glibc/sysdeps/i386/fpu/s_cosf.S

/*
 * Written by J.T. Conklin <jtc@netbsd.org>.
 * Public domain.
 */

#include <machine/asm.h>

RCSID("$NetBSD: s_cosf.S,v 1.3 1995/05/08 23:55:16 jtc Exp $")

ENTRY(__cosf)
	flds	4(%esp)
	fcos
	fnstsw	%ax
	testl	$0x400,%eax
	jnz	1f
	ret
	.align ALIGNARG(4)
1:	fldpi
	fadd	%st(0)
	fxch	%st(1)
2:	fprem1
	fnstsw	%ax
	testl	$0x400,%eax
	jnz	2b
	fstp	%st(1)
	fcos
	ret
END (__cosf)
weak_alias (__cosf, cosf)