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open-simh.simh/sigma/sigma_dp.c
ken rector ffe537a621 Fix three kinds of error in I/O modules. Discovered while getting standalone System Exerciser to run. 
IO: DVT_NOTDEV macro incorrect, Device mapping algorithm creates false dispatch points.
This mapped Multi Unit Controller and Single Unit Controller to same device.
DP, DP, MT, RAD:  Test for non-existent device returns wrong status.
DP, DK, MT: TIO status should return non-operational for unattached device.
2024-03-15 13:39:45 -04:00

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