int.h

Scorpio(ARM926EJ) Boot Souce program, the compiler is SDT2.51.

/**************************************************
 *  MODULE : int.h
 *  VERSION : Version 0.1
 *  12/11/2000
 *************************************************/

#define iSRAMBase    0x06000000    // internal SRAM base address
#define iSRAMTop     0x06001FFC    // top address of interanl SRAM
#define eSRAMBase    0x04000000    // external SRAM base address
#define SDRAMBase    0x08000000    // SDRAM address 
#define SDRAMTop     0x08FFFFFC    // top address of SDRAM address

/* the number of interrupt source */
#define NumOfInt	32

/* Interrupt Vector table address */
#define IntVectorTable          iSRAMTop-(NumOfInt << 2)  //internal SRAM area
#define IntVectorTableEnd       iSRAMTop
//#define IntVectorTable          SDRAMTop-(NumOfInt << 2)  //SDRAM area
//#define IntVectorTableEnd       SDRAMTop

/*
 * Interrupt Vector Table
 */
#define pIVT_WDT        (*(volatile unsigned *)(IntVectorTable+0x00))	
#define pIVT_RTC        (*(volatile unsigned *)(IntVectorTable+0x04))
#define pIVT_TIMER0     (*(volatile unsigned *)(IntVectorTable+0x08))
#define pIVT_MAC        (*(volatile unsigned *)(IntVectorTable+0x0C))  //unused item
#define pIVT_TIMER2     (*(volatile unsigned *)(IntVectorTable+0x10))
#define pIVT_TIMER3     (*(volatile unsigned *)(IntVectorTable+0x14))
#define pIVT_EXT0       (*(volatile unsigned *)(IntVectorTable+0x18))
#define pIVT_USB        (*(volatile unsigned *)(IntVectorTable+0x1C))
#define pIVT_UART0      (*(volatile unsigned *)(IntVectorTable+0x20))
#define pIVT_RESV0      (*(volatile unsigned *)(IntVectorTable+0x24))
#define pIVT_LCDC       (*(volatile unsigned *)(IntVectorTable+0x28))
#define pIVT_DMA        (*(volatile unsigned *)(IntVectorTable+0x2C))
#define pIVT_EXT1       (*(volatile unsigned *)(IntVectorTable+0x30))
#define pIVT_TIMER1     (*(volatile unsigned *)(IntVectorTable+0x34))
#define pIVT_PPI        (*(volatile unsigned *)(IntVectorTable+0x38))
#define pIVT_EXT3       (*(volatile unsigned *)(IntVectorTable+0x3C))
#define pIVT_UART1      (*(volatile unsigned *)(IntVectorTable+0x40))
#define pIVT_I2C        (*(volatile unsigned *)(IntVectorTable+0x44))
#define pIVT_COMMRX     (*(volatile unsigned *)(IntVectorTable+0x48))
#define pIVT_COMMTX     (*(volatile unsigned *)(IntVectorTable+0x4C))
#define pIVT_TEAKLITE   (*(volatile unsigned *)(IntVectorTable+0x50))
#define pIVT_KMI0       (*(volatile unsigned *)(IntVectorTable+0x54))
#define pIVT_KMI1       (*(volatile unsigned *)(IntVectorTable+0x58))
#define pIVT_EXT2       (*(volatile unsigned *)(IntVectorTable+0x5C))
#define pIVT_RESV2      (*(volatile unsigned *)(IntVectorTable+0x60))
#define pIVT_RESV3      (*(volatile unsigned *)(IntVectorTable+0x64))
#define pIVT_PCMCIA     (*(volatile unsigned *)(IntVectorTable+0x68))  //unused item
#define pIVT_SMI        (*(volatile unsigned *)(IntVectorTable+0x6C))
#define pIVT_GPIO       (*(volatile unsigned *)(IntVectorTable+0x70))
#define pIVT_RESV4      (*(volatile unsigned *)(IntVectorTable+0x74))
#define pIVT_RESV5      (*(volatile unsigned *)(IntVectorTable+0x78))
#define pIVT_SSP        (*(volatile unsigned *)(IntVectorTable+0x7C))

/*
 *  define the interrupt source corresponing to each interrupt register bits 
 */
#define INT_WDT	        0x00000001	
#define INT_RTC	        0x00000002
#define INT_TIMER0      0x00000004
#define INT_MAC         0x00000008      //unsued item
#define INT_TIMER2      0x00000010
#define INT_TIMER3      0x00000020
#define INT_EXT0        0x00000040
#define INT_USB	        0x00000080
#define INT_UART0       0x00000100
#define INT_RESV0       0x00000200
#define INT_LCDC        0x00000400
#define INT_DMA	        0x00000800
#define INT_EXT1        0x00001000
#define INT_TIMER1      0x00002000
#define INT_PPI         0x00004000
#define INT_EXT3        0x00008000
#define INT_UART1       0x00010000
#define INT_I2C	        0x00020000
#define INT_COMMRX      0x00040000
#define INT_COMMTX      0x00080000
#define INT_TEAKLITE    0x00100000
#define INT_KMI0        0x00200000
#define INT_KMI1        0x00400000
#define INT_EXT2        0x00800000
#define INT_RESV2       0x01000000
#define INT_RESV3       0x02000000
#define INT_PCMCIA      0x04000000      //unused item
#define INT_SMI         0x08000000
#define INT_GPIO        0x10000000
#define INT_RESV4       0x20000000
#define INT_RESV5       0x40000000
#define INT_SSP         0x80000000

#define EnableFIQ()     (rINTCON = ((rINTCON) & (0x0E)))
#define DisableFIQ()    (rINTCON = ((rINTCON) | (0x01)))

#define EnableIRQ()     (rINTCON = ((rINTCON )& (0x0D)))
#define DisableIRQ()    (rINTCON = ((rINTCON) | (0x02)))

#define EnableGMask()   (rINTCON = ((rINTCON) | (0x08)))
#define DisableGMask()  (rINTCON = ((rINTCON) & (0x07)))

#define EnableInt(x)    (rINTMSK = ((rINTMSK) & (~(x))))
#define DisableInt(x)   (rINTMSK = ((rINTMSK) | (x)))