108 Commits

Author	SHA1	Message	Date
Thomas Harte	1e416d4af0	Withdrew now-unused and never-implemented API from TimedEventLoop, and the redundant track time count from DiskController.	2016-12-24 21:02:10 -05:00
Thomas Harte	bedea48d03	This is a much better way of dealing with being partway into an incoming event. Subject to eliminating overruns, of course.	2016-12-24 20:54:27 -05:00
Thomas Harte	4cb17143ef	Messing around trying to lock down timing precisely. Which includes formal initial conditions.	2016-12-24 15:18:46 -05:00
Thomas Harte	1e970a9772	Started stepping slowly towards allowing writing on the disk controller, taking the opportunity to introduce self-simplifying behaviour to Storage::Time.	2016-12-24 13:07:23 -05:00
Thomas Harte	e4e0347638	Attempted to consolidate some of the repetition.	2016-12-21 22:17:00 -05:00
Thomas Harte	03579f33f1	Fixed multi-coverage insertion, via an appropriate test.	2016-12-20 21:38:32 -05:00
Thomas Harte	7eca910cc5	Fixed insertion location finding logic, working on the relevant test.	2016-12-20 21:14:05 -05:00
Thomas Harte	823ab9bc34	Completed initial non-trivial test, fixing revealed errors.	2016-12-20 19:15:36 -05:00
Thomas Harte	5a508ea0df	Attempted properly to cover the exactly-equal starts and ends cases, and to improve meaning.	2016-12-20 18:32:49 -05:00
Thomas Harte	63d861a2f3	Switched from C-in-the-brain manual offset counting to using iterators like an ordinary C++ person.	2016-12-20 18:17:54 -05:00
Thomas Harte	6f17076003	Switched to much more logical shared_ptr ownership of PCMSegmentEventSources by Periods.	2016-12-20 18:13:10 -05:00
Thomas Harte	497b2ae4dd	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.	2016-12-20 08:14:16 -05:00
Thomas Harte	6bdde542c5	Edging towards functioning automatic tests, fixed right-period adjustment and slightly decreased searching cost while in the process of adding a test.	2016-12-20 07:52:14 -05:00
Thomas Harte	ec624eaab1	Made an attempt fully to implement PCMPatchedTrack. Which now requires tests.	2016-12-20 07:30:57 -05:00
Thomas Harte	1ef1f6ec69	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.	2016-12-19 21:46:02 -05:00
Thomas Harte	8f937ceac8	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.	2016-12-19 07:42:43 -05:00
Thomas Harte	e081f224b6	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.	2016-12-18 22:53:24 -05:00
Thomas Harte	a6354ebb01	Reimplemented PCMTrack to use PCMSegmentEventSource, eliminating code duplication.	2016-12-18 21:37:05 -05:00
Thomas Harte	f9a5595dad	Added seeking tests, correcting such errors as uncovered.	2016-12-18 10:19:24 -05:00
Thomas Harte	3297f6d545	Made an attempt to implement seek_to on PCMSegmentEventSource, taking account of off-by-half counting.	2016-12-17 22:44:33 -05:00
Thomas Harte	3116a2cf4c	Realised I was actually testing PCMSegmentEventSource, not PCMSegment; implemented a spread of tests; hence fixed PCMSegmentEventSource.	2016-12-17 21:47:13 -05:00
Thomas Harte	254cc41fd6	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.	2016-12-17 21:13:57 -05:00
Thomas Harte	313db75303	Ensured the patchable track owns its underlying track.	2016-12-17 18:17:22 -05:00
Thomas Harte	f1a08b7ab5	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.	2016-12-17 16:26:45 -05:00
Thomas Harte	dc08a23ceb	This is going to be a slow walk, I think. This class attempts to be the scratchpad which will hold in-memory track modifications.	2016-12-16 19:20:38 -05:00
