diff options
| author | marcel <marcel@FreeBSD.org> | 2008-12-23 22:20:59 +0000 |
|---|---|---|
| committer | marcel <marcel@FreeBSD.org> | 2008-12-23 22:20:59 +0000 |
| commit | cabae62b0ba1d31f524c393e294d3a5e08d543fc (patch) | |
| tree | e53e0cc50653c1177127b792f2618edc51c491fd /lib/libc/arm | |
| parent | 09a2776e693b4dac1f7a62f8e264ecf07bb78485 (diff) | |
| download | FreeBSD-src-cabae62b0ba1d31f524c393e294d3a5e08d543fc.zip FreeBSD-src-cabae62b0ba1d31f524c393e294d3a5e08d543fc.tar.gz | |
Add support for the FPA floating-point format on ARM. The
FPA floating-point format is identical to the VFP format,
but is always stored in big-endian.
Introduce _IEEE_WORD_ORDER to describe the byte-order of
the FP representation.
Obtained from: Juniper Networks, Inc
Diffstat (limited to 'lib/libc/arm')
| -rw-r--r-- | lib/libc/arm/_fpmath.h | 15 | ||||
| -rw-r--r-- | lib/libc/arm/arith.h | 2 |
2 files changed, 14 insertions, 3 deletions
diff --git a/lib/libc/arm/_fpmath.h b/lib/libc/arm/_fpmath.h index 98d7832..b0ce8f4 100644 --- a/lib/libc/arm/_fpmath.h +++ b/lib/libc/arm/_fpmath.h @@ -26,15 +26,26 @@ * $FreeBSD$ */ +#if defined(__VFP_FP__) +#define _IEEE_WORD_ORDER _BYTE_ORDER +#else +#define _IEEE_WORD_ORDER _BIG_ENDIAN +#endif + union IEEEl2bits { long double e; struct { -#ifndef __ARMEB__ +#if _BYTE_ORDER == _LITTLE_ENDIAN +#if _IEEE_WORD_ORDER == _LITTLE_ENDIAN unsigned int manl :32; +#endif unsigned int manh :20; unsigned int exp :11; unsigned int sign :1; -#else +#if _IEEE_WORD_ORDER == _BIG_ENDIAN + unsigned int manl :32; +#endif +#else /* _BYTE_ORDER == _LITTLE_ENDIAN */ unsigned int sign :1; unsigned int exp :11; unsigned int manh :20; diff --git a/lib/libc/arm/arith.h b/lib/libc/arm/arith.h index e6f1da0..be78d86 100644 --- a/lib/libc/arm/arith.h +++ b/lib/libc/arm/arith.h @@ -11,7 +11,7 @@ * architecture. See contrib/gdtoa/gdtoaimp.h for details. */ -#ifndef __ARMEB__ +#if !defined(__ARMEB__) && defined(__VFP_FP__) #define IEEE_8087 #define Arith_Kind_ASL 1 #define Sudden_Underflow |
