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1050 Commits

Author SHA1 Message Date
Thomas Harte
d031381e70 Gaps provide content, and data chunk lengths seem to be in terms of unencoded bytes. 2022-01-01 18:47:07 -05:00
Thomas Harte
ed1b0b90f7 Makes a first attempt at encoding data. 2022-01-01 18:36:44 -05:00
Thomas Harte
38dd3c5c60 On second thoughts, no need to use a vector here. 2022-01-01 17:15:12 -05:00
Thomas Harte
d3189acaa6 Add a constexpr route that explicitly calculates the simplest possible form. 2022-01-01 17:14:52 -05:00
Thomas Harte
350c98ab4d Add those densities I've yet discovered the rules for. 2021-12-29 18:15:37 -05:00
Thomas Harte
4f3c754771 Adds exposition. 2021-12-27 19:15:46 -05:00
Thomas Harte
dc994f001d Mention units. 2021-12-27 18:55:11 -05:00
Thomas Harte
9b6ccbcc95 Parses data and gap stream elements. 2021-12-27 18:12:44 -05:00
Thomas Harte
9d3cf9c73c Collate descriptions of all tracks. 2021-12-26 14:49:51 -05:00
Thomas Harte
28572d4392 Enforce string-length requirement. 2021-12-26 09:12:44 -05:00
Thomas Harte
0433db0370 Eliminate macro. 2021-12-25 19:36:54 -05:00
Thomas Harte
a6b326da48 Parse the INFO record. 2021-12-25 18:17:13 -05:00
Thomas Harte
e457ce66ea Adds sanity checks around CAPS block. 2021-12-25 17:32:29 -05:00
Thomas Harte
c118dd8afe Adds just enough to list all the blocks in an IPF. 2021-12-25 17:27:50 -05:00
Thomas Harte
dba3a3d942 Add through route to an IPF container. 2021-12-25 17:06:47 -05:00
Thomas Harte
6c606b5506 Fix through route to TargetPlatform::TypeDistinguisher. 2021-12-25 17:06:12 -05:00
Thomas Harte
544c137cb0 Add updated intel. 2021-10-16 13:30:56 -07:00
Thomas Harte
d9d20d9d30 Walk back slightly. 2021-10-14 18:02:58 -07:00
Thomas Harte
b12c640807 Makes drives non-copyable. 
To avoid error in the future.
 2021-10-14 12:37:55 -07:00
Thomas Harte
8960f471a0 Use unspread_bits for FM and MFM decoding. 2021-10-12 15:18:50 -07:00
Thomas Harte
955cb6411c Factor out bit spreading. 
(And do a better job of it)
 2021-10-12 14:49:01 -07:00
Thomas Harte
fc4ca4f8e3 I don't think there are sync words at the start of the track. 2021-10-12 10:38:15 -07:00
Thomas Harte
a1f02d0cd8 Add track padding. 2021-10-11 18:05:37 -07:00
Thomas Harte
addf9f9af4 Moves block byte writes into Storage::Encodings::MFM::Encoder. 2021-10-10 16:06:51 -07:00
Thomas Harte
c4cfcfab8e Checksums appear to be calculated as 32-bit quantities. 2021-10-10 12:58:10 -07:00
Thomas Harte
5e083426c5 Takes another run at checksums. 
It turns out I'd read entirely the wrong section of the ADF FAQ. Am now trying to piece things together from various EAB threads.