Thomas Harte	c4041b06a8	This'll do as a write interface, won't it?	2016-12-07 22:19:20 -05:00
Thomas Harte	0dc2aa6454	Commuted all of 'Storage' other than 'Tape' to postfix underscores.	2016-12-03 11:59:28 -05:00
Thomas Harte	81ee834530	As well as a bunch of logging, reinstated rotation position preservation across tracks.	2016-12-02 18:36:47 -05:00
Thomas Harte	93c573bfa9	Implemented missing status bits (other than the index hole), and a head loading delay for the Microdisc.	2016-12-01 21:13:16 -05:00
Thomas Harte	2222cb65d6	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.	2016-11-30 22:26:02 -05:00
Thomas Harte	f44542c18c	Improved naming: this now explains what, not the mechanics of how.	2016-11-26 23:35:11 +08:00
Thomas Harte	5c8ecd3051	It probably needs a better name, but hastily implemented track caching at the Disk level.	2016-11-26 14:27:06 +08:00
Thomas Harte	2f86b07cfa	Added a parser for Oric-format MFM disks. Causing my first disk to load!	2016-11-26 13:40:10 +08:00
Thomas Harte	dcfdd73077	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.	2016-11-26 13:39:20 +08:00
Thomas Harte	b180f04c87	Okay, so this file format wasn't what I hoped it was. It's another hack. Lots of work to do.	2016-11-26 10:19:10 +08:00
Thomas Harte	7613755f94	Fixed addressing: types are 1 and 2, not 0 and 1.	2016-11-26 10:13:12 +08:00
Thomas Harte	8499783b14	Dragged multibyte primitives and signature checks up to the base class. Implemented support for Oric MFM-style .DSK, at the file format level.	2016-11-21 20:47:16 +08:00
Thomas Harte	31c2548804	Created a base class for the boilerplate fopen stuff, switched as many classes as possible to its use, switched to postfix underscores and non-camelCase names.	2016-11-21 20:14:09 +08:00
Thomas Harte	ca53fac732	Switched to assuming a single-sided disk, moved out magic constants.	2016-09-26 21:20:30 -04:00
Thomas Harte	572d5587d9	Made a first stab at enabling multi-disk machines and thereby obeying (some of) the Plus 3's status register.	2016-09-25 21:24:16 -04:00
Thomas Harte	9bbcbd1001	Renamed class, intending to turn a Disk::Drive into literally just that, and have a thing with a PLL that consumes events be a Controller.	2016-09-25 20:05:56 -04:00
Thomas Harte	523dbb9678	This'll do for getting the ADF into the machine.	2016-09-25 18:32:26 -04:00
Thomas Harte	de863719d0	Made a first attempt at Acorn ADFS support plus the start of a suitable analyser.	2016-09-25 17:46:11 -04:00
Thomas Harte	a9e65e9b7a	Tweaked disk side density, added call-outs to a WD1770 if the Electron had one (albeit without run_for_cycles yet as I need to figure out the clock rate), added a shell of the basic functions of the WD1770. No implementation yet.	2016-09-19 22:06:56 -04:00
Thomas Harte	64f2538b1f	Added CRC checking to DFS comprehension; fixed a bunch of places where I'd used Objective-C's #import rather than #include.	2016-09-19 08:16:06 -04:00
Thomas Harte	8a1b805d11	Fixed file offset calculation for single-sided images.	2016-09-19 07:34:10 -04:00
Thomas Harte	b1e7f2dfd0	There's no cache and no CRC checking yet, but this is probably a rough outline of an FM parser.	2016-09-18 22:03:06 -04:00
Thomas Harte	d1c861d3a5	That should be that, I hope.	2016-09-18 21:09:32 -04:00
Thomas Harte	02c9a82cb5	Edging towards SSD/DSD support. Hold on!	2016-09-18 19:32:08 -04:00
Thomas Harte	91cd7e143b	Started on the SSD/DSD support. Realised I had ommitted multiple head support from my disk class. Fixed that.	2016-09-18 19:21:02 -04:00