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1533 Commits

Author SHA1 Message Date
Thomas Harte
8f5c7fcabc Merge branch 'MSX2' of github.com:TomHarte/CLK into MSX2 2023-02-01 22:25:12 -05:00
Thomas Harte
115acf835e Vertical state is actually tristate. 2023-02-01 22:25:00 -05:00
Thomas Harte
c0fec8db15 Clean up macro. 2023-02-01 15:05:21 -05:00
Thomas Harte
f0e70f18fd Fix seeding of output_pointer_. 2023-02-01 14:59:42 -05:00
Thomas Harte
9d2841bf6a Reenable full ram pointer capture. Thanks @PatrickvL ! 2023-02-01 14:55:33 -05:00
Thomas Harte
4cc34fd557 Resolve GCC complaint. 2023-02-01 14:28:19 -05:00
Thomas Harte
3636383b1f Silence abstract/non-virtual-destructor warning. 2023-02-01 14:20:11 -05:00
Thomas Harte
1264600bab Shorten long lines. 2023-02-01 14:18:36 -05:00
Thomas Harte
002d27d9c2 Resolve various type conversion errors, and reduce duplication. 2023-02-01 14:17:49 -05:00
Thomas Harte
90e8ce3253 Fix lines. 
TODO: determine whether I really need `location` as distinct from `.destination`.
 2023-01-31 21:33:57 -05:00
Thomas Harte
a315384e30 Provide context for byte-by-byte commands. 2023-01-31 21:29:55 -05:00
Thomas Harte
c5c722ae56 Generalise axis steps; begin HMMV. 2023-01-31 13:35:39 -05:00
Thomas Harte
872b9e5021 Predict Yamaha horizontal retrace interrupts. 2023-01-30 21:33:47 -05:00
Thomas Harte
492a170b20 Implement much of Yamaha line interrupts. 2023-01-30 21:24:53 -05:00
Thomas Harte
30a2b1611f Merge branch 'MSX2' of github.com:TomHarte/CLK into MSX2 2023-01-30 21:06:23 -05:00
Thomas Harte
29af5542f8 Make an effort at doing _something_ for G4. 2023-01-30 21:06:04 -05:00
Thomas Harte
bc4c54800e Type out just a little of status register 1. 2023-01-30 20:20:33 -05:00
Thomas Harte
8f20cb93e9 Note missed status accesses. 2023-01-29 21:20:50 -05:00
Thomas Harte
73e79b14ea Use Yamaha palette pervasively. 2023-01-29 21:17:00 -05:00
Thomas Harte
3142f5c21d Be overt about what replaces LineMode. 2023-01-29 21:04:15 -05:00
Thomas Harte
6d7f189ce7 Attempt the full panoply of logical pixel modes, across all graphics modes. 2023-01-29 18:28:49 -05:00
Thomas Harte
a91a5b8d07 Refer to actual field. 2023-01-29 18:02:09 -05:00
Thomas Harte
4cdcd3ac7d Retain logical operation, take colour combination outside the loop. 2023-01-29 13:29:19 -05:00
Thomas Harte
0576451102 Be overt about colour direction. 2023-01-29 13:22:56 -05:00
Thomas Harte
3f12a28f4f Locate first pixel correctly. 2023-01-28 22:50:04 -05:00
Thomas Harte
41ba883fb6 Honour direction, start transfer immediately. 2023-01-28 22:47:27 -05:00
Thomas Harte
1e646eb57b Improve transfer flag for LMMC. 2023-01-28 21:45:05 -05:00
Thomas Harte
2d6afe1013 Reduce repetition, tidy slightly. 2023-01-28 21:43:14 -05:00
Thomas Harte
d3c446d91b Take a shot at LMMC. 2023-01-28 21:30:45 -05:00
Thomas Harte
975ead5d01 Edge towards not assuming graphics mode. Much more to do here. 2023-01-28 13:54:26 -05:00
Thomas Harte
c6cda7c401 Switch to absolute placement of deferred events; properly serialise commands. 2023-01-28 11:55:12 -05:00
Thomas Harte
7e69e33ec2 Use paletted Yamaha border colour. 2023-01-27 22:42:02 -05:00
Thomas Harte
95e00dd958 Take slightly wrong-headed steps towards proper command timing. 2023-01-27 22:20:36 -05:00
