Patchwork [v2,03/20] softfloat: add floatx80 constants

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Submitter Aurelien Jarno
Date April 20, 2011, 10:11 a.m.
Message ID <1303294329-22634-4-git-send-email-aurelien@aurel32.net>
Download mbox | patch
Permalink /patch/92139/
State New
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Comments

Aurelien Jarno - April 20, 2011, 10:11 a.m.
Add floatx80 constants similarly to float32 or float64.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
 fpu/softfloat.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

Patch

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,