diff options
Diffstat (limited to 'lib/libc/mips/gen/fpsetmask.c')
-rw-r--r-- | lib/libc/mips/gen/fpsetmask.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/lib/libc/mips/gen/fpsetmask.c b/lib/libc/mips/gen/fpsetmask.c new file mode 100644 index 0000000..c57f52f --- /dev/null +++ b/lib/libc/mips/gen/fpsetmask.c @@ -0,0 +1,28 @@ +/* + * Written by J.T. Conklin, Apr 11, 1995 + * Public domain. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char rcsid[] = "$OpenBSD$"; +#endif /* LIBC_SCCS and not lint */ + +#include <ieeefp.h> + +fp_except +fpsetmask(mask) + fp_except mask; +{ + fp_except old; + fp_except new; + + __asm__("cfc1 %0,$31" : "=r" (old)); + + new = old; + new &= ~(0x1f << 7); + new |= ((mask & 0x1f) << 7); + + __asm__("ctc1 %0,$31" : : "r" (new)); + + return (old >> 7) & 0x1f; +} |