Execution of a machine instruction, Basic Computer Science

Assignment Help:

Execution of a machine instruction:

Execution of a machine instruction on modern processors involves a complex sequence of operations with multiple cycles. One instruction cycle typically involves Fetch, Decode, Execute and Write back cycles. During Fetch cycle the instruction is fetched from memory. During Decode cycle the instruction is processed by the control unit of the CPU, which generate the set of micro-operations and timing signals required to execute the instruction. The micro-operations are then executed during Execute cycle to complete the instruction and any results generated are then written back to memory during Write back cycle. An instruction cycle may also involve one or more operand fetch cycles. The control unit is responsible for overall control and coordination of instruction execution. It generates the set of micro-operations either through a hard wired logic or with the help of micro program sequencer. Executing a program therefore involves executing a large number of machine instructions, where every machine instruction execution requires executing several micro-operations.      


Related Discussions:- Execution of a machine instruction

Variable - concept of programming language, Variable - Concept of programmi...

Variable - Concept of programming language: Variable: As referencing memory by its physical address is very tedious, variable names are used. A variable is a symbolic name giv

Mainframe architecture, Mainframe Architecture: Till a few decades bac...

Mainframe Architecture: Till a few decades back, all computing was controlled through the central mainframes server. Multiple users could connect to the central host through u

Central processing unit, Central Processing Unit Microprocessor Th...

Central Processing Unit Microprocessor The microprocessor is an important component in the CPU. It is the unit which processes the instructions depending on its capability

Computer Networking Scenario help, The project designs a school computer la...

The project designs a school computer lab with the necessary hardware and software components along with the IP address for different components. The computer lab consists of one I

Algorithm and flowchart, Write an alogorithm to calculate the right angled ...

Write an alogorithm to calculate the right angled triangle

What help with this Assembly language Subroutine, Write an ARM subroutine w...

Write an ARM subroutine which will extract a substring from a string. You will need to use the library routine malloc to allocate memory for the new string. The subroutine signatu

Explain the components of it infrastructure, Question 1 Explain in detail ...

Question 1 Explain in detail the different modes of Transportation Question 2 State the meaning of Distribution Strategies. Discuss the different Distribution Strategies

Assembly, can you help me to do my assembly program homework

can you help me to do my assembly program homework

Functions, each of the following functions has the form f(x ) = (ax+b) mod ...

each of the following functions has the form f(x ) = (ax+b) mod n. assume that each function has type N base n arrow N base n, so that we can think of f as a cipher for an alphabet

Education and society, mention the aims of education in present scenario

mention the aims of education in present scenario

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