diff options
Diffstat (limited to 'lib/msun/amd64/fenv.c')
| -rw-r--r-- | lib/msun/amd64/fenv.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/lib/msun/amd64/fenv.c b/lib/msun/amd64/fenv.c index e126070..8b49b35 100644 --- a/lib/msun/amd64/fenv.c +++ b/lib/msun/amd64/fenv.c @@ -29,7 +29,13 @@ #include <sys/cdefs.h> #include <sys/types.h> #include <machine/fpu.h> -#include <fenv.h> + +#define __fenv_static +#include "fenv.h" + +#ifdef __GNUC_GNU_INLINE__ +#error "This file must be compiled with C99 'inline' semantics" +#endif const fenv_t __fe_dfl_env = { { 0xffff0000 | __INITIAL_FPUCW__, @@ -41,6 +47,9 @@ const fenv_t __fe_dfl_env = { __INITIAL_MXCSR__ }; +extern inline int feclearexcept(int __excepts); +extern inline int fegetexceptflag(fexcept_t *__flagp, int __excepts); + int fesetexceptflag(const fexcept_t *flagp, int excepts) { @@ -69,6 +78,10 @@ feraiseexcept(int excepts) return (0); } +extern inline int fetestexcept(int __excepts); +extern inline int fegetround(void); +extern inline int fesetround(int __round); + int fegetenv(fenv_t *envp) { @@ -98,6 +111,8 @@ feholdexcept(fenv_t *envp) return (0); } +extern inline int fesetenv(const fenv_t *__envp); + int feupdateenv(const fenv_t *envp) { @@ -120,12 +135,12 @@ __feenableexcept(int mask) mask &= FE_ALL_EXCEPT; __fnstcw(&control); __stmxcsr(&mxcsr); - omask = (control | mxcsr >> _SSE_EMASK_SHIFT) & FE_ALL_EXCEPT; + omask = ~(control | mxcsr >> _SSE_EMASK_SHIFT) & FE_ALL_EXCEPT; control &= ~mask; __fldcw(control); mxcsr &= ~(mask << _SSE_EMASK_SHIFT); __ldmxcsr(mxcsr); - return (~omask); + return (omask); } int @@ -137,12 +152,12 @@ __fedisableexcept(int mask) mask &= FE_ALL_EXCEPT; __fnstcw(&control); __stmxcsr(&mxcsr); - omask = (control | mxcsr >> _SSE_EMASK_SHIFT) & FE_ALL_EXCEPT; + omask = ~(control | mxcsr >> _SSE_EMASK_SHIFT) & FE_ALL_EXCEPT; control |= mask; __fldcw(control); mxcsr |= mask << _SSE_EMASK_SHIFT; __ldmxcsr(mxcsr); - return (~omask); + return (omask); } __weak_reference(__feenableexcept, feenableexcept); |
