{"action":"closed","issue":{"url":"https://api.github.com/repos/simh/simh/issues/592","repository_url":"https://api.github.com/repos/simh/simh","labels_url":"https://api.github.com/repos/simh/simh/issues/592/labels{/name}","comments_url":"https://api.github.com/repos/simh/simh/issues/592/comments","events_url":"https://api.github.com/repos/simh/simh/issues/592/events","html_url":"https://github.com/simh/simh/issues/592","id":335143035,"node_id":"MDU6SXNzdWUzMzUxNDMwMzU=","number":592,"title":"Commit 5a18d314 4/11/2018 (and all following) breaks PDP11 MSCP disk emulation under XXDPv25 O/S","user":{"login":"AK6DN","id":6688402,"node_id":"MDQ6VXNlcjY2ODg0MDI=","avatar_url":"https://avatars1.githubusercontent.com/u/6688402?v=4","gravatar_id":"","url":"https://api.github.com/users/AK6DN","html_url":"https://github.com/AK6DN","followers_url":"https://api.github.com/users/AK6DN/followers","following_url":"https://api.github.com/users/AK6DN/following{/other_user}","gists_url":"https://api.github.com/users/AK6DN/gists{/gist_id}","starred_url":"https://api.github.com/users/AK6DN/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/AK6DN/subscriptions","organizations_url":"https://api.github.com/users/AK6DN/orgs","repos_url":"https://api.github.com/users/AK6DN/repos","events_url":"https://api.github.com/users/AK6DN/events{/privacy}","received_events_url":"https://api.github.com/users/AK6DN/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":4,"created_at":"2018-06-24T01:25:03Z","updated_at":"2018-06-24T15:12:29Z","closed_at":"2018-06-24T15:12:29Z","author_association":"NONE","body":"Commit 8bec55b on 4/10/2018 (and earlier) running MSCP disk emulation on a PDP-11 under the XXDPv25 operating system (a very simple operating system by DEC for running diagnostic tests) worked fine, as shown in the below 'passing' log file.\r\n\r\nStarting with commit 5a18d31 on 4/11/2018, and all following up to most recent on 6/23/2018, MSCP emulation under XXDPv25 operating system is broken. As the failing log shows, the disk image will boot, but then the controller emulation malfunctions, and further accesses to the image (DIR commands) fail.\r\n\r\nControl file:\r\n[foo.ini.txt](https://github.com/simh/simh/files/2130364/foo.ini.txt)\r\n\r\nFailing log file:\r\n[fail.log](https://github.com/simh/simh/files/2130362/fail.log)\r\n\r\nPassing log file:\r\n[pass.log](https://github.com/simh/simh/files/2130363/pass.log)\r\n\r\nMSCP disk image file:\r\n[mscp.zip](https://github.com/simh/simh/files/2130370/mscp.zip)\r\n"}}
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