c48097a484
Convert div counter to the SM mechanism
2018-02-23 13:16:05 +02:00
9802ca41dd
Components not affected by CGB’s double speed mode now operate in 8MHz mode to theoretically make advance_cycles(gb, 1) safe.
2018-02-20 21:17:12 +02:00
f79af39ea2
More accurate emulation of the APU’s analog characteristics
2018-02-16 18:01:50 +02:00
fc35111ae7
Corrected the emulated DAC’s range
2018-02-16 01:26:37 +02:00
0c231db9e7
This is probably not correct (and makes no sense from an hardware design perspective), but this correctly emulates my analog test cases and fixes the pops introduced by the last commit.
2018-02-13 23:13:15 +02:00
bfb37884e1
Inactive channels are not equivalent to channels with 0 volume.
2018-02-11 22:50:15 +02:00
afcc66fb3c
Added CPU under/over-clocking support in Core, add under-clocking hotkey in the Cocoa port, allow modifier keys to be configured as input keys in Cocoa.
2018-02-10 23:30:30 +02:00
09dd47c6de
Fixed unintentional delay in NR50 and NR51’s effects
2018-01-19 19:56:39 +02:00
37906bcd1f
Fixed sound pops in Super Mario Land 2.
2018-01-19 00:47:46 +02:00
0a76881eb6
Correctly emulating NRx4 effects on the sound envelop of the previously playing sound. Closes #19
2018-01-06 12:37:45 +02:00
a20e8a8220
Fixed bug in NR42 write that also caused memory corruption
2018-01-06 12:17:06 +02:00
a1af4c59ca
Fixed NR51 volume levels (They’re 1-8, not 0-7)
2018-01-06 11:58:49 +02:00
61f9dbd95d
Use SDL’s key mapping when available
2017-12-28 20:22:54 +02:00
c1f27d7b27
Spacing
2017-10-02 22:59:03 +03:00
d9b0576351
Emulation of NRX2-write glitches. Fixes Prehistorik Man audio.
2017-10-02 22:56:24 +03:00
67f1566b5e
Minor refinement to sweep
2017-09-23 00:23:02 +03:00
e0a6edac35
Setting sweep period to 0 cancels pending calculate event
2017-09-22 14:53:24 +03:00
2ffce49e16
Minor bugfixes related to sweeping
2017-09-22 14:39:39 +03:00
75db33559a
Current sample index (Channel 1 and 2) is only reset after turning the APU off
2017-09-22 02:25:06 +03:00
8f4cd5c412
Corrected behavior for channel 1 and 2 restart
2017-09-22 02:04:29 +03:00
882b141478
Fixed dmg_sound-1
2017-09-21 18:32:21 +03:00
2ca550273a
Fixed dmg_sound-5
2017-09-21 18:18:10 +03:00
d3c15ef6ca
Fixing APU bugs, one at a time: Blargg’s dmg_sound 8.2
2017-09-21 14:52:09 +03:00
62878fdc7a
More accurate div-event handling
2017-08-15 22:27:15 +03:00
8d011ca4b9
Accuracy improvements (Sweep)
2017-08-15 22:05:20 +03:00
d04aaddcbd
Added highpass filter
2017-08-15 21:59:11 +03:00
ca59aca4a6
Fixed a bug where writing to NR52 affected channels 1 and 2’s duty pattern in DMG mode. Fixed NR43 being written to NR44 as well.
2017-08-13 20:26:35 +03:00
36943866e2
Better click prevention
2017-08-12 23:35:18 +03:00
dba7370d6d
Turns out APU signal is inverted. This fixes Perfect Dark’s audio.
2017-08-12 20:47:55 +03:00
688991f57f
The volume envelopes and length controls are handled in different phases of the div-divider
2017-08-12 20:17:20 +03:00
4b8be255ce
Fixed some channel 4 delays, documented a not currently emulated timing quirk.
2017-08-12 19:50:39 +03:00
066efab985
In DMG mode, the length registers are not affected by turning the APU on and off. Why? Why not!
2017-08-11 22:23:03 +03:00
0e22ad8eb1
Noise channel support
2017-08-11 17:57:08 +03:00
1a8bcd314d
Accuracy improvements to sweeping (Still not complete though, more research needed)
2017-08-10 19:42:23 +03:00
ab5611119a
Accuracy improvements, especially to the length control
2017-08-02 21:14:23 +03:00
d65c2247e5
Added channel 1 and 2, fixed accuracy issues with channel 3
2017-07-27 23:11:33 +03:00
2936f7fa57
Fixed channel 3 counter behavior, verified with new tests. The DIV register ticks the APU at 512Hz.
2017-07-22 19:51:11 +03:00
a19ee1e5e0
2MHz audio downscaling support. Implemented NR50 and NR51.
2017-07-21 23:17:48 +03:00
baccf336d7
Complete rewrite of the APU. Channel 3 is complete and passes all the relevant tests from blargg’s suite, as well as PCM34-based tests. Actual sound output is basic and limited, though.
2017-07-21 19:06:55 +03:00
c59272d46d
Misc minor fixes, fixes several Mooneye-GB tests
2017-06-21 20:39:23 +03:00
6dd24e0733
Fixed hung note issue. Closes #7
2017-05-13 17:04:05 +03:00
00623d4eea
- Added audio supersampling support to greatly improve audio quality.
...
- Fixed a bug where low sampling rate or disabled sound resulted in wrong APU behavior.
- Added API to get the current number of pending samples.
- This change broke save state compatibility with v0.8 and older
Closes #8 .
2017-05-12 17:11:55 +03:00
a925ef130d
Stabilizing API: New joypad, debugger and reset APIs; internal APIs and direct struct access are no longer available without defining GB_INTERNAL. The SDL port uses the new “public” APIs, as well as most of the non-debug Cocoa code.
2017-04-17 20:16:17 +03:00
252439c1af
Fixed a deadlocking race condition that might happen when reading APU memory in the hex viewer
2016-09-21 01:59:43 +03:00
37e895352f
Volumes no longer doubles
2016-09-20 19:58:30 +03:00
4beb946468
Slight APU optimization
2016-09-14 22:49:35 +03:00
f274cbc2ec
Read wave form while playing
2016-09-13 17:40:10 +03:00
594aea2d5a
APU is now being run lazily
2016-09-13 17:33:48 +03:00
eefc998e43
Removed for loop in APU
2016-09-13 17:06:35 +03:00
ff7b8a6854
Removed doubles, reorganized code a bit
2016-09-13 16:57:16 +03:00
b95860c034
Making the APU independent of sample rate
2016-09-13 16:55:26 +03:00
6d836b9f48
Fixed APU bug that prevented some games from working
2016-09-10 02:20:44 +03:00
01fc137256
Fixed an APU issue that might occur when having more than one GB_gameboy_t object
2016-09-06 22:36:16 +03:00
e7626535a8
Initial Windows support
2016-08-20 17:51:17 +03:00
70bd90740a
Mass name and type changes. Save states are now compatible between 32- and 64-bit systems. Maybe.
2016-06-18 20:29:11 +03:00
759b497c07
Fixed bug introduced by the stereo support
2016-06-10 16:38:20 +03:00
6bc64a9902
Added stereo support. Correct some PCM register behavior.
2016-06-10 15:28:50 +03:00
7dc575d01e
Fixed a bug where audio channel 3 was playing silently instead of being muted.
2016-04-16 14:08:30 +03:00
f1e9623371
Initial public commit
2016-04-01 21:27:01 +03:00
Lior Halphon