用于8位单片机的简易操作系统，代码长度小于2K字节，内存占用一般小于100字节。源代码以Atmel AVR Mega64单片机为例，使用ICC编译器。对源代码作少许修改，可用于其他8位单片机。-This is a simple operating system that targets 8 bit microcontrollers. The code length is less than 2K bytes, occupied RAM is usually less than 100 bytes. This source code works with Atmel AVR Mega64 microcontroller, it can be compiled by ICC compiler. With a little modification the source code can work with other microcontrollers.