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softfloat: add pi constants 

Add a pi constant for float32, float64, floatx80. It will be used by
target-i386 and later by the trigonometric functions.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2011-04-20 13:04:22 +02:00
parent f3218a8df0
commit c4b4c77a80
1 changed files with 3 additions and 0 deletions
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3
fpu/softfloat.h
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@ -387,6 +387,7 @@ INLINE float32 float32_set_sign(float32 a, int sign)
#define float32_zero make_float32(0)
#define float32_one make_float32(0x3f800000)
#define float32_ln2 make_float32(0x3f317218)
#define float32_pi make_float32(0x40490fdb)
#define float32_half make_float32(0x3f000000)
#define float32_infinity make_float32(0x7f800000)
@ -499,6 +500,7 @@ INLINE float64 float64_set_sign(float64 a, int sign)
#define float64_zero make_float64(0)
#define float64_one make_float64(0x3ff0000000000000LL)
#define float64_ln2 make_float64(0x3fe62e42fefa39efLL)
#define float64_pi make_float64(0x400921fb54442d18LL)
#define float64_half make_float64(0x3fe0000000000000LL)
#define float64_infinity make_float64(0x7ff0000000000000LL)
@ -588,6 +590,7 @@ INLINE int floatx80_is_any_nan(floatx80 a)
#define floatx80_zero make_floatx80(0x0000, 0x0000000000000000LL)
#define floatx80_one make_floatx80(0x3fff, 0x8000000000000000LL)
#define floatx80_ln2 make_floatx80(0x3ffe, 0xb17217f7d1cf79acLL)
#define floatx80_pi make_floatx80(0x4000, 0xc90fdaa22168c235LL)
#define floatx80_half make_floatx80(0x3ffe, 0x8000000000000000LL)
#define floatx80_infinity make_floatx80(0x7fff, 0x8000000000000000LL)