刚开始学习44b

extern void excEnterUndef(void);
extern void excEnterSwi(void);
extern void excEnterPrefetchAbort(void);
extern void excEnterDataAbort(void);
extern void intEnt(void);

typedef struct {
     UINT32  vector;
     VOIDFUNCPTR  func;
} exc_tbl_t;

#define SYS_EXC_NUM     5
LOCAL exc_tbl_t sysExcTbl[SYS_EXC_NUM] = {
    {S3C_EXC_BASE+0x04,    excEnterUndef},
    {S3C_EXC_BASE+0x08,    excEnterSwi},
    {S3C_EXC_BASE+0x0c,    excEnterPrefetchAbort},
    {S3C_EXC_BASE+0x10,    excEnterDataAbort},
    {S3C_EXC_BASE+0x18,    intEnt}
};

void sysExcTblSet(void)
{
    int i;
   
    for (i = 0; i < SYS_EXC_NUM; ++i) {
       *(UINT32 *)(sysExcTbl[i].vector) = (UINT32)0xe59ff0f4; 
                                                     /* ldr pc, pc + 0xfc */
       *(UINT32 *)(sysExcTbl[i].vector + 0xfc) = (UINT32)(sysExcTbl[i].func);
    }
}

    sysExcTblSet();