Switch-level simulation of VLSI using a special-purpose data-driven computer
DAC '85 Proceedings of the 22nd ACM/IEEE Design Automation Conference
MOSSIM: A switch-level simulator for MOS LSI
DAC '81 Proceedings of the 18th Design Automation Conference
Parallel switch-level simulation for VLSI
EURO-DAC '91 Proceedings of the conference on European design automation
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The HSS is a Hardware Switch level Simulator that has been designed and built to be a useful and cost effective addition to a MOS circuit designers tool set. The HSS is based on the MOSSIM software simulator, but has been further developed to include hardware for simulating pass transistor circuits and for doing timing simulation. By using dynamic RAM for internal list storage, a single HSS processor can accommodate a circuit of up to 262,144 MOS devices. The HSS can be interfaced to a variety of host computers via a general purpose parallel interface, and in its current form offers a 25 times speed improvement compared to MOSSIM II running on a VAX 11-780. Timing mode offers similar speed advantages, with delay calculations that are sufficiently accurate for many simulation tasks.