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Z80是一种典型的8位机。由于它的功能较强,成本低,在自动化仪表装置、工业控制中有着极广泛的应用。16位微机系统的发展已经把8位微机系统(如以Z80为CPU的TRS-80)淘汰了。在这种情况下,开发Z80系统就遇到了困难——没有现成的16位机系统可直接用来开发Z80软件。虽然市面上推出了各种各样的Z80开发系统,但这些开发系统基本上是硬件的在线仿真,即使用一个完整的Z80系统(包括Z80CPU,存贮器、接口)通过与宿主机的通讯完成调试
Z80 is a typical 8-bit machine. Because of its strong function, low cost, in the automation instrumentation, industrial control has a very wide range of applications. The development of 16-bit microcomputer systems has eliminated 8-bit microcomputer systems (such as the TRS-80 with the Z80 CPU). In this case, the development of the Z80 system has encountered difficulties - there is no off-the-shelf 16-bit machine system can be used directly to develop Z80 software. Although a variety of Z80 development systems are available in the market, these development systems are basically hardware in-circuit simulations that use a complete Z80 system (including the Z80 CPU, memory, and interface) to communicate with the host computer debugging