Efficient Hardware Looping Units for FPGAs

Provided by: University of Pécs
Topic: Hardware
Format: PDF
Looping operations impose a significant bottleneck to achieving better computational efficiency for embedded applications. To confront this problem in embedded computation either in the form of programmable processors or FSMD (Finite-State Machine with Datapath) architectures, the use of customized loop controllers has been suggested. In this paper, a thorough examination of zero-cycle overhead loop controllers applicable to perfect loop nests operating on multi-dimensional data is presented. The design of such loop controllers is formalized by the introduction of a hardware algorithm that fully automates this task for the spectrum of behavioral as well as generated register-transfer level architectures.

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