diff options
Diffstat (limited to 'sysdeps/i386/fpu/s_tanf.S')
| -rw-r--r-- | sysdeps/i386/fpu/s_tanf.S | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sysdeps/i386/fpu/s_tanf.S b/sysdeps/i386/fpu/s_tanf.S index 7a7509119b..355dff9c8d 100644 --- a/sysdeps/i386/fpu/s_tanf.S +++ b/sysdeps/i386/fpu/s_tanf.S @@ -7,10 +7,23 @@ RCSID("$NetBSD: s_tanf.S,v 1.3 1995/05/09 00:31:09 jtc Exp $") -/* A float's domain isn't large enough to require argument reduction. */ ENTRY(__tanf) flds 4(%esp) 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 (__tanf) |