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

What are the features of ado.net, What are the features of ADO.Net ?  A...

What are the features of ADO.Net ?  ADO.NET features: 1. Disconnected Data Architecture 2. Data cached in Datasets 3. Data transfer in XML format 4. Interaction wit

What are the important tools of a three-tier client server, What are the im...

What are the important tools of a three-tier client server? In a three-tier or multi-tier environment, there the client implements the presentation logic or the client. The bus

Explain program level of parallel processing, Program Level This is nor...

Program Level This is normally the liability of OS (operating system) that runs processes simultaneously. Different programs are generally independent of each other. So paralle

Design an or to and gates combinational network, Design an OR to AND gates ...

Design an OR to AND gates combinational network and NAND only n/w for the following Boolean expression: A'BC'D + ABC'D' + A'B'CD' + A'BCD'

Embedded, explain djnz instruction of intel 8051 microcontroler

explain djnz instruction of intel 8051 microcontroler

Catch output from child tasks, Q. Catch output from child tasks? ...

Q. Catch output from child tasks? int pvm_catchout( FILE *ff ) Catch output from child tasks. ff is file descriptor on which we write collected output. The defau

External communication interfaces, External interface is interface between ...

External interface is interface between I/O interface and peripheral devices. Interface can be characterised into 2 main categories: (a) parallel interface and (b) serial interface

Cn, What is the basic requirement for establishing VLANs?

What is the basic requirement for establishing VLANs?

Illustrate working of t flip-flop, Q. Illustrate working of T Flip-Flop? ...

Q. Illustrate working of T Flip-Flop? T (Toggle) flip-flop is attained from JK flip-flop by combining inputs J and K together. The implementation of T flip-flop is displayed in

Explain vector reduction instructions, Vector reduction Instructions Wh...

Vector reduction Instructions When operations on vector are being decreased to scalar items as a result then these are vector reduction instructions. These instructions are ref

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