Explain the term instruction cycle, Computer Engineering

Assignment Help:

Instruction Cycle

The instruction cycle consists of a series of steps required for the execution of an Instruction in a program. A distinctive instruction in a program is composed of two sections: Operand and Opcode. The Operand portion indicates the data on which the particular operation is to be done. (See below figure). The Operand portion is splitted into two portions: addressing mode and Operands. The addressing mode indicates the method of determining the addresses of the real data on which operation is to be executed and the operand portion is used like an argument by the method in determining actual address.

 

1171_Instruction Cycle.png

The Control Unit (CU), a part of Central Processing Unit (CPU) of computer fetches instructions in the program, one by one. The fetched Instruction is after that decoded by decoder which is a entity of the CU and the processor implements the decoded instructions. The outcome of execution is stored in Memory Buffer Register (MBR) (also known as Memory Data Register) for the moment. The general execution steps are shown in figure below.

941_Instruction Cycle 1.png

Figure: Instruction execution steps


Related Discussions:- Explain the term instruction cycle

How much volts a CMOS logic device has approximately, The logic 0 level of ...

The logic 0 level of a CMOS logic device is approximately ? Ans. The low level is 0 volts approx in CMOS logic device.

What is generalization, What is generalization? Generalization is a rel...

What is generalization? Generalization is a relationship among a class (super class) and one or more variations of the class (sub classes).It arrange classes by similarities an

Finest way to get a reference to the viewport, What is finest way to get a ...

What is finest way to get a reference to the viewport from anywhere in the code? Ans) You can use refs config to set a reference on the Application/Controllers

Instruction pipeline, example of branching take place in instructon pipelin...

example of branching take place in instructon pipeline

Ground substitution, Ground substitution: Here the act of performing a...

Ground substitution: Here the act of performing an instantiation is a function like there is only one possible outcome means we can write it as a function. And the notation Su

Validate the xml document , As an XML expert you are needed to model a syst...

As an XML expert you are needed to model a system for an online furniture shop. After an interview with the shop manager you have the certain information: The detail of th

Processes of information system, Processes of Information System The b...

Processes of Information System The basic purpose of the Information System is to convert and manage data into something that is meaningful. Bocij et al (2003) lists the basic

Ds, explain about relations

explain about relations

Describe the bespoke versus off-the-shelf software, Bespoke versus off-the-...

Bespoke versus off-the-shelf software Generally software packages are bought off-the-shelf. Though, certain applications (generally for industrial companies, commercial busines

Learning weights in perceptrons, Learning Weights in Perceptrons: Furt...

Learning Weights in Perceptrons: Furthermore details are we will look at the learning method for weights in multi-layer networks next lecture. Thus the following description o

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