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simh.simh/sigma/sigma_bugs.txt
ken rector 93fe10c1e2 SIGMA: 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.
2024-03-20 09:13:38 -10:00

10 KiB