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1163 Commits

Author SHA1 Message Date
Thomas Harte
0ca4631279 Switch to zero-initialised state; be more careful about resetting data. 2021-09-09 23:08:13 -04:00
Thomas Harte
a6221ca322 Reload data only if an output is found. 2021-09-09 22:07:03 -04:00
Thomas Harte
f8380d2d4c Add 8250 feature of 'count, regardless'. 2021-08-08 22:32:41 -04:00
Thomas Harte
1f9e41e9cb Ensure TOD isn't firing from power-on. 2021-08-08 18:51:58 -04:00
Thomas Harte
98bd6fc240 Adds a further logging hint. 2021-08-06 23:16:06 -04:00
Thomas Harte
b9f78f5d33 Fix final timer B test. 2021-08-03 22:27:23 -04:00
Thomas Harte
b4ec9d70da Adds the CNT input. 2021-08-03 22:19:41 -04:00
Thomas Harte
dd91d793d9 Correct typo. 2021-08-03 21:45:44 -04:00
Thomas Harte
8e51e8eb77 Does just a touch of 6526 TOD work. 2021-08-03 21:13:08 -04:00
Thomas Harte
6210605bc7 Transfers full TOD responsibility onto the chip-specific templates. 2021-08-03 19:10:09 -04:00
Thomas Harte
0245b040b0 Splits TOD storage by model. 
TOD storage will probably end up being a full-on class.
 2021-08-03 18:50:58 -04:00
Thomas Harte
8795719c18 This counts reloads, most accurately. 2021-08-03 17:12:08 -04:00
Thomas Harte
6bbbf43341 At least attempts to chain correctly. 2021-08-03 17:03:58 -04:00
Thomas Harte
ee6039bfa5 Writes to a timer _during reload_ now have effect. 
Net: one CIA test passed.
 2021-08-03 16:57:05 -04:00
Thomas Harte
ef58ce6277 Gets a bit more rigorous about the clocking stage. 
Albeit without advancing relative to the test.
 2021-08-02 21:04:00 -04:00
Thomas Harte
15de5e98c4 Adds [partial] test for whether counters are linked. 2021-08-02 20:17:37 -04:00
Thomas Harte
38848ca2db Rationalises reload logic and cuts storage. 
Failure point is now chaining, I think.
 2021-08-02 20:14:01 -04:00
Thomas Harte
77c627e822 Ensure that reading the interrupt flags really clears the master bit. 
Also makes some guesses on one-shot and reload timing. Alas the test isn't in itself specific enough to be more systematic here.
 2021-08-02 07:47:08 -04:00
Thomas Harte
c640132699 Reinstates clocking. 2021-08-01 21:35:08 -04:00
Thomas Harte
57dd38aef2 Reintroduces reload-on-off, adds interrupt delay. 2021-08-01 21:09:02 -04:00
Thomas Harte
460a6cb6fe Attempts a more literal implementation. 2021-08-01 18:14:10 -04:00
Thomas Harte
3d160ce85f Add another potential warning. 2021-07-30 18:21:38 -04:00
Thomas Harte
759007ffc1 Attempts to route CIA interrupts. 2021-07-28 19:36:30 -04:00
Thomas Harte
37a55c3a77 Corrects 6526 interrupt control write. 
This seems to imply that the 6526 should be interrupting too.
 2021-07-28 19:26:02 -04:00
Thomas Harte
bcb7bb5cce Improves logging further. 
To investigate the new perpetual loop.
 2021-07-26 17:02:30 -04:00
Thomas Harte
34d4420e8c Correct reading of top byte of counter 2. 2021-07-25 20:41:15 -04:00
Thomas Harte
fcd6b7b0ea Takes further aim at the conters. 
I think test cases are needed, probably.
 2021-07-24 16:06:49 -04:00
Thomas Harte
ceca32ceb3 Takes a guess at one-shot mode. 2021-07-24 15:53:18 -04:00
Thomas Harte
77a8ddb95c Edges towards working counters. 2021-07-23 22:43:47 -04:00
Thomas Harte
c733a4dbf8 Beefs up interrupt awareness. 2021-07-23 21:58:52 -04:00
Thomas Harte
d898a43dff Implements time-of-day counters, provisionally. 
