1/* $NetBSD: n_infnan.S,v 1.5 2002/02/24 01:06:21 matt Exp $ */ 2/* 3 * Copyright (c) 1985, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the University of 17 * California, Berkeley and its contributors. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)infnan.s 8.1 (Berkeley) 6/4/93 35 */ 36#include <machine/asm.h> 37 38 .text 39_sccsid: 40 .asciz "@(#)infnan.s\t1.1 (Berkeley) 8/21/85; 8.1 (ucb.elefunt) 6/4/93" 41 42/* 43 * infnan(arg) int arg; 44 * where arg := EDOM if result is NaN 45 * := ERANGE if result is +INF 46 * := -ERANGE if result is -INF 47 * 48 * The Reserved Operand Fault is generated inside of this routine. 49 */ 50 .set EDOM,33 51 .set ERANGE,34 52 53ENTRY(infnan, 0) 54 cmpl 4(%ap),$ERANGE 55 bneq 1f 56 movl $ERANGE,_C_LABEL(errno) 57 brb 2f 581: movl $EDOM,_C_LABEL(errno) 592: emodd $0,$0,$0x8000,%r0,%r0 # generates the reserved operand fault 60 ret 61