diff options
Diffstat (limited to 'sysdeps/x86_64/fpu/s_tanl.S')
| -rw-r--r-- | sysdeps/x86_64/fpu/s_tanl.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/x86_64/fpu/s_tanl.S b/sysdeps/x86_64/fpu/s_tanl.S new file mode 100644 index 0000000000..674e908acc --- /dev/null +++ b/sysdeps/x86_64/fpu/s_tanl.S @@ -0,0 +1,33 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + * + * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>. + * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: $") + +ENTRY(__tanl) + fldt 8(%rsp) + fptan + fnstsw %ax + testl $0x400,%eax + jnz 1f + fstp %st(0) + ret +1: fldpi + fadd %st(0) + fxch %st(1) +2: fprem1 + fstsw %ax + testl $0x400,%eax + jnz 2b + fstp %st(1) + fptan + fstp %st(0) + ret +END (__tanl) +weak_alias (__tanl, tanl) |