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