log ym2612.h @ 1996:e35b00626b3e

age author description
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, 17 May 2019 08:43:30 -0700 Michael Pavone Split generic part of audio code into a separate file so it can be used in other targets besides SDL
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
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, 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
Sun, 06 Aug 2017 00:06:36 -0700 Michael Pavone WIP - New savestate format
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
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
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.
Fri, 13 Nov 2015 22:56:59 -0800 Michael Pavone Selecting a second game from the menu now works
Sun, 01 Nov 2015 12:55:08 -0800 Michael Pavone Wrote a buggy tool for splitting VGM files by channel
Sat, 31 Oct 2015 21:11:40 -0700 Michael Pavone Small fix to how manual YM-2612 timer reloads work. Seems to better match a small test program and gets audio to match up in TM.EE's "I've got Italo Inside" track.
Wed, 27 May 2015 20:53:21 -0700 Michael Pavone Add a basic YM-2612 command to the debugger. Fix negative detune values and get the correct precision for the multiplication step of phase inc calculation
Thu, 13 Feb 2014 00:55:01 -0800 Mike Pavone Better emulation of the YM-2612 busy flag
Wed, 12 Feb 2014 22:14:11 -0800 Michael Pavone Fix operator 1 self-feedback
Tue, 01 Oct 2013 23:51:16 -0700 Mike Pavone Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
Tue, 10 Sep 2013 23:31:08 -0700 Mike Pavone Added copyright notice to source files and added GPL license text in COPYING
Fri, 26 Jul 2013 19:55:04 -0700 Mike Pavone Added support for saving savestates. Added gst savestate format test harness
Sat, 29 Jun 2013 17:15:08 -0700 Mike Pavone Add support for loading GST format savestates
Wed, 19 Jun 2013 00:25:09 -0700 Mike Pavone Initial stab at LFO phase modulation
Sun, 16 Jun 2013 17:57:57 -0700 Mike Pavone Add support for logging YM2612 channels to WAVE files
Sun, 16 Jun 2013 00:56:23 -0700 Mike Pavone Fix YM2612 timers
Tue, 04 Jun 2013 21:23:12 -0700 Mike Pavone Initial implementation of channel 3 special mode
Mon, 03 Jun 2013 21:43:38 -0700 Mike Pavone Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
Sun, 02 Jun 2013 13:42:33 -0700 Mike Pavone Use signed ints for things that represent signed values in YM2612 core
Wed, 29 May 2013 00:57:19 -0700 Mike Pavone Incredibly broken YM2612 support plus a fix to Z80 bus request
Mon, 27 May 2013 22:19:11 -0700 Mike Pavone YM2612 WIP update
Mon, 27 May 2013 09:54:58 -0700 Mike Pavone YM2612 WIP snapshot before register refactor
Sun, 05 May 2013 22:56:42 -0700 Mike Pavone Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.