Lines Matching refs:X

8 |	Input: Double-extended number X in location pointed to
11 |	Output: The value cosh(X) returned in floating-point register Fp0.
23 |	1. If |X| > 16380 log2, go to 3.
25 |	2. (|X| <= 16380 log2) Cosh(X) is obtained by the formulae
26 |		y = |X|, z = exp(Y), and
27 |		cosh(X) = (1/2)*( z + 1/z ).
30 |	3. (|X| > 16380 log2). If |X| > 16480 log2, go to 5.
32 |	4. (16380 log2 < |X| <= 16480 log2)
33 |		cosh(X) = sign(X) * exp(|X|)/2.
34 |		However, invoking exp(|X|) may cause premature overflow.
35 |		Thus, we calculate sinh(X) as follows:
36 |		Y	:= |X|
42 |	5. (|X| > 16480 log2) sinh(X) must overflow. Return
70 |--COSH(X) = 1 FOR DENORMALIZED X
88 |--THIS IS THE USUAL CASE, |X| < 16380 LOG2
89 |--COSH(X) = (1/2) * ( EXP(X) + 1/EXP(X) )
91 	fabsx		%fp0		| ...|X|
96 	bsr		setox		| ...FP0 IS EXP(|X|)
97 	fmuls		#0x3F000000,%fp0	| ...(1/2)EXP(|X|)
101 	fdivx		%fp0,%fp1		| ...1/(2 EXP(|X|))
113 	fsubd		T1(%pc),%fp0		| ...(|X|-16381LOG2_LEAD)
114 	fsubd		T2(%pc),%fp0		| ...|X| - 16381 LOG2, ACCURATE