os_tickisr.asm

来自「把UCOS2移植到TMS320L2812上」· 汇编 代码 · 共 26 行

.page
.text
_OSTickISR:
	.ref _OSTimeTick
    .ref _OSIntNesting
    .ref _OSIntExit
    .ref _PieCtrlRegs
	.global _OSTickISR	

	PUSH RPC
    CLRC      PAGE0,OVM
	
    MOVW      DP,#_PieCtrlRegs+1
    MOV       @_PieCtrlRegs+1,#1
	
	MOVW      DP,#_OSIntNesting     ;提示uc/OS-II 进入中断
    INC       @_OSIntNesting        ; |168|     
    
    
    LCR _OSTimeTick    
    LCR _OSIntExit	
    
 ;   NASP
 	POP  RPC
    IRET
	.end