diff options
Diffstat (limited to 'libm/kvx/fegetenv.c')
-rw-r--r-- | libm/kvx/fegetenv.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/libm/kvx/fegetenv.c b/libm/kvx/fegetenv.c new file mode 100644 index 000000000..0f99541b2 --- /dev/null +++ b/libm/kvx/fegetenv.c @@ -0,0 +1,21 @@ +/* + (C) Copyright 2019 Kalray S.A. + This file provides fegetenv for the Coolidge processor. +*/ + +#include <fenv.h> + +int fegetenv(fenv_t *envp) +{ + /* Get the current environment ($cs) */ + fenv_t fe; + fe = __builtin_kvx_get(KVX_SFR_CS); + + /* Mask $cs status to keep exception flags and rounding mode only. */ + *envp = (fe & (FE_ALL_EXCEPT | FE_RND_MASK)); + + /* The above insn cannot fail (while the OS allows access to the + floating-point exception flags of the $cs register). Return + success. */ + return 0; +} |