ADS中
// Exception vector
#define pISR_RESET (*(unsigned *)(_ISR_STARTADDRESS+0x0))
#define pISR_UNDEF (*(unsigned *)(_ISR_STARTADDRESS+0x4))
#define pISR_SWI (*(unsigned *)(_ISR_STARTADDRESS+0x8))
#define pISR_PABORT (*(unsigned *)(_ISR_STARTADDRESS+0xc))
#define pISR_DABORT (*(unsigned *)(_ISR_STARTADDRESS+0x10))
#define pISR_RESERVED (*(unsigned *)(_ISR_STARTADDRESS+0x14))
#define pISR_IRQ (*(unsigned *)(_ISR_STARTADDRESS+0x18))
#define pISR_FIQ (*(unsigned *)(_ISR_STARTADDRESS+0x1c))
^ _ISR_STARTADDRESS ; _ISR_STARTADDRESS=0x33FF_FF00
HandleReset # 4
HandleUndef # 4
HandleSWI # 4
HandlePabort # 4
HandleDabort # 4
HandleReserved # 4
HandleIRQ # 4
HandleFIQ # 4
----------------------在入口处放置中断跳转向量表
__ENTRY
ResetEntry
;1)The code, which converts to Big-endian, should be in little endian code.
;2)The following little endian code will be compiled in Big-Endian mode.
; The code byte order should be changed as the memory bus width.
;3)The pseudo instruction,DCD can''t be used here because the linker generates error.
ASSERT :DEF:ENDIAN_CHANGE
[ ENDIAN_CHANGE
ASSERT :DEF:ENTRY_BUS_WIDTH
[ ENTRY_BUS_WIDTH=32
b ChangeBigEndian ;DCD 0xea000007
]
[ ENTRY_BUS_WIDTH=16
andeq r14,r7,r0,lsl #20 ;DCD 0x0007ea00
]
[ ENTRY_BUS_WIDTH=8
streq r0,[r0,-r10,ror #1] ;DCD 0x070000ea
]
|
b ResetHandler
]
b HandlerUndef ;handler for Undefined mode
b HandlerSWI ;handler for SWI interrupt
b HandlerPabort ;handler for PAbort
b HandlerDabort ;handler for DAbort
b . ;reserved
b HandlerIRQ ;handler for IRQ interrupt
b HandlerFIQ ;handler for FIQ interrupt
在MMU映射时候有
MMU_SetMTT(0x00000000,0x03f00000,(int)__ENTRY,RW_CB); //bank0,
从这里楼主可以看出一些端倪了。ENTRY，但是在RObase等设置里面ENTRY是等于0x30000000的
把物理地址0映射到0x30000000的。这就是中断向量表说放置的位置了。
其实后来访问的都是虚拟地址了。我们要转换观念，不要老想着物理地址那里。
至于eboot 我想也会类似。只是我还没有看完，明天我会再看一下。
今天有事出去，晚了。现在该sleep了。
模拟电子