Thomas Harte
8a673a697b Further adapt internal terminology. 2023-01-27 12:30:09 -05:00
Thomas Harte
75ad4cdb67 Fix line semantics. 2023-01-27 11:57:40 -05:00
Thomas Harte
d42b6df570 Retain extra pattern name address bits. 2023-01-27 06:44:11 -05:00
Thomas Harte
81b00c6d97 Add notes. 2023-01-26 22:25:10 -05:00
Thomas Harte
1e5f751bc0 Require STOP in order to stop. 2023-01-26 22:08:36 -05:00
Thomas Harte
9a65fffe16 That's PSET, not POINT. 2023-01-26 22:02:40 -05:00
Thomas Harte
515fa22bfe Implement point. 2023-01-26 21:52:41 -05:00
Thomas Harte
66ac089cc2 Deallocate. 2023-01-26 21:49:32 -05:00
Thomas Harte
5d5098acb2 Hack in vertical scrolling. 2023-01-26 21:38:51 -05:00
Thomas Harte
1bf8406e7e Correct deserialisation order. 2023-01-26 21:34:56 -05:00
Thomas Harte
75acbd2d6c A quick hack shows some part of the MSX logo. 2023-01-26 21:31:49 -05:00
Thomas Harte
baa6f9b3cd Implements the Command side of the line command. 2023-01-26 21:17:11 -05:00
Thomas Harte
1c6a0ad3f7 Clean up repetition. 2023-01-26 19:51:56 -05:00
Thomas Harte
fbfa26ad5e Minor steps towards implementing Line. 2023-01-26 12:55:08 -05:00
Thomas Harte
b12fd00145 Generate an appropriate instance for line drawing. 2023-01-26 12:09:06 -05:00
Thomas Harte
0c8815d6a0 Retain command-engine context. 2023-01-26 11:59:27 -05:00
Thomas Harte
700470915a Add pixel serialisation for Yamaha graphics mode 5. 2023-01-24 23:07:29 -05:00
Thomas Harte
f8b42d4107 While being lazy with types, implement 4/5/6/7 fetching. 2023-01-24 13:15:00 -05:00
Thomas Harte
63bd0f918d Be overt about buffer target and vertical position. 2023-01-24 12:46:09 -05:00
Thomas Harte
445b34933a Edge further towards actual fetching. 2023-01-23 23:19:04 -05:00
Thomas Harte
6b85ee9607 Months seem to start at 1; also fix seeded year for MSX. 2023-01-23 22:52:26 -05:00
Thomas Harte
bbd8b011ba Remove temporarily-faulty check. 2023-01-23 22:52:03 -05:00
Thomas Harte
15fbf4cb7f Ensure Yamaha-style refresh is used in all modes. 2023-01-23 22:39:34 -05:00
Thomas Harte
7293f9dc10 Remove extraneous brackets, add comment to self. 2023-01-23 22:25:56 -05:00
Thomas Harte
8567c934b1 Ensure Yamaha refresh program is used. 2023-01-22 22:11:01 -05:00
Thomas Harte
2744a9b6b0 Tidy up. 2023-01-22 22:02:39 -05:00
Thomas Harte
91047e5b3a Start attempting to use table-based Yamaha fetch. 2023-01-22 22:00:28 -05:00
Thomas Harte
c6dd7d4726 Transcribe no-sprite event list. 2023-01-22 20:19:21 -05:00
Thomas Harte
b7d80f5ed1 Copy in some notes, expand line buffer. 2023-01-21 23:04:48 -05:00
Thomas Harte
a5765abbad Route into the Yamaha fetcher. 
Albeit that it doesn't yet fetch.
 2023-01-21 22:47:16 -05:00
Thomas Harte
696ec12516 Add address rotation for applicable modes. 2023-01-21 22:33:26 -05:00
Thomas Harte
c9734df65c Implement extended colour, sprite and RAM pointers. 2023-01-21 20:45:23 -05:00
Thomas Harte
13e490e7d7 Log selected screen mode. 2023-01-21 14:48:55 -05:00
Thomas Harte
cefcc1d443 Expand Yamaha graphics mode recognition. 2023-01-21 14:35:26 -05:00
Thomas Harte
d1f929e6f7 Just do a multiply and divide. Easy. 2023-01-21 14:19:52 -05:00
Thomas Harte
e289e6e757 Catch and map Yamaha palette entries. 
It's one less thing in the uncaptured log.
