os_starthighrdy.asm

来自「ucos2.52在2812上的移植」· 汇编 代码 · 共 18 行

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_OSStartHighRdy:  
	.global _OSStartHighRdy
	.ref   _OSRunning
	.ref   _OSTCBHighRdy		
	
     PUSH    RPC    ;原来没有，有没有好像没什么关系
     MOVW    DP,#_OSRunning              ;OSRunning = 1
     MOV    @_OSRunning,#1
     MOVW    DP,#_OSTCBHighRdy	 ;SP = OSTCBhighRdy->OSTCBStkPtr	
     MOVL    XAR4,@_OSTCBHighRdy   
     MOV     AL,*+XAR4[0]              
     MOV     @SP,AL
     POP     RPC   ;必须有
     IRET

.end