int.s

已移植到TI OMAP1610处理器的Nucleus操作系统源码

;************************************************************************
;*                                                                       
;*               Copyright Mentor Graphics Corporation 2002              
;*                         All Rights Reserved.                          
;*                                                                       
;* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS  
;* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS   
;* SUBJECT TO LICENSE TERMS.                                             
;*                                                                       
;************************************************************************
;************************************************************************
;*                                                                       
;* FILE NAME                              VERSION                        
;*                                                                       
;*      int.s                   Nucleus PLUS\ARM925\Code Composer 1.14.1 
;*                                                                       
;* COMPONENT                                                             
;*                                                                       
;*      IN - Initialization                                              
;*                                                                       
;* DESCRIPTION                                                           
;*                                                                       
;*      This file contains the target processor dependent initialization 
;*      routines and data.                                               
;*                                                                       
;* DATA STRUCTURES                                                       
;*                                                                       
;*      INT_Vectors                         Interrupt vector table       
;*                                                                       
;* FUNCTIONS                                                             
;*                                                                       
;*      INT_Initialize                      Target initialization        
;*      INT_Vectors_Loaded                  Returns a NU_TRUE if all the 
;*                                            default vectors are loaded 
;*      INT_Setup_Vector                    Sets up an actual vector     
;*                                                                       
;* DEPENDENCIES                                                          
;*                                                                       
;*      nucleus.h                           System constants             
;*                                                                       
;* HISTORY                                                               
;*                                                                       
;*         NAME            DATE                    REMARKS               
;*                                                                       
;*      B. Ronquillo     08-28-2002           Released version 1.14.1     
;*                                                                       
;************************************************************************
;******************************
;* INCLUDE ASSEMBLY CONSTANTS *
;******************************
    .include "D:\XWproject\Nucleus\source\Plus\Demo\asm_defs.inc" 

	.state32

;**********************************
;* EXTERNAL VARIABLE DECLARATIONS *
;**********************************
; Define the global data structures that need to be initialized by this
; routine.  These structures are used to define the system timer management
; HISR.

;extern VOID        *TCT_System_Limit
;extern VOID        *TMD_HISR_Stack_Ptr;
;extern UNSIGNED    TMD_HISR_Stack_Size;
;extern INT         TMD_HISR_Priority;
;extern VOID        *TCD_System_Stack;

    .ref    _TCT_System_Limit
    .ref    _TMD_HISR_Stack_Ptr
    .ref    _TMD_HISR_Stack_Size
    .ref    _TMD_HISR_Priority
    .ref    _TCD_System_Stack

; Linker produced symbols

    .ref    cinit
    .ref    _ld_bss_start
    .ref    _ld_bss_end

;**********************************
;* EXTERNAL FUNCTION DECLARATIONS *
;**********************************
; Define extern function references.

;VOID   INC_Initialize(VOID *first_available_memory);
;VOID   TCT_Interrupt_Context_Save(VOID);
;VOID   TCT_Interrupt_Context_Restore(VOID);
;VOID   TCC_Dispatch_LISR(INT vector_number);
;VOID   TMT_Timer_Interrupt(void);
;VOID   SDC_LISR(INT vector);

    .ref    _INC_Initialize
    .ref    _TCT_Interrupt_Context_Save
    .ref    _TCT_Interrupt_Context_Restore
    .ref    _TCC_Dispatch_LISR
    .ref    _TMT_Timer_Interrupt

    .if $$isdefed("NU_FIQ_DEMO")
    .ref    _FIQ_LISR
    .endif


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;	merging from intvecs_16.asm ;;;;;;;;;;;;;;;;
		.global $INT_SetSupervisor
		.global $INT_SetUser        
        .global $INT_EnableIRQ
        .global $INT_EnableFIQ
        .global $INT_SetIRQBit
        .global $INT_ClearIRQBit
		.global $INT_SetFIQBit
        .global $INT_ClearFIQBit
	
		.global $INT_Set_SVC_Stack
		.global $INT_Set_Abort_Stack
		.global $INT_Set_Udef_Stack
		.global $INT_DisableFIQIRQ
		.global $INT_RestoreFIQIRQ
;;;;;;;;;;;;;;;;;;;	end of merge ;;;;;;;;;;;;;;;;


