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| 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 /sys/arm/include/ieee.h | |
| 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 'sys/arm/include/ieee.h')
| -rw-r--r-- | sys/arm/include/ieee.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sys/arm/include/ieee.h b/sys/arm/include/ieee.h index a7411dd..059d0dc 100644 --- a/sys/arm/include/ieee.h +++ b/sys/arm/include/ieee.h @@ -91,6 +91,12 @@ #define DBL_EXPBITS 11 #define DBL_FRACBITS 52 +#if defined(__VFP_FP__) +#define _IEEE_WORD_ORDER _BYTE_ORDER +#else +#define _IEEE_WORD_ORDER _BIG_ENDIAN +#endif + struct ieee_single { #if _BYTE_ORDER == _BIG_ENDIAN u_int sng_sign:1; @@ -110,10 +116,15 @@ struct ieee_double { u_int dbl_frach:20; u_int dbl_fracl; #else +#if _IEEE_WORD_ORDER == _LITTLE_ENDIAN u_int dbl_fracl; +#endif u_int dbl_frach:20; u_int dbl_exp:11; u_int dbl_sign:1; +#if _IEEE_WORD_ORDER == _BIG_ENDIAN + u_int dbl_fracl; +#endif #endif }; |
