Implementation Methodology of a High Performance Language System on a Low Price Machine.

UtiLisp系统是在裸机IBM-PC上实现的。通过实现，a)高速系统使用硬件功能；b)在裸机上运行应用程序的方法；被研究。为了在裸机上实现UtiLisp，需要重新编写库例程和系统调用。对显示器、键盘和硬盘的驱动程序进行了编程。还制作了一个简单的文件系统。利用该系统，研究了提高翻译速度的方法。一开始，我们使用网络引导机制开发系统。最终的系统不仅可以通过网络启动，还可以从自己的硬盘启动。我们通过以下步骤实现了该系统。1)取消所有库例程和系统调用的链接。2)编写从不使用Unix系统调用的新库例程（只有少数例外），并在Unix上运行系统。3)编写在裸机上运行的新驱动程序。4)将在步骤2中构建的文件系统移动到裸机。5)在裸机上运行和调试。我们证实，这些步骤使这种实现速度更快，并且对于在裸机上运行应用程序非常有用。

The UtiLisp system was implemented on a bare IBM-PC. Throuth the implementation,a)High speed system using Hardware functions ;b)The methodology to run application programs on a bare machine ;were researched.To implement a UtiLisp on a bare machine, library routines and system calls were newly written. Drivers for a display, keyboard, and hard disk were programmed. Also a simple file system was made.Using this system, the ways to make interpreter fast were investigated.At the beginning, we developed the system using a network booting mechanism. The final system was able to boot not only via a network but also from its own hard disk.We implemented the system by the following steps.1)Unlink all library routines and system calls.2)Make new library routines that never use Unix system calls with a few exception, and run the system on a Unix.3)Program new drivers that run on a bare machine.4)Move the file system, which was built at step 2, to the bare machine.5)Run and debug on a bare machine.We confirmed that these steps make this kind of implementations fast, and are useful to run application programs on a bare machine.