;**********************************
;* GLOBAL VARIABLE DECLARATIONS   *
;**********************************
.bss

;INT    INT_Loaded_Flag

    .def  INT_Loaded_Flag
INT_Loaded_Flag
    .word    00000000h


;**********************************
;* SYSTEM STACK DECLARATIONS      *
;**********************************
    .sect   "system_stack"
    .align  4

    .def    INT_System_Stk_Limit
INT_System_Stk_Limit

    .space  SYSTEM_STACK_SIZE

    .align  4

    .def    INT_System_Stack_SP
INT_System_Stack_SP

;**********************************
;* IRQ STACK DECLARATIONS         *
;**********************************
    .sect   "irq_stack"
    .align  4

    .space  IRQ_STACK_SIZE

    .align  4

    .def    INT_IRQ_Stack_SP
INT_IRQ_Stack_SP

;**********************************
;* FIQ STACK DECLARATIONS         *
;**********************************
    .sect   "fiq_stack"
    .align  4

    .space  FIQ_STACK_SIZE

    .align  4

    .def    INT_FIQ_Stack_SP
INT_FIQ_Stack_SP


;**********************************
;* TIMER HISR STACK DECLARATION   *
;**********************************
    .sect   "hisr_stack"
    .align  4

    .def    INT_HISR_Stack_Mem
INT_HISR_Stack_Mem

    .space  HISR_STACK_SIZE

;**********************************
;* AVAILABLE MEMORY DECLARATION   *
;**********************************
    .sect   "avail_memory"
    .align  4
    
    .space  4

    .def    INT_First_Avail_Mem
INT_First_Avail_Mem

;**********************************
;* VECTOR TABLE                   *
;**********************************
    .sect "vectors"

    .def    INT_Vectors
INT_Vectors
;    .if $$isdefed("NU_ROM_SUPPORT")
;    .ref    INT_Reset
;     B      INT_Reset                           ; Flash Hardware Reset
;    .else
     LDR    pc, INT_Initialize_Addr             ; Reset
;    .endif
     LDR    pc, INT_Undef_Inst_Addr             ; Undefined Instruction
     LDR    pc, INT_Software_Addr               ; Software Generated
     LDR    pc, INT_Software_Addr               ; Software Generated
     LDR    pc, INT_Data_Abort_Addr             ; Data Abort
     LDR    pc, INT_Reserved_Addr               ; Reserved
     LDR    pc, INT_IRQ_Addr                    ; Standard External Interrupt
     LDR    pc, INT_FIQ_Addr                    ; Fast External Interrupt


INT_Initialize_Addr
        .word   _INT_Initialize
INT_Undef_Inst_Addr
        .word   _INT_Undef_Inst
INT_Software_Addr
        .word   _INT_Software
INT_Prefetch_Abort_Addr
        .word   _INT_Prefetch_Abort
INT_Data_Abort_Addr
        .word   _INT_Data_Abort
INT_Reserved_Addr
        .word   _INT_Reserved
INT_IRQ_Addr
        .word   _INT_IRQ
INT_FIQ_Addr
        .word   _INT_FIQ

; Define vector table used by INT_IRQ to branch to necessary ISR
INT_IRQ_Vectors:
    .word     _INT_IRQ_2                      ; Vector 0
    .word     INT_Interrupt_Shell             ; Vector 1
    .word     INT_Interrupt_Shell             ; Vector 2
    .word     INT_Interrupt_Shell             ; Vector 3
    .word     INT_Interrupt_Shell             ; Vector 4
    .word     INT_Interrupt_Shell             ; Vector 5
    .word     INT_Interrupt_Shell             ; Vector 6
    .word     INT_Interrupt_Shell             ; Vector 7
    .word     INT_Interrupt_Shell             ; Vector 8
    .word     INT_Interrupt_Shell             ; Vector 9
    .word     INT_Interrupt_Shell             ; Vector 10
    .word     INT_Interrupt_Shell             ; Vector 11
    .word     INT_Interrupt_Shell             ; Vector 12
    .word     INT_Interrupt_Shell             ; Vector 13
    .word     INT_Interrupt_Shell             ; Vector 14
    .word     INT_Interrupt_Shell             ; Vector 15
    .word     INT_Interrupt_Shell             ; Vector 16
    .word     INT_Interrupt_Shell             ; Vector 17
    .word     INT_Interrupt_Shell             ; Vector 18
    .word     INT_Interrupt_Shell             ; Vector 19
    .word     INT_Interrupt_Shell             ; Vector 20