gistfile1.txt

hex2int-asm:
	cpi r24, 'A'
	brlo 0f
	subi r24, 'A' - '0'
0:
	subi r24, '0'
	ret

hex2int-c:
	cpi r24, 'A'
	brsh 0f
	subi r24, '0'
	ret
0f:
	subi r24, 'A' - 10
	ret


uint8_t hex2int(uint8_t c)
{
   if (c < 'A')
   {
      return c - '0';
   }
   else
   {
      return c - 'A' + 10;
   }
}