log ym2612.c @ 1998:0740d90812ee

age author description
Wed, 29 Apr 2020 01:00:57 -0700 Michael Pavone WIP netplay support
Sat, 28 Mar 2020 15:46:53 -0700 Michael Pavone Skip invalid registers when dumping initial YM2612 state to VGM log
Fri, 27 Mar 2020 00:03:58 -0700 Michael Pavone Initial stab at VGM logging support
Wed, 26 Feb 2020 22:40:37 -0800 Michael Pavone Implement selectable YM2612/YM3834 invalid status port behavior
Mon, 24 Feb 2020 20:06:29 -0800 Michael Pavone Fix YM2612 busy flag timing
Sat, 07 Sep 2019 22:18:09 -0700 Michael Pavone Cache operator phase increment for a small perf improvement
Fri, 06 Sep 2019 09:13:44 -0700 Michael Pavone Split ym_run into a few different functions to enhance clarity
Wed, 27 Mar 2019 22:04:54 -0700 Michael Pavone Operator results should be delayed by one sample when used as a modulator in some cases based on relative execution time and pipeline length
Tue, 26 Mar 2019 22:34:41 -0700 Michael Pavone Zero offset should also impact output channels that a channel is panned away from
Tue, 26 Mar 2019 22:27:23 -0700 Michael Pavone Fix a couple of minor cases of extra precision in LFO implementation
Sun, 24 Mar 2019 19:59:41 -0700 Michael Pavone Optionally emulate the offset around zero in the imperfect DAC of a discrete YM2612
Sun, 30 Dec 2018 18:48:08 -0800 Mike Pavone Optimize YM operator modulation
Fri, 28 Dec 2018 12:08:43 -0800 Michael Pavone Preserve WAVE logging FILE * across YM2612 device reset
Fri, 30 Mar 2018 00:37:08 -0700 Michael Pavone More audio refactoring in preparation for allowing proper sync to video with dynamic audio rate control
Wed, 28 Mar 2018 23:36:08 -0700 Michael Pavone Small cleanup to audio interface between emulation code and renderer backend
Tue, 29 Aug 2017 19:42:14 -0700 Michael Pavone Save entirety of fnum register, not just the low 8 bits
Tue, 29 Aug 2017 00:09:35 -0700 Michael Pavone Save and restore YM2612 timer control and keyon/off state in native save states
Sun, 06 Aug 2017 00:06:36 -0700 Michael Pavone WIP - New savestate format
Thu, 11 May 2017 07:51:28 -0700 Michael Pavone Fix resampling code to deal with case in which output frequency is greater than the input frequency. Probably could stand to be improved, but at least it doesn't cause the emulator to deadlock
Thu, 30 Mar 2017 23:57:30 -0700 Michael Pavone Reset YM2612 whenver the Z80 is reset. Fixes issue with stuck notes in Fantastic Dizzy and Kid Chameleon
Mon, 27 Mar 2017 00:40:10 -0700 Michael Pavone Initial implementation of YM2612 SSG-EG mode
Sat, 25 Mar 2017 15:41:52 -0700 Michael Pavone Basic implementation of CSM mode that should handle documented edge cases. Dodesn't handle the weird undocumented edge cases I don't have a good understanding of yet though
Mon, 28 Nov 2016 22:45:46 -0800 Michael Pavone Clean up symbol visiblity and delete a ltitle bit of dead code
Sun, 01 May 2016 13:36:14 -0700 Michael Pavone Made low pass filter frequency configurable
Wed, 20 Apr 2016 09:18:58 -0700 Michael Pavone Implemented linear resampling and low pass filter for the YM2612
Sat, 20 Feb 2016 01:11:18 -0800 Michael Pavone Fix register to operator mapping for channel 3 special mode and actually get it right this time
Thu, 18 Feb 2016 21:28:33 -0800 Michael Pavone Remove phase increment caching. Fix LFO phase modulation calculation
Sat, 13 Feb 2016 22:20:37 -0800 Michael Pavone Add yt debug command for printing YM-2612 timer info. Fix AMS shift values.
Wed, 10 Feb 2016 20:05:39 -0800 Michael Pavone Change where decay to sustain transition happens to match hardware when decay rate is slow or 0
Fri, 13 Nov 2015 22:56:59 -0800 Michael Pavone Selecting a second game from the menu now works