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VIRGO: Hierarchical DSP Code Generator Based on Vectorized Signal Flow Graph Description

Norichika KUMAMOTO, Keiji AOKI, Hiroaki KUNIEDA

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This paper proposes a hierarchical Digital Signal Processor (DSP) Code Generator VIRGO for large scale general signal processing algorithms. Hierarchical structured Vectorized Signal Flow Graph (V-SFG) description is used as input specifications. Ths DSP independent optimization procedure for both the program size and the execution time is performed each module by each hierarchically with regard to operation order, memory assignment and register allocation. The efficient code generation is demonstrated by comparing both instruction steps and dynamic steps of a practical ADPCM encoder/decoder with a conventional method.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E75-A No.8 pp.1004-1013
Publication Date
1992/08/25
Publicized
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DOI
Type of Manuscript
Special Section PAPER (Special Section on the 6th Digital Signal Processing Symposium)
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