os_cpu_c.c

在C8051F120内移植uCOS-II

#define  OS_CPU_GLOBALS

//=======================================================================
// header file
#include "includes.h"
//=======================================================================
// system SP Start address
INT8U data   STKStart;
INT8U data   TickTimeInit;
//=======================================================================
OSTaskStkInit
	(	
	void   (*task)(void *pd), // point to function
	void   *pdato, 
	OS_STK *pbos, 
	INT16U opt
	)reentrant
{
    OS_STK *stk;        
    
	stk  = pbos;

	//simulated hardware stack
    *stk++   = 0x12;
	*stk++   = ((INT16U)task & 0x00FF);//* PCL
	*stk++   = ((INT16U)task >> 8);	   //* PCH
	*stk++   = 0x00;			   //* PSW
	*stk++   = 0x0a;			   //* ACC  
    *stk++   = 0x0b;			   //* B
    *stk++   = 0x00;               //* DPH
    *stk++   = 0x00;               //* DPL
    *stk++   = 0x00;			   //* R0
    *stk++   = (OS_STK)((INT16U)pdato);   //* R1:pointer of parameter-LSB
    *stk++   = (OS_STK)((INT16U)pdato>>8);//* R2:pointer of parameter-MSB
    *stk++   = 0x00;			   //* R3     R3:type of pointer
    *stk++   = 0x04;			   //* R4
	*stk++   = 0x05;			   //* R5
	*stk++   = 0x06;			   //* R6
	*stk++   = 0x07;			   //* R7 
    *stk++   = 0xFF;			   //* ?C_IBP
	*stk++   = (OS_STK)(opt>>8);   //* Pointer of Simulated stack's top  
	*stk++   = (OS_STK)(opt&0xFF);

	//simulated software stack
	stk=(OS_STK xdata *)opt;
    *stk     = 0x01;        //* Zero length of simulated stack 	
	
}
//=======================================================================
void TimeTickConfig(void)
{
    TickTimeInit = OS_TICK_TIME;
    TMOD &= 0xf0;
    TMOD |= 0x01;
    TH0 = 0x3c;
    TH0 = 0xb0;
    TR0 = 1;
    ET0 = 1;
}
//-----------------------------------------------------------------------
void TickTime(void)
{
   TickTimeInit = OS_TICK_TIME; 
} 
//-----------------------------------------------------------------------
//=======================================================================
#if USE_Pre_ExternInt0
void ExternInt0(void)
{

}
#endif
//-----------------------------------------------------------------------
#if USE_Pre_ExternInt1
void ExternInt1(void)
{

}
#endif
//-----------------------------------------------------------------------
#if USE_Pre_TimeInt1
void Time1Int(void)
{

}
#endif
//-----------------------------------------------------------------------
#if USE_Pre_SeryInt
void SeryInt(void)
{

}
#endif
//=======================================================================
void OSTCBSWHook(void)
{
     OSTCBCur  = OSTCBHighRdy;
     OSPrioCur = OSPrioHighRdy;
}
//-----------------------------------------------------------------------
void OSTickISRHook(void)
{
	
}
//-----------------------------------------------------------------------
void OSTaskSwHook (void)
{
;
}
//-----------------------------------------------------------------------
void OSTimeTickHook (void)reentrant
{
}
//-----------------------------------------------------------------------
void OSTaskCreateHook (OS_TCB *ptcb)reentrant
{
    ptcb = ptcb; 
}

//=======================================================================
#if OS_CPU_HOOKS_EN
    
    //--------------------------------------------
    void OSInitHookBegin (void)
    {
    }

    //--------------------------------------------
    void OSInitHookEnd (void)
    {
    }
    
    //--------------------------------------------
    void OSTaskDelHook (OS_TCB *ptcb)
    {
        ptcb = ptcb;  
    }
    
    //--------------------------------------------
    void OSTaskStatHook (void)
    {
    }
    
    //--------------------------------------------
    void OSTCBInitHook (OS_TCB *ptcb)
    {
        ptcb = ptcb;
    }
    
    //--------------------------------------------
    void OSRunningTrue(void)
    {
      OSRunning=TRUE;
    }
#endif