1*b6cbf720SGianluca Guida/* $NetBSD: atomic_cas_up.S,v 1.2 2008/05/25 15:56:12 chs Exp $ */ 2*b6cbf720SGianluca Guida 3*b6cbf720SGianluca Guida/*- 4*b6cbf720SGianluca Guida * Copyright (c) 2008 The NetBSD Foundation, Inc. 5*b6cbf720SGianluca Guida * All rights reserved. 6*b6cbf720SGianluca Guida * 7*b6cbf720SGianluca Guida * Redistribution and use in source and binary forms, with or without 8*b6cbf720SGianluca Guida * modification, are permitted provided that the following conditions 9*b6cbf720SGianluca Guida * are met: 10*b6cbf720SGianluca Guida * 1. Redistributions of source code must retain the above copyright 11*b6cbf720SGianluca Guida * notice, this list of conditions and the following disclaimer. 12*b6cbf720SGianluca Guida * 2. Redistributions in binary form must reproduce the above copyright 13*b6cbf720SGianluca Guida * notice, this list of conditions and the following disclaimer in the 14*b6cbf720SGianluca Guida * documentation and/or other materials provided with the distribution. 15*b6cbf720SGianluca Guida * 16*b6cbf720SGianluca Guida * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17*b6cbf720SGianluca Guida * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18*b6cbf720SGianluca Guida * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19*b6cbf720SGianluca Guida * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20*b6cbf720SGianluca Guida * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21*b6cbf720SGianluca Guida * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22*b6cbf720SGianluca Guida * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23*b6cbf720SGianluca Guida * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24*b6cbf720SGianluca Guida * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25*b6cbf720SGianluca Guida * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26*b6cbf720SGianluca Guida * POSSIBILITY OF SUCH DAMAGE. 27*b6cbf720SGianluca Guida */ 28*b6cbf720SGianluca Guida 29*b6cbf720SGianluca Guida#include <sys/ras.h> 30*b6cbf720SGianluca Guida#include "atomic_op_asm.h" 31*b6cbf720SGianluca Guida 32*b6cbf720SGianluca Guida .text 33*b6cbf720SGianluca Guida .set noat 34*b6cbf720SGianluca Guida .set noreorder 35*b6cbf720SGianluca Guida 36*b6cbf720SGianluca GuidaLEAF(_atomic_cas_up) 37*b6cbf720SGianluca Guida .hidden _C_LABEL(_atomic_cas_up) 38*b6cbf720SGianluca GuidaRAS_START_ASM_HIDDEN(_atomic_cas) 39*b6cbf720SGianluca Guida lw t0, (a0) 40*b6cbf720SGianluca Guida nop 41*b6cbf720SGianluca Guida bne t0, a1, 1f 42*b6cbf720SGianluca Guida nop 43*b6cbf720SGianluca Guida sw a2, (a0) 44*b6cbf720SGianluca GuidaRAS_END_ASM_HIDDEN(_atomic_cas) 45*b6cbf720SGianluca Guida j ra 46*b6cbf720SGianluca Guida addu v0, zero, a1 47*b6cbf720SGianluca Guida1: 48*b6cbf720SGianluca Guida j ra 49*b6cbf720SGianluca Guida addu v0, zero, t0 50*b6cbf720SGianluca GuidaEND(_atomic_cas_up) 51