Bob Supnik's V3.12-3 release from http://simh.trailing-edge.com/sources/simhv312-3.zip
open-simh codebase baseline (at fork)
Open SIMH baseline
Development of functionality and features beyond Bob's editing role.
Official Released simh v3.9-0 imported from simhv39-0.zip and documents simhv39-0-doc_masters.zip