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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
*/
#include <config.h>
#include <asm/asm.h>
.text
.global _interrupt_handler
_interrupt_handler:
swi r2, r1, -4
swi r3, r1, -8
swi r4, r1, -12
swi r5, r1, -16
swi r6, r1, -20
swi r7, r1, -24
swi r8, r1, -28
swi r9, r1, -32
swi r10, r1, -36
swi r11, r1, -40
swi r12, r1, -44
swi r13, r1, -48
swi r14, r1, -52
swi r15, r1, -56
swi r16, r1, -60
swi r17, r1, -64
swi r18, r1, -68
swi r19, r1, -72
swi r20, r1, -76
swi r21, r1, -80
swi r22, r1, -84
swi r23, r1, -88
swi r24, r1, -92
swi r25, r1, -96
swi r26, r1, -100
swi r27, r1, -104
swi r28, r1, -108
swi r29, r1, -112
swi r30, r1, -116
swi r31, r1, -120
addik r1, r1, -124
brlid r15, interrupt_handler
nop
nop
addik r1, r1, 124
lwi r31, r1, -120
lwi r30, r1, -116
lwi r29, r1, -112
lwi r28, r1, -108
lwi r27, r1, -104
lwi r26, r1, -100
lwi r25, r1, -96
lwi r24, r1, -92
lwi r23, r1, -88
lwi r22, r1, -84
lwi r21, r1, -80
lwi r20, r1, -76
lwi r19, r1, -72
lwi r18, r1, -68
lwi r17, r1, -64
lwi r16, r1, -60
lwi r15, r1, -56
lwi r14, r1, -52
lwi r13, r1, -48
lwi r12, r1, -44
lwi r11, r1, -40
lwi r10, r1, -36
lwi r9, r1, -32
lwi r8, r1, -28
lwi r7, r1, -24
lwi r6, r1, -20
lwi r5, r1, -16
lwi r4, r1, -12
lwi r3, r1, -8
lwi r2, r1, -4
/* enable_interrupt */
#ifdef XILINX_USE_MSR_INSTR
msrset r0, 2
#else
/* FIXME unstable in stressed mode - two irqs */
nop
addi r1, r1, -4
swi r12, r1, 0
mfs r12, rmsr
ori r12, r12, 2
mts rmsr, r12
lwi r12, r1, 0
addi r1, r1, 4
nop
#endif
bra r14
nop
nop
.size _interrupt_handler,.-_interrupt_handler
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