Expression promotion for hierarchical netlisting

Details Expression promotion for hierarchical netlisting Expression promotion for hierarchical netlisting

1994-04-06

1996-08-20

Trans, Vincent N.

Boots, shoes, and leggings

364488, G06F 1750

Patent

active

055485243

ABSTRACT:
A method for generating hierarchical netlists for gate level or transistor level circuits having instances with properties defined by algebraic expressions. The present invention avoids duplication of instance definitions using a method of expression promotion in a computer aided design system capable of simple parameter passing, whereby expressions are replaced by tokens in the netlist, and moved up the hierarchy to a level where they can be fully evaluated. The present invention also provides a specific embodiment for implementing the expression promotion method used for netlisting.

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patent: 5301318 (1994-04-01), Mittal
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