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Merge pull request #669 from TomHarte/WOZDoc

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Update explanation of NIB processing.
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Thomas Harte 2019-11-05 23:21:25 -05:00 committed by GitHub
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1 changed files with 4 additions and 5 deletions
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9
Storage/Disk/DiskImage/Formats/NIB.cpp
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@ -64,11 +64,10 @@ std::shared_ptr<::Storage::Disk::Track> NIB::get_track_at_position(::Storage::Di
} }
// NIB files leave sync bytes implicit and make no guarantees // NIB files leave sync bytes implicit and make no guarantees
// about overall track positioning. So the approach taken here // about overall track positioning. My current best-guess attempt
// is to look for the epilogue sequence (which concludes all Apple // is to seek sector prologues then work backwards, inserting sync
// tracks and headers), then treat all following FFs as a sync // bits into [at most 5] preceding FFs. This is intended to put the
// region, then switch back to ordinary behaviour as soon as a // Disk II into synchronisation just before each sector.
// non-FF appears.
std::size_t start_index = 0; std::size_t start_index = 0;
std::set<size_t> sync_starts; std::set<size_t> sync_starts;