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 software testing, Explain Software Testing. Why is it important t...

Explain Software Testing. Why is it important to conduct the testing of software? Software testing is verifying if software meets the customer's requirements; if it has high

Application design - micro cds-isis software, Application Design: Micr...

Application Design: Micro CDS/ISIS is a text oriented software package. It is a good , ho ice if one wishes to store textual data, retrieve the data by certain criteria, and d

Disadvantage of software package, Disadvantage of Software package: Th...

Disadvantage of Software package: There are some disadvantages which need to be looked into. They are:  i)  A commercial software package will have a number of built-in

What is coverage analysis, What is Coverage analysis? Determining and as...

What is Coverage analysis? Determining and assessing calculated associated with the invocation of program structural elements to verify the adequacy of a test run. Coverage anal

What is clear box testing, Clear box testing is the similar as white box te...

Clear box testing is the similar as white box testing. It is a testing approach that consider the application's program structure, and acquires test cases from the application's pr

What is control structure testing, Explain Control Structure Testing Ans...

Explain Control Structure Testing Ans) Due to basis path testing alone is insufficient, other methods should be utilized. Condition testing can be utilized to design test cas

Define partitioning, Partitioning:- Problems are often too large and diffi...

Partitioning:- Problems are often too large and difficult to be understood as a whole. For this reason, we tend to partition such difficulties into parts that can be easily unders

What is a software version, What is a software version? A software versi...

What is a software version? A software version is a start release (or re-release) of a software associated with a done compilation (or recompilation) of the software.

Describe system testing, Q. Describe system testing? Ans. System testi...

Q. Describe system testing? Ans. System testing: System test are designed to validate a completely developed systems with a view to assuring that it meets its requirements

What is software requirement specification, What is Software requirement Sp...

What is Software requirement Specification (SRS)? Software Requirement Specification Document is the output of requirement examines stage of the software development life cycle

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