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

#title., Ask EXPLAIN GENERIC PROCESS MODEL & REQUIREMENT ENGINEERING PROCE...

Ask EXPLAIN GENERIC PROCESS MODEL & REQUIREMENT ENGINEERING PROCESSquestion #Minimum 100 words accepted#

What is syntax, 1) The relationship between characters or groups of charact...

1) The relationship between characters or groups of characters independent of their meanings or the manner of their interpretation and use; 2) The formation of expressions in a

Evaluate the bulleted list of information-related items, It goes by many te...

It goes by many terms - information overload, analysis paralysis, data dumping, and so on. You know what we're talking about. It is indeed greater to live in the information age wi

What is equivalence partitioning, What is equivalence partitioning? Equ...

What is equivalence partitioning? Equivalence partitioning is a black box method that separates the input domain into classes of data. From this data test cases can be derived.

Illustrate the features of function count, Q. Illustrate the Features of fu...

Q. Illustrate the Features of function count? Features:- Function point goes forward is independent of the language tools or methodologies used for implementation.

Mention some of the drawbacks of rad model, Mention some of the drawbacks o...

Mention some of the drawbacks of RAD model. Not suitable for largescale projects. Commitment of developers & customers are required. Not appropriate when technical ris

HART protocol DD development, I am working on DD development project and I...

I am working on DD development project and I am using 475 field communicator for testing DD. While development of DD, I tested DD with SDC 625 PC application using HART modem. I h

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