1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21/* 22 * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 23 */ 24/* 25 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 26 * Use is subject to license terms. 27 */ 28 29 .file "floor.s" 30 31#include "libm.h" 32LIBM_ANSI_PRAGMA_WEAK(floor,function) 33 34 ENTRY(floor) 35 subl $8,%esp 36 fstcw (%esp) 37 fldl 12(%esp) 38 movw (%esp),%cx 39 orw $0x0c00,%cx 40 xorw $0x0800,%cx 41 movw %cx,4(%esp) 42 fldcw 4(%esp) / set RD = down 43 frndint 44 fstcw 4(%esp) / restore RD 45 movw 4(%esp),%dx 46 andw $0xf3ff,%dx 47 movw (%esp),%cx 48 andw $0x0c00,%cx 49 orw %dx,%cx 50 movw %cx,(%esp) 51 fldcw (%esp) / restore RD 52 addl $8,%esp 53 ret 54 .align 4 55 SET_SIZE(floor) 56