Interrupts to do.
 2021-07-23 21:24:07 -04:00
Thomas Harte
6123349b79 Stubs in control registers and disables exit-on-miss. 
I think I may be running up against the limits of stubbing now. Probably time to implement some stuff.
 2021-07-22 19:28:01 -04:00
Thomas Harte
56b62a5e49 Adds a dummy interrupt control register. 2021-07-22 16:09:32 -04:00
Thomas Harte
a030d9935e Adds port input. 2021-07-18 20:25:04 -04:00
Thomas Harte
c425dec4d5 Makes some attempt to get as far as the overlay being disabled. 2021-07-18 17:17:41 -04:00
Thomas Harte
67d53601d5 Latch and return data direction. 
Albeit with no port-handling effect yet.
 2021-07-18 12:23:47 -04:00
Thomas Harte
622cca0acf Adds sufficient address decoding to print a more helpful exit message. 2021-07-18 12:13:56 -04:00
Thomas Harte
48999c03a5 Adds concept of time, captured port handler. 2021-07-18 11:49:10 -04:00
Thomas Harte
377cc7bdcd Start to introduce a 6526/8250. 2021-07-18 11:36:13 -04:00
Thomas Harte
a5d0976c2d Eliminate unused #includes. 2021-07-18 11:35:57 -04:00
Thomas Harte
ae05010255 Improve indentation. 2021-07-18 11:29:26 -04:00
Thomas Harte
66cacbd0e0 Be overt about the type being supplied. 2021-07-18 11:28:18 -04:00
Thomas Harte
c8699d9770 Correct Disk II sleeping test to allow for spin-down. 2021-07-16 17:12:57 -04:00
Thomas Harte
69c0734975 WD1770: switch motor on even if spin-up is disabled. 2021-06-21 23:26:55 -04:00
Thomas Harte
1d5144b912 Correct no-interrupt signal. 2021-06-04 22:38:07 -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
73c8157197 Retain 6850 time tracking at all times. 2021-04-20 22:26:43 -04:00
Thomas Harte
af1dc2d3b2 Switches to correct non-value sentinel. 2021-04-20 21:56:58 -04:00
Thomas Harte
1266bbb224 Makes the TMS a sequence-point-generating JustInTimeActor. 2021-04-05 21:02:37 -04:00
Thomas Harte
8a11a5832c Uses GI::AY38910::Utility far and wide. 2021-03-26 23:19:47 -04:00
Thomas Harte
f37f89a7d3 Merge branch 'master' into ZXSpectrum 2021-03-21 22:44:37 -04:00
Thomas Harte
58be770eaa Factors out some boilerplate. 
When I'm confident this is correct, I can fix up the other call sites.
 2021-03-21 00:14:48 -04:00
Thomas Harte
650b9a139b Tweak Master System blue scale. 2021-03-19 08:38:21 -04:00
Thomas Harte
6839e9e3b3 Ensures no double definition of NDEBUG. 2021-03-07 12:52:54 -05:00
Thomas Harte
86fd47545d Silences. 2021-03-03 20:51:33 -05:00
Thomas Harte
71a107fe75 Silences the IWM again, for now. 2021-02-23 21:57:19 -05:00
Thomas Harte
a3e98907ca Removes temporary printf. 2021-02-14 21:03:54 -05:00
Thomas Harte
ee5f45c979 Merge branch 'master' into AppleIIgs 2020-12-29 22:16:23 -05:00
Thomas Harte
dfe4e49110 Ensure proper in-memory ordering of the b72a2c70 ROM. 2020-12-29 22:08:48 -05:00
Thomas Harte
8ace258fbc Tackles outstanding GCC warnings. 2020-11-22 21:43:56 -05:00
Thomas Harte
9b45c5a1cd Resolves out-of-bounds reads. 2020-11-21 22:36:10 -05:00
Thomas Harte
4a42de4f18 Attempts to add 5.25" drive support to the IIgs. 
