作业帮ucos-ii中的OS_CPU_A.s中的 incl OSRunning语句是什么意思,
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ucos-ii中的OS_CPU_A.s中的 incl OSRunning语句是什么意思,
mov OSTCBHighRdy,%eax //Point to TCB of highest priority task ready to run
mov (%eax),%esp //ESP = OSTCBHighRdy->OSTCBStkPtr
还有下面这些,
//Pop all the processor registers from the stack
popa
//Execute a Return from interrupt intruction;
iret
mov OSTCBHighRdy,%eax //Point to TCB of highest priority task ready to run
mov (%eax),%esp //ESP = OSTCBHighRdy->OSTCBStkPtr
还有下面这些,
//Pop all the processor registers from the stack
popa
//Execute a Return from interrupt intruction;
iret
OSRunning是UCOS系统己经启动的一个标识,它在调用UCOS中的OSStart时被置为TRUE,你可以好好分析一下UCOS的源码,代码不多,很容易分析.