In 8086 the overflow flag is set when _____.?
(a) The sum is more than 16 bits
(b) Signed numbers go out of their range after an arithmetic operation
(c) Carry and sign flags are set
(d) Subtraction
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In 8086 the overflow flag is set when _____.?
(a) The sum is more than 16 bits
(b) Signed numbers go out of their range after an arithmetic operation
(c) Carry and sign flags are set
(d) Subtraction
The answer for 8086 the overflow flag is b) set when Signed numbers go out of their range after an arithmetic operation .
The overflow flag is used to test if an integer overflows after the last operation. The overflow flag is set when it overflows to a low data value in memory. And this can happen if the memory address contains an unsigned long (unsigned integers have a limited range).
In 8086, the overflow flag is set when the result of an arithmetic operation does not fit in the range defined by a signed number. The overflow flag can be used to detect when you have overflowed a signed number after performing an arithmetic operation. For example, assume that you are trying to store a value of 12346789 into a variable with type int.