I want to try some classic software.
 2020-11-20 21:37:17 -05:00
Thomas Harte
98347cb1c3 Starts in the direction of audio support. 2020-11-18 18:39:11 -05:00
Thomas Harte
cddd72876f Flips meaning of ejected bit, to please the IIgs. 2020-11-18 17:20:48 -05:00
Thomas Harte
37815a982a Much logging later, corrects 7Mhz IWM windows. 
Confirmed by mathematics — the new ones are seven-eighths the length of the established 8Mhz windows — and with reference to suitable Apple documentation.
 2020-11-13 22:05:45 -05:00
Thomas Harte
b0fc2f6ecf Amps up logging. 
Current suspicion is that the IIgs isn't getting a clean byte stream, never mind whether my assumption of exactly-Mac-style GCR holds (which it probably doesn't).
 2020-11-12 21:54:54 -05:00
Thomas Harte
81969bbea9 Improves logging, at least for now. 2020-11-12 21:17:14 -05:00
Thomas Harte
1f5908dc51 Corrects logging output. 2020-11-11 20:26:04 -05:00
Thomas Harte
72884c3ead Does a better job of shifting output; takes a new guess at the no-receiver case. 
ROM03 at least now reaches "check startup device!"
 2020-11-11 20:19:35 -05:00
Thomas Harte
80358cf5bd Shift output even if nobody is listening. 2020-11-11 20:04:48 -05:00
Thomas Harte
6d511f01a4 Ensures intended no-drive behaviour; no more risks with dangling pointers or nullptr. 2020-11-11 17:54:21 -05:00
Thomas Harte
6d3d7c6006 It seems like this fix is no longer needed. 2020-11-11 17:30:22 -05:00
Thomas Harte
03d1aff6c0 Fixes 8-bit read/write. 2020-10-30 22:17:55 -04:00
Thomas Harte
034056d0cd Adds full 8-bit clock addressing; stubs clock into the IIgs. 2020-10-29 21:38:36 -04:00
Thomas Harte
1249fb598b Factors Apple's RTC out of the Macintosh. 2020-10-29 21:03:02 -04:00
Thomas Harte
9447aa38be Removes debugging printf. 2020-09-22 22:13:54 -04:00
Thomas Harte
022ec20e75 Tries to add semantic meaning to the various auxiliary control fields. 
To consider: decoding at set?
 2020-09-22 20:50:39 -04:00
Thomas Harte
41f69405d8 Don't decrement timer 1 from the system clock when in PB6 mode. 
TODO: rest of PB6 mode.
 2020-09-21 22:39:49 -04:00
Thomas Harte
8e242eea54 Ensures timer-linked PB7 output is actually output. 2020-09-20 15:03:26 -04:00
Thomas Harte
703065a0a5 Takes a run at timer-linked PB7 output behaviour. 
Seemingly sufficiently to pass the VICE test (which I've transcribed), though with some guesswork.
