BCD code to decimal

bcd2dec.c

#include <stdio.h>
unsigned char bcd2dec(unsigned char c);

unsigned char bcd2dec(unsigned char c)
{
	unsigned char dec;

	dec = (c>>4) & 0x07;
	dec = (dec<<3) + (dec<<1) + (c & 0x0F);

	return dec;
}

int main(int argc, const char *argv[])
{
	printf("%u\n", bcd2dec((unsigned char)0x19));
	return 0;
}