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-rw-r--r--cpu/at32ap/entry.S64
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diff --git a/cpu/at32ap/entry.S b/cpu/at32ap/entry.S
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-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * 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 <asm/sysreg.h>
-#include <asm/ptrace.h>
-
- .section .text.exception,"ax"
- .global _evba
- .type _evba,@function
- .align 10
-_evba:
- .irp x,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
- .align 2
- rjmp unknown_exception
- .endr
-
- .global timer_interrupt_handler
- .type timer_interrupt_handler,@function
- .align 2
-timer_interrupt_handler:
- /*
- * Increment timer_overflow and re-write COMPARE with 0xffffffff.
- *
- * We're running at interrupt level 3, so we don't need to save
- * r8-r12 or lr to the stack.
- */
- lda.w r8, timer_overflow
- ld.w r9, r8[0]
- mov r10, -1
- mtsr SYSREG_COMPARE, r10
- sub r9, -1
- st.w r8[0], r9
- rete
-
- .type unknown_exception, @function
-unknown_exception:
- pushm r0-r12
- sub r8, sp, REG_R12 - REG_R0 - 4
- mov r9, lr
- mfsr r10, SYSREG_RAR_EX
- mfsr r11, SYSREG_RSR_EX
- pushm r8-r11
- mfsr r12, SYSREG_ECR
- mov r11, sp
- rcall do_unknown_exception
-1: rjmp 1b