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Paper Details

High performance event and I/O handling on the transputer

Authors: Harley, R. G., Levy, D. C., Hemme, A. W. M., Webster, M. R.


If transputers are to be used in high performance control applications it is essential that the I/O and event handling capabilities of the transputer are well understood. This requires insight into the hardware architecture and the low level language (guy code) of the transputer. The interface between the transputer executing the corresponding control process, and the external event generating devices can be divided into two main processes, namely interrupt or event handling and the I/O or data handling. For maximum performance these processes must be handled as quickly and efficiently as possible. Some of the issues involved in using occam to establish an interrupt handler are discussed in [1]. This paper extends that work to show how better performance and multiple event handling can be obtained efficiently. Several methods of achieving this real world interface are examined and, based on an actual design, the paper concludes with some recommendations to make the event handler more efficient.


OUG-13: Real-Time Systems with Transputers, Hussein S. M. Zedan, 1990, pp 51 - 60 published by IOS Press, Amsterdam

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