easy_io.c

凌阳条码扫描程序

#include "SPCE061A.h"
//////////////// Data ///////////////
void Setb(int addr,unsigned int k,unsigned int bit)
   {
   	  int t;
      t=*(unsigned int *)addr;
      if (bit) 
         t=(0x01<<k) | t ; 
      else
         t=(0xffff-(0x01<<k)) & t ; 
      *(unsigned int *)addr=t;  
   }           
////////////////////////////////////