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32 /*****************************************************************************/
35 * @file microblaze_interrupt_handler.c
37 * This file contains the standard interrupt handler for the MicroBlaze processor.
40 * MODIFICATION HISTORY:
43 * ----- -------- -----------------------------------------------
44 * 1.00b 10/03/03 First release
47 ******************************************************************************/
50 /***************************** Include Files *********************************/
52 #include "xil_exception.h"
53 #include "microblaze_interrupts_i.h"
55 /************************** Constant Definitions *****************************/
58 /**************************** Type Definitions *******************************/
61 /***************** Macros (Inline Functions) Definitions *********************/
64 /************************** Function Prototypes ******************************/
66 void __interrupt_handler (void) __attribute__ ((interrupt_handler));
68 /************************** Variable Definitions *****************************/
70 extern MB_InterruptVectorTableEntry MB_InterruptVectorTable;
71 /*****************************************************************************/
74 * This function is the standard interrupt handler used by the MicroBlaze processor.
75 * It saves all volatile registers, calls the users top level interrupt handler.
76 * When this returns, it restores all registers, and returns using a rtid instruction.
90 ******************************************************************************/
91 void __interrupt_handler(void)
93 /* The compiler saves all volatiles and the MSR */
94 MB_InterruptVectorTable.Handler(MB_InterruptVectorTable.CallBackRef);
95 /* The compiler restores all volatiles and MSR, and returns from interrupt */
98 /****************************************************************************/
99 /*****************************************************************************/
102 * Registers a top-level interrupt handler for the MicroBlaze. The
103 * argument provided in this call as the DataPtr is used as the argument
104 * for the handler when it is called.
106 * @param Top level handler.
107 * @param DataPtr is a reference to data that will be passed to the handler
108 * when it gets called.
116 ****************************************************************************/
117 void microblaze_register_handler(XInterruptHandler Handler, void *DataPtr)
119 MB_InterruptVectorTable.Handler = Handler;
120 MB_InterruptVectorTable.CallBackRef = DataPtr;