Commit Graph

36 Commits

Author SHA1 Message Date
tildearrow 6a02754996 add PAL flag to dispatch
now platforms run at their correct clock speed when in PAL mode

also fix clipping in Genesis
2021-12-08 01:56:40 -05:00
tildearrow 65ab3a2b5d keyOffAffectsArp is now per-channel 2021-12-08 00:33:00 -05:00
tildearrow 145403e7dd Merge branch 'master' of github.com:tildearrow/furnace 2021-12-06 16:52:03 -05:00
tildearrow d6fb6b0bb3 more optimization
as of now non-stereo sound chips are only processed once
2021-12-06 16:51:18 -05:00
tildearrow 6efcfc2e8a prepare for possible major optimization
by just forwarding an output buffer to the dispatch and begin/length,
the number of calls may be reduced which improves performance.
2021-12-06 05:21:42 -05:00
tildearrow ce4b6c7044 genesis: comment out two debug messages 2021-12-06 03:26:33 -05:00
tildearrow 055b4f9c26 genesis: fix delay bug 2021-12-06 03:07:29 -05:00
tildearrow 8478481466 hmmm 2021-12-06 02:59:12 -05:00
tildearrow b30c5679ae genesis: reduce CPU usage
the chip uses TDM to output the channels one by one
so we just run the chip 6 times and output at 1/6th the rate, which
means less work for blip_buf and less C++ overhead
2021-06-09 01:57:12 -05:00
tildearrow 0b8fcc6e8d genesis: implement 10xx command 2021-06-05 23:27:02 -05:00
tildearrow 83ce4f0ebe game boy progress, part 5
now with almost accurate arpeggios.
2021-05-28 00:36:40 -05:00
tildearrow 892ea33e77 game boy progress, part 3 2021-05-27 23:03:10 -05:00
tildearrow 26463fd8d9 better pitch slides
now digital warmth doesn't choke at the toms
2021-05-19 14:39:39 -05:00
tildearrow 09ed99f0b0 genesis extended channel 3 support.
as of today Furnace is able to play most Genesis songs without trouble.
bugs are expected, and fixes will arrive.

are you ready?
2021-05-18 16:02:49 -05:00
tildearrow c766f98719 implement arp speed and arp tick 2021-05-18 02:53:59 -05:00
tildearrow c0f7f12c89 misc fixes and new effects
- fix 8-bit samples
- 0C effect
- E3 effect
2021-05-18 02:29:17 -05:00
tildearrow b2908413fe FM: better pitch slide accuracy
so... it appears that pitch slides in Genesis system aren't truly linear
instead, they are "kind of linear". the frequency isn't linear, and when
it overflows the range of an octave, the high bit changes and the
frequency is shifted right
2021-05-18 01:20:38 -05:00
tildearrow b34321b556 fix a tiny TL misbehavior 2021-05-18 00:43:00 -05:00
tildearrow cf7aa9139c TL change on out op fix 2021-05-17 16:32:56 -05:00
tildearrow 98180c3d23 now fix the volume slides in FM as well 2021-05-17 15:51:12 -05:00
tildearrow 9736b77401 better volume slide accuracy
volume slide seems to be kind of quirky:
- sliding all the way down and then up suddenly sets the vol to max
- apparently there is an overflow and the slide stops when it reaches
  its boundaries (instead of continuing)
2021-05-17 15:06:11 -05:00
tildearrow 67847d79cf attempt to fix the volume slide mess
also a fix to noise arps in basic mode in SMS

the volume slides will be an adventure as the behavior seems to be hard
to determine
2021-05-17 03:06:45 -05:00
tildearrow bbd175e8f6 a 2021-05-16 20:49:56 -05:00
tildearrow 3a1019a08c more fixes and tweaks
memory management party
2021-05-16 20:49:54 -05:00
tildearrow 2532401265 prepare for ch3 mode 2021-05-16 17:43:10 -05:00
tildearrow dbc2e6285f a lot of work
- round to nearest instead of round to zero in SMS period calc
- implement arpeggio
- implement arp macro (kinda)
- polish the SMS platform
- correct the DIV_CMD_PITCH range to 1 semitone
- fix PSG volume in Genesis
- use a better register write strat in Genesis
- fix a bug caused by legacy code
- implement ECxx command
- implement EDxx command
- implement SN noise mode command
- vibrato table is now 64 positions long (instead of 60)
2021-05-16 03:03:23 -05:00
tildearrow f2c70df4a8 bind SMS platform to Genesis one 2021-05-15 16:59:57 -05:00
tildearrow 9a97c38cc6 implement more effects and bugfixes
enough to play time trax intro near flawless
2021-05-15 03:13:21 -05:00
tildearrow eb692ca9a9 implement several effects
volume slides, vibrato, slides and portamento
2021-05-14 14:16:48 -05:00
tildearrow 775b88dae2 more playback work 2021-05-14 03:23:40 -05:00
tildearrow d57a30e717 optimize by 0% 2021-05-13 13:22:44 -05:00
tildearrow c5fa0a3d6d it doesn't... 2021-05-13 03:18:54 -05:00
tildearrow cb1c96ff1d add a register write cache
improves quality and... wait!
2021-05-13 03:09:56 -05:00
tildearrow 45a6d70479 massive improvements to genesis playback 2021-05-13 02:39:26 -05:00
tildearrow ea5c28829e or 2021-05-12 19:18:48 -05:00
tildearrow 062a9837c0 G E N E S I S
without SN
2021-05-12 17:19:18 -05:00