bsp_irq_asm.s

来自「RTEMS (Real-Time Executive for Multiproc」· S 代码 · 共 48 行

/* 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:[e-mail]
 *
 *  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: bsp_irq_asm.S,v 1.2.4.1 2003/09/04 18:43:44 joel Exp $
 */

#define __asm__
#include  <registers.h>
		
/* 
 * Function to obtain, execute an IT handler and acknowledge the IT 
 */

	.globl ExecuteITHandler
	
ExecuteITHandler :	

  /*
   * Here is the code to execute the appropriate INT handler 
   */
	
	mov pc, r0

#if 0	
/* 
 * Function to acknowledge the IT controller 
 */
	.globl AckControler
	
AckControler:	  

  /*
   * Here is the code to acknowledge the PIC
   */
	
  b	ReturnFromAck		/* return to ISR handler */

#endif