 2023-01-21 14:12:46 -05:00
Thomas Harte
a726c9d97a Enable indirect register writes. 2023-01-20 23:14:57 -05:00
Thomas Harte
c77e7c268f 1 = disable, 0 = enable. 2023-01-20 23:08:41 -05:00
Thomas Harte
9c57bfd58d Attempt to log dropped indirect writes. 2023-01-20 23:07:14 -05:00
Thomas Harte
4efda108c6 Transcribe the Yamaha 9938 register meanings. 2023-01-20 23:00:33 -05:00
Thomas Harte
191cf4829b Attempt real blank reporting. 2023-01-20 22:29:49 -05:00
Thomas Harte
9b7a925816 Give clearer names to the two pointers. 2023-01-20 20:29:15 -05:00
Thomas Harte
392b0acb58 Pull everything out of master_system_ struct. 
Now that it's inherently collected in the relevant `Storage`.
 2023-01-19 15:09:16 -05:00
Thomas Harte
4b7606894e Move Master System state, and start simplifying. 2023-01-19 14:09:31 -05:00
Thomas Harte
1fb94d15ab No need for this-> ugliness in Base methods. 2023-01-19 12:32:42 -05:00
Thomas Harte
348c42bdea Start trying to bluff my way through extended status. 2023-01-18 22:23:19 -05:00
Thomas Harte
e450e53c4e Temporarily copy and paste my way to further logging. 2023-01-18 14:59:30 -05:00
Thomas Harte
355ee7fbc7 Adjust factoring of read and write per expanded V9938 scope. 2023-01-18 12:36:57 -05:00
Thomas Harte
7b25fe5f61 Make read consistent. 2023-01-17 21:18:56 -05:00
Thomas Harte
194b5bc36a Attempt to deal with hours correctly. 2023-01-17 21:12:00 -05:00
Thomas Harte
6f973fc605 Attempt some use of NumericCoder. 2023-01-17 18:53:26 -05:00
Thomas Harte
bb6ceafe0e Implement the easy writes. 2023-01-16 22:31:03 -05:00
Thomas Harte
55e73cb812 Implement most of reading. 2023-01-16 22:25:20 -05:00
Thomas Harte
f0db676a10 Be consistent in use of C parts. 2023-01-16 20:29:32 -05:00
Thomas Harte
32b29bd63b Transcribe all missing registers. 2023-01-16 20:26:27 -05:00
Thomas Harte
bfe94eb268 Seed date and time with current. 2023-01-16 20:11:42 -05:00
Thomas Harte
ced002125e Make a basic attempt at RAM. 2023-01-14 14:58:12 -05:00
Thomas Harte
1e17fc71ab Add an RP-5C01 to the MSX 2. 2023-01-14 14:52:07 -05:00
Thomas Harte
48a4355592 Start sketching out an RP5C01. 2023-01-14 14:17:28 -05:00
Thomas Harte
3bc38d35c9 Fix include order. 2023-01-14 14:16:56 -05:00
Thomas Harte
4d96122884 Eliminate hard-coded assumption of 16kb. 
Clearly I'll have to do something else to support 128k+, probably move the ram pointer?
 2023-01-10 12:38:19 -05:00
Thomas Harte
f1f16d1f9a Clarify and simplify half_cycles_before_internal_cycles. 2023-01-09 22:55:46 -05:00
Thomas Harte
fd14829992 Avoid hand-writing all the various conversions. 2023-01-09 22:34:56 -05:00
Thomas Harte
c0fe88a5bb Apply clock conversion to existing usages of do_external_slot. 2023-01-09 13:54:49 -05:00
Thomas Harte
4d9d684618 Add TODO on dangling hard-coded conversion. 2023-01-08 21:44:25 -05:00
Thomas Harte
a0a835cf10 Export memory size into traits. 2023-01-08 21:37:20 -05:00
Thomas Harte
ef67205ce8 Set pixel count per mode. 2023-01-08 21:31:00 -05:00
Thomas Harte
794adf470b Break assumption that cycles = pixels; fix pixel clocking. 2023-01-08 21:25:22 -05:00
Thomas Harte
8cc20844a9 Clock convert for draw_ calls. 2023-01-08 17:31:08 -05:00
Thomas Harte
b522d65c50 Fix border lengths. 2023-01-08 17:04:19 -05:00
Thomas Harte
cb19c2ffb0 Honour internal-clocked timing constants. 2023-01-08 14:10:06 -05:00
