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

Define the Load address for the first word of the program, Load address for...

Load address for the first word of the program is called? Ans. load address origin is known as load address for the first word of the program.

What happens to logic after synthesis, What happens to logic after synthesi...

What happens to logic after synthesis, which is driving an unconnected output port that is left open (, that is, noconnect) during its module instantiation? An unconnected out

Explain virtual packets, Explain Virtual Packets. The router can't tran...

Explain Virtual Packets. The router can't transfer a copy of a frame from one kind of network to other since the frame formats be different. More significantly, the router cann

Show layout 84-key keyboards, Q. Show layout 84-key Keyboards? PC 83-ke...

Q. Show layout 84-key Keyboards? PC 83-key was the earliest keyboard provided by IBM with its first Personal Computers (PC). This had 83 keys. Afterwards IBM added one more key

Describe about the desk top publishing, Desk Top Publishing (DTP) As wo...

Desk Top Publishing (DTP) As word processors develop increasingly more sophisticated features, differences with desk top publishing (DTP) packages becomes more and more blurred

Explain web service - .net component, Can you give an example of when it wo...

Can you give an example of when it would be appropriate to use a web service as opposed to a non-serviced .NET component? Services which help in stock trading by giving analysi

Explain about indexed addressing scheme, In this technique, operand field o...

In this technique, operand field of instruction includes an address and an index register thatcomprises an offset. This addressing scheme is normally used to address the consecutiv

Explain the input stage of an ADC, Explain the Input Stage of an ADC. ...

Explain the Input Stage of an ADC. Ans. Input Stage- In ADC at the input stage, analog voltage can contain any value in a range although the digital output can contain

Explain about annotational notations, Explain about Annotational Notations ...

Explain about Annotational Notations These notations may be applied to describe remark and illuminate about any element in the model. They are considered as explanatory of U

Which is not a valid page replacement policy, Which is not a valid page rep...

Which is not a valid page replacement policy? Ans. RU policy (Recurrently used) is not a valid page replacement policy.

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