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| author | mike <mike@FreeBSD.org> | 2003-02-26 16:04:34 +0000 |
|---|---|---|
| committer | mike <mike@FreeBSD.org> | 2003-02-26 16:04:34 +0000 |
| commit | 39b6d14ab492b391ff4eee3737dd03a2ddbb33fa (patch) | |
| tree | cd87c888cf7fce15baf29bb4d3650c69a6f4be10 /lib/libc/ia64 | |
| parent | c65b6d4325cbd6ac51155406331d8f9895f2f058 (diff) | |
| download | FreeBSD-src-39b6d14ab492b391ff4eee3737dd03a2ddbb33fa.zip FreeBSD-src-39b6d14ab492b391ff4eee3737dd03a2ddbb33fa.tar.gz | |
ia64 actually uses 80-bit long doubles and must support big and little
endian at compile-time.
Reviewed by: das
Diffstat (limited to 'lib/libc/ia64')
| -rw-r--r-- | lib/libc/ia64/_fpmath.h | 21 | ||||
| -rw-r--r-- | lib/libc/ia64/gen/infinity.c | 9 |
2 files changed, 27 insertions, 3 deletions
diff --git a/lib/libc/ia64/_fpmath.h b/lib/libc/ia64/_fpmath.h index 80ea88a..33e6a32 100644 --- a/lib/libc/ia64/_fpmath.h +++ b/lib/libc/ia64/_fpmath.h @@ -27,14 +27,29 @@ * $FreeBSD$ */ +#include <sys/endian.h> + union IEEEl2bits { long double e; struct { - unsigned long manl :64; - unsigned long manh :48; +#if _BYTE_ORDER == _LITTLE_ENDIAN + unsigned int manl :32; + unsigned int manh :32; unsigned int exp :15; unsigned int sign :1; + unsigned long junk :48; +#else /* _BIG_ENDIAN */ + unsigned long junk :48; + unsigned int sign :1; + unsigned int exp :15; + unsigned int manh :32; + unsigned int manl :32; +#endif } bits; }; -#define mask_nbit_l(u) ((u).bits.manl &= 0x7fffffffffffffff) +#if _BYTE_ORDER == _LITTLE_ENDIAN +#define mask_nbit_l(u) ((u).bits.manh &= 0x7fffffff) +#else /* _BIG_ENDIAN */ +#define mask_nbit_l(u) ((u).bits.manh &= 0xffffff7f) +#endif diff --git a/lib/libc/ia64/gen/infinity.c b/lib/libc/ia64/gen/infinity.c index ac7fc38..1ae92a8 100644 --- a/lib/libc/ia64/gen/infinity.c +++ b/lib/libc/ia64/gen/infinity.c @@ -30,10 +30,19 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); +#include <sys/endian.h> #include <math.h> /* bytes for +Infinity on an ia64 (IEEE double format) */ +#if _BYTE_ORDER == _LITTLE_ENDIAN const union __infinity_un __infinity = { { 0, 0, 0, 0, 0, 0, 0xf0, 0x7f } }; +#else /* _BIG_ENDIAN */ +const union __infinity_un __infinity = { { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 } }; +#endif /* bytes for NaN */ +#if _BYTE_ORDER == _LITTLE_ENDIAN const union __nan_un __nan = { { 0, 0, 0xc0, 0xff } }; +#else /* _BIG_ENDIAN */ +const union __nan_un __nan = { { 0xff, 0xc0, 0, 0 } }; +#endif |
