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authorUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
committerUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
commitabfbdde177c3a7155070dda1b2cdc8292054cc26 (patch)
treee021306b596381fbf8311d2b7eb294e918ff17c8 /sysdeps/i386/fpu/s_tan.S
parent86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff)
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Update.
Diffstat (limited to 'sysdeps/i386/fpu/s_tan.S')
-rw-r--r--sysdeps/i386/fpu/s_tan.S30
1 files changed, 30 insertions, 0 deletions
diff --git a/sysdeps/i386/fpu/s_tan.S b/sysdeps/i386/fpu/s_tan.S
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index 0000000000..7b3547af4c
--- /dev/null
+++ b/sysdeps/i386/fpu/s_tan.S
@@ -0,0 +1,30 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: s_tan.S,v 1.5 1995/05/09 00:30:00 jtc Exp $")
+
+ENTRY(__tan)
+	fldl	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 (__tan)
+weak_alias (__tan, tan)