/* $NetBSD: n_infnan.S,v 1.6 2003/08/07 16:44:45 agc Exp $ */ /* * Copyright (c) 1985, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)infnan.s 8.1 (Berkeley) 6/4/93 */ #include <machine/asm.h> .text _sccsid: .asciz "@(#)infnan.s\t1.1 (Berkeley) 8/21/85; 8.1 (ucb.elefunt) 6/4/93" /* * infnan(arg) int arg; * where arg := EDOM if result is NaN * := ERANGE if result is +INF * := -ERANGE if result is -INF * * The Reserved Operand Fault is generated inside of this routine. */ .set EDOM,33 .set ERANGE,34 ENTRY(infnan, 0) cmpl 4(%ap),$ERANGE bneq 1f movl $ERANGE,_C_LABEL(errno) brb 2f 1: movl $EDOM,_C_LABEL(errno) 2: emodd $0,$0,$0x8000,%r0,%r0 # generates the reserved operand fault ret