How does computer know that overflow has happened, Computer Engineering

Assignment Help:

Q. How does computer know that overflow has happened?

Illustration: Add numbers 65 and 75 in 8 bit register in signed 2's complement notation. 

1764_How does computer know that overflow has happened.png

Here expected result is +140 however binary sum is a negative number and is equal to -116 that obviously is a wrong result. This has happened on account of overflow.

How does computer know that overflow has happened?

If the carry in the sign bit isn't equal to carry out of sign bit then overflow should have happened.

Another general test of overflow is: if the sign of both operands is same at the time of addition then overflow should have occurred if sign of resultant is different than that of sign of any operand.


Related Discussions:- How does computer know that overflow has happened

Explain common sub expression elimination, Explain briefly Common sub ex...

Explain briefly Common sub expression elimination of the commonly used code optimization techniques. Common sub expression elimination: In given expression as "(a+b)-(

Design a BCD to excess 3 code converter using NAND gates, Design a BCD to e...

Design a BCD to excess 3 code converter using minimum number of NAND gates. Hint: use k map techniques. Ans. Firstly we make the truth table: BCD no

Explain the multiple bus organization structure, Explain the multiple bus o...

Explain the multiple bus organization structure with neat diagram. The multiple bus organization is using more buses instead of one bus to decrease the number of steps needed an

Subtraction of 01100-00011 using 2's complement method, Subtraction of 0110...

Subtraction of 01100-00011 using 2's complement method Ans. Firstly 1's complement of 00011 is 11100 and 2's complement is 11100 + 1 = 11101. Thus If a last carry is

What are the roll and page areas, What are the roll and page areas? Ro...

What are the roll and page areas? Roll and page areas are SAP R/3 buffers used to kept user contexts (process requests).  The SAP dispatcher assigns procedure requests to work

Define memory utilization factor, Memory utilization factor shall be comput...

Memory utilization factor shall be computed as? Ans. memory in use/total memory connected.

Difference between the fork -join and begin-end, Difference between the for...

Difference between the fork -join and begin-end. The fork - join keywords: Groups several statements together.Cause statements to be evaluated in parallel (all at the same

What is sorted linked list, Linked list means node which is linked each oth...

Linked list means node which is linked each other with  a line. It means that every node is connected with another one. Every node of the list hold the reference of the next node.

What are the applications of edi in business, What are the applications of ...

What are the applications of EDI in business A.  Organistions that use EDI Extensive users of EDI contain: BHS- is a UK and European retailer dealing majorly in appare

How to update bios chip, There are two methods to update your BIOS chip: ...

There are two methods to update your BIOS chip: 1. Flash it (software method) 2. Program it with an EEPROM programmer. This is a hardware method. This is how we at BIOSMAN 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