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本文描述了一个多微机系统的通信软件核心。核心的结构是层次型的。共分四层:即与硬件有关的低级原语层;与控制和操作有关的高级原语层和消息块传送层;核心与用户界面是消息传送层。整个系统对用户是透明的,消息的传输机制是块传送方式。本核心首先在单机(TRS—80)上进行了调试,然后移植到一个由三台TP—801机搭成的总线式系统中。试验证明:本系统是成功的文中先叙述了设计目的和系统概貌,然后分层描述了核心各层的重要原语和程序,最后给出了一些测试数据和对系统的初步性能分析。
This article describes the communication software core of a multi-computer system. The core structure is hierarchical. Divided into four layers: the hardware-related low-level primitive layer; control and operation-related high-level primitive layer and message block transport layer; core and user interface is the messaging layer. The entire system is transparent to users, the message transmission mechanism is block delivery. The core was first debugged on a standalone (TRS-80) and then ported to a bus system consisting of three TP-801 units. The experiment proves that the system is successful, the design purpose and the system overview are described first, and then the important primitives and procedures of the core layers are described hierarchically. Finally, some test data and the preliminary performance analysis of the system are given.