5980be9b3c
This work is based in part on code from NetBSD libm, libc and kernel. The library is partly public domain and partly BSD-style licensed.
38 lines
566 B
ArmAsm
38 lines
566 B
ArmAsm
/*
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* Written by J.T. Conklin <jtc@NetBSD.org>.
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* Public domain.
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*/
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#include <machine/asm.h>
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/*
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* XXXfvdl split this file.
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*/
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RCSID("$NetBSD: s_copysignf.S,v 1.7 2011/06/21 21:52:49 joerg Exp $")
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#ifdef __x86_64__
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.Lneg:
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.long 0x7fffffff
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.Lpos:
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.long 0x80000000
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#endif
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ENTRY(copysignf)
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#ifdef __i386__
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movl 8(%esp),%edx
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andl $0x80000000,%edx
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movl 4(%esp),%eax
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andl $0x7fffffff,%eax
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orl %edx,%eax
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movl %eax,4(%esp)
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flds 4(%esp)
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#else
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movss .Lpos(%rip),%xmm2
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movss .Lneg(%rip),%xmm3
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pand %xmm2,%xmm1
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pand %xmm3,%xmm0
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por %xmm1,%xmm0
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#endif
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ret
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