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Automated transformation of algorithms into register-transfer level implementations

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2 Author(s)
Zebo Peng ; Dept. of Comput. & Inf. Sci., Linkoping Univ., Sweden ; Kuchcinski, K.

This paper describes a high-level synthesis system, called CAMAD, for transforming algorithms into hardware implementation structures at register-transfer level. The algorithms are used to specify the behaviors of the hardware to be designed. They are first translated into a formal representation model which is based on timed Petri nets and consists of separate but related descriptions of control and data path. The formal model is used as an intermediate design representation and supports an iterative transformation approach to high-level synthesis. The basic idea is that once the behavioral specification is translated into the initial design representation, it can be viewed as a primitive implementation. Correctness-preserving transformations are then used to successively transform the initial design into an efficient implementation. Selection of transformations is guided by an optimization strategy which makes design decisions concerning operation scheduling, data path allocation, and control allocation simultaneously. The integration of these several synthesis subtasks has resulted in a better chance to reach the globally optimal solution. Experimental results show that our approach produces improved register-transfer designs, especially in the cases when the designed hardware consists of data paths and control logics that are tightly coupled

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Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on  (Volume:13 ,  Issue: 2 )