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

/*
 * XXXfvdl might as well split this file.
 */

#include <machine/asm.h>

RCSID("$NetBSD: s_copysign.S,v 1.7 2011/06/18 20:49:26 joerg Exp $")

#ifdef __x86_64__
.Lpos:
        .quad   0x8000000000000000
.Lneg:
        .quad   0x7fffffffffffffff
#endif


ENTRY(copysign)
#ifdef __i386__
        movl    16(%esp),%edx
        andl    $0x80000000,%edx
        movl    8(%esp),%eax
        andl    $0x7fffffff,%eax
        orl     %edx,%eax
        movl    %eax,8(%esp)
        fldl    4(%esp)
#else
        movq    .Lpos(%rip),%xmm2
        movq    .Lneg(%rip),%xmm3
        pand    %xmm2,%xmm1
        pand    %xmm3,%xmm0
        por     %xmm1,%xmm0
#endif
        ret