%T High performance event and I/O handling on the transputer
%A R. G. Harley, D. C. Levy, A. W. M. Hemme, M. R. Webster
%E Hussein S. M. Zedan
%B OUG\-13: Real\-Time Systems with Transputers
%X 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 . 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.
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