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4,130 Commits 10 Branches 121 Tags 498 MiB
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647 Commits

Author SHA1 Message Date
Thomas Harte
7b7beb13a3 Eliminates the fiction of setting and getting registers. 
The Disk II seems lower level than that; it will read the data bus whenever it likes, it is the programmer's responsibility to keep up with that. It also reserves the right not to load the bus regardless of whether it receives a read or write access.
 2018-05-17 21:39:11 -04:00
Thomas Harte
85c4e009f3 Undoes reformatting error. 2018-05-14 20:03:32 -04:00
Thomas Harte
76802b5e38 Eliminates arc4random. 
It seems not to be as portable as I'd hoped.
 2018-05-14 20:01:20 -04:00
Thomas Harte
9f2f388e5a Ensures generation of random noise if too many zeroes exist on a disk surface. 2018-05-14 19:17:34 -04:00
Thomas Harte
7996040f35 Rejigs segment conjugation to avoid potential accidental empty byte. 2018-05-13 22:30:44 -04:00
Thomas Harte
0055efb720 Corrects failure of expression in track size expansion. 2018-05-13 22:29:36 -04:00
Thomas Harte
84ae2964fd Switches to explicit unicode entry points. 2018-05-13 16:02:46 -04:00
Thomas Harte
149b940f84 Commutes the pound sign to a proper unicode value. 2018-05-13 15:50:56 -04:00
Thomas Harte
7226d8d4f7 Eliminates all instances of µ. 2018-05-13 15:46:14 -04:00
Thomas Harte
ad9b0cd4e3 Eliminates all endashes. 2018-05-13 15:43:03 -04:00
Thomas Harte
5d6b5d9f10 Eliminates all emdashes in cross-platform code. 2018-05-13 15:34:31 -04:00
Thomas Harte
0b771ce61a Removes all instances of the copyright symbol. 2018-05-13 15:19:52 -04:00
Thomas Harte
3fdefb94e4 Removes requirement for correct sector epilogues. 
It's now a length test that at present accepts 6-and-2 sectors only.
 2018-05-12 23:03:08 -04:00
Thomas Harte
49592ebaf3 Ensures initialisation of scanner and that sectors overlapping the end of track are captured. 2018-05-12 18:42:07 -04:00
Thomas Harte
f410dcb3f3 Ensures proper test: not having a number of sectors that is a multiple of the track count. 2018-05-12 18:05:33 -04:00
Thomas Harte
0cb5362c6f Disambiguates whether Step will occur in addition to below zero/beyond maximum. 2018-05-11 21:44:08 -04:00
Thomas Harte
9089bf6535 Adds step events. 2018-05-10 21:58:14 -04:00
Thomas Harte
ef19a03efc Drives can now deliver activity events. 2018-05-10 21:54:10 -04:00
Thomas Harte
25f7e3af31 Removes dead debugging aid. What a klutz! 2018-05-09 22:24:20 -04:00
Thomas Harte
8ee34fafa6 Switches default DSK volume to 254. That seems to resolve Pravetz booting issues. 2018-05-09 20:28:58 -04:00
Thomas Harte
f65c65569a Makes disk head position explicitly something with sub-integral precision. 
Also as a drive-by fix, corrects accidental assumption of 10 sectors for all MFMSectorDump descendants.
 2018-05-06 23:17:36 -04:00
Thomas Harte
36f8b165cf Makes the epilogue test a bit more thorough. 2018-05-05 20:52:42 -04:00
Thomas Harte
1293d8b69e Corrects various indentation errors. 2018-05-05 19:32:20 -04:00
Thomas Harte
ba7fbc4032 Reroutes all Disk II types through the Disk II analyser and returns actual sector from the Apple GCR parser results. 2018-05-05 16:37:33 -04:00
Thomas Harte
c36d7b4972 Makes first attempt at 6 and 2 decoder. 2018-05-04 23:11:12 -04:00
Thomas Harte
0dece80b5d Improves documentation. 2018-05-04 18:02:55 -04:00
Thomas Harte
e3b4aebf1a Introduces the Disk II as a unique media target platform. 
