small c 编译器的常用工具，比如：编译和链接的提交文件，MAP向SYM的转换文件，库文件管理程序，链接程序，汇编程序，库参考函数-small c compiler commonly used tools, such as: compile and link the submission of documents, MAP conversion to the SYM files, libraries, document management, linker, assembler, library reference function