 2021-10-10 11:47:48 -07:00
Thomas Harte
aeaea073c6 Switch both: (i) which bits are odd/even; and (ii) nibble ordering. 2021-10-09 13:45:19 -07:00
Thomas Harte
ed303310bb Spell out slightly more; this makes debugging a touch easier. 2021-10-06 13:40:48 -07:00
Thomas Harte
ce8f782577 Corrects meaning of IBM-style RDY. 2021-10-06 04:42:44 -07:00
Thomas Harte
6566936be9 Be overt about the intended interface. 2021-10-04 16:45:33 -07:00
Thomas Harte
9012a7f5e1 Merge branch 'master' into Amiga 2021-09-23 23:00:03 -04:00
Thomas Harte
e5a5faa417 Resolves Clang 13 implicit conversion warnings. 2021-09-23 22:53:41 -04:00
Thomas Harte
2b0a4055f7 Makes an attempt at Amiga ADF encoding. 2021-07-16 20:07:17 -04:00
Thomas Harte
7cb16a3fc5 Introduces a shell for Amiga ADF decoding. 2021-07-16 18:11:07 -04:00
Thomas Harte
0b80c1988b Add Amiga enums. 2021-07-16 17:59:08 -04:00
Thomas Harte
6b47fb38c6 Corrects buffer placement of decoded sectors. 2021-07-03 13:36:01 -04:00
Thomas Harte
bae8bb0c00 Gives the FAT parser responsibility for right trims. 2021-07-02 19:50:27 -04:00
Thomas Harte
a5b7d819a7 Correct FAT parser. 2021-07-02 19:28:13 -04:00
Thomas Harte
fe07a0b1d8 Starts to add a FAT[12] parser. 2021-07-02 18:56:43 -04:00
Thomas Harte
83a54fd6d2 Use the FAT12 boot sector to determine geometry. 2021-06-22 06:54:17 -04:00
Thomas Harte
c1678d7be7 Corrects exposition and transmission of drive selection. 
What a klutz I've been.
 2021-06-21 22:56:25 -04:00
Thomas Harte
199621db08 Observes that the actual guess here is MS-DOS-style. 2021-06-19 23:11:51 -04:00
Thomas Harte
61c127ed2e Adds Enterprise as a File -> New... machine. 
And, similarly, exposes it for the route used by SDL.
 2021-06-14 20:55:39 -04:00
Thomas Harte
ceae81a332 Add missing header. 2021-05-13 19:11:19 -04:00
Thomas Harte
50ea56e908 Adds support for Macintosh SCSI device images. 
This is now in addition to the single-partition images previously supported.
 2021-05-13 19:06:00 -04:00
Thomas Harte
20c814a4dd Factors out boilerplate around full-device sector images. 2021-05-01 21:10:46 -04:00
Thomas Harte
4919786825 Relaxes Oric .tap signature check. 2021-04-29 18:00:02 -04:00
Thomas Harte
708c24cc57 This field is counted in half-cycles. 2021-04-26 21:20:32 -04:00
Thomas Harte
7fb3048257 Update AllDisk and AllTape. 2021-04-26 21:04:25 -04:00
Thomas Harte
b7a62e0121 Adds SZX support. 
Tweaking exposed Spectrum state object as relevant.
 2021-04-26 20:47:28 -04:00
Thomas Harte
3348167c46 Ensures AY registers are conveyed. 2021-04-26 17:39:11 -04:00
Thomas Harte
5e08d7db39 Carries through paging state; avoids file rereads. 2021-04-25 20:46:49 -04:00
Thomas Harte
c34cb310a8 Switches to more straightforward handler for .z80-style compression. 2021-04-25 18:07:36 -04:00
Thomas Harte
8d86aa69bc Adds an assert to check handling of compressed data. 2021-04-25 18:02:31 -04:00
Thomas Harte
cc41ccc5f1 Adds RAM deserialisation. 2021-04-25 17:55:52 -04:00
Thomas Harte
e6252fe0ed Sneaks up towards loading RAM. 2021-04-25 17:34:43 -04:00
Thomas Harte
03577de675 Adds an empty vessel for .z80 support. 2021-04-25 16:54:34 -04:00
Thomas Harte
d80f03e369 Corrects longstanding deviation from naming convention. 2021-04-25 14:11:36 -04:00
Thomas Harte
fd271d920b Adds capture and forwarding of border colour. 2021-04-25 14:00:12 -04:00
Thomas Harte
9b65d56ed0 Resolves potential flaw in POPping here. 2021-04-25 13:26:53 -04:00
Thomas Harte
a5098a60ec Attempts to get in-SNA software to start. 2021-04-25 13:18:26 -04:00
Thomas Harte
7aeb17ac92 Corrects HeaderDoc/etc directive. 2021-04-25 13:01:23 -04:00
Thomas Harte
cc78bfb229 Forwards most of the Z80 state. 2021-04-25 13:00:43 -04:00
Thomas Harte
485c2a866c Without yet a struct for Spectrum states, at least checks general wiring. 2021-04-24 23:38:00 -04:00
Thomas Harte
14ae579fca Add further note to future self. 2021-04-24 23:19:41 -04:00
Thomas Harte
d61f478a39 Basic sketch for state snapshots: an extra field on Target. 
