VHDL程序：直流电机，步进电机，8259等-VHDL program: DC motors, stepper motors, 8259, etc.

用8088/86 控制8259 可编程中断控制器，实现对外部中断的响应和处理。要求程序中对每次中断进行计数，并将计数结果显示在LED 数码管上。-With the 8088/86 control 8259a programmable interrupt controller, to achieve external interrupt response and handling. Requirements for each interrupt the program to count and c