As it makes a little more sense to analyse Apple GCR images to determine target platform than it does to have the potential platforms vote over them.

Also starts on the parser that'll be necessary for making a decision.
 2018-05-04 18:02:36 -04:00
Thomas Harte
2e20191c01 Relocates and cleans up what is currently written of Apple GCR handling as the encoder. 
A decoder will be forthcoming.
 2018-05-03 22:40:45 -04:00
Thomas Harte
fcc750784a Switches interleaving logic around: having inspected some NIBs sectors are numbered in order, but scatter read from the image. 2018-05-02 21:28:18 -04:00
Thomas Harte
3787d094ec Deals with potential precision pitfall. 2018-05-02 21:26:39 -04:00
Thomas Harte
4b4ea4a103 Corrects final two bytes of Apple GCR low nibble encoding. 2018-05-02 21:06:18 -04:00
Thomas Harte
5e34c1b6b8 Switches to producing a single segment for NIBs and DSKs. 
I've now seemingly verified that the values read back by the CPU are those I'm intending to produce, so I'm at a loss.
 2018-05-01 20:31:42 -04:00
Thomas Harte
f4097290c2 Made various corrections following a quick for-loop constness audit. 2018-04-30 22:23:57 -04:00
Thomas Harte
9da481b060 Slightly simplifies syntax. 2018-04-30 22:08:51 -04:00
Thomas Harte
79002d6962 Adds an additional assert. 2018-04-30 22:07:54 -04:00
Thomas Harte
dbd9282efc Experimentally switches to doubles for TimedEventLoop time tracking. 2018-04-30 22:07:17 -04:00
Thomas Harte
10c0e687f5 Attempts to introduce sleeping for the Disk II. 2018-04-29 17:51:10 -04:00
Thomas Harte
a9d4fe0b41 Introduces filetype wiring for DO and PO files. 
Also corrects sector numbering logic to ensure there is a sector 15.
 2018-04-29 16:34:10 -04:00
Thomas Harte
5cd15147eb Introduces interleaving of sector numbers. 2018-04-29 16:18:14 -04:00
Thomas Harte
c62db6665a Corrects storage of lower two bit pairs. 
It turns out the non-integral result of 256/3 is handled differently than my guess.
 2018-04-29 11:20:23 -04:00
Thomas Harte
fabcb261dc Corrects data prologue usage and off-by-one error in checksum placement. 2018-04-28 23:17:06 -04:00
Thomas Harte
45cf28e0eb Corrects sync lengths. 2018-04-28 15:48:49 -04:00
Thomas Harte
5b35c88be2 Corrections: data segments now correctly announce their number of bits, and tracks aren't oversized. 2018-04-28 15:47:50 -04:00
Thomas Harte
7f03f5d02f Makes a first attempt at six-and-two encoding for DSKs. 2018-04-28 15:18:48 -04:00
Thomas Harte
b98d5b790a Finally unifies disk image file exceptions, and adds a placeholder for Apple DSK. 2018-04-27 23:18:45 -04:00
Thomas Harte
5c74044e62 Unifies constants. 2018-04-27 21:38:08 -04:00
Thomas Harte
992a99d792 Improves validation of suspected sync regions. 2018-04-27 19:53:35 -04:00
Thomas Harte
41075356e2 Makes a first attempt at NIB support. 2018-04-26 22:49:07 -04:00
Thomas Harte
d59db504a3 Adjusted stepper logic; some disks load now. 2018-04-25 21:59:18 -04:00
Thomas Harte
c90e122eb2 Switches casts around to avoid potential undefined behaviour of left-shifting signed numbers. 2018-04-25 19:59:32 -04:00
Thomas Harte
4c6dc597f4 Converts Time::get into a template, introduces a via-a-double fallback for the timed event loop. 2018-04-25 19:54:39 -04:00