I think it doesn't make sense for states to own a target as that complicates the concept of Media. Plus they're distinct because it makes sense to have only one per Target. Let's see how this pans out.
 2021-04-24 23:17:47 -04:00
Thomas Harte
e52649f74d Normalises logging. 2021-04-04 17:39:49 -04:00
Thomas Harte
51b8dcd011 Fixes is_at_end — must be at end of file and have finished final block. 2021-03-28 23:25:29 -04:00
Thomas Harte
cc3c3663f6 Makes minor style improvements. 2021-03-22 19:55:03 -04:00
Thomas Harte
388b136980 Relaxes test for a valid TAP. 2021-03-21 20:31:09 -04:00
Thomas Harte
09a6a1905b Implements TAP support. 2021-03-19 23:29:09 -04:00
Thomas Harte
2ad2b4384b Introduces a container for ZX Spectrum-style TAPs. 2021-03-19 23:01:49 -04:00
Thomas Harte
54491b35ef Merge branch 'master' into ZXSpectrum 2021-03-17 12:39:20 -04:00
Thomas Harte
b447f5f174 Starts adding the Spectrum to the static analyser. 2021-03-17 12:38:37 -04:00
Thomas Harte
d368dae94a Adds tape motor LED. 2021-03-12 23:09:51 -05:00
Thomas Harte
a32a2f36be Advances to correctly reading bytes. 
Something is still amiss though. Maybe I'm supposed to update the checksum?
 2021-03-12 19:15:35 -05:00
Thomas Harte
064fe7658c Adds necessary interface to inherit a CPC tape-speed byte. 2021-03-12 18:43:20 -05:00
Thomas Harte
f190a1395a Enables detection of CPC-format tape data. 
It turns out that the Spectrum's timings are its alone; speed autodetection added.
 2021-03-10 22:02:10 -05:00
Thomas Harte
4eaf3440bd Add note to self. 2021-03-07 21:21:58 -05:00
Thomas Harte
f985248902 Add header for memcpy. 2021-03-07 21:20:35 -05:00
Thomas Harte
5c90744f0c More minor style improvements. 2021-03-07 20:49:40 -05:00
Thomas Harte
e9177bbb2a Makes an attempt to parse headers. 2021-03-07 20:49:09 -05:00
Thomas Harte
ab5e4ca9c7 Factors proceed_to_symbol upwards. 2021-03-07 20:48:51 -05:00
Thomas Harte
40516c9cec Minor style improvements: some local consts, and overrides. 2021-03-07 15:56:58 -05:00
Thomas Harte
d93d380c88 Adds bit-level Spectrum-style tape parsing. 
More to do, obviously.
 2021-03-07 15:51:25 -05:00
Thomas Harte
772093c311 Add missing header. 2021-02-16 22:51:57 -05:00
Thomas Harte
bd54e30748 Adds workaround for Sweet 16, which can produce bad data. 2021-02-16 22:21:10 -05:00
Thomas Harte
6526c645a5 Merge branch 'master' into AppleIIgs 2021-02-02 21:29:38 -05:00
Thomas Harte
2a8e8a4982 Slightly increases logging. 2021-02-02 20:24:19 -05:00
Thomas Harte
07df7572b3 Switch to preferred Acorn-world extension: DAT. 2021-01-31 21:03:09 -05:00
Thomas Harte
906b6ccdb7 This appears to be sufficient for the Electron to _read_ SCSI. 
So that's step one.
