NAME
    SPNeg -- Negate the supplied floating point number.
SYNOPSIS
    fnum2 = SPNeg(fnum1)
    D0            D0
    float SPNeg(float fnum1);
FUNCTION
    Accepts a floating point number and returns the value
    of said number after having been subtracted from 0.0.
INPUTS
    fnum1   - floating point number.
RESULT
    fnum2   - floating point negation of fnum1.
BUGS
    None
SEE ALSO