/* * 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 1.5 2001/06/19 00:26:30 fvdl 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 #if 0 /* * XXXfvdl gas doesn't grok this yet. */ movq .Lpos(%rip),%xmm2 movq .Lneg(%rip),%xmm3 pand %xmm2,%xmm1 pand %xmm3,%xmm0 por %xmm1,%xmm0 #else movsd %xmm0,-8(%rsp) movsd %xmm1,-16(%rsp) movl -12(%rsp),%edx andl $0x80000000,%edx movl -4(%rsp),%eax andl $0x7fffffff,%eax orl %edx,%eax movl %eax,-4(%rsp) movsd -8(%rsp),%xmm0 #endif #endif ret