64 lines
2.5 KiB
ArmAsm
64 lines
2.5 KiB
ArmAsm
/* $NetBSD: n_infnan.S,v 1.3 1999/07/02 15:37:35 simonb 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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
|
|
*/
|
|
.data
|
|
.align 2
|
|
_sccsid:
|
|
.asciz "@(#)infnan.s 1.1 (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
|
|
.text
|
|
.align 1
|
|
.globl _infnan
|
|
.type _infnan,@function
|
|
_infnan:
|
|
.word 0x0
|
|
cmpl 4(ap),$ERANGE
|
|
bneq 1f
|
|
movl $ERANGE,_errno
|
|
brb 2f
|
|
1: movl $EDOM,_errno
|
|
2: emodd $0,$0,$0x8000,r0,r0 # generates the reserved operand fault
|
|
ret
|