点阵16*16 用154驱动行显示，595驱动列显示 汇编语言-16* 16 dot matrix driver with 154 line, 595 column shows the assembly language drivers

128*64点阵液晶驱动程序,用汇编语言实现，程序完整-128* 64 dot matrix LCD driver assembly language,Integrity of the process

AT89C2051针式打印机驱动模块，将2051串口接收到的数据转换后发送到连接打印机的并口上。-AT89C2051 dot matrix printer driver module, after the 2051 serial convert the received data is sent to the printer s parallel port connection.