra
Your posts are moderated
Write your message here..
Database, how does one create a database in mysql
how does one create a database in mysql
How to Open a FCB files?, Opening files 0FH function is used to open an F...
Opening files 0FH function is used to open an FCB file the 21H interruption. The element, the name and extension of the file must be initialized previous to opening it. The DX regi
Unix, Shell Scriptiong
Compare cisc with risc cpus, Question 1 Define the following terms ...
Question 1 Define the following terms 1) Pipelining 2) Super Pipelining 3) Dynamic Execution 4) Multiprocessing 5) Multimedia Extensions Question 2
DATA STRUCTURE, WHAT IS DATA STRUCTURE AND EXPLAIN ME.
WHAT IS DATA STRUCTURE AND EXPLAIN ME.
Automata, history of automata
history of automata
10, constant key use for in calculator
constant key use for in calculator
Computer, hitory and genration of computer
hitory and genration of computer
Comp 100, I have an account in my www.itlab.com and i have a test and it s...
I have an account in my www.itlab.com and i have a test and it should do tonight, so do you have any one to help me and do this test and it is about excel
Accounting Assignment Help
Economics Assignment Help
Finance Assignment Help
Statistics Assignment Help
Physics Assignment Help
Chemistry Assignment Help
Math Assignment Help
Biology Assignment Help
English Assignment Help
Management Assignment Help
Engineering Assignment Help
Programming Assignment Help
Computer Science Assignment Help
IT Courses and Help
Why Us ?
~24x7 hrs Support
~Quality of Work
~Time on Delivery
~Privacy of Work
Human Resource Management
Literature Review Writing Help
Follow Us |
T & C
Copyright by ExpertsMind IT Educational Pvt. Ltd.