void syb(int a)	//symbol
{
	switch(a)
	{
		case 0:
			chr(0b01111110UL);		//symbol ->
			break;
		case 1:
			chr(0b00111111UL);		//symbol ?
			break;
		case 2:
			chr(0b00100001UL);		//symbol !
			break;
	}
}

    Source: geocities.com/hk/cloud_fan_school/Program/LCD/subroutin

               ( geocities.com/hk/cloud_fan_school/Program/LCD)                   ( geocities.com/hk/cloud_fan_school/Program)                   ( geocities.com/hk/cloud_fan_school)                   ( geocities.com/hk)