Subversion Repositories openrisc_2011-10-31

/*

 * File: exceptions.h

 * Purpose: Generic exception handling for ColdFire processors

 *

 * Notes:

 */

#ifndef _MCF_EXCEPTIONS_H

#define _MCF_EXCEPTIONS_H

#ifdef __cplusplus

extern "C" {

#endif

/***********************************************************************/

/*

 * This is the handler for all exceptions which are not common to all

 * ColdFire Chips.

 *

 * Called by mcf_exception_handler

 *

 */

void derivative_interrupt(unsigned long vector);

/***********************************************************************/

/*

 * This is the exception handler for all  exceptions common to all

 * chips ColdFire.  Most exceptions do nothing, but some of the more

 * important ones are handled to some extent.

 *

 * Called by asm_exception_handler

 */

void mcf_exception_handler(void *framepointer);

/***********************************************************************/

/*

 * This is the assembly exception handler defined in the vector table.

 * This function is in assembler so that the frame pointer can be read

 * from the stack.

 * Note that the way to give the stack frame as argument to the c handler

 * depends on the used ABI (Register, Compact or Standard).

 *

 */

asm void asm_exception_handler(void);

/***********************************************************************/

/* MCF5xxx exceptions table initialization:

 *

 * Set VBR and performs RAM vector table initialization.

 * The following symbol should be defined in the lcf:

 * __VECTOR_RAM

 *

 * _vect is the start of the exception table in the code

 * In case _vect address is different from __VECTOR_RAM,

 * the vector table is copied from _vect to __VECTOR_RAM.

 * In any case VBR is set to __VECTOR_RAM.

 */

void initialize_exceptions(void);

#ifdef __cplusplus

}

#endif

#endif   /* _MCF_EXCEPTIONS_H */