1682 Commits

Author	SHA1	Message	Date
Thomas Harte	9c359627f3	Add optional initial shift delay.	2025-11-18 22:47:19 -05:00
Thomas Harte	176bda9eb8	Merge pull request #1637 from TomHarte/Voice3Off ... SID: support the voice 3 disable bit.	2025-11-14 19:35:05 -05:00
Thomas Harte	9f0a0443a8	SID: support the voice 3 disable bit.	2025-11-14 15:38:54 -05:00
Thomas Harte	909fa57b27	Record references for the SID and biquad filter.	2025-11-14 13:29:15 -05:00
Thomas Harte	c4fe38a61f	Allow potentometer inputs to be set; disable SID by default.	2025-11-13 18:05:13 -05:00
Thomas Harte	c9c1bde6e2	Switch to spinning on SID thread synchronisation.	2025-11-13 17:59:24 -05:00
Thomas Harte	d01e1f3bb1	Block and synchronise threads for voice 3 readback.	2025-11-13 17:34:57 -05:00
Thomas Harte	fd32e63459	Clean up: pull out noise generation, remove code from header.	2025-11-13 13:44:53 -05:00
Thomas Harte	dbbb1d60fc	Add commentary, use filter reconfiguration to retain sample history.	2025-11-13 13:27:55 -05:00
Thomas Harte	1ce013bcf7	Simplify, update noise tap.	2025-11-13 11:59:56 -05:00
Thomas Harte	86bf019aac	Attempt further to improve filter precision.	2025-11-13 11:54:37 -05:00
Thomas Harte	d00546dd77	Add post hoc filter, attempt to juice precision.	2025-11-13 07:31:59 -05:00
Thomas Harte	cf33e17688	Attempt to use biquad filter; fix signs.	2025-11-12 23:08:35 -05:00
Thomas Harte	c5c6c5ff72	Add textbook filter construction.	2025-11-12 22:06:48 -05:00
Thomas Harte	fa0835abd8	Capture all filter parameters.	2025-11-12 17:47:49 -05:00
Thomas Harte	f232b179ed	Partition channels into filtered and unfiltered, and apply no-op biquad.	2025-11-12 17:40:14 -05:00
Thomas Harte	a4a0026cab	Reintroduce decay stage; flip pulse meaning.	2025-11-11 21:38:27 -05:00
Thomas Harte	eac7493180	Support master volume.	2025-11-11 21:04:07 -05:00
Thomas Harte	989fb32fba	Fix clocking, do a linear attack phase.	2025-11-11 20:53:54 -05:00
Thomas Harte	735afcfabb	Adopt painful pulse test, temporarily (?).	2025-11-11 18:26:00 -05:00
Thomas Harte	37152a1fad	Start testing; I'm now unsure about pulses.	2025-11-11 17:54:31 -05:00
Thomas Harte	d23dbb96c2	Support system volume, avoid clipping.	2025-11-11 14:40:04 -05:00
Thomas Harte	4586e4b4c1	Apply envelope.	2025-11-11 14:26:53 -05:00
Thomas Harte	de5cdbf18c	Make a complete attempt at ADSR.	2025-11-11 14:25:36 -05:00
Thomas Harte	8c2294fc0d	Treat sustain as a volume; start second prescaler table.	2025-11-11 12:43:48 -05:00
Thomas Harte	b0b82782ad	Build in initial prescaler.	2025-11-11 12:21:49 -05:00
Thomas Harte	b9f5802c89	Return whatever was written last if read.	2025-11-11 09:19:01 -05:00
Thomas Harte	29235f1276	Adjust noise clocking, make it reactive to the test bit.	2025-11-11 09:16:43 -05:00
Thomas Harte	8c74e2a323	Implement LFSR.	2025-11-10 22:44:00 -05:00
Thomas Harte	ae2936b9c3	Correct clock rate, triangle wave.	2025-11-10 22:35:13 -05:00
Thomas Harte	0d295a6338	Don't capture a reference to parameters.	2025-11-10 22:10:28 -05:00
Thomas Harte	3ebd6c6871	Rejig oscillators, output some vague noise.	2025-11-10 21:52:10 -05:00
Thomas Harte	6e2cd0ace6	Divide state, start adding waveforms.	2025-11-10 17:27:32 -05:00
Thomas Harte	af82a0bcda	Add ADSR TODO.	2025-11-10 14:18:24 -05:00
Thomas Harte	6fe208ae77	Honour test and sync bits.	2025-11-10 14:17:54 -05:00
Thomas Harte	7dfd5ea0d0	Add phase accumulation, rename to pitch.	2025-11-10 13:27:43 -05:00
Thomas Harte	0cc5a9d74f	Move thread.	2025-11-08 23:02:54 -05:00
Thomas Harte	5e98e6502d	Attempt some basic voice details.	2025-11-08 21:54:41 -05:00
Thomas Harte	fe7a206fc5	Add an empty vessel of a SID.	2025-11-07 22:51:28 -05:00
Thomas Harte	b00be303aa	Remove dead state.	2025-11-07 13:08:12 -05:00
Thomas Harte	7658edca62	Remove unused enum.	2025-11-07 10:49:26 -05:00
Thomas Harte	056028e07b	Put bit restriction on register pointer.	2025-11-07 10:43:14 -05:00
Thomas Harte	7e43b40415	Merge pull request #1617 from TomHarte/NoWarnings ... Resolve x86-related build warnings plus various whitespace deficiencies.	2025-10-29 12:16:53 -04:00
Thomas Harte	c5dc65fc61	Resolve various whitespace errors.	2025-10-29 11:50:56 -04:00
Thomas Harte	45d0f101a7	Switch the BBC Micro to 6502Mk2.	2025-10-26 21:04:59 -04:00
Thomas Harte	2eb94f1b66	Return 0 for write-only and nonexistent registers.	2025-10-20 13:26:22 -04:00
Thomas Harte	8c7f2491d7	Eliminate CompileTimeCounter.	2025-10-19 19:36:36 -04:00
Thomas Harte	287ff99bbc	Use Numeric::Counter.	2025-10-17 15:06:05 -04:00
Thomas Harte	0bbfcedabb	Alphabetise includes.	2025-10-17 15:05:52 -04:00
Thomas Harte	812e1e637d	Eliminate magic constant.	2025-10-17 11:22:02 -04:00