/* $NetBSD: s_copysign.S,v 1.10 2014/11/16 16:11:33 joerg Exp $ */ /*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <machine/asm.h> #include <machine/math.h> ;_sccsid: ;.asciz "from: @(#)support.s 5.2 (Berkeley) 5/17/90" RCSID("$NetBSD: s_copysign.S,v 1.10 2014/11/16 16:11:33 joerg Exp $") #if !defined(__HAVE_LONG_DOUBLE) STRONG_ALIAS(_copysignl, copysign) WEAK_ALIAS(copysignl, _copysignl) #endif | copysign(x,y) | returns x with the sign of y. ENTRY(copysign) #ifdef __SVR4_ABI__ tstw %sp@(12) jmi Lneg bclr #31,%sp@(4) fmoved %sp@(4),%fp0 rts Lneg: bset #31,%sp@(4) fmoved %sp@(4),%fp0 rts #else movl %sp@(4),%d0 movl %sp@(8),%d1 tstw %sp@(12) jmi Lneg bclr #31,%d0 rts Lneg: bset #31,%d0 rts #endif |