Thomas Harte
|
8a2bdb8d22
|
Converted the TimedEventLoop and the things that sit atop it into ClockReceivers.
|
2017-07-24 21:19:05 -04:00 |
|
Thomas Harte
|
1d01acce06
|
Fixed differing types of loop variables and targets.
|
2017-07-21 21:53:05 -04:00 |
|
Thomas Harte
|
e01f3f06c8
|
Completed curly bracket movement.
|
2017-03-26 14:34:47 -04:00 |
|
Thomas Harte
|
8eb21c6702
|
The "MFM...Byte"s aren't MFM-specific, they're relevant to both FM and MFM encoding. So renamed them. Also slimmed syntax within MFM.cpp mostly where emigration from the Acorn disk analyser had left a residue of lengthy namespace specification.
|
2016-12-31 15:25:11 -05:00 |
|
Thomas Harte
|
cfbab1448c
|
Switched to a track parsing that disallows synchronisation values within sector contents.
|
2016-12-31 12:23:08 -05:00 |
|
Thomas Harte
|
6f0b5427e4
|
Made an attempt to avoid repetition of sync bytes.
|
2016-12-31 00:20:00 -05:00 |
|
Thomas Harte
|
0123b37213
|
Made an attempt to include sync values in the stream and properly to align.
|
2016-12-31 00:11:31 -05:00 |
|
Thomas Harte
|
1f625fad66
|
Decided that if this is an [M]FM parsing function then it should be something more intelligent than a mere PLL record. Which I guess conveniently implies Oric DSK-esque behaviour. But properly defined, rather than very vaguely.
|
2016-12-30 23:10:52 -05:00 |
|
Thomas Harte
|
d581294479
|
Added get_track to get the PLL output for a complete track.
|
2016-12-30 19:59:23 -05:00 |
|
Thomas Harte
|
c740d9655a
|
Fixed: index_count_ may have been left high by a previous call; reset it just in case.
|
2016-12-30 17:55:06 -05:00 |
|
Thomas Harte
|
d09e7ac1e8
|
Made an attempt at reacting appropriately if the very first thing that looks like a sector doesn't pan out.
|
2016-12-30 17:44:35 -05:00 |
|
Thomas Harte
|
82bb78fb2d
|
Ensured that get_sector copes even if any invalid sectors are encountered.
|
2016-12-30 14:21:14 -05:00 |
|
Thomas Harte
|
9cb902cc4f
|
Experimentally marked ADF as writable too, immediately discovering a mistake in the analysing MFM decoder.
|
2016-12-28 22:34:22 -05:00 |
|
Thomas Harte
|
46a93d2e12
|
Fixed errors to ensure that FM disks, at least, follow the same CRC generation rules when being built from sectors and when being parsed.
|
2016-12-28 19:48:46 -05:00 |
|
Thomas Harte
|
720b1e5802
|
Attempted to ensure proper CRC generation for FM-format input.
|
2016-12-28 18:56:53 -05:00 |
|
Thomas Harte
|
a568172758
|
Made steps towards proper CRC generation. Am currently comparing against Oric disk images, as — amongst other things — they include precomputed CRCs.
|
2016-12-28 18:29:37 -05:00 |
|
Thomas Harte
|
0490a47058
|
Worked on the all-around framework for decoding sectors back from tracks when closing down a file. Hit the wall that the parser is more observant of CRCs than the WD. No, really. So I guess I have to stop avoiding that whole issue.
|
2016-12-26 14:24:33 -05:00 |
|
Thomas Harte
|
beaa868079
|
Factored the MFM parser out into encodings.
|
2016-12-25 20:00:57 -05:00 |
|
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
|
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
|
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
|
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 |
|
Thomas Harte
|
5409c8ec54
|
Switched PCMSegments to std::vector; ensured generated [M]FM tracks are correctly sized, thereby making sure the individual flux windows will be correctly sized.
|
2016-09-18 18:56:35 -04:00 |
|
Thomas Harte
|
d9aaf456f0
|
Adapted pervasively to MSB-first output. Which seems to be correct.
|
2016-09-18 18:46:58 -04:00 |
|
Thomas Harte
|
180c3df2d4
|
Calling it 'number theory' probably isn't accurate but extracted the CRC stuff and started using it for [M]FM encoding.
|
2016-09-18 18:33:26 -04:00 |
|
Thomas Harte
|
55a7418cbf
|
Parameterised to perform FM and MFM encodings, at least subject to CRCs still being missing.
|
2016-09-18 17:16:20 -04:00 |
|
Thomas Harte
|
22eed60d2b
|
Started sketching out basic MFM track encoding. Which possibly even means that the shifters don't need to be public?
|
2016-09-18 16:53:21 -04:00 |
|
Thomas Harte
|
0089c830c6
|
This possibly correctly encapsultes the lowest level of FM and MFM rules.
|
2016-09-18 14:17:06 -04:00 |
|
Thomas Harte
|
bcf91de7e9
|
Declared support for the Acorn disk files, started hammering out an encoder.
|
2016-09-18 13:35:54 -04:00 |
|