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[Qemu-devel] [PATCH v2 03/20] softfloat: add floatx80 constants
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH v2 03/20] softfloat: add floatx80 constants |
Date: |
Wed, 20 Apr 2011 12:11:52 +0200 |
Add floatx80 constants similarly to float32 or float64.
Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>
---
fpu/softfloat.h | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/fpu/softfloat.h b/fpu/softfloat.h
index 3363128..90e0c41 100644
--- a/fpu/softfloat.h
+++ b/fpu/softfloat.h
@@ -154,6 +154,7 @@ typedef struct {
uint64_t low;
uint16_t high;
} floatx80;
+#define make_floatx80(exp, mant) ((floatx80) { mant, exp })
#endif
#ifdef FLOAT128
typedef struct {
@@ -584,6 +585,12 @@ INLINE int floatx80_is_any_nan(floatx80 a)
return ((a.high & 0x7fff) == 0x7fff) && (a.low<<1);
}
+#define floatx80_zero make_floatx80(0x0000, 0x0000000000000000LL)
+#define floatx80_one make_floatx80(0x3fff, 0x8000000000000000LL)
+#define floatx80_ln2 make_floatx80(0x3ffe, 0xb17217f7d1cf79acLL)
+#define floatx80_half make_floatx80(0x3ffe, 0x8000000000000000LL)
+#define floatx80_infinity make_floatx80(0x7fff, 0x8000000000000000LL)
+
/*----------------------------------------------------------------------------
| The pattern for a default generated extended double-precision NaN. The
| `high' and `low' values hold the most- and least-significant bits,
--
1.7.2.3
- Re: [Qemu-devel] [PATCH v2 04/20] softfloat: add pi constants, (continued)
- [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
- [Qemu-devel] [PATCH v2 03/20] softfloat: add floatx80 constants,
Aurelien Jarno <=
- [Qemu-devel] [PATCH v2 05/20] softfloat-native: add a few constant values, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 07/20] softfloat: fix float*_scalnb() corner cases, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 13/20] target-i386: fix helper_fdiv() wrt softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 18/20] target-i386: fix helper_fprem() and helper_fprem1() wrt softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 08/20] softfloat-native: fix float*_scalbn() functions, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 17/20] target-i386: fix logarithmic and trigonometric helpers wrt softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 10/20] target-i386: fix helper_fscale() wrt softfloat, Aurelien Jarno, 2011/04/20