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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c0a1264ab0
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Slightly improved legibility.
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2016-12-25 20:19:47 -05:00 |
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Thomas Harte
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e2b829f68e
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Made an attempt to write the proper address mark.
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2016-12-25 20:15:07 -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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74e98fd097
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Made an attempt to write actual data (albeit that CRC calculation is still missing).
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2016-12-25 19:18:45 -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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e56beb3e9c
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Merge pull request #86 from TomHarte/DiskWrites
Implements backing work for in-memory disk writes
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2016-12-25 09:37:20 -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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d606bd7ce5
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Added saturation test, fixed code as indicated.
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2016-12-24 23:29:37 -05:00 |
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Thomas Harte
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09ff9d6a26
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Introduced a couple more floating-point conversion tests, fixed errors uncovered.
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2016-12-24 23:21:19 -05:00 |
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Thomas Harte
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e25195a718
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Added a single test for Storage::Time, discovering that I had the wrong sign on float conversions.
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2016-12-24 22:59:01 -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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4d4852bb78
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Ensured that Times start life in their simplest form.
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2016-12-24 15:18:03 -05:00 |
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Thomas Harte
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4728bda0a2
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Added an additional constructor to make sure that regular ints go to the correct place.
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2016-12-24 13:27:57 -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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42f25cdffc
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Merge branch 'master' into DiskWrites
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2016-12-22 22:47:19 -05:00 |
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Thomas Harte
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393dc5c64f
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Merge pull request #87 from TomHarte/ElectronVideoFix
Ensures the Electron's video base address is set properly at construction.
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2016-12-22 22:46:55 -05:00 |
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Thomas Harte
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3805e3d17d
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Ensured base address is set properly at construction.
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2016-12-22 22:46:02 -05:00 |
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Thomas Harte
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7028f57336
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Simplified a little further.
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2016-12-22 18:13:10 -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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72ca06cf8d
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Added some extra tests, performed some basic tidying. Probably should do more.
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2016-12-21 19:54:19 -05:00 |
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Thomas Harte
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6a0c7f22ee
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Added a few more tests. All passing.
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2016-12-20 21:46:34 -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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c180340474
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Added two more passing tests and one that crashes.
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2016-12-20 19:25:58 -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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1df478d250
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Removed dead header file.
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2016-12-18 23:04:16 -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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