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 will you fine-tune a class, How will you fine-tune a class? It is u...

How will you fine-tune a class? It is useful to fine-tune classes before writing code in order to examine development or to improve performance. The purpose of execution is to

Define a structure, Define a structure. A structure having an ordered g...

Define a structure. A structure having an ordered group of data objects. Unlike the elements of an array, the data objects within a structure can have varied data types. Every

Call a screen as dialog box, The Syntex used to call a screen as dialog box...

The Syntex used to call a screen as dialog box (pop up)is CALL SCREEN STARTING AT ENDING AT

Define the refresh rates and frame rate, Q. Define the Refresh Rates and fr...

Q. Define the Refresh Rates and frame rate? A special circuit known as the Video Controller scans video memory one row at a time and reads data value at each address sending th

Determine the output of an even parity generator, When the set of input dat...

When the set of input data to an even parity generator is 0111, the output will be ? Ans. Into even parity generator if number of one is odd then output will be 0.

Convert the binary number to gray code, Convert the binary number 10110 to ...

Convert the binary number 10110 to Gray code ? Ans. For changing binary number 10110 in its equivalent Gray code the rules are as, the left most bit that is MSB in Gray code is 1

Hard-disk acquisition, Problem (a) Forensic methodology consists of t...

Problem (a) Forensic methodology consists of three phases. Briefly explian these three phases. (b) Sometimes it's best not to perform hard-disk acquisition. Provide two

Different elements of a collaboration diagram, ? Object: The interaction am...

? Object: The interaction among objects takes place in a system. An object is depicted by a rectangle with the name of the object, preceded by a colon and underline. ? Relation

Example on cyclic distribution of data, Q. Example on Cyclic Distribution o...

Q. Example on Cyclic Distribution of data? !HPF$ PROCESSORS P1(4) !HPF$ TEMPLATE T1(18) !HPF$ DISTRIBUTE T1(CYCLIC) ONTO P1 The result of these instructions is display

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