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

Event procedure and a general procedure, (a) Visual Basic is governed by an...

(a) Visual Basic is governed by an event processor. Explain the meaning of this phrase. (b) Differentiate between an event procedure and a general procedure. (c) "For datab

One want record a data driven test then how will one do that, You want to r...

You want to record a data driven test. How will you do that? There are 3 ways to create a data-driven test: a.) By using data from a data table b.) By using data from a f

Illustrate about system testing, Q. Illustrate about System Testing? Sy...

Q. Illustrate about System Testing? System Testing: This testing centred on validating the product with respect to software specification Document. Techniques as function testi

What is the meaning of cardinality in data modelling, What is the meaning o...

What is the meaning of cardinality in data modelling? Cardinality in data modelling, cardinality specifies how the of occurrences of one object is linked to the number of occur

Database definition - micro cds/isis application, Database Definition: ...

Database Definition: There are four basic steps involved in defining a database. They are:  i)  Creating a Field Definition Table (FDT) : The possible content of data recor

Define the sanity testing, Sanity testing : - Sanity testing is used to ...

Sanity testing : - Sanity testing is used to make sure that multiple or conflicting functions or variables do not exist in the system. - It verifies that the components of th

Prolog, package(''python'', ''2.6.5''). package(''python'', ''2.5.4''). pac...

package(''python'', ''2.6.5''). package(''python'', ''2.5.4''). package(''python'', ''1.5.2''). package(''python'', ''3.1.0''). and I already have these functions that provide me:

What is risk assessment, What is Risk Assessment? Ans) A associated impa...

What is Risk Assessment? Ans) A associated impact and its comprehensive evaluation of the risk

What is software architecture, What is software architecture The softwa...

What is software architecture The software architecture of a program or computing system is the structure or structures of the system, which comprises software components, the

Software Testing Methodologies, Write a program and identify DU path for Te...

Write a program and identify DU path for Telecom domain

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