 2020-09-20 14:51:59 -04:00
Thomas Harte
e807a462a1 My new reading is that only a write to the counter should affect the interrupt flag. 2020-09-17 21:31:29 -04:00
Thomas Harte
18790a90ae Ensures timer 2 doesn't use timed behaviour when in pulse mode. 2020-09-17 21:09:32 -04:00
Thomas Harte
21afc70261 Adds formal data-sheet names. 2020-09-17 19:00:46 -04:00
Thomas Harte
a17d0e428f Protects against some further uninitialised values. 2020-09-16 18:15:57 -04:00
Thomas Harte
bb57f0bcc7 Ensures all 6560 properties have a valid default value. 2020-09-16 17:24:18 -04:00
Thomas Harte
fa95a17af5 Resolves receive_bit_count-unused warnings. 2020-07-24 21:59:27 -04:00
Thomas Harte
8aeebdbc99 Remove redundant comment. 2020-07-16 23:26:45 -04:00
Thomas Harte
1288369865 Merge branch 'master' into FurtherSCC 2020-07-11 23:54:40 -04:00
Thomas Harte
2477752fa4 Adds further [[fallthrough]] attributes. 2020-06-19 23:36:51 -04:00
Thomas Harte
3cb1072c29 Adds an explicit [[fallthrough]] tag. 2020-06-19 23:10:25 -04:00
Thomas Harte
d64b4fbc26 Adds a Qt timer class. Precision seems to be 'acceptable'. 2020-05-31 23:39:08 -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
267006782f Starts to add Qt target; resolves many build warnings. 2020-05-30 00:37:06 -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
66c2eb0414 Further tightens const and constexpr usage. 2020-05-12 22:22:21 -04:00
Thomas Harte
9458963311 Factors out shift by 7. 2020-05-10 13:57:50 -04:00
Thomas Harte
44690b1066 Halves effect of vibrato. 2020-05-10 12:05:14 -04:00
Thomas Harte
64c62c16fb Adjusts tremolo scale. 2020-05-10 00:43:46 -04:00
Thomas Harte
afef4f05fe Adds damping and phase resets for the rhythm section. 2020-05-10 00:10:51 -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
40b60fe5d4 Renames folder as per intended scope. 2020-05-09 18:04:11 -04:00
Thomas Harte
eed357abb4 Introduces concept of 'average peak volume' in order better to normalise audio sources like the OPLL. 2020-05-09 17:57:21 -04:00
Thomas Harte
8f541602c1 Moves modulator updates a sample behind operator updates. 2020-05-08 21:14:25 -04:00
Thomas Harte
668f4b77f3 Implements feedback. 2020-05-08 21:05:23 -04:00
Thomas Harte
303965fbb8 Removes the crutch of my first-attempt implementation. 2020-05-08 20:53:34 -04:00
Thomas Harte
792aed242d Fixes the use-sustain flag. 2020-05-08 20:49:39 -04:00
Thomas Harte
dc5654b941 Attempts to implement the proper attack phase. 
It's sounding pretty good now, but for sustain.
 2020-05-08 18:59:05 -04:00
Thomas Harte
e51e2425cc Attempts to implement decay and release the right way around and with full precision. 
Higher numbers = decay/release more quickly, not more slowly.
 2020-05-08 18:40:49 -04:00
Thomas Harte
95c6b9b55d Declare proper envelope precision. 2020-05-08 17:58:50 -04:00
Thomas Harte
ea25ead19d Ensures rhythm envelope generators don't pick up should_damp state. 2020-05-08 00:18:31 -04:00
Thomas Harte
24100ec3b0 Switches snare and high-hat envelope generators. 2020-05-08 00:08:14 -04:00
Thomas Harte
32437fbf8b Attempts to use the proper rhythm mode envelope generators. 2020-05-07 23:56:15 -04:00
Thomas Harte
5219a86a41 In principle fully implements rhythm mode. 2020-05-07 23:38:51 -04:00
Thomas Harte
e12dc5d894 Reduce the amount of time spent installing instruments. 2020-05-06 00:15:28 -04:00
Thomas Harte
75315406bb Ensure all channels begin in 'release' phase, which is currently code for 'off' in conjunction with attenuation of 511. 2020-05-06 00:13:01 -04:00
Thomas Harte
ea42fe638a Corrects channel attenuation and carrier sustain level settings. 2020-05-05 23:41:15 -04:00
Thomas Harte
744211cec0 Ensures rhythm instruments are installed. 2020-05-05 23:13:13 -04:00
Thomas Harte
1a4321d7d0 Attempts better to balance attenuations. 2020-05-05 22:14:11 -04:00
Thomas Harte
b943441901 Marks up more specific TODOs. 
I think I'm already much happier with this factoring.
