/* * (C) Copyright 2003, Psyent Corporation <www.psyent.com> * Scott McNutt <smcnutt@psyent.com> * * 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 *//************************************************************************* * Exception Vector Table * * This could have gone in the cpu soure tree, but the whole point of * Nios is customization -- and polluting the cpu source tree with * board-specific ifdef's really defeats the purpose, no? With this in * the board-specific tree, each board has the freedom to organize * vectors/traps, etc anyway it wants. The init code copies this table * to the proper location. * * Each board can do what it likes here. But there are four "standard" * handlers availble: * *	_cwp_lolimit	-Handles register window underflows. *	_cwp_hilimit	-Handles register window overflows. *	_timebase_int	-Increments the timebase. *	_brkpt_hw_int	-Hardware breakpoint handler. *	_brkpt_sw_int	-Software breakpoint handler. *	_def_xhandler	-Default exception handler. * * _timebase_int handles a Nios Timer interrupt and increments the * timestamp used for the get_timer(), reset_timer(), etc. routines. It * expects the timer to be configured like the standard-32 low priority * timer. * * _def_xhandler dispatches exceptions/traps via the external_interrupt() * routine. This lets you use the irq_install_handler() and handle your * interrupts/traps with code written in C. ************************************************************************/	.data	.global _vectors	.align	4_vectors:	.long	_def_xhandler@h		/* Vector 0  - NMI */	.long	_cwp_lolimit@h		/* Vector 1  -  underflow */	.long	_cwp_hilimit@h		/* Vector 2  - overflow	*/	.long	_brkpt_hw_int@h		/* Vector 3 - Breakpoint */	.long	_brkpt_sw_int@h		/* Vector 4 - Single step*/	.long	_def_xhandler@h		/* Vector 5 - GNUPro debug */	.long	_def_xhandler@h		/* Vector 6 - future reserved */	.long	_def_xhandler@h		/* Vector 7 - future reserved */	.long	_def_xhandler@h		/* Vector 8 - future reserved */	.long	_def_xhandler@h		/* Vector 9 - future reserved */	.long	_def_xhandler@h		/* Vector 10 - future reserved */	.long	_def_xhandler@h		/* Vector 11 - future reserved */	.long	_def_xhandler@h		/* Vector 12 - future reserved */	.long	_def_xhandler@h		/* Vector 13 - future reserved */	.long	_def_xhandler@h		/* Vector 14 - future reserved */	.long	_def_xhandler@h		/* Vector 15 - future reserved */	.long	_def_xhandler@h		/* Vector 16 */	.long	_def_xhandler@h		/* Vector 17 */	.long	_def_xhandler@h		/* Vector 18 */	.long	_def_xhandler@h		/* Vector 19 */	.long	_def_xhandler@h		/* Vector 20 */	.long	_def_xhandler@h		/* Vector 21 */	.long	_def_xhandler@h		/* Vector 22 */	.long	_def_xhandler@h		/* Vector 23 */	.long	_def_xhandler@h		/* Vector 24 */	.long	_def_xhandler@h		/* Vector 25 */	.long	_def_xhandler@h		/* Vector 26 */	.long	_def_xhandler@h		/* Vector 27 */	.long	_def_xhandler@h		/* Vector 28 */	.long	_def_xhandler@h		/* Vector 29 */	.long	_def_xhandler@h		/* Vector 30 */	.long	_def_xhandler@h		/* Vector 31 */	.long	_def_xhandler@h		/* Vector 32 */	.long	_def_xhandler@h		/* Vector 33 */	.long	_def_xhandler@h		/* Vector 34 */	.long	_def_xhandler@h		/* Vector 35 */	.long	_def_xhandler@h		/* Vector 36 */	.long	_def_xhandler@h		/* Vector 37 */	.long	_def_xhandler@h		/* Vector 38 */	.long	_def_xhandler@h		/* Vector 39 */	.long	_def_xhandler@h		/* Vector 40 */	.long	_def_xhandler@h		/* Vector 41 */	.long	_def_xhandler@h		/* Vector 42 */	.long	_def_xhandler@h		/* Vector 43 */	.long	_def_xhandler@h		/* Vector 44 */	.long	_def_xhandler@h		/* Vector 45 */	.long	_def_xhandler@h		/* Vector 46 */	.long	_def_xhandler@h		/* Vector 47 */	.long	_def_xhandler@h		/* Vector 48 */	.long	_def_xhandler@h		/* Vector 49 */	.long	_timebase_int@h		/* Vector 50 - lopri timer*/	.long	_def_xhandler@h		/* Vector 51 */	.long	_def_xhandler@h		/* Vector 52 */	.long	_def_xhandler@h		/* Vector 53 */	.long	_def_xhandler@h		/* Vector 54 */	.long	_def_xhandler@h		/* Vector 55 */	.long	_def_xhandler@h		/* Vector 56 */	.long	_def_xhandler@h		/* Vector 57 */	.long	_def_xhandler@h		/* Vector 58 */	.long	_def_xhandler@h		/* Vector 59 */	.long	_def_xhandler@h		/* Vector 60 */	.long	_def_xhandler@h		/* Vector 61 */	.long	_def_xhandler@h		/* Vector 62 */	.long	_def_xhandler@h		/* Vector 63 */