: _wait ( Wait until the lcd is ready to receive a command )
	( When 7th bit is cleared, we can send a new command )
    BEGIN LCD_PORT_CMD PC@ 0x80 AND NOT UNTIL ;
: _cmd LCD_PORT_CMD PC! _wait ;
: _data! LCD_PORT_DATA PC! _wait ;
: _data@ LCD_PORT_DATA PC@ _wait ;
: LCDOFF 0x02 ( CMD_DISABLE ) _cmd ;
: _col! ( col -- )
    0x20 ( CMD_COL ) + _cmd ;
: _row! ( row -- )
    0x80 ( CMD_ROW ) + _cmd ;