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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
.text
.globl microblaze_disable_interrupts
.ent microblaze_disable_interrupts
.align 2
microblaze_disable_interrupts:
#Make space on stack for a temporary
addi r1, r1, -4
#Save register r12
swi r12, r1, 0
#Read the MSR register
mfs r12, rmsr
#Clear the interrupt enable bit
andi r12, r12, ~2
#Save the MSR register
mts rmsr, r12
#Load register r12
lwi r12, r1, 0
#Return
rtsd r15, 8
#Update stack in the delay slot
addi r1, r1, 4
.end microblaze_disable_interrupts
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