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/* $OpenBSD: macectrl.S,v 1.6 2009/05/22 20:37:54 miod Exp $ */
/*
* Copyright (c) 2004 Opsycon AB (www.opsycon.se / www.opsycon.com)
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
*/
#include <machine/param.h>
#include <machine/asm.h>
#include <machine/cpu.h>
#include <machine/regnum.h>
#include "assym.h"
.set mips3
.set noreorder # Noreorder is default style!
/*
* Update the HW interrupt mask anding the argument with the
* interrupt mask for enabled interrupts. Only enabled interrupt
* sources can be unmasked.
*/
.globl hw_setintrmask
LEAF(hw_setintrmask, 0)
PTR_L v1, hwmask_addr
lw v0, mace_intem
not a0, a0
beqz v1, 1f # addr not set, skip.
and v0, a0
jr ra
sd v0, 0(v1)
1:
jr ra
nop
END(hw_setintrmask)
.data
.globl hwmask_addr
hwmask_addr: PTR_VAL 0
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