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

Software design by using stacks and queues, Instructions: For this assignm...

Instructions: For this assignment, you will be using stacks and queues to solve a maze in a couple of different ways. You are supplied with code to start you off. When run, it ope

How many types of traceability in software engineering, How many types of t...

How many types of traceability in software engineering? i. Source traceability - These are generally the links between requirement to stakeholders who suggests these requiremen

What is a technical analyst, What is A Technical Analyst? Ans) Technical...

What is A Technical Analyst? Ans) Technical Analysts perform test assessments and validate system/functional test needs. Depending on the project, single person might wear more

Software for searching online retrieval systems, Software for Searching Onl...

Software for Searching Online Retrieval Systems : Each of the major online systems has its own software which supports its activities oil a host computer. Many of these hosts h

Testing, What is software testing?

What is software testing?

Give the procedure of the delphi method, Give the procedure of the Delphi m...

Give the procedure of the Delphi method. 1. The co-ordinator presents a specification and estimation form to all experts. 2. Co-ordinator calls a group meeting where the exp

What is control coupling, Q. What is Control coupling? Control couplin...

Q. What is Control coupling? Control coupling: Module A as well as B are said to be control coupled if they communicate by passing of control information. This is typically a

Software document, explain software document.create the necessary documents...

explain software document.create the necessary documents for employee management system.

Define the computer based system, Define the computer based system. The...

Define the computer based system. The computer based system can be explained as "a set or an arrangement of elements that are organized to accomplish some predefined goal by pr

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