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 "finitef.s" 30 31#include "libm.h" 32 33 ENTRY(finitef) 34 movl 4(%esp),%eax / eax <-- x 35 notl %eax / not(bexp) = 0 iff bexp = all 1's 36 andl $0x7f800000,%eax / ZF <-- 1 iff not(bexp) = 0 37 jz .done / no jump if arg. is finite 38 movl $1,%eax / %ax was 0; ansi needs %eax = 1 39.done: 40 ret 41 .align 4 42 SET_SIZE(finitef) 43