在ARMSYS上进行uClinux内核移植的总结 （3）

;IRQ ==the program put this phrase to 0xc000000
ExceptionHanlderBegin
b .
ldr pc, MyHandleUndef ; HandlerUndef 
ldr pc, MyHandleSWI ; HandlerSWI 
ldr pc, MyHandlePabort ; HandlerPabort 
ldr pc, MyHandleDabort ; HandlerDAbort
b . ; HandlerReserved
ldr pc, MyHandleIRQ ; HandlerIRQ
ldr pc, MyHandleFIQ ; HandlerFIQ
MyHandleUndef DCD HandleUndef ;reserve a word(32bit)
MyHandleSWI DCD HandleSWI 
MyHandlePabort DCD HandlePabort
MyHandleDabort DCD HandleDabort
MyHandleIRQ DCD HandleIRQ
MyHandleFIQ DCD HandleFIQ
ExceptionHanlderEnd
建立二级矢量表： 
;****************************************************
;* Setup IRQ handler *
;****************************************************
ldr r0,=(_IRQ_BASEADDRESS + 0x100)
ldr r2,=_IRQ_BASEADDRESS
add r3,r0, #0x100 
0 
CMP r0, r3 
STRCC r2, [r0], #4;cc:Carry clear;save R2 to R0 address, R0 =R0+ 4。
BCC %B0
ldr r1,=_IRQ_BASEADDRESS 
ldr r0,=ExceptionHanlderBegin ;if there isn't 'subs pc,lr,#4' at 0x18, 0x1c
ldr r3,=ExceptionHanlderEnd
0 
CMP r0, r3 ;put the vector table at _IRQ_BASEADDRESS(0xc000000)
LDRCC r2, [r0], #4
STRCC r2, [r1], #4
BCC %B0
ldr r1,=DIsrIRQ;put the IRQ judge program at _IRQ_BASEADDRESS+0x80(0xc000080) 
ldr r0,=IsrIRQ ;if there isn't 'subs pc,lr,#4' at 0x18, 0x1c
ldr r3,=IsrIRQEnd
0 
CMP r0, r3
LDRCC r2, [r0], #4
STRCC r2, [r1], #4
BCC %B0
ldr r1, =MyHandleIRQ ;MyHandleIRQ point to DIsrIRQ
ldr r0, =ExceptionHanlderBegin
ldr r4, =_IRQ_BASEADDRESS;
sub r0, r1, r0
add r0, r0,r4
ldr r1, =DIsrIRQ 
str r1, [r0] 
定义Handlexxx：
^ (_IRQ_BASEADDRESS)
HandleReset # 4
HandleUndef # 4
HandleSWI # 4
HandlePabort # 4
HandleDabort # 4
HandleReserved # 4
HandleIRQ # 4
HandleFIQ # 4
^ (_IRQ_BASEADDRESS+0x80)
DIsrIRQ # 4
;IntVectorTable
^ (_IRQ_BASEADDRESS+0x100)
HandleADC # 4
HandleRTC # 4
HandleUTXD1 # 4
HandleUTXD0 # 4
HandleSIO # 4
HandleIIC # 4
HandleURXD1 # 4
HandleURXD0 # 4
HandleTIMER5 # 4
HandleTIMER4 # 4
HandleTIMER3 # 4
HandleTIMER2 # 4
HandleTIMER1 # 4
HandleTIMER0 # 4
HandleUERR01 # 4
HandleWDT # 4
HandleBDMA1 # 4
HandleBDMA0 # 4
HandleZDMA1 # 4
HandleZDMA0 # 4
HandleTICK # 4
HandleEINT4567 # 4
HandleEINT3 # 4
HandleEINT2 # 4
HandleEINT1 # 4
HandleEINT0 # 4

/* ISR */
#define pISR_RESET (*(unsigned *)(_IRQ_BASEADDRESS+0x0))
#define pISR_UNDEF (*(unsigned *)(_IRQ_BASEADDRESS+0x4))
#define pISR_SWI (*(unsigned *)(_IRQ_BASEADDRESS+0x8))
#define pISR_PABORT (*(unsigned *)(_IRQ_BASEADDRESS+0xc))
#define pISR_DABORT (*(unsigned *)(_IRQ_BASEADDRESS+0x10))
#define pISR_RESERVED (*(unsigned *)(_IRQ_BASEADDRESS+0x14))
#define pISR_IRQ (*(unsigned *)(_IRQ_BASEADDRESS+0x18))
#define pISR_FIQ (*(unsigned *)(_IRQ_BASEADDRESS+0x1c))
#define pISR_ADC (*(unsigned *)(_IRQ_BASEADDRESS+0x100))//0x20))
#define pISR_RTC (*(unsigned *)(_IRQ_BASEADDRESS+0x104))//0x24))
#define pISR_UTXD1 (*(unsigned *)(_IRQ_BASEADDRESS+0x108))//0x28))
#define pISR_UTXD0 (*(unsigned *)(_IRQ_BASEADDRESS+0x10c))//0x2c))
#define pISR_SIO (*(unsigned *)(_IRQ_BASEADDRESS+0x110))//0x30))
#define pISR_IIC (*(unsigned *)(_IRQ_BASEADDRESS+0x114))//0x34))
#define pISR_URXD1 (*(unsigned *)(_IRQ_BASEADDRESS+0x118))//0x38))
#define pISR_URXD0 (*(unsigned *)(_IRQ_BASEADDRESS+0x11c))//0x3c))
#define pISR_TIMER5 (*(unsigned *)(_IRQ_BASEADDRESS+0x120))//0x40))
#define pISR_TIMER4 (*(unsigned *)(_IRQ_BASEADDRESS+0x124))//0x44))
#define pISR_TIMER3 (*(unsigned *)(_IRQ_BASEADDRESS+0x128))//0x48))
#define pISR_TIMER2 (*(unsigned *)(_IRQ_BASEADDRESS+0x12c))//0x4c))
#define pISR_TIMER1 (*(unsigned *)(_IRQ_BASEADDRESS+0x130))//0x50))
#define pISR_TIMER0 (*(unsigned *)(_IRQ_BASEADDRESS+0x134))//0x54))
#define pISR_UERR01 (*(unsigned *)(_IRQ_BASEADDRESS+0x138))//0x58))
#define pISR_WDT (*(unsigned *)(_IRQ_BASEADDRESS+0x13c))//0x5c))
#define pISR_BDMA1 (*(unsigned *)(_IRQ_BASEADDRESS+0x140))//0x60))
#define pISR_BDMA0 (*(unsigned *)(_IRQ_BASEADDRESS+0x144))//0x64))
#define pISR_ZDMA1 (*(unsigned *)(_IRQ_BASEADDRESS+0x148))//0x68))
#define pISR_ZDMA0 (*(unsigned *)(_IRQ_BASEADDRESS+0x14c))//0x6c))
#define pISR_TICK (*(unsigned *)(_IRQ_BASEADDRESS+0x150))//0x70))
#define pISR_EINT4567 (*(unsigned *)(_IRQ_BASEADDRESS+0x154))//0x74))
#define pISR_EINT3 (*(unsigned *)(_IRQ_BASEADDRESS+0x158))//0x78))
#define pISR_EINT2 (*(unsigned *)(_IRQ_BASEADDRESS+0x15c))//0x7c))
#define pISR_EINT1 (*(unsigned *)(_IRQ_BASEADDRESS+0x160))//0x80))
#define pISR_EINT0 (*(unsigned *)(_IRQ_BASEADDRESS+0x164))//0x84))

pISR_EINT4567=(int)MEint4567Isr;