适用于小空间mcu的移位查表(ntc查表输出温度)

void Temp()
{
    u8 temp,count;
    u16 temp_ad_v;

    temp_ad_v = 4095 - Board_GetAD_12bit(ADC_CH4);

   	temp = 0x00;
   	count = 0x40;   //0x20,MAX:63; 0x40,MAX:127; 0x80,MAX:191(移位超过位数异常)

   	/*
   	0x40|0x20=0x60=96
   	0x40|0x20|0x10=0x70=112
   	0x40|0x20|0x10|0x08|0x04|0x02|0x01=0x7F=127
   	*/
   	while(count)
   	{
   	   	if((count|temp) > 100)
   	   	{
   	   	   	count >>= 1;
   	   	   	continue;
   	   	}
   	   	if(temp_ad_v >= ad_temp_12bit[count|temp])  temp |= count;
   	   	if(temp > 100)  temp = 100;
   	   	count >>= 1;
   	}
   	TempResult = temp;
}

#include <stdio.h>

unsigned int temp,count;
unsigned int Tab[200];

int main()
{
	unsigned int i,value;
	for(i=0;i<200;i++)
	{
		Tab[i] = i;
		printf("%d\r\n",Tab[i]);
	}
	

	value = 0;
	for(i=0;i<200;i++)
	{
		temp = 0x00;
		count = 0x40;
		while(count)
		{
			//printf("count|temp=%d\r\n",count|temp);
//			if((count|temp) > 100)
//			{
//				count >>= 1;
//				continue;
//			}
			if(value >= Tab[(count|temp)])	temp |= count;
//			if(temp > 100) temp = 100;
			count >>= 1;
		}
		printf("value=%d,temp=%d\r\n",value,temp);
		value++;
	}
	return 1;
}