Thomas Harte
376b26c1e4 Simplifies the rotational multiplier upon construction, to mitigate against scale issues later. 2018-04-24 20:16:14 -07:00
Thomas Harte
7061537ff5 Makes joined-up attempt to run data through the Disk II. 2018-04-24 19:44:45 -07:00
Thomas Harte
4cbe5068a9 Works further towards NIB, but still isn't close. 2018-04-23 20:01:12 -07:00
Thomas Harte
38b2302b59 Corrects minor documentation errors. 2018-04-23 19:59:19 -07:00
Thomas Harte
bce0702745 Makes some faulty steps further towards providing Apple GCR assistance. 2018-04-23 19:59:03 -07:00
Thomas Harte
d447e81abd Adds provisional support for WOZ files. 2018-04-23 19:57:45 -07:00
Thomas Harte
6592745e53 Adds the bare minimum to respond to attempts to open NIB files with an Apple II. 2018-04-21 21:21:57 -07:00
Thomas Harte
72bc5f8d7b Adds a class to contain the Disk II and begins Apple GCR conversion routines. 2018-04-21 14:33:42 -07:00
Thomas Harte
079dc671e1 Rationalises per-machine static analyser call pattern, and adds Apple II as an option. 2018-04-14 12:12:12 -04:00
Thomas Harte
e1c4035812 Switches away from C strings and allows Vic-20 region inference from filenames. 2018-04-06 17:42:24 -04:00
Thomas Harte
3bb496f9ae Enforces a maximum sector size to avoid impossible sizes. 
Such as 128 * 2^255.
 2018-03-22 22:00:26 -04:00
Thomas Harte
1100dc6993 Opens up .bin and .rom to all cartridge platforms, and adds a confidence estimate to the Atari 2600. 2018-03-07 14:26:07 -05:00
Thomas Harte
5530b96446 Wired up a class and analyser for a ColecoVision. 2018-02-23 22:47:15 -05:00
Thomas Harte
d83178f29d Makes an attempt at implementing all missing TZX 1.20 blocks. 
Towards that aim, simplifies CSW handling so that even regular RLE compression uses a static grab of file contents.
 2018-02-22 21:28:12 -05:00
Thomas Harte
21efb32b6f Integrates the static and nascent dynamic analyser namespaces. 2018-01-24 21:48:44 -05:00
Thomas Harte
583c3cfe7d Allows the MSX to load ROMs that aren't quite multiples of 8kb. 2018-01-16 22:27:41 -05:00
Thomas Harte
def82cba49 Makes MSX tape parsing more tolerant to phase. 
Also reintroduces proper file type association for TSX on the Mac.
 2018-01-10 21:54:15 -05:00
Thomas Harte
aafdff49be Implements the ugly stuff of converting a DMK back to flux. 2018-01-09 22:13:04 -05:00
Thomas Harte
4ef583813a Minor tidying of PCMSegment and Oric MFM DSK. 2018-01-09 22:12:34 -05:00
Thomas Harte
9f97fb738e Merge branch 'master' into DMK 2018-01-09 19:42:27 -05:00
Thomas Harte
4e124047c6 Introduces enough DMK support to progress to failure to parse a track. 2018-01-08 21:57:11 -05:00
Thomas Harte
6eb56a1564 Corrects various comment typos. 2018-01-08 20:55:40 -05:00
Thomas Harte
35fc0a5c16
Corrects assumption of double sidedness. 2018-01-08 09:35:29 -05:00
Thomas Harte
0ccc104027 Corrects start sector and track interleaving for MSX DSK. 
MSX DSKs start with sector 1; Acorn disks still begin with sector 0. Also it turns out that MSX DSKs are indeed interleaved.
 2018-01-07 21:59:18 -05:00
Thomas Harte
2f59226300 Fixes: DiskROM drive motor control, track_for_sectors' sides. 2018-01-07 20:02:40 -05:00
Thomas Harte
999a0c22d4 Adds superficial support for MSX .DSK. 
