Motorola fast floating point number
flags:
zero : result is zero
negative : result is negative
overflow : exponent of the ieee-number was out of range for
ffp
Calculate the cosine and the sine of the given ffp-number
fnum1 that represents an angle in radians. The function
returns the sine of that number as a result and puts
the cosine of that number into *pfnum2 which must represent
a valid pointer to a ffp-number.
IEEE Single Precision Floating Point
flags:
zero : result is zero
negative : result is negative
overflow : exponent of the ieee-number was out of range for ffp