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

Design a half adder, Q. Design a half adder? In half adder inputs are: ...

Q. Design a half adder? In half adder inputs are: The augend let's say 'x' and addend 'y' bits. The outputs are sum 'S' and carry 'C' bits. Logical relationship betwee

What is enhanced ide, Q. What is Enhanced IDE? The principle behind EID...

Q. What is Enhanced IDE? The principle behind EIDE interface is the same as in IDE interface however this drive has capacities varying from 10.2GB to 20.5GB. The rotation speed

What is process, What is Process? Process: A process is a program in ...

What is Process? Process: A process is a program in execution. It is an active entity, represented through the value of the program counter and the contents of registers o

Illustrate basic strategy used in raid, Q. Illustrate Basic strategy used i...

Q. Illustrate Basic strategy used in RAID? Basic strategy used in RAID is to replace large capacity disk drive with multiple smaller capacity disks. Data on these disks is dist

?????, c program??????????

c program??????????

Explain call and return statements, Q. Explain Call and Return Statements? ...

Q. Explain Call and Return Statements? CALL:       CALL X    Procedure Call to procedure/function named X   CALL instruction causes the following to happen:  1.  Decre

Decode the code, how to write mobile keypad program in c++

how to write mobile keypad program in c++

Basic architecture of computer system, Q. Basic Architecture of computer sy...

Q. Basic Architecture of computer system? Replacing the ALU and CU (i.e., CPU) of Figure by a microprocessor, and storing instructions and data in the same memory, one arrives

Find the magnetic declination, Question Use the National Geophysical Da...

Question Use the National Geophysical Data Center software tool to find the magnetic declination. The link to the web site is in Useful Links on the course Blackboard home page

Concept of mouse, The concept of Mouse was designed by Douglas C. Engelbart...

The concept of Mouse was designed by Douglas C. Engelbart of Stanford Research institute and first Mouse was designed by Xerox corporation.  Mouse itself is a device that gives you

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