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 function modules, What are function modules? Function m...

What are function modules? Function modules are general-purpose library routines that are available system-wide.

What is deadlock in operating system, Explain Deadlock in operating system ...

Explain Deadlock in operating system ? Deadlock: all process in a set of processes is waiting for an event which only a process in the set can cause.

What specifies by environment variable in cgi script, The Environment varia...

The Environment variable SCRIPT_NAME in CGI script specifies? In CGI script gives the path of URL after server name.

Determine the define byte - assembler directives, Determine the Define Byte...

Determine the Define Byte - Assembler directives DB (Define Byte): DB directive defines a byte-type variable (i.e. a variable that occupies one byte of memory space). In a give

What are the uses of interrupts, What are the uses of interrupts?  ...

What are the uses of interrupts?  Recovery from errors Debugging Communication among programs Use of interrupts in operating system

Define access time for magnetic disk, Define access time for magnetic disk....

Define access time for magnetic disk. The sum of seek time and rotational delay is known as access time for disks. Normal 0 false false false EN-IN

Unix for multiprocessor system, The UNIX operating system for a multiproces...

The UNIX operating system for a multiprocessor system has a number of extra features as compared to normal UNIX operating system.  Let's first consider the design objectives of mul

Forall statement in fortran, Q. FORALL Statement in fortran? The FORALL...

Q. FORALL Statement in fortran? The FORALL statement permits for more common assignments to sections of an array. A FORALL statement has general form.   FORALL ( triplet, ..

Multiple layers of intranet security, Multiple Layers of Intranet Security ...

Multiple Layers of Intranet Security Security requirements vary from organisation to organisation. They also vary on the content that the organisations intend to place on their

Layout for the assumed penalty, Solve the following 8-department problem us...

Solve the following 8-department problem using the MIP method.  What is the resulting layout and flow-distance score?  Note that the aspect ratio of each department should be 2.

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