Chapter 1.6, Problem 8QE

Program Plan Intro

Overflow problem:

• Overflow is the problem that occurs when a computation produces a value that falls outside the range of values that can be represented.
• When using two’s complement notation, this might occur when adding two positive values or when adding two negative values.
• The condition can be detected by checking the sign bit of the answer.
• An overflow is indicated if the addition of two positive values results in the pattern for a negative value or if the sum of two negative values appears to be positive.