BCD码与16进制互转算法

BCD码与16进制互转算法

#include <stdio.h> // HEX转BCD //bcd_data(<0x255,>0) unsigned char BCD2HEX(unsigned int bcd_data) { unsigned char temp; temp=((bcd_data>>8)*100)|((bcd_data>>4)*10)|(bcd_data&0x0f); return temp; } // HEX转BCD //hex_data(<0xff,>0) unsigned int HEX2BCD(unsigned char hex_data) { unsigned int bcd_data; unsigned char temp; temp=hex_data%100; bcd_data=((unsigned int)hex_data)/100<<8; bcd_data=bcd_data|temp/10<<4; bcd_data=bcd_data|temp%10; return bcd_data; } int main(void) { unsigned int temp,temp1; temp = BCD2HEX(11); temp1 = HEX2BCD(0xb); printf("temp:0x%x\n",temp); //BCD码就是十进制数的二进制数 printf("temp1:0x%x\n",temp1); return 0 ; }

运行结果：

temp:0xb temp1:0x11