Thomas Harte
5f6ddf8557 Avoid expressing the same thing at different clock rates. 2023-01-08 13:58:12 -05:00
Thomas Harte
72e0bfecc1 Edge towards clock-independent line composition. 2023-01-07 14:57:32 -05:00
Thomas Harte
cdf547ac82 Decline to provide synthetic text mode timing on the Mega Drive. 2023-01-07 14:37:06 -05:00
Thomas Harte
dd5b4b484a Avoid double responsibility for state. 2023-01-07 14:34:33 -05:00
Thomas Harte
56831e02fc Expand fixed timing constants. 2023-01-07 13:10:51 -05:00
Thomas Harte
5d2d3944ef Make VRAM access delay a timing property. 2023-01-07 12:48:43 -05:00
Thomas Harte
f9e21df701 Avoid further hard-coded 342s. 2023-01-07 09:13:34 -05:00
Thomas Harte
bb436204f6 Merge branch 'VDPs' of github.com:TomHarte/CLK into VDPs 2023-01-07 09:10:50 -05:00
Thomas Harte
de45536b5c Elucidate a magic constant, add an extra constexpr. 2023-01-07 09:10:41 -05:00
Thomas Harte
ebc1264c2c Create a common home for timing information. 2023-01-06 22:39:46 -05:00
Thomas Harte
4875148617 Fill in Mega Drive numbers. 2023-01-05 14:22:51 -05:00
Thomas Harte
7a82b76911 Ensure visibility of memset. 2023-01-05 13:21:03 -05:00
Thomas Harte
27d37f71ec Generalise and better factor bit reversal and TMS drawing. 2023-01-05 13:18:10 -05:00
Thomas Harte
c4a5a9763e Minor indentation improvement. 2023-01-02 15:04:50 -05:00
Thomas Harte
a9f97ac871 Fix nothing-to-do test. 2023-01-02 15:04:08 -05:00
Thomas Harte
475440dc70 Update ClockConverter for potential alternative clocks. 2023-01-02 14:59:36 -05:00
Thomas Harte
dc3f8f5e42 These are the three fetchers to implement. 
They'll look fairly different from the TMS and SMS fetchers, I think, owing to the greater irregularity that comes with the smarter RAM accesses. I might need to play around for a while.
 2023-01-01 22:44:06 -05:00
Thomas Harte
459ef39b08 constexpr the TMS palette. 2023-01-01 22:34:07 -05:00
Thomas Harte
27812fd0e2 Separate fetchers into their own header. 2023-01-01 22:26:50 -05:00
Thomas Harte
38eb4d36de Better explain cumulative nature of @c to_internal. 2023-01-01 22:18:39 -05:00
Thomas Harte
2bd20a0cf8 Add further exposition. 2023-01-01 22:17:21 -05:00
Thomas Harte
da61909ec5 Explain the purpose here. 2023-01-01 21:20:30 -05:00
Thomas Harte
5729ece7bb Incompletely transitions towards more flexible clock ratios. 2023-01-01 14:20:45 -05:00
Thomas Harte
151f60958e Relocate the 9918 implementation file. 2023-01-01 14:01:19 -05:00
Thomas Harte
180045ada6 Convert vram_access_delay into a free-standing function. 2023-01-01 13:51:52 -05:00
Thomas Harte
11542e7a7f Improve const correctness, simplify inheritance. 2023-01-01 13:49:11 -05:00
Thomas Harte
71598250ea Improve commentary. 2023-01-01 13:41:51 -05:00
Thomas Harte
ffb0b2ce0b Eliminate runtime duplication of personality. 2022-12-31 21:50:57 -05:00
Thomas Harte
b7c315058f Also template Base. 2022-12-31 21:47:05 -05:00
Thomas Harte
7d6eac2895 Template the TMS on its personality. 
Template parameter currently unused, but preparatory to other improvements.
 2022-12-31 15:08:33 -05:00
Thomas Harte
d79aac3081 Shuffle the personality enum into the 'public' header. 2022-12-31 15:01:11 -05:00
Thomas Harte
8d5547dc9e Minor further style improvements. 
... as I refamiliarise myself.
