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 radix base, Define Radix (or)Base. A number system of base or ra...

Define Radix (or)Base. A number system of base or radix is a system that uses different symbols for r digits. Numbers are shown by a string of digit symbols. To verify the quan

What is mmu, What is MMU? MMU is the Memory Management Unit. It is a sp...

What is MMU? MMU is the Memory Management Unit. It is a special memory control circuit used for executing the mapping of the virtual address space onto the physical memory.

Name the numerous household devices, Name the Numerous household devices ...

Name the Numerous household devices Numerous household devices now use microprocessors to control their different functions. The following is just a sample of common devices (d

Super ASCII string checker, In the Byteland country a string "s" is said to...

In the Byteland country a string "s" is said to super ascii string if and only if count of each charecter in the string is equal to its ascci value in the byteland country ascii co

Differences between one hot and binary encoding, What are differences betwe...

What are differences between one hot and binary encoding? Common classifications used to explain the state encoding of an FSM is Binary or highly encoded and one hot. A bina

State about the machine language programs, State about the machine language...

State about the machine language programs The computer can run only machine language programs, one needs to translate above programs to machine language programs. To translate

In how many ways the data can be passed to functions, Object Oriented Progr...

Object Oriented Programming 1. Describe that in how many ways the Data can be passed to functions? Explain with the help of one example. 2. Describe how you create class a

How is transaction processing system affected, How is Transaction Processin...

How is Transaction Processing System affect performance of e-commerce sites? Transaction Processing System influences performance of e-commerce sites: Transaction-Processing

Operating systems, Consider the state transition diagram of Figure 3.9b . S...

Consider the state transition diagram of Figure 3.9b . Suppose that it is time for the OS to dispatch a process and that there are processes in both the Ready state and the Ready/S

Scientific knowledge, Scientific knowledge: This is not to be confused...

Scientific knowledge: This is not to be confused with the applications of "AI" programs to other sciences, discussed later. Its subfields can be classified into a variety of t

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