The structured computer-aided logic design (SCALD) software was a computer aided design system developed for building the S-1 computer. It used the
Stanford University
Leland Stanford Junior University, commonly referred to as Stanford University, is a Private university, private research university in Stanford, California, United States. It was founded in 1885 by railroad magnate Leland Stanford (the eighth ...
Drawing System (SUDS), and it was developed by Thomas M. McWilliams and Lawrence Curtis Widdoes, Jr. The work led to the start of the
Valid Logic Systems
Cadence Design Systems, Inc. (stylized as cādence)Investor's Business DailCEO Lip-Bu Tan Molds Troubled Cadence Into Long-Term LeaderRetrieved November 12, 2020 is an American multinational technology and computational software company. Headqua ...
company (briefly known as SCALD Corporation) in 1981, which was purchased by
Cadence Design in 1991.
McWilliams and Widdoes won the
W. Wallace McDowell Award in 1984 for the SCALD methodology.
See also
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Static timing analysis
Static timing analysis (STA) is a simulation method of computing the expected timing of a synchronous digital circuit without requiring a simulation of the full circuit.
High-performance integrated circuits have traditionally been characteri ...
References
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Electronic design automation
Lawrence Livermore National Laboratory
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