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27 commits

Author SHA1 Message Date
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