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Commit Graph

76 Commits

Author SHA1 Message Date
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
337cb4fb86 Resolves implicit type conversion warnings. 2020-02-16 14:05:23 -05:00
Thomas Harte
f760a68173 Corrects stereo audio generation. 2020-02-16 00:19:49 -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
dde672701f
Merge pull request #755 from TomHarte/ExpliticLambdas
Tries to be less lazy with lambda captures.
2020-02-15 12:38:12 -05:00
Thomas Harte
9ca2d8f9f2 Tried to be less lazy with lambda captures.
This is primarily defensive.
2020-02-14 23:39:08 -05:00
Thomas Harte
763159a6f6 More neatly ties volume level 0 to silence. 2020-02-14 23:16:10 -05:00
Thomas Harte
6810a6ee58 Adjusts the AY volume scale.
Hopefully more accurately to model the real thing.
2020-02-14 22:51:20 -05:00
Thomas Harte
6a44936a7c Ensures programmatic volume level 0 is completely off. 2020-01-05 22:44:52 -05:00
Thomas Harte
274867579b Deploys constexpr as a stricter const. 2019-12-22 00:22:17 -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
ee89be6730 Removes many stray spaces. 2018-11-23 22:32:32 -05:00
Thomas Harte
df8c896193 Removes unused state and implements AND output readback. 2018-06-26 19:31:16 -04:00
Thomas Harte
59f8eeb05a Ensures the AY goes high impedance when not in read mode. 2018-06-25 20:48:24 -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
5d6b5d9f10 Eliminates all emdashes in cross-platform code. 2018-05-13 15:34:31 -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
d4df101ab6 Makes a first attempt at implementing the SN76489. 2018-02-27 22:25:12 -05:00
Thomas Harte
57ddfcd645 Corrects AY counter type. 2018-01-06 23:16:01 -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
5aef81cf24 Commutes cross-platform #pragma marks to //MARK:s. 2017-11-12 15:59:11 -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
ec999446e8 Commutes int and unsigned casts to the functional style. 2017-10-21 21:00:40 -04:00
Thomas Harte
5e3e91373a Switches all unsigned int and double casts to functional style. 2017-10-21 19:49:04 -04:00
Thomas Harte
edb9fd301c Begins this project's conversion to functional-style casts. 2017-10-03 22:04:15 -04:00
Thomas Harte
cc9d23f23b Inverted meaning of register_masks, as it's a bit weird that the mask is inverted immediately upon usage. It's a left-over from thinking the unused bits should be 1s; unit tests reveal they should be 0s. Comment updated appropriately. 2017-08-16 09:29:48 -04:00
Thomas Harte
1a831bcf9b Quick fix: supply the port being written to correctly. 2017-08-16 09:15:57 -04:00
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
e3d1f4fe1e Subjectively, this might be more correct. It definitely prevents intermediate frequencies. More research required. 2017-08-08 17:58:35 -04:00
Thomas Harte
41a30c147d Adjusted: invalid register selection simply deselects all registers. 2017-08-07 19:51:36 -04:00
Thomas Harte
7fbb455836 Per the CPC test I'm checking, 0s should be returned for non-retained bits, not 1s. 2017-08-07 19:07:12 -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
aaa60dab12 Fixed signedness of index. 2017-07-21 21:21:01 -04:00
Thomas Harte
e01f3f06c8 Completed curly bracket movement. 2017-03-26 14:34:47 -04:00
Thomas Harte
ced644b103 It seems likely that an AY divides its clock by 8, not 16. I had conflated wave frequency and counter clock. 2017-01-11 22:03:01 -05:00
Thomas Harte
36bc558798 Converted all 'Components' to postfix underscores. 2016-12-03 10:51:09 -05:00
Thomas Harte
7eeaac23e7 Reversed myself. I once again do not think the clock is divided by 256 for envelopes. 2016-11-11 20:31:48 -05:00