two fetch-execute cycles, Software Engineering

Assignment Help:

Consider an 8-bit system with 32 memory locations (numbered from 0 to 31) and 8 different instructions. Assume op code for "Load Accumulator" instruction is 510 and for "Add" instruction is 210. At this moment, the program counter register PC contains the value 00100 and is about to increment, memory locations contain the following values:   

Address Contents
01101   00110110
01100   01110100
01011   10111000
:
00110   01001100
00101   10101011
00100   01111000

Perform two fetch-execute cycles, present each step of the cycles and the contents of each special-purpose register at the beginning and at the end of each step of the cycles in binary. If you believe there is no information on the contents of a particular register, indicate it as [unknown] (e.g., MDR[unknown]). If overflow occurs, the MSB is stored in a single-bit flag register and not counted in Accumulator. Express the final contents of Accumulator in both binary and decimal. For your answer, use the following table (two first lines are given as sample):

Step

PC

MAR

MDR

IR

A

PC→MAR                beginning

00101

[unknown]

[unknown]

[unknown]

[unknown]

                                          end

00101

00101

[unknown]

[unknown]

[unknown]


Related Discussions:- two fetch-execute cycles

Explain productivity, Productivity Productivity refers to metrics and c...

Productivity Productivity refers to metrics and calculates of output from production processes, per unit of input. Productivity P may be conceived of as a metrics of the techni

What is re-engineering, Q. What is RE-ENGINEERING? RE-ENGINEERING :- I...

Q. What is RE-ENGINEERING? RE-ENGINEERING :- It is re-organizing as well as modifying existing system to make them more maintainable. It involves Source code translatio

Solution manual, i need solution manual for software engineering |10 editio...

i need solution manual for software engineering |10 edition by ian Sommerville

What is class diagram, Class diagram: A class diagram in the Unified Model...

Class diagram: A class diagram in the Unified Modelling Language (UML) is a type of static structure diagram that defines the structure of a system by showing the system's classes

Explain product metrics, What is Product metrics? A quality metric shou...

What is Product metrics? A quality metric should be a predictor of product quality. Classes of product metric Dynamic metrics which are collected by measurements made

Mobile help dack mangmant system, hello there!! I have above subject that I...

hello there!! I have above subject that I have final project and also I required with program

What is test incident report, A document reporting on any event that happen...

A document reporting on any event that happens during testing that needs further investigation.

First-cut entity relationship, A University has asked you to design and imp...

A University has asked you to design and implement a simple database to store student and module details (including details of which school students belong to and which schools run

Explain black box testing and its categories, Black Box Testing :-Black Box...

Black Box Testing :-Black Box Testing is also known as behavioural testing, focuses on the functional requirements of the software. It allows the software engineer to derive sets o

Determine the levels of capability maturity model, Determine the levels of ...

Determine the levels of Capability Maturity Model(CMM). Capability Maturity Model(CMM) Level 1:Initial - Few processes are explained  and individual efforts are taken. Le

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