?? s_copysignl.s
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/* * Written by J.T. Conklin <jtc@netbsd.org>. * Changes for long double by Ulrich Drepper <drepper@cygnus.com>. * Adopted for x86-64 by Andreas Jaeger <aj@suse.de>. * Public domain. */#include <machine/asm.h>RCSID("$NetBSD: $")ENTRY(__copysignl) movl 32(%rsp),%edx movl 16(%rsp),%eax andl $0x8000,%edx andl $0x7fff,%eax orl %edx,%eax movl %eax,16(%rsp) fldt 8(%rsp) retEND (__copysignl)weak_alias (__copysignl, copysignl)?? 快捷鍵說(shuō)明
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