[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v2 04/20] softfloat: add pi constants
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH v2 04/20] softfloat: add pi constants |
Date: |
Wed, 20 Apr 2011 12:11:53 +0200 |
Add a pi constant for float32, float64, floatx80. It will be used by
target-i386 and later by the trigonometric functions.
Signed-off-by: Aurelien Jarno <address@hidden>
---
fpu/softfloat.h | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
v1 -> v2: fix typo creating a float64 constant with make_float32
diff --git a/fpu/softfloat.h b/fpu/softfloat.h
index 90e0c41..7b3b88f 100644
--- a/fpu/softfloat.h
+++ b/fpu/softfloat.h
@@ -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)
--
1.7.2.3
- [Qemu-devel] [PATCH v2 00/20] *** SUBJECT HERE ***, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 14/20] target-i386: fix helper_fsqrt() wrt softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 11/20] target-i386: fix helper_fbld_ST0() wrt softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 04/20] softfloat: add pi constants,
Aurelien Jarno <=
- [Qemu-devel] [PATCH v2 02/20] softfloat: fix floatx80_is_infinity(), Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 15/20] target-i386: replace approx_rsqrt and approx_rcp by softfloat ops, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 06/20] softfloat: add floatx80_compare*() functions, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 20/20] target-i386: switch to softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 19/20] target-i386: fix constants wrt softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 09/20] softfloat-native: add float*_is_any_nan() functions, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 12/20] target-i386: fix helper_fxtract() wrt softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 16/20] target-i386: add CPU86_LDouble <-> double conversion functions, Aurelien Jarno, 2011/04/20