Thomas Harte
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acc35885cd
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Attempted to reduce track invalidations.
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2016-12-25 20:38:25 -05:00 |
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Thomas Harte
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beaa868079
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Factored the MFM parser out into encodings.
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2016-12-25 20:00:57 -05:00 |
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Thomas Harte
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1349e85d83
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[Mostly] fixed track write-back.
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2016-12-25 19:19:22 -05:00 |
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Thomas Harte
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007c13ec16
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Fixed: cycles_per_bit_ isn't a function of the rotational multiplier, it's absolute. Also made sure that exactly hitting the end of a bit counts.
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2016-12-25 16:35:39 -05:00 |
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Thomas Harte
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98be6ede45
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Shuffled a little to reduce risk of overflow, ensured writing is a loop, still seem to be writing too quickly for some reason.
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2016-12-25 16:13:05 -05:00 |
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Thomas Harte
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d2ad2c756e
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Added enough shovelling to write rubbish for an entire sector.
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2016-12-25 15:46:49 -05:00 |
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Thomas Harte
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ec55a25620
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It makes sense to simplify these ahead of time.
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2016-12-25 12:32:25 -05:00 |
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Thomas Harte
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aceb7e3b6b
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Started implementing write sector on the 1770, immediately deciding it would be useful to have a callback for end-of-queued-data-written from disk controller. So had a go at implementing that, naively. More investigation required.
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2016-12-25 12:31:38 -05:00 |
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Thomas Harte
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901f19f89c
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Added enough stuff that SSDs attached to a 1770 will now reach the entry point for writing.
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2016-12-25 09:46:12 -05:00 |
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Thomas Harte
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9d555c4a02
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Let's try just declining to pump the PLL while in write mode. Added documentation to explain.
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2016-12-25 09:19:18 -05:00 |
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Thomas Harte
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b57038edc5
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Actually, at least index holes will still be receivable while writing, so this wasn't entirely correct. Probably best to leave it in.
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2016-12-25 09:16:09 -05:00 |
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Thomas Harte
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af69b21033
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This is almost complete, except that it doesn't act appropriately if some bits are written but not enough to cover the entire writing period.
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2016-12-24 22:51:26 -05:00 |
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Thomas Harte
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f601d796f5
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Added documentation.
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2016-12-24 22:37:20 -05:00 |
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Thomas Harte
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6e94d0c19f
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Extended Storage::Disk::Disk to permit write-back of modified tracks, exposed some interface via Storage::Disk::Drive.
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2016-12-24 22:11:31 -05:00 |
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Thomas Harte
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7f303cfceb
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Continued the baby steps.
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2016-12-24 21:54:43 -05:00 |
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Thomas Harte
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afc6f4129c
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Withdrew unused tally.
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2016-12-24 21:47:57 -05:00 |
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Thomas Harte
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1e416d4af0
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Withdrew now-unused and never-implemented API from TimedEventLoop, and the redundant track time count from DiskController.
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2016-12-24 21:02:10 -05:00 |
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Thomas Harte
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bedea48d03
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This is a much better way of dealing with being partway into an incoming event. Subject to eliminating overruns, of course.
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2016-12-24 20:54:27 -05:00 |
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Thomas Harte
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4cb17143ef
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Messing around trying to lock down timing precisely. Which includes formal initial conditions.
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2016-12-24 15:18:46 -05:00 |
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Thomas Harte
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1e970a9772
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Started stepping slowly towards allowing writing on the disk controller, taking the opportunity to introduce self-simplifying behaviour to Storage::Time.
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2016-12-24 13:07:23 -05:00 |
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Thomas Harte
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e4e0347638
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Attempted to consolidate some of the repetition.
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2016-12-21 22:17:00 -05:00 |
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Thomas Harte
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03579f33f1
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Fixed multi-coverage insertion, via an appropriate test.
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2016-12-20 21:38:32 -05:00 |
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Thomas Harte
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7eca910cc5
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Fixed insertion location finding logic, working on the relevant test.
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2016-12-20 21:14:05 -05:00 |
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Thomas Harte
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823ab9bc34
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Completed initial non-trivial test, fixing revealed errors.
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2016-12-20 19:15:36 -05:00 |
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Thomas Harte
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5a508ea0df
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Attempted properly to cover the exactly-equal starts and ends cases, and to improve meaning.
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2016-12-20 18:32:49 -05:00 |
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Thomas Harte
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63d861a2f3
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Switched from C-in-the-brain manual offset counting to using iterators like an ordinary C++ person.
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2016-12-20 18:17:54 -05:00 |
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Thomas Harte
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6f17076003
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Switched to much more logical shared_ptr ownership of PCMSegmentEventSources by Periods.
