b data_access
/* Instruction Storage Interrupt */
- START_EXCEPTION(InstructionStorage)
- NORMAL_EXCEPTION_PROLOG
- mr r4,r12 /* Pass SRR0 as arg2 */
- li r5,0 /* Pass zero as arg3 */
- EXC_XFER_EE_LITE(0x0400, handle_page_fault)
+ INSTRUCTION_STORAGE_EXCEPTION
/* External Input Interrupt */
EXCEPTION(0x0500, ExternalInput, do_IRQ, EXC_XFER_LITE)
/* Alignment Interrupt */
- START_EXCEPTION(Alignment)
- NORMAL_EXCEPTION_PROLOG
- mfspr r4,SPRN_DEAR /* Grab the DEAR and save it */
- stw r4,_DEAR(r11)
- addi r3,r1,STACK_FRAME_OVERHEAD
- EXC_XFER_EE(0x0600, AlignmentException)
+ ALIGNMENT_EXCEPTION
/* Program Interrupt */
- START_EXCEPTION(Program)
- NORMAL_EXCEPTION_PROLOG
- mfspr r4,SPRN_ESR /* Grab the ESR and save it */
- stw r4,_ESR(r11)
- addi r3,r1,STACK_FRAME_OVERHEAD
- EXC_XFER_STD(0x700, ProgramCheckException)
+ PROGRAM_EXCEPTION
/* Floating Point Unavailable Interrupt */
EXCEPTION(0x2010, FloatingPointUnavailable, UnknownException, EXC_XFER_EE)
EXCEPTION(0x2020, AuxillaryProcessorUnavailable, UnknownException, EXC_XFER_EE)
/* Decrementer Interrupt */
- START_EXCEPTION(Decrementer)
- NORMAL_EXCEPTION_PROLOG
- lis r0,TSR_DIS@h /* Setup the DEC interrupt mask */
- mtspr SPRN_TSR,r0 /* Clear the DEC interrupt */
- addi r3,r1,STACK_FRAME_OVERHEAD
- EXC_XFER_LITE(0x1000, timer_interrupt)
+ DECREMENTER_EXCEPTION
/* Fixed Internal Timer Interrupt */
/* TODO: Add FIT support */