31 Commits

Author	SHA1	Message	Date
Thomas Harte	2b0415d552	Attempt to avoid off-by-one buffer reads, add modulation.	2021-12-06 19:28:40 -05:00
Thomas Harte	066e4421e8	Attempt volcntrld.	2021-12-06 06:35:08 -05:00
Thomas Harte	f02a241249	Inserts an additional reload.	2021-12-05 17:47:12 -05:00
Thomas Harte	a5fe1e4259	Largely debugs audio state machine. ... I think I'm still missing an address reload somewhere though, and attachment doesn't actually push.	2021-12-05 15:27:35 -05:00
Thomas Harte	9b80563443	Exposes targets for modulation.	2021-12-05 06:38:55 -05:00
Thomas Harte	91b5da06e3	Perform reload on Disabled -> WaitingForDummyDMA.	2021-12-04 19:17:40 -05:00
Thomas Harte	7320f96ae7	Capture attachment flags.	2021-12-04 18:02:43 -05:00
Thomas Harte	fdf2b9cd7b	Add local data pointers.	2021-12-04 17:58:41 -05:00
Thomas Harte	3b027c4593	Switch and -> or for testing transitions from ::PlayingLow.	2021-12-04 08:24:41 -05:00
Thomas Harte	42d3bdd373	Adds a begin_state template.	2021-12-04 07:20:17 -05:00
Thomas Harte	57789092c1	Keep audio fetches in bounds.	2021-12-03 07:16:21 -05:00
Thomas Harte	6bc5268cbd	Reload period counter on low -> high transition.	2021-12-02 18:43:02 -05:00
Thomas Harte	e6fe36f45c	Add buffer-length assert; add <tuple> where std::tuple_size is used.	2021-12-02 12:53:20 -05:00
Thomas Harte	06b6f85d55	Correct stereo.	2021-12-02 11:15:29 -05:00
Thomas Harte	d6f1ea50a6	Switch to slightly more straightforward presumption of no data wanted.	2021-12-02 09:41:16 -05:00
Thomas Harte	9554869886	Simplify DMA logic.	2021-12-02 09:33:02 -05:00
Thomas Harte	364059551c	Add extra notes per errata, plus bonus state code repetitions.	2021-12-02 09:30:52 -05:00
Thomas Harte	06340b1ad7	Advance DMA pointer, treat audio as signed, request data on low -> high transition. ... There's now some audio, sometimes when there should be. But it's not correct.	2021-12-01 18:34:54 -05:00
Thomas Harte	d23511860d	Attempts audio output.	2021-12-01 06:01:58 -05:00
Thomas Harte	a8dd4660b2	Adds a pipeline for audio output.	2021-12-01 05:37:58 -05:00
Thomas Harte	2a3a7fa8a0	Reset will_request_interrupt.	2021-11-15 16:00:35 -05:00
Thomas Harte	50a6496399	Avoids over-greedy DMA.	2021-11-15 12:31:15 -05:00
Thomas Harte	c99dee86dd	Adds missing low -> high actions, implements more transitions.	2021-11-15 12:29:32 -05:00
Thomas Harte	0c5bb9626b	Separates state transitions and tests.	2021-11-15 05:29:28 -05:00
Thomas Harte	a9971917f5	Attempts a translation of Commodore's documentation.	2021-11-14 14:54:33 -05:00
Thomas Harte	4c62611da3	Adds enough state machine to get into the near-incomprehensible stuff on the right.	2021-11-14 10:48:50 -05:00
Thomas Harte	47f36f08fb	Switches to a synchronous audio state machine; renames advance -> advance_dma. ... I can worry about how to just-in-time things once I better understand the hardware in general.	2021-11-13 15:53:41 -05:00
Thomas Harte	f906bab1a5	Provides feedback on interrupt flags, starts on state machine.	2021-11-13 11:05:39 -05:00
Thomas Harte	fffc03c4e4	Propagates time to the audio subsystem.	2021-11-12 15:30:52 -05:00
Thomas Harte	0a94184d6b	Provides a greater wealth of audio data.	2021-11-11 09:24:15 -05:00
Thomas Harte	7be3578497	Adds a target for audio writes.	2021-11-09 07:11:23 -05:00