NAME
        SPSub -- Subtract two floating point numbers.

SYNOPSIS
        fnum3 = SPSub(fnum1, fnum2)
        D0            D1     D0

        float SPSub(float fnum1, float fnum2);

FUNCTION
        Accepts two floating point numbers and returns the arithmetic
        subtraction of said numbers.

INPUTS
        fnum1   - floating point number.
        fnum2   - floating point number.

RESULT
        fnum3   - floating point number.

BUGS
        None.

SEE ALSO