 2021-01-31 18:36:29 -05:00
Thomas Harte
f1ba040dd8 This is probably how Acorn hard disk images look (?) 2021-01-31 16:00:52 -05:00
Thomas Harte
b5ecd5f7ef Merge branch 'master' into AppleIIgs 2021-01-31 11:47:40 -05:00
Thomas Harte
ac95e4d758 Adds support for ADL-format disk images. 2021-01-30 18:39:29 -05:00
Thomas Harte
0bd3103949 Wires in the most common IIgs style of 2MG. 2020-11-24 18:19:34 -05:00
Thomas Harte
9a819d6ca0 Transcribes interesting 2MG fields, albeit without acting on them. 2020-11-23 22:02:32 -05:00
Thomas Harte
b4bf541eec Adds boilerplate route into a 2MG-handling class. 2020-11-23 21:42:18 -05:00
Thomas Harte
cddd72876f Flips meaning of ejected bit, to please the IIgs. 2020-11-18 17:20:48 -05:00
Thomas Harte
da8563733b Adds an informal guarantee. 2020-11-16 19:53:17 -05:00
Thomas Harte
e41faeb557 Adds a quick protection against sector ID buffer overrun. 2020-11-16 19:52:42 -05:00
Thomas Harte
a2a928e262 Takes a guess at the format of IIgs .po files; wires them through to the actual machine. 
... which still declines to boot.
 2020-11-12 18:01:26 -05:00
Thomas Harte
5287c57ee0 Adds the IIgs as a user-selectable machine. 
Albeit that there is no underlying machine yet.
 2020-10-20 22:18:11 -04:00
Thomas Harte
82d6a5387f Gives Qt disk controllers independent ROM/RAM selection logic. 
In particular, this fixes the Microdisc.
 2020-07-29 21:06:41 -04:00
Thomas Harte
b961665985 Ensures WOZ2 behaviour even if type_ has an invalid value. 
This pleases GCC 7.
 2020-07-24 21:56:20 -04:00
Thomas Harte
8af35bc6bb Resolves signed comparison mismatches. 2020-07-24 21:55:33 -04:00
Thomas Harte
5ebbab6f35 Further relax Apple GCR static analysis requirements. 2020-07-20 19:50:33 -04:00
Thomas Harte
84dd194afd Corrects test for ::tracks_differ. 2020-07-20 19:48:20 -04:00
Thomas Harte
47f121ee4c Mark WOZs as read-only, with exposition as to why. 2020-07-19 00:08:49 -04:00
Thomas Harte
d8b699c869 Corrects index pulse signalling. 2020-07-19 00:06:27 -04:00
Thomas Harte
a7855e8c98 Ensure float literals are floats. 2020-07-17 23:18:41 -04:00
Thomas Harte
8dcb48254a Simplifies calculations very slightly. 2020-07-17 23:18:08 -04:00
Thomas Harte
f6b7467d75 Implement custom tracks_differ; support WOZ 2 3.5" drive geometry properly. 2020-07-17 22:09:55 -04:00
Thomas Harte
9d1d162cc8 Add an ability to avoid track flushing when file formats have sub-track precision. 2020-07-17 22:09:21 -04:00
Thomas Harte
4ee29b3266 Switches disk seeking logic fully to floating point. 2020-07-17 22:08:58 -04:00
Thomas Harte
c7ef258494 Ensures that five-and-three sectors pass static analysis. 2020-07-16 21:44:14 -04:00
Thomas Harte
4fec7c82ab Very minor grammar improvement. 2020-07-16 21:43:03 -04:00
Thomas Harte
9a952c889f Fixes exit from random gain noise. 2020-07-15 22:44:54 -04:00
Thomas Harte
8da7806ee9 Liberalises segment parser not necessarily to require a standard epilogue. 
It seems that real disks don't always have them; I guess the boot ROM doesn't require one.
 2020-07-15 22:27:04 -04:00
Thomas Harte
aed61f6251 Implements latest advocated MC3470 behaviour. 2020-07-15 19:34:05 -04:00
Thomas Harte
d065d6d98f Adds read-only WOZ 2 support. 2020-07-15 19:15:03 -04:00
Thomas Harte
68645742f7 This is a deliberate fallthrough. 2020-06-20 00:12:08 -04:00
Thomas Harte
59458f6444 Resolves errant spaces. 2020-06-16 23:15:38 -04:00
Thomas Harte
495024d6fe Cleans up all redundant lock/unique_guard declarations. 2020-06-15 00:24:10 -04:00
Thomas Harte
73131735fa Further qmake warning corrections. 2020-05-30 19:31:17 -04:00
Thomas Harte
48afc54af6 Cuts down unused parameter warnings to just a few that may well indicate implementation errors. 2020-05-30 01:06:43 -04:00
Thomas Harte
0bf7de9d43 Advances to actually completing a build. 
