The following table shows the quantization and overflow modes.
|Word length in bits
|The number of bits used
to represent the integer value, that is, the number of integer bits to
the left of the binary point. When
this value is negative, it represents the number of implicit sign bits (for signed
representation), or the number of implicit zero bits (for unsigned representation) to the
right of the binary point. For
|Quantization mode: This dictates the behavior when greater precision is generated than can be defined by smallest fractional bit in the variable used to store the result.
|Round to plus infinity
|Round to zero
|Round to minus infinity
|Round to infinity
|Truncation to minus infinity (default)
|Truncation to zero
Overflow mode: This dictates the behavior when the result of an operation exceeds the maximum (or minimum in the case of negative numbers) possible value that can be stored in the variable used to store the result.
|Saturation to zero
|Wrap around (default)
|Sign magnitude wrap around
|This defines the number of saturation bits in overflow wrap modes.