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| author | das <das@FreeBSD.org> | 2011-10-21 06:41:46 +0000 |
|---|---|---|
| committer | das <das@FreeBSD.org> | 2011-10-21 06:41:46 +0000 |
| commit | 28e8dea25892d12660b01d59590e5a8e70ae3880 (patch) | |
| tree | 4864c165434b2f4d41bd1dcd9710d5f86fe98dcc /sys/ia64/include/ieeefp.h | |
| parent | 9373f7b9c4f30f6577adcbbba17be55d53f114b6 (diff) | |
| download | FreeBSD-src-28e8dea25892d12660b01d59590e5a8e70ae3880.zip FreeBSD-src-28e8dea25892d12660b01d59590e5a8e70ae3880.tar.gz | |
People porting FreeBSD to new architectures ought not have to
implement a deprecated FPU control interface in addition to the
standard one. To make this clearer, further deprecate ieeefp.h
by not declaring the function prototypes except on architectures
that implement them already.
Currently i386 and amd64 implement the ieeefp.h interface for
compatibility, and for fp[gs]etprec(), which doesn't exist on
most other hardware. Powerpc, sparc64, and ia64 partially implement
it and probably shouldn't, and other architectures don't implement it
at all.
Diffstat (limited to 'sys/ia64/include/ieeefp.h')
| -rw-r--r-- | sys/ia64/include/ieeefp.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/ia64/include/ieeefp.h b/sys/ia64/include/ieeefp.h index 3b0cd4b..7cde91b 100644 --- a/sys/ia64/include/ieeefp.h +++ b/sys/ia64/include/ieeefp.h @@ -29,6 +29,8 @@ #ifndef _MACHINE_IEEEFP_H_ #define _MACHINE_IEEEFP_H_ +/* Deprecated historical FPU control interface */ + #include <machine/fpu.h> typedef int fp_except_t; @@ -45,4 +47,11 @@ typedef enum { FP_RZ /* round toward zero */ } fp_rnd_t; +__BEGIN_DECLS +extern fp_rnd_t fpgetround(void); +extern fp_rnd_t fpsetround(fp_rnd_t); +extern fp_except_t fpgetmask(void); +extern fp_except_t fpsetmask(fp_except_t); +__END_DECLS + #endif /* !_MACHINE_IEEEFP_H_ */ |
