/* * Written by J.T. Conklin <jtc@netbsd.org>. * Public domain. */ #include <machine/asm.h> /* * XXXfvdl split this file. */ RCSID("$NetBSD: s_copysignf.S,v 1.4 2001/06/19 00:26:30 fvdl Exp $") #ifdef __x86_64__ .Lneg: .long 0x7fffffff .Lpos: .long 0x80000000 #endif ENTRY(copysignf) #ifdef __i386__ movl 8(%esp),%edx andl $0x80000000,%edx movl 4(%esp),%eax andl $0x7fffffff,%eax orl %edx,%eax movl %eax,4(%esp) flds 4(%esp) #else #if 0 /* * XXXfvdl gas doesn't grok this. * but it's legal according to the p4 manual. */ movss .Lpos(%rip),%xmm2 movss .Lneg(%rip),%xmm3 pandq %xmm2,%xmm1 pandq %xmm3,%xmm0 porq %xmm1,%xmm0 #else movss %xmm0,-4(%rsp) movss %xmm1,-8(%rsp) movl -8(%rsp),%edx andl $0x80000000,%edx movl -4(%rsp),%eax andl $0x7fffffff,%eax orl %edx,%eax movl %eax,-4(%rsp) movss -4(%rsp),%xmm0 #endif #endif ret