diff options
Diffstat (limited to 'sysdeps/libm-i387/s_tanl.S')
| -rw-r--r-- | sysdeps/libm-i387/s_tanl.S | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/sysdeps/libm-i387/s_tanl.S b/sysdeps/libm-i387/s_tanl.S new file mode 100644 index 0000000000..6b1532af9e --- /dev/null +++ b/sysdeps/libm-i387/s_tanl.S @@ -0,0 +1,31 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + * + * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: $") + +ENTRY(__tanl) + fldt 4(%esp) + fptan + fnstsw %ax + andw $0x400,%ax + jnz 1f + fstp %st(0) + ret +1: fldpi + fadd %st(0) + fxch %st(1) +2: fprem1 + fstsw %ax + andw $0x400,%ax + jnz 2b + fstp %st(1) + fptan + fstp %st(0) + ret +weak_alias (__tanl, tanl) |