11.9Sisaki/* $NetBSD: s_floor.S,v 1.9 2014/08/10 13:30:43 isaki 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: @(#)floor.s 5.1 (Berkeley) 5/17/90" 401.2Sjtc 411.9SisakiRCSID("$NetBSD: s_floor.S,v 1.9 2014/08/10 13:30:43 isaki Exp $") 421.1Sjtc 431.1Sjtc| floor(x) 441.1Sjtc| the largest integer no larger than x 451.1SjtcENTRY(floor) 461.6Sthorpej fmovel %fpcr,%d0 | save old FPCR 471.6Sthorpej fmoved %sp@(4),%fp0 | get argument 481.1Sjtc fbun Lret | if NaN, return NaN 491.8Sisaki fmovel #0x20,%fpcr | round to -inf 501.9Sisaki fintx %fp0 | truncate 511.6Sthorpej fmovel %d0,%fpcr | restore old FPCR 521.1SjtcLret: 531.4Skleink#ifndef __SVR4_ABI__ 541.6Sthorpej fmoved %fp0,%sp@- 551.6Sthorpej movel %sp@+,%d0 561.6Sthorpej movel %sp@+,%d1 571.4Skleink#endif 581.1Sjtc rts 59