ram_vect.s

来自「S64和VS1003的MP3播放实现的源代码/」· S 代码 · 共 38 行

; RAM VECTOR

    
      PRESERVE8
      AREA  RAM_VECTOR, CODE, READONLY
      CODE32
      
VECTOR_IN_RAM
        LDR    PC,_SYSINIT         ; Reset
        B      .                   ; UNDEFINED
        B      .                   ; SWI
        B      .                   ; PREFETCH ABORT
        LDR    PC,_DABORT_HANDLER  ; DATA ABORT
        B      .                   ; RESERVED  
        LDR    PC,_OS_CPU_IRQ_ISR  ; IRQ
        LDR    PC,_OS_CPU_FIQ_ISR  ; FIQ

        ;EXTERN OS_CPU_IRQ_ISR
        ;EXTERN OS_CPU_FIQ_ISR
        EXTERN CPU_IRQ_ISR
        IMPORT SYSINIT  
        IMPORT DABTHANDLER  
_OS_CPU_IRQ_ISR
        ;DCD    OS_CPU_IRQ_ISR
        DCD    CPU_IRQ_ISR
        B      .

_OS_CPU_FIQ_ISR
        ;DCD    OS_CPU_FIQ_ISR
        B      .
    
_SYSINIT 
        DCD    SYSINIT

_DABORT_HANDLER
        DCD    DABTHANDLER

        END