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/* bsp_irq_asm.S
*
* This file contains the implementation of the IRQ handler
* for a specific BSP
*
* CopyRight (C) 2000 Canon Research France SA.
* Emmanuel Raguet, mailto:raguet@crf.canon.fr
*
* The license and distribution terms for this file may be
* found in found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#define __asm__
/*
* Function to obtain, execute an IT handler and acknowledge the IT
*/
.globl bsp_interrupt_dispatch
bsp_interrupt_dispatch :
ldr r0, =0x14400014 /* Read rINTOFFSET */
ldr r1, [r0]
ldr r0, =bsp_vector_table
ldr r0, [r0, r1, LSL #2] /* Read the address */
stmdb sp!,{lr}
ldr lr, =IRQ_return /* prepare the return from handler */
mov pc, r0
IRQ_return:
ldmia sp!,{lr}
mov pc, lr
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