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7,520 Commits 9 Branches 121 Tags 498 MiB
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41 Commits

Author SHA1 Message Date
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
267006782f Starts to add Qt target; resolves many build warnings. 2020-05-30 00:37:06 -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
9835e800ec Fixed: individual audio generators now either are or are not stereo. The speaker acts accordingly. 2020-02-16 18:28:03 -05:00
Thomas Harte
89d6b85b83 Adds optional stereo output for the AY. 
The real chip provides the three tone channels as separate outputs, so a variety of different mixings can exist.
 2020-02-15 18:09:17 -05:00
Thomas Harte
206ab380c7 Introduces double-resolution envelopes for the Atari ST. 2019-12-18 22:03:02 -05:00
Thomas Harte
d85ae21b2f Adds an explicit declaration of chip type to all AY users. 2019-12-18 19:28:41 -05:00
Thomas Harte
f79c87659f Corrects documentation error. 2019-10-20 20:38:55 -04:00
Thomas Harte
62a1d69cee Implements proper AY IO output behaviour. 2019-03-05 20:20:26 -05:00
Thomas Harte
df8c896193 Removes unused state and implements AND output readback. 2018-06-26 19:31:16 -04:00
Thomas Harte
1a9cea050e Minor: ensure AY registers *read* as 0 from reset, as well as being 0. 2018-06-01 19:48:42 -04:00
Thomas Harte
0b771ce61a Removes all instances of the copyright symbol. 2018-05-13 15:19:52 -04:00
Thomas Harte
48737a32a7 Introduces formal setting of the output volume to SampleSource. 
Previously every output device was making its own decision. Which is increasingly less sustainable due to the CompoundSource.
 2018-03-09 13:23:18 -05:00
Thomas Harte
3c5a8d9ff3 Adds Super Game Module support for the ColecoVision. 2018-03-03 13:08:33 -05:00
Thomas Harte
2dc1d4443e Separates LowpassFilter and SampleSource. 2017-12-18 21:39:23 -05:00
Thomas Harte
ac80d10cd8 Separates the component parts of running an audio stream: task deferral, filtering and generation. 
Walking towards improving opportunities for composition.
 2017-12-17 21:26:06 -05:00
Thomas Harte
5b6ea35d96 Corrects initialisation ordering for the ZX80/81, C1540 and AY-3-8910. 2017-11-10 22:31:27 -05:00
Thomas Harte
f95515ae81 Eliminates a large number of instance of end-of-line tabs. 2017-11-07 22:51:06 -05:00
Thomas Harte
82367a2246 Added documentation. 2017-08-16 09:14:56 -04:00
Thomas Harte
3947347d88 Introduces active input handling for the AY and uses it in the CPC to give proper, active keyboard input, rather than push-on-select, which was only ever a temporary hack. Also maps a few more keys for the Amstrad. 2017-08-15 22:47:17 -04:00
Thomas Harte
745afd217f The port input/output flags are now honoured; reading a port that is set as an output returns the current output value. 2017-08-07 19:01:18 -04:00
Thomas Harte
3ca9c38777 Attempted to move to more accurate bus reading — if control lines are set then all subsequent data inputs should act according to the current control lines; changes to port input should be reflected live upon readings, etc. 2017-08-02 19:45:58 -04:00
Thomas Harte
0267bc237f Added the ability to set a port input, and relaxed bus state testing. I think my on-demand bus reactions here are inappropriate, so more work to do here probably. 2017-08-01 18:04:51 -04:00
Thomas Harte
e6854ff8db Corrected typo: the input to an AY is BDIR, not BCDIR. 2017-08-01 17:06:57 -04:00
Thomas Harte
2d4e202be3 Completed dangling comment. 2017-08-01 17:01:36 -04:00
Thomas Harte
36bc558798 Converted all 'Components' to postfix underscores. 2016-12-03 10:51:09 -05:00
Thomas Harte
fd823dc222 Settled on terminology. 2016-10-23 20:42:49 -04:00
Thomas Harte
b12f2f2796 Switched to more straightforward version of two-step loop, dealing with my mistaken dealing of when _master_divider&15 == 0 upon entry without adding an extra sanity check. Am also temporarily on non-modulo logic for tone generation, for a profiling test. 2016-10-23 20:32:48 -04:00
Thomas Harte
583db88299 Added a dispatch queue-powered Apple implementation of the async task queue, removed any mention of skip_samples in the AY since it isn't implemented. 2016-10-22 21:58:45 -04:00
Thomas Harte
33e628a096 Made an attempt to eliminate what amounts to manual division. 2016-10-21 22:16:44 -04:00
Thomas Harte
782ef960e1 Sought both to [start to] optimise the AY and correct divider reloads. It turns out that conditionals aren't that troubling. But I can probably eliminate the counters. 2016-10-21 20:05:38 -04:00
Thomas Harte
cd59eb5f43 Implemented non-linear volume. 2016-10-19 23:07:51 -04:00
Thomas Harte
b59da7d4bc Added some documentation. 2016-10-19 22:47:44 -04:00
Thomas Harte
6073906c39 Commented and fixed mistake that would equate any noise divider > 32768 with 0. 2016-10-19 21:51:35 -04:00
Thomas Harte
ada37abe23 Made an attempt to implement noise and envelopes. Not quite right yet. 2016-10-19 21:13:22 -04:00
Thomas Harte
9669a5ec9b Switched to a more authentic interfacing to the AY. 2016-10-18 19:32:15 -04:00
Thomas Harte
43612e1ca2 Made an attempt to eliminate conditionals (running before I can walk?) and started edging towards an envelope generator. 2016-10-17 08:03:38 -04:00
Thomas Harte
9730e8247f Ensured propagation of synchronise messages, added enough to do plain tone. Probably. So: noise and envelopes missing. And it's all far too quiet. 2016-10-15 21:04:21 -04:00
Thomas Harte
51bdac27ae Made some AY advances; it's now being polled for samples and collecting more information on what it needs to output. 2016-10-15 17:45:39 -04:00
Thomas Harte
288d10c253 Got some keyboard reaction. 2016-10-14 21:44:15 -04:00
Thomas Harte
d8e4c488c2 Started iterating towards having an AY and a fully-working keyboard. 2016-10-14 21:18:03 -04:00