125c28e83SPiotr Jasiukajtis/* 225c28e83SPiotr Jasiukajtis * CDDL HEADER START 325c28e83SPiotr Jasiukajtis * 425c28e83SPiotr Jasiukajtis * The contents of this file are subject to the terms of the 525c28e83SPiotr Jasiukajtis * Common Development and Distribution License (the "License"). 625c28e83SPiotr Jasiukajtis * You may not use this file except in compliance with the License. 725c28e83SPiotr Jasiukajtis * 825c28e83SPiotr Jasiukajtis * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 925c28e83SPiotr Jasiukajtis * or http://www.opensolaris.org/os/licensing. 1025c28e83SPiotr Jasiukajtis * See the License for the specific language governing permissions 1125c28e83SPiotr Jasiukajtis * and limitations under the License. 1225c28e83SPiotr Jasiukajtis * 1325c28e83SPiotr Jasiukajtis * When distributing Covered Code, include this CDDL HEADER in each 1425c28e83SPiotr Jasiukajtis * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 1525c28e83SPiotr Jasiukajtis * If applicable, add the following below this CDDL HEADER, with the 1625c28e83SPiotr Jasiukajtis * fields enclosed by brackets "[]" replaced with your own identifying 1725c28e83SPiotr Jasiukajtis * information: Portions Copyright [yyyy] [name of copyright owner] 1825c28e83SPiotr Jasiukajtis * 1925c28e83SPiotr Jasiukajtis * CDDL HEADER END 2025c28e83SPiotr Jasiukajtis */ 2125c28e83SPiotr Jasiukajtis/* 2225c28e83SPiotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 2325c28e83SPiotr Jasiukajtis */ 2425c28e83SPiotr Jasiukajtis/* 2525c28e83SPiotr Jasiukajtis * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 2625c28e83SPiotr Jasiukajtis * Use is subject to license terms. 2725c28e83SPiotr Jasiukajtis */ 2825c28e83SPiotr Jasiukajtis 2925c28e83SPiotr Jasiukajtis .file "finitel.s" 3025c28e83SPiotr Jasiukajtis 3125c28e83SPiotr Jasiukajtis#include "libm.h" 3225c28e83SPiotr Jasiukajtis 3325c28e83SPiotr Jasiukajtis ENTRY(finitel) 3425c28e83SPiotr Jasiukajtis movl 12(%esp),%eax / %ax <-- sign&bexp(x) 3525c28e83SPiotr Jasiukajtis testl $0x80000000,8(%esp) / ZF = 1 iff hi_32(sgnfcnd(x))'s msb = 0 3625c28e83SPiotr Jasiukajtis jz .chk_denormal_or_0 3725c28e83SPiotr Jasiukajtis notl %eax / not(bexp) = 0 iff bexp = all 1's 3825c28e83SPiotr Jasiukajtis andl $0x00007fff,%eax / ZF <-- 1 iff not(bexp) = 0 3925c28e83SPiotr Jasiukajtis jz .done / no jump if arg. is finite 4025c28e83SPiotr Jasiukajtis movl $1,%eax / ansi needs %eax = 1 4125c28e83SPiotr Jasiukajtis.done: 4225c28e83SPiotr Jasiukajtis ret 4325c28e83SPiotr Jasiukajtis 4425c28e83SPiotr Jasiukajtis.chk_denormal_or_0: 4525c28e83SPiotr Jasiukajtis andl $0x00007fff,%eax / ZF <-- 1 iff bexp = 0 iff denormal or 0 4625c28e83SPiotr Jasiukajtis jnz .unsupported / jump if arg has unsupported format 4725c28e83SPiotr Jasiukajtis movl $1,%eax / ansi needs %eax = 1 4825c28e83SPiotr Jasiukajtis ret 4925c28e83SPiotr Jasiukajtis 5025c28e83SPiotr Jasiukajtis.unsupported: 5125c28e83SPiotr Jasiukajtis movl $0,%eax / unsupported format does not represent 5225c28e83SPiotr Jasiukajtis ret / a finite number 5325c28e83SPiotr Jasiukajtis .align 4 5425c28e83SPiotr Jasiukajtis SET_SIZE(finitel) 55