摘要
利用Z—80CPU输入/输出(I/O)指令的特殊功能,实现一次输出(OUT)一个字(16But),将端口(Part)寻址范围扩大到64K。
By means of the special functions of Z-80 CPU input/output instruction, the output of one word at a time can be realized so as to extend port addressing ranges to 64K.
关键词
端口
寻址
计算机
输入
输出
Port
Addressing
Memory mapped I/O
Indirect addressing
