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