Document Type

Conference Proceeding

Publication Date

10-1996

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Abstract

Goossens defined a structural operational semantics for a subset of VHDL-87 and proved that the parallelism present in VHDL is benign. We extend this work to include shared variables in VHDL-93 that changes the underlying semantic model. In the presence of shared variables, non-deterministic execution of VHDL-93 processes destroys the unique meaning property. We identify and characterize a class of portable VHDL-93 descriptions for which unique meaning property can be salvaged.

Comments

Presented at the VHDL: Multidisciplinary Systems Design and Multimedia Conference, Durham, NC, October 1996.

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