Many more warnings to iron out, however.
 2020-05-30 00:47:43 -04:00
Thomas Harte
267006782f Starts to add Qt target; resolves many build warnings. 2020-05-30 00:37:06 -04:00
Thomas Harte
f7c10ef9e9 Replaces POSIX stpncpy with ANSI strlen, memcpy and memset. 2020-05-27 21:31:46 -04:00
Thomas Harte
512a52e88d Increases const correctness, marks some additional constructors as constexpr, switches std::atomic construction style. 2020-05-20 23:34:26 -04:00
Thomas Harte
25996ce180 Further doubles down on construction syntax for type conversions. 2020-05-09 23:00:39 -04:00
Thomas Harte
31c6faf3c8 Adds a bunch of consts. 2020-05-09 21:23:52 -04:00
Thomas Harte
f720a6201b Adds explicit type cast. 2020-03-29 18:36:57 -04:00
Thomas Harte
ea26f4f7bf Eliminates test code, adds a caveat. 2020-03-25 21:22:30 -04:00
Thomas Harte
5fd2be3c8e Makes a genuine attempt at five and three decoding. 2020-03-25 20:50:26 -04:00
Thomas Harte
2320b5c1fe Takes some steps towards five-and-three decoding. 
Now I 'just' need to figure out how bits are distributed within the decoded sector. The XORing and data checksum seem the same (?)
 2020-03-25 00:15:31 -04:00
Thomas Harte
e5cbdfc67c It turns out that 5-and-3 disks have a different header prologue. 2020-03-24 21:59:55 -04:00
Thomas Harte
894d196b64 Avoids massive overallocation where sync blocks overlap the index hole. 2020-03-24 21:34:33 -04:00
Thomas Harte
614032198e Ensures no divide by zero during initial construction. 2020-02-18 22:58:37 -05:00
Thomas Harte
3cb6bbf771 Uses the union of all drive statuses to determine Drive::Controller's preferred clocking. 2020-02-12 22:28:42 -05:00
Thomas Harte
0c2f77305f Eliminates dangling printf. 2020-02-11 22:12:30 -05:00
Thomas Harte
05bcd73f82 Attempts to pull drive ownership into DiskController. 
For the sake of being more intelligent as to drive clocking, hopefully. And, eventually, to support multiple drive selection.
 2020-02-11 21:59:13 -05:00
Thomas Harte
1b27eedf6b Ensure this can definitely never divide by 0. 2020-01-28 23:25:21 -05:00
Thomas Harte
294e09f275 All these 'override's can be 'final's. 
At least for the purpose of being communicative. I doubt there's much to gain in terms of compiler output — the DiskImageHolder can avoid some virtual lookups but nothing else leaps out.
 2020-01-23 22:57:51 -05:00
Thomas Harte
98daad45c7 Removers Factors.hpp; now this is a C++17 project. 2020-01-19 23:18:59 -05:00
Thomas Harte
1b4b6b0aee Renames: NumberTheory -> Numeric. 2020-01-19 23:14:35 -05:00
Thomas Harte
357137918d Adds fuzzy but marking through the GetTrackWithSectors interface. 2020-01-19 21:41:10 -05:00
Thomas Harte
da3ee381f4 Attempts a full wiring up of fuzzy bits. 2020-01-19 21:20:21 -05:00
Thomas Harte
d27d14d2b0 Supplies fuzzy masks where specified. 2020-01-19 21:08:49 -05:00
Thomas Harte
b0326530d6 Allows fuzzy masks to be fed into the FM and MFM encoders. 2020-01-19 21:08:15 -05:00
Thomas Harte
c2bd5be51a This seems to be the proper interpretation of speeds? 2020-01-19 20:42:51 -05:00