s_copysign.S revision 1.7
11.7Sagc/* $NetBSD: s_copysign.S,v 1.7 2003/08/07 16:44:41 agc Exp $ */ 21.6Sthorpej 31.1Sjtc/*- 41.1Sjtc * Copyright (c) 1990 The Regents of the University of California. 51.1Sjtc * All rights reserved. 61.1Sjtc * 71.1Sjtc * This code is derived from software contributed to Berkeley by 81.1Sjtc * the Systems Programming Group of the University of Utah Computer 91.1Sjtc * Science Department. 101.1Sjtc * 111.1Sjtc * Redistribution and use in source and binary forms, with or without 121.1Sjtc * modification, are permitted provided that the following conditions 131.1Sjtc * are met: 141.1Sjtc * 1. Redistributions of source code must retain the above copyright 151.1Sjtc * notice, this list of conditions and the following disclaimer. 161.1Sjtc * 2. Redistributions in binary form must reproduce the above copyright 171.1Sjtc * notice, this list of conditions and the following disclaimer in the 181.1Sjtc * documentation and/or other materials provided with the distribution. 191.7Sagc * 3. Neither the name of the University nor the names of its contributors 201.1Sjtc * may be used to endorse or promote products derived from this software 211.1Sjtc * without specific prior written permission. 221.1Sjtc * 231.1Sjtc * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 241.1Sjtc * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 251.1Sjtc * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 261.1Sjtc * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 271.1Sjtc * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 281.1Sjtc * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 291.1Sjtc * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 301.1Sjtc * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 311.1Sjtc * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 321.1Sjtc * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 331.1Sjtc * SUCH DAMAGE. 341.1Sjtc */ 351.1Sjtc 361.1Sjtc#include <machine/asm.h> 371.1Sjtc 381.1Sjtc;_sccsid: 391.1Sjtc;.asciz "from: @(#)support.s 5.2 (Berkeley) 5/17/90" 401.1Sjtc 411.7SagcRCSID("$NetBSD: s_copysign.S,v 1.7 2003/08/07 16:44:41 agc Exp $") 421.1Sjtc 431.1Sjtc| copysign(x,y) 441.1Sjtc| returns x with the sign of y. 451.1SjtcENTRY(copysign) 461.4Skleink#ifdef __SVR4_ABI__ 471.6Sthorpej tstw %sp@(12) 481.4Skleink jmi Lneg 491.6Sthorpej bclr #31,%sp@(4) 501.6Sthorpej fmoved %sp@(4),%fp0 511.4Skleink rts 521.4SkleinkLneg: 531.6Sthorpej bset #31,%sp@(4) 541.6Sthorpej fmoved %sp@(4),%fp0 551.4Skleink rts 561.4Skleink#else 571.6Sthorpej movl %sp@(4),%d0 581.6Sthorpej movl %sp@(8),%d1 591.6Sthorpej tstw %sp@(12) 601.1Sjtc jmi Lneg 611.6Sthorpej bclr #31,%d0 621.1Sjtc rts 631.1SjtcLneg: 641.6Sthorpej bset #31,%d0 651.1Sjtc rts 661.4Skleink#endif 67