Buses - computer architecture, Computer Engineering

Assignment Help:

Buses:

  • Execution of 1 instruction need the following 3 steps to be performed by the CPU:

I.  Fetch the contents of the memory location pointed at by the computer system. The contents of this location are interpreted as an instruction to be executed. Therefore, they are holed up in the instruction register (IR). Symbolically, it can be written as:

1438_Buses.png

2. supposing that the memory is byte addressable .it increment the contents of the PC by 4, that is 1155_Buses1.png

3.   Perform the actions mention by the instruction stored in the IR

  • But, in cases wherever an instruction take place more than 1 word, steps 1 and 2 might be repeated as several times as essential to fetch the complete instruction.
  • 2 first steps are typically referred to as the fetch phase.
  • Step 3 constitutes  in the execution phase

 

29_Buses2.png

Most of the operation in step 1 to 3 denoted earlier can be carried out by performing one or more of the following function

However, in cases where an instruction takes place more than 1 word, steps 1 and 2 might be

repeated as several times as essential to fetch the complete instruction.

  • 2 first steps are usually referred to as the fetch phase.
  • Step 3 constitutes in the execution phase

Fetch the contents of a specific memory location and load them into a CPU Register

  • Hold up a word of data from a CPU register into a particular given memory location.
  • Transfer a word of data from 1 CPU register to another or to ALU.
  • Perform logic or arithmetic operation, and store the outcome in a CPU register.

 


Related Discussions:- Buses - computer architecture

Overflow or underflow for floating point numbers, In floating point numbers...

In floating point numbers when so you say that an overflow or underflow has occurred? Ans: A) In single precision numbers when an exponent is less than +127 then we say that

What do you mean by shared memory, Q. What do you mean by Shared Memory? ...

Q. What do you mean by Shared Memory? In shared memory scheme more focus is on controlling parallelism instead of data parallelism. In this model numerous processes run indepen

Principle of locality, Principle of locality: Temporal  base locali...

Principle of locality: Temporal  base locality (locality in time):- If an item is referenced then it will tend to be referenced again soon. Spatial locality (local

Two - bit correlating predictor, The history file, history.txt, is the bran...

The history file, history.txt, is the branch history of a run of the gcc compiler (the first field is the address of the branch instruction, the second field is the target branch a

Interconnection network, Interconnection Network Introduction Th...

Interconnection Network Introduction This unit discusses the types and properties of interconnection networks.  In multiprocessor systems, there are multiple I/O modules

Paging supervisor - computer architecture, Paging supervisor: This par...

Paging supervisor: This part of the operating system built and manages the page tables. If the  due to dynamic address translation hardware a page fault occurs exception then

Web services method, Why cant datareader be returned from a Web Services Me...

Why cant datareader be returned from a Web Services Method? Ans) Because datareader is not serializable.

The types of parameters in the function modules, What are the types of para...

What are the types of parameters in the function modules? In general, function module can have four types of parameters: EXPORTING : for passing data to the called function

Appropriate problems for ann learning, Appropriate Problems for ANN learnin...

Appropriate Problems for ANN learning: Conversely as we did for decision trees there it's important to know where ANNs are the right representation scheme for such job. Howeve

Determine the uses of programming language interface, Determine the uses of...

Determine the uses of Programming Language Interface PLI  is  used  for  implementing  system  calls  that would  have  been  hard  to  do  otherwise  (or impossible) using Ve

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