In the sense that the file format itself is properly parsed, but the MSX doesn't actually yet have disk hardware.
 2018-01-07 16:35:57 -05:00
Thomas Harte
98a9d57c0b Imputes the alignment requirement for CAS headers. 
Also stops adding a spurious 0xff as the final byte on the tape.
 2017-12-29 10:42:18 -05:00
Thomas Harte
c481293aca Liberalises CAS interpretation. 
It seems to be an even weirder file format than I thought; it can contain only ROM-formatted data but seemingly often contains blobs that the ROM cannot write.
 2017-12-29 09:56:58 -05:00
Thomas Harte
5fd0a2b9ea Attempts to pull reimplementations of TAPION and TAPIN better into line with originals. 
Also improves whole flow of the fast tape hack that uses them.
 2017-12-28 22:48:04 -05:00
Thomas Harte
c4950574ea Introduces an attempted reimplementation of the MSX BIOS's two main tape reading entry points. 2017-12-26 22:19:37 -05:00
Thomas Harte
0b297f2972 Adds some appropriate costs to the tape players. 2017-12-26 22:13:28 -05:00
Thomas Harte
cbba6a5595 Ensures final few bytes of a CAS file aren't dropped. 2017-12-23 19:54:42 -05:00
Thomas Harte
0a079b0f94 Attempts to fix failure to distinguish end-of-file. 2017-12-23 19:32:24 -05:00
Thomas Harte
9a7e974579 Corrects skipping of every other file, and transition from bytes back into header. 2017-12-23 19:20:04 -05:00
Thomas Harte
f4d414d6e4 Removes stray line break. 2017-12-23 18:42:04 -05:00
Thomas Harte
b4bfcd4279 Switches to an attempt to break the .CAS into files ahead of time. 
Hopefully the better to insert appropriate lengths of header and gap.
 2017-12-23 18:41:50 -05:00
Thomas Harte
e8ddff0ee0 Makes a first, messy, attempt at serialising CAS files into audio. 2017-12-21 22:34:03 -05:00
Thomas Harte
28fb1ce2ae Removes unnecessary logging. 2017-12-20 21:39:17 -05:00
Thomas Harte
f17758e7f9 Attempts better to deal with large numbers. 2017-12-20 21:03:24 -05:00
Thomas Harte
0bb24075b6 Immediate fixes: TSX is seemingly TZX 1.21; the tape motor control works the other way around. 
Input is not yet being recognised.
 2017-12-19 22:17:42 -05:00
Thomas Harte
db6d9b59d0 Attempts to implement TSX support for the MSX. 2017-12-19 21:53:04 -05:00
Thomas Harte
ae21782adc Corrects two Cartridge type mismatches. 2017-12-03 15:43:59 -05:00
Thomas Harte
ca26ce8400 Slightly corrects style errors in the Cartridge hierarchy, and introduces mapping of .ROM to the MSX when appropriate. 2017-12-02 16:01:30 -05:00
Thomas Harte
68a2895753 Adds enough static analyser to get to the MSX itself as the point of failure in SDL/kiosk mode. 2017-11-25 13:18:24 -05:00
Thomas Harte
0eaac99d74 Avoids implicit signed/unsigned comparison in the G64 reader. 2017-11-12 17:48:11 -05:00
Thomas Harte
792061a82b Corrects warnings in the CSW, CPC DSK, ZX8081 data encoding, and PRG and binary cartridges. 2017-11-12 17:46:06 -05:00
Thomas Harte
d2ba7d7430 Corrects GCC warnings in Commodore::File and the FileHolder. 2017-11-12 17:38:21 -05:00
Thomas Harte
282e5c9d3e For GCC's benefit, added impossible default options. 2017-11-12 16:45:31 -05:00
Thomas Harte
ede47d4ba7 Improves type safety within CSW file support. 2017-11-12 16:42:53 -05:00