用汇编语言通过串行芯片16550实现的PC通信。-Through the use of assembly language to achieve the 16,550-chip serial communication PC.

Dos下使用串口实现先进先出,支持COM1-COM4- 16550 is a shareware program designed to allow the unlocking of the internal fifo buffer present in the UART chip of the same name. The program will scan all four COM ports (COM1:- COM4