 2022-12-29 22:09:14 -05:00
Thomas Harte
5d89293c92 Improve constness, primarily of reverse_table. 2022-12-29 11:29:19 -05:00
Thomas Harte
711f7b2d75 C++17 makes this a single step. 2022-12-27 22:50:12 -05:00
Thomas Harte
dca8c51384 Prefer to avoid a macro. 2022-12-27 22:36:27 -05:00
Thomas Harte
462b7dcbfa Add Mega Drive VRAM size. 2022-12-27 22:28:43 -05:00
Thomas Harte
2ab4b351ca Extend enum. 2022-12-27 22:20:47 -05:00
Thomas Harte
99ced5476f Add quick clock-rate notes. 2022-12-26 22:56:45 -05:00
Thomas Harte
fea8fecf11 Continue DMA requests if writing, even after a phase mismatch. 2022-09-15 16:46:22 -04:00
Thomas Harte
beca7a01c2 Treat a phase mismatch as ending DMA. 2022-09-15 16:34:06 -04:00
Thomas Harte
2d8e260671 Take a shot at the phase mismatch IRQ. 2022-09-15 16:24:06 -04:00
Thomas Harte
04f5d29ed9 Improve logging, factor out phase_matches per TODO comment. 2022-09-15 16:14:14 -04:00
Thomas Harte
df29a50738 Attempt to support the DMA interface. 2022-08-31 15:33:48 -04:00
Thomas Harte
ea4bf5f31a Provide card's SCSI ID. 2022-08-23 15:05:36 -04:00
Thomas Harte
8f2e94a1d8 Switch name back to emphasise _async_. 2022-07-16 14:41:04 -04:00
Thomas Harte
bf03bda314 Generalise AsyncTaskQueue, DeferringAsyncTaskQueue and AsyncUpdater into a single template. 2022-07-14 16:39:26 -04:00
Thomas Harte
55af6681af Avoid unnecessary get_port_input calls. 2021-11-24 17:15:48 -05:00
Thomas Harte
2a7a42ff8f Add header for assert. 2021-11-24 16:28:18 -05:00
Thomas Harte
0ad1529f3f Retain delegate bit length for non-self-clocked data. 2021-11-24 16:15:27 -05:00
Thomas Harte
0df8173536 Merge branch 'master' into Amiga 2021-11-24 08:58:03 -05:00
Thomas Harte
f5d3d6bcea Splits the lowpass filter into push and pull variants. 2021-11-21 15:37:29 -05:00
Thomas Harte
4fc25fb798 Adds basic shift input. 2021-11-07 05:18:54 -08:00
Thomas Harte
941d9a46a2 Makes a better effort at exposition; better implements clocked line. 2021-11-07 05:18:40 -08:00
Thomas Harte
ecfe68d70f Introduce the principle that a Serial::Line can be two-wire — clock + data. 2021-11-06 16:54:20 -07:00
Thomas Harte
f102d8a4b4 Extend to allow full-[byte/word/dword] writes, in LSB or MSB order. 2021-11-06 12:01:32 -07:00
Thomas Harte
6d34432988 Starts to build in a serial line for input. 2021-11-04 18:54:28 -07:00
Thomas Harte
b827b9e33e Add necessary shift storage. 2021-11-03 19:26:45 -07:00
Thomas Harte
29e5ecc282 Add TODOs rather than complete stop on shift register acccesses. 2021-11-02 18:19:31 -07:00
Thomas Harte
9ecd43238f Correct 8520 TOD setting and getting. 2021-10-30 12:02:43 -07:00
Thomas Harte
5ffe71346c Eliminate interrupt magic constants. 2021-10-29 19:04:06 -07:00
Thomas Harte
d9d20d9d30 Walk back slightly. 2021-10-14 18:02:58 -07:00
Thomas Harte
689bfbbdb3 Be overt in initialiser list. 2021-10-14 16:57:26 -07:00
Thomas Harte
eb157f15f3 Adds index hole interrupt. 2021-10-09 04:08:59 -07:00
Thomas Harte
73e45511dc Add missing #include. 2021-10-04 05:26:38 -07:00
Thomas Harte
e47eab1d40 Merge branch 'master' into Amiga 2021-09-14 20:27:59 -04:00
Thomas Harte
dfcd1508c9 Establishes valid initial BRAM. 2021-09-10 19:56:20 -04:00
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
Thomas Harte
2886dd1dae Collapses key-level scaling to a single 2d table. 
I dare imagine I can do better; the columns in particular look like arithmetic progressions.
 2020-04-21 20:19:02 -04:00
Thomas Harte
40424ac38b Re-enables key-level scaling, with 3db and 1.5db the correct way around. 2020-04-21 20:10:40 -04:00
Thomas Harte
a4d3865394 Decreases sustain level attenuation; disables key-level scaling for now. 
The latter was definitely wrong, I also think I don't need the big four tables.