 2020-05-05 00:35:03 -04:00
Thomas Harte
0505b82384 Restores top bit of channel period, propagates it to the envelope generator. 2020-05-05 00:28:24 -04:00
Thomas Harte
c9fb5721cd Makes first attempt to reintroduce full-melodic output. 2020-05-05 00:16:45 -04:00
Thomas Harte
386a7ca442 Continues doing away with the attempt heavily to interleave the OPLL and OPL2, creating a new OPLL class. 2020-05-04 21:14:51 -04:00
Thomas Harte
e929d5d819 Ensures proper dereferencing of the std::optional. 2020-05-03 21:57:15 -04:00
Thomas Harte
94614ae4c3 Shifts the LFO implementation inline. 2020-05-03 21:44:22 -04:00
Thomas Harte
1223c99e0f Adds waveform generation logic to the new factoring. 2020-05-03 21:38:20 -04:00
Thomas Harte
1ff5ea0a6e Adds KeyLevelScaler, implements EnvelopeGenerator, adds reset to PhaseGenerator. 2020-05-03 16:24:55 -04:00
Thomas Harte
9d2691d1d2 Taking it as given that outstanding deficiencies are mostly due to poor design, starts breaking out the envelope and phase generators. 2020-05-01 23:46:42 -04:00
Thomas Harte
e4ef2c68bb Feeds through drum volume levels. 2020-04-30 19:35:09 -04:00
Thomas Harte
7fffafdfd4 Wires the high-hat through, possibly incorrectly. 2020-04-29 22:44:15 -04:00
Thomas Harte
c4135fad2b Attempts completely to decouple updates and audio outputs. 2020-04-29 22:07:40 -04:00
Thomas Harte
9f0c8bcae7 Attempts to add the missing noise generators. I think I may still be astray on volumes. 2020-04-26 15:51:33 -04:00
Thomas Harte
2bc36a6cde Eliminates branch within snare output. 2020-04-26 00:21:15 -04:00
Thomas Harte
ee10fe3d2c Fully separates updates and outputs in operators; takes a shot at the snare. 2020-04-26 00:18:09 -04:00
Thomas Harte
a424e867f9 Continues factoring this apart, albeit with a decision on whether to retain update-and-output still pending. 2020-04-25 23:07:40 -04:00
Thomas Harte
f52b40396a Re-ups output level. 
Though it's still quiet compared to the SN.
 2020-04-25 23:07:06 -04:00
Thomas Harte
cd2ab70a58 Moves the LFSR to the LowFrequencyOscillator. 
Possibly I should come up with a better name for that?
 2020-04-25 22:21:42 -04:00
Thomas Harte
65a3783dd2 Attempts the tom tom. 2020-04-25 19:21:55 -04:00
Thomas Harte
b9b5c2a3bc Takes a first run at proper slot mixing and the bass drum. 2020-04-25 18:01:05 -04:00
Thomas Harte
12c618642e Corrects output range. 2020-04-25 00:07:58 -04:00
Thomas Harte
6ebc93c995 Switches to maximum-rate multiplexing. Hopefully to eliminate the mixer as a consideration for now. 2020-04-24 23:50:06 -04:00
Thomas Harte
6d4e29c851 Strips mixer back to basics in search of audio issues. 2020-04-24 23:32:02 -04:00
Thomas Harte
b3979e2fda Looking towards rhythm mode, and in search of bugs: factors out ADSR. 
Further factorings to come.
 2020-04-24 18:48:32 -04:00
Thomas Harte
983c32bf75 Adds vibrato. 
This would complete melodic output, subject to bug fixes.
 2020-04-24 18:02:41 -04:00
Thomas Harte
9e3614066a Adds tremolo support, switches to global timer for ADSR stages other than attack. 2020-04-23 23:55:49 -04:00
Thomas Harte
c7ad6b1b50 Minor layout and commenting improvements. 2020-04-21 23:35:48 -04:00
Thomas Harte
676dcf7fbb Calculates the proper key scale rate, though ADSR itself is still lacking that precision. 2020-04-21 22:57:56 -04:00
Thomas Harte
50d725330c Adds missing header. 2020-04-21 22:48:52 -04:00