Harnessing parallelism in FPGAs using the hume language
Proceedings of the 1st ACM SIGPLAN workshop on Functional high-performance computing
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We introduce CAPH, a new domain-specific language (DSL) suited to the implementation of stream-processing applications on field programmable gate arrays (FPGA). \caph relies upon the actor/dataflow model of computation. Applications are described as networks of purely dataflow actors exchanging tokens through unidirectional channels. The behavior of each actor is defined as a set of transition rules using pattern matching. The \caph suite of tools currently comprises a reference interpreter and a compiler producing both SystemC and synthetizable VHDL code. We describe the implementation with a preliminary version of the compiler, of a simple real-time motion detection application on a FPGA-based smart camera platform. The language reference manual and a prototype compiler are available from http://wwwlasmea.univ-bpclermont.fr/Personnel/Jocelyn.Serot/caph.html.