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

Artificial intellegence, can yo do a project on Artificial Intelligence.The...

can yo do a project on Artificial Intelligence.The topic is L-system of flowers

Explain token count, Token count: -  A program is considered to be series o...

Token count: -  A program is considered to be series of tokens and if we count the number of tokens, some interesting results might be emerge. Tokens are classified as either opera

Determine the working of developer of software, Determine the working of de...

Determine the working of developer of Software As developer of Software and user of Software became separate organisation, business concepts such as software costing, Software

List the principles of a software design, List the principles of a software...

List the principles of a software design. i. The design process should not suffer from "tunnel vision". ii. The design should be traceable to the analysis model. iii. The

Describe the various steps of the reuse-oriented model, Q. Describe the var...

Q. Describe the various steps of the reuse-oriented model? The reuse-oriented model, also called reuse-oriented development (ROD), is a method of software development in which

Define external coupling, Q. Define External coupling? External coupli...

Q. Define External coupling? External coupling: A form of coupling in that a module has a dependency to other module external to the software being developed or to a particul

Explain storage testing, This is a explanation of whether or not certain pr...

This is a explanation of whether or not certain processing conditions use many storage [memory] than estimated.

Discuss the various strategies of design, Discuss the various strategies of...

Discuss the various strategies of design.  The design strategies are:      Functional design:   The system is designed from a functional viewpoint, initialising from with a

What is reverse engineering, What is reverse engineering?    It is a pr...

What is reverse engineering?    It is a process of examining software with a view to understanding its design and specification. -  In reverse engineering, source code and i

What are the different types of cohesion, What are the different types of C...

What are the different types of Cohesion? i. Coincidentally cohesive -The modules in which the set of tasks are related with each other loosely then such modules are called as

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