Language Reference

FSEL(X,Y,Z)

Floating-point Selection

Returns the result of a floating-point selection operation. This result is determined by comparing the value of X with zero.

Parameters

X

must be of type REAL(4) or REAL(8).

Result Type and Attributes

Same as X, Y and Z.

Results

• If the value of X is greater than or equal to zero, then the value of Y is returned.
• If the value of X is smaller than zero or is a NaN, then the value of Z is returned.

A zero value is considered unsigned. That is, both +0 and -0 are equal to zero.