Explain about instruction register and flags, Computer Engineering

Assignment Help:

Q. Explain about Instruction Register and Flags?

The Instruction Register: It comprises the operation code (opcode) and addressing mode bits of the instruction. It assists in determining the numerous cycles to be performed and hence determines related micro-operations that are required to be performed.

Flags: Flags are used by CU for determining the status of CPU and the results of a previous ALU operation. For illustration a zero flag if set conveys to control unit that for instruction ISZ (skip subsequent instruction if zero flag is set) the next instruction has to be skipped.


Related Discussions:- Explain about instruction register and flags

How to use data validation function in vba, Data validation is a significan...

Data validation is a significant concept in VBA. Application process and a custom dialog box can be used to accurate input errors. You can assign an application process to the fram

Constructor, what is meant by private copy constructor

what is meant by private copy constructor

Why is catch almost always a bad idea, Why is catch (Exception) almost alwa...

Why is catch (Exception) almost always a bad idea?  Well, if at that point you know that an error has happened, then why not write the proper code to handle that error instead

Project, how many pins does a floppy drive connector have

how many pins does a floppy drive connector have

Python implementation of a solver for the desert cro, Python implementation...

Python implementation of a solver for the desert crossing, Python Programming #Minimum 100 words accepted#

Limitations of execution of instructions, Q. Limitations of execution of in...

Q. Limitations of execution of instructions? 1. Size of memory shown in 16 words while instruction is capable of addressing 210 =1 K words of Memory. However why 210 since 10 b

#chemistry, Please explain the construction and working of calomel electrod...

Please explain the construction and working of calomel electrode..

Essential features of an algorithm, Necessary features of an algorithm: ...

Necessary features of an algorithm: 1.Input: The algorithm should take zero or more input. 2. Output: The algorithm should generate one or more outputs.  3. Definiteness:

Define wilkes control unit, Q. Define Wilkes Control Unit? Prof. M. V. ...

Q. Define Wilkes Control Unit? Prof. M. V. Wilkes of the Cambridge University Mathematical Laboratory invented the term microprogramming in 1951. He offered a systematic altern

Differentiate between compiler and interpreter, (i) Compiler and Interpret...

(i) Compiler and Interpreter: These are two types of language translators. A compiler changes the source program (user-written program) into an object code (machine language b

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