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2016-12-20 18:13:10 -05:00 |
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Thomas Harte
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497b2ae4dd
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Still by manual inspection: the time for the next event should be provisional until proven acceptable, allowing a proper measurement of time until exiting the period to be taken; also fixed the accumulated period error when seeking back onto the underlying track.
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2016-12-20 08:14:16 -05:00 |
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Thomas Harte
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6bdde542c5
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Edging towards functioning automatic tests, fixed right-period adjustment and slightly decreased searching cost while in the process of adding a test.
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2016-12-20 07:52:14 -05:00 |
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Thomas Harte
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ec624eaab1
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Made an attempt fully to implement PCMPatchedTrack. Which now requires tests.
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2016-12-20 07:30:57 -05:00 |
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Thomas Harte
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1ef1f6ec69
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Attempted to implemnt seek_to and to finish add_segment. Started doing a little of get_next_event but ran out of time for the day.
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2016-12-19 21:46:02 -05:00 |
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Thomas Harte
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8f937ceac8
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Made an attempt to come up with a data structure that actually makes sense (though perhaps this is textbook list rather than vector stuff? I guess it depends on the frequency I expect inserts to occur versus reads) and to implement inserts. Though the Periods aren't yet honoured.
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2016-12-19 07:42:43 -05:00 |
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Thomas Harte
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e081f224b6
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Implemented a very basic PCMTrack test, nevertheless revealing an oversight in PCMSegmentEventSource related to improperly counting to the index hole if the final bit is set. Took that as a message that I should comment and document the event source.
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2016-12-18 22:53:24 -05:00 |
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Thomas Harte
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a6354ebb01
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Reimplemented PCMTrack to use PCMSegmentEventSource, eliminating code duplication.
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2016-12-18 21:37:05 -05:00 |
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Thomas Harte
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f9a5595dad
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Added seeking tests, correcting such errors as uncovered.
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2016-12-18 10:19:24 -05:00 |
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Thomas Harte
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3297f6d545
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Made an attempt to implement seek_to on PCMSegmentEventSource, taking account of off-by-half counting.
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2016-12-17 22:44:33 -05:00 |
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Thomas Harte
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3116a2cf4c
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Realised I was actually testing PCMSegmentEventSource, not PCMSegment; implemented a spread of tests; hence fixed PCMSegmentEventSource.
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2016-12-17 21:47:13 -05:00 |
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Thomas Harte
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254cc41fd6
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Made an attempt to separate and isolate the stuff of creating flux events from a PCMSegment, eventually to factor that out of PCMTrack and make it available also to PCMPatchedTrack.
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2016-12-17 21:13:57 -05:00 |
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Thomas Harte
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313db75303
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Ensured the patchable track owns its underlying track.
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2016-12-17 18:17:22 -05:00 |
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Thomas Harte
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f1a08b7ab5
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Opted to pass times by reference and added enough to PCMPatchedTrack that it could start being used by the disk controller, albeit that it doesn't work.
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2016-12-17 16:26:45 -05:00 |
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Thomas Harte
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dc08a23ceb
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This is going to be a slow walk, I think. This class attempts to be the scratchpad which will hold in-memory track modifications.
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2016-12-16 19:20:38 -05:00 |
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Thomas Harte
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c4041b06a8
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This'll do as a write interface, won't it?
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2016-12-07 22:19:20 -05:00 |
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Thomas Harte
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0dc2aa6454
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Commuted all of 'Storage' other than 'Tape' to postfix underscores.
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2016-12-03 11:59:28 -05:00 |
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Thomas Harte
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81ee834530
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As well as a bunch of logging, reinstated rotation position preservation across tracks.
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2016-12-02 18:36:47 -05:00 |
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Thomas Harte
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93c573bfa9
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Implemented missing status bits (other than the index hole), and a head loading delay for the Microdisc.
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2016-12-01 21:13:16 -05:00 |
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Thomas Harte
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2222cb65d6
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Split the status up into flags, assembled into a register upon demand. Attempted to implement some of the differences between the 1770/1772 and 1773/1793. Albeit with a motor fix still in place.
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2016-11-30 22:26:02 -05:00 |
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Thomas Harte
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f44542c18c
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Improved naming: this now explains what, not the mechanics of how.
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2016-11-26 23:35:11 +08:00 |
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Thomas Harte
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5c8ecd3051
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It probably needs a better name, but hastily implemented track caching at the Disk level.
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2016-11-26 14:27:06 +08:00 |
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Thomas Harte
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2f86b07cfa
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Added a parser for Oric-format MFM disks. Causing my first disk to load!
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2016-11-26 13:40:10 +08:00 |
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Thomas Harte
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dcfdd73077
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Switched to more conventional runtime polymorphism, also now allowing encoders (shifters as were) to be obtained, as a slightly lower-level interface than vector-of-sectors.
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2016-11-26 13:39:20 +08:00 |
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