os_cpu_c.c.bak

来自「采用C++改写的uCOS-II,目标系统为MSP430系列CPU。」· BAK 代码 · 共 48 行

#define  OS_CPU_GLOBALS
#include "..\ucosii\ucos_ii.h"

/*
*******************************************************************************
*                                    堆栈初始化函数                           *
*******************************************************************************
*/
OS_STK *OSTaskStkInit (void (*task)(void *pd), void *p_arg, OS_STK *ptos, INT16U opt)
{
    INT16U  *top;


    opt    = opt;                 
    top    = (INT16U *)ptos;
    top--;  
    *top = (INT16U)task;
    top--;
    *top = (INT16U)task;                          /* Interrupt return pointer                          */
    top--;
    *top = (INT16U)0x0008;                        /* Status register                                   */
    top--;
    *top = (INT16U)0x0404;
    top--;
    *top = (INT16U)0x0505;
    top--;
    *top = (INT16U)0x0606;
    top--;
    *top = (INT16U)0x0707;
    top--;
    *top = (INT16U)0x0808;
    top--;
    *top = (INT16U)0x0909;
    top--;
    *top = (INT16U)0x1010;
    top--;
    *top = (INT16U)0x1111;
    top--;
    *top = (INT16U)p_arg;                          /* Pass 'p_arg' through register R12                 */
    top--;
    *top = (INT16U)0x1313;
    top--;
    *top = (INT16U)0x1414;                         
    top--;
    *top = (INT16U)0x1515;
    return ((OS_STK *)top);    
}