diff options
Diffstat (limited to 'lib/libc/mips/gen/hardfloat/fpsetsticky.c')
-rw-r--r-- | lib/libc/mips/gen/hardfloat/fpsetsticky.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/lib/libc/mips/gen/hardfloat/fpsetsticky.c b/lib/libc/mips/gen/hardfloat/fpsetsticky.c new file mode 100644 index 0000000..e433671 --- /dev/null +++ b/lib/libc/mips/gen/hardfloat/fpsetsticky.c @@ -0,0 +1,38 @@ +/* $NetBSD: fpsetsticky.c,v 1.5 2005/12/24 23:10:08 perry Exp $ */ + +/* + * Written by J.T. Conklin, Apr 11, 1995 + * Public domain. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); +#if defined(LIBC_SCCS) && !defined(lint) +__RCSID("$NetBSD: fpsetsticky.c,v 1.5 2005/12/24 23:10:08 perry Exp $"); +#endif /* LIBC_SCCS and not lint */ + +#include "namespace.h" + +#include <ieeefp.h> + +#ifdef __weak_alias +__weak_alias(fpsetsticky,_fpsetsticky) +#endif + +fp_except +fpsetsticky(sticky) + fp_except sticky; +{ + fp_except old; + fp_except new; + + __asm("cfc1 %0,$31" : "=r" (old)); + + new = old; + new &= ~(0x1f << 2); + new |= ((sticky & 0x1f) << 2); + + __asm("ctc1 %0,$31" : : "r" (new)); + + return (old >> 2) & 0x1f; +} |