 2020-04-21 19:58:40 -04:00
Thomas Harte
bdce1c464a Takes a shot at key-level scaling. Testing to come. 2020-04-21 00:09:42 -04:00
Thomas Harte
475d75c16a Preserves fractional part of modulator phase. 2020-04-20 23:35:37 -04:00
Thomas Harte
32fd1897d0 Via a unit test, confirms and fixes relative volumes of OPLL channels. 
Also rejigs responsibility for scaling to emulator-standard volume.
 2020-04-20 23:17:29 -04:00
Thomas Harte
f19fd7c166 Pulls out common melodic update calls. 2020-04-20 18:58:31 -04:00
Thomas Harte
100fddcee1 Corrects divider, takes another whack at ADSR. 2020-04-20 18:58:10 -04:00
Thomas Harte
99fa86a67e Adds a test for lookup sine. And fixes lookup sine. 2020-04-20 18:40:47 -04:00
Thomas Harte
6568c29c54 Improves commentary. 2020-04-19 22:42:25 -04:00
Thomas Harte
c54bbc5a04 Rename Table.h; LogSin -> LogSign and make it a bit more typer. 2020-04-19 13:33:17 -04:00
Thomas Harte
92d0c466c2 Moves complete phase -> output calculation inside Operator. 
Reasoning being: otherwise I wasn't currently enforcing non-sine waveforms.
 2020-04-19 13:27:24 -04:00
Thomas Harte
020c760976 Simplifies the phase counter. 2020-04-19 00:30:14 -04:00
Thomas Harte
cdfd7de221 Minor: enables all melodic channels when rhythm mode is disabled; supports non-modulated channels. 2020-04-18 17:48:29 -04:00
Thomas Harte
3da2e91acf Adjusts range of output, makes declaration of level full owner of type information. 2020-04-17 23:29:09 -04:00
Thomas Harte
3948304172 Attempts to use table-based maths. 2020-04-17 23:23:16 -04:00
Thomas Harte
4a295cd95e Wraps log_sin in an access function to enshrine sign and mask rules; switches both functions to non-math.h clashing names. 2020-04-17 23:22:42 -04:00
Thomas Harte
6f7c8b35c5 Applies an ahead-of-time transformation to the exp table, and wraps it in a helper function. 2020-04-17 22:33:13 -04:00
Thomas Harte
e58ba27c00 Clarifies meaning of scaling. Though it isn't yet applied. 2020-04-17 22:30:10 -04:00
Thomas Harte
0aceddd088 Starts tidying up the OPL2. 
This is as a precursor to switching to using the proper table lookups, which I hope will automatically fix my range issues.
 2020-04-15 22:10:50 -04:00
Thomas Harte
30ff399218 With some fixes for scale, I think possibly this is close for melodic channels. 2020-04-15 21:27:27 -04:00
Thomas Harte
a7e63b61eb Just from printing numbers: corrects transition from attack to decay. 2020-04-15 00:26:01 -04:00
Thomas Harte
b13b0d9311 Starts towards implementing some OPL test cases. 2020-04-14 23:51:45 -04:00
Thomas Harte
d8380dc3e2 Tries to be a little neater in spelling out the work here. 
I think I'm somewhat circling here now; I need to think of a way of getting clean comparison data.
 2020-04-14 21:55:42 -04:00
Thomas Harte
d805e9a8f0 Actually, octave probably works this way around? Higher octaves = higher frequencies. 2020-04-14 21:39:12 -04:00
Thomas Harte
aa45142728 Endeavours to fix attenuation and add FM synthesis. 
I now definitely think my frequency counting is wrong.
 2020-04-14 18:32:06 -04:00
Thomas Harte
09d1aed3a5 Attempts to voice the current attenuation (and, therefore, the ADSR output), even if linearly rather than logarithmically. 2020-04-13 22:12:55 -04:00
Thomas Harte
a1f80b5142 Takes a stab at per-operator ADSR. 
Heavy caveats apply: no KSR is applied, non-ADSR attenuation isn't applied, attenuation isn't voiced in general.
 2020-04-13 21:39:06 -04:00
Thomas Harte
d3fbdba77c Add missing #include. 2020-04-12 14:20:02 -04:00
Thomas Harte
632d797c9d Adjusts frequency formula. This could be close. 
I guess next I need to get ADSR/volume in general working, before I can go FM? Then I'll worry about using the proper log-sin/exp tables.
 2020-04-12 14:15:09 -04:00