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

Post interrupts - computer architecture, Post interrupts - computer archite...

Post interrupts - computer architecture: Post interrupts Exact interrupts examine interrupt bit on entering WB Longer latency Handle immediately

What is digitizers, What is Digitizers A common device for drawing, pai...

What is Digitizers A common device for drawing, painting, or interactively selecting coordinate positions on an object is a digitizer. These devices can be used to input coordi

Lifo under perpetual inventory procedure, Q. LIFO under perpetual inventory...

Q. LIFO under perpetual inventory procedure? LIFO under perpetual inventory procedure observes Exhibit to see the LIFO method using perpetual inventory procedure. In this proce

Develop a plan to apply theory of constraints, 1. The Goal: Do you think th...

1. The Goal: Do you think that this is an operational methodology or a philosophy? Please explain. 2. How to apply Constraint Management to a Production Facility? How about to a

Temporary location, Compare zero-, one, two-, and three- address machines b...

Compare zero-, one, two-, and three- address machines by writing programs to compute                         X = (A + B x C)/(D - E x F) for every of the four machines.  Do n

What is indexing, What is indexing? Specific fields shown on each scann...

What is indexing? Specific fields shown on each scanned document are provided to our organization to make the systematic arrangement of your records. This process is designed t

Fifo discipline, You have been retained to examine how many check-in agents...

You have been retained to examine how many check-in agents should be used at a check-in counter for a big hotel. During normal business hours, customers arrive at a rate of about 2

Explain about merge sort circuit, Q. Explain about Merge sort circuit? ...

Q. Explain about Merge sort circuit? First split the given sequence of n numbers in two parts every part comprising of n/2 numbers. Afterwards recursively divide the sequence i

Compare the memory devices ram and rom, Compare the memory devices RAM and ...

Compare the memory devices RAM and ROM. Ans. Comparison of Semi-conductor Memories RAM ands ROM The advantages of ROM are: 1. This is cheaper than RAM. 2. This is non-volatil

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