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document (NON-WORKING) extended op param effects

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tildearrow 2022-05-02 18:15:51 -05:00
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34
papers/doc/7-systems/opl.md
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@ -44,3 +44,37 @@ afterwards everyone moved to Windows and software mixed PCM streaming...
- only in 4-op mode (OPL3).
- `1Dxx`: set attack of operator 4.
- only in 4-op mode (OPL3).
- `2Axy`: set waveform of operator.
- `x` is the operator (1-4; last 2 operators only in 4-op mode). a value of 0 means "all operators".
- `y` is the value.
- only in OPL2 or higher.
- `30xx`: enable envelope hard reset.
- this works by inserting a quick release and tiny delay before a new note.
- `50xy`: set AM of operator.
- `x` is the operator (1-4; last 2 operators only in 4-op mode). a value of 0 means "all operators".
- `y` determines whether AM is on.
- `51xy` set SL of operator.
- `x` is the operator (1-4; last 2 operators only in 4-op mode). a value of 0 means "all operators".
- `y` is the value.
- `52xy` set RR of operator.
- `x` is the operator (1-4; last 2 operators only in 4-op mode). a value of 0 means "all operators".
- `y` is the value.
- `53xy`: set VIB of operator.
- `x` is the operator (1-4; last 2 operators only in 4-op mode). a value of 0 means "all operators".
- `y` determines whether VIB is on.
- `54xy` set KSL of operator.
- `x` is the operator (1-4; last 2 operators only in 4-op mode). a value of 0 means "all operators".
- `y` is the value.
- `55xy` set SUS of operator.
- `x` is the operator (1-4; last 2 operators only in 4-op mode). a value of 0 means "all operators".
- `y` determines whether SUS is on.
- `56xx`: set DR of all operators.
- `57xx`: set DR of operator 1.
- `58xx`: set DR of operator 2.
- `58xx`: set DR of operator 3.
- only in 4-op mode (OPL3).
- `58xx`: set DR of operator 4.
- only in 4-op mode (OPL3).
- `5Bxy`: set KSR of operator.
- `x` is the operator (1-4; last 2 operators only in 4-op mode). a value of 0 means "all operators".
- `y` determines whether KSR is on.

24
papers/doc/7-systems/opll.md
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@ -37,3 +37,27 @@ the YM2413 is equipped with the following features:
- `19xx`: set attack of all operators.
- `1Axx`: set attack of operator 1.
- `1Bxx`: set attack of operator 2.
- `50xy`: set AM of operator.
- `x` is the operator (1-2). a value of 0 means "all operators".
- `y` determines whether AM is on.
- `51xy` set SL of operator.
- `x` is the operator (1-2). a value of 0 means "all operators".
- `y` is the value.
- `52xy` set RR of operator.
- `x` is the operator (1-2). a value of 0 means "all operators".
- `y` is the value.
- `53xy`: set VIB of operator.
- `x` is the operator (1-2). a value of 0 means "all operators".
- `y` determines whether VIB is on.
- `54xy` set KSL of operator.
- `x` is the operator (1-2). a value of 0 means "all operators".
- `y` is the value.
- `55xy` set EGT of operator.
- `x` is the operator (1-2). a value of 0 means "all operators".
- `y` determines whether EGT is on.
- `56xx`: set DR of all operators.
- `57xx`: set DR of operator 1.
- `58xx`: set DR of operator 2.
- `5Bxy`: set KSR of operator.
- `x` is the operator (1-2). a value of 0 means "all operators".
- `y` determines whether KSR is on.

100
papers/doc/7-systems/opz.md Normal file
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@ -0,0 +1,100 @@
# Yamaha OPZ (YM2414)
this is the YM2151's little-known successor, used in the Yamaha TX81Z and a few other Yamaha synthesizers. oh, and the Korg Z3 too.
it adds these features on top of the YM2151:
- 8 waveforms (but they're different from the OPL ones)
- per-channel (possibly) linear volume control separate from TL
- increased multiplier precision (in 1/16ths)
- 4-step envelope generator shift (minimum TL)
- another LFO
- no per-operator key on/off
- fixed frequency mode per operator (kind of like OPN family's extended channel mode but with a bit less precision and for all 8 channels)
- "reverb" effect (actually extends release)
unlike the YM2151, this chip is officially undocumented. very few efforts have been made to study the chip and document it...
therefore emulation of this chip in Furnace is incomplete and uncertain.
no plans have been made for TX81Z MIDI passthrough, because:
- Furnace works with register writes rather than MIDI commands
- the MIDI protocol is slow (would not be enough).
- the TX81Z is very slow to process a note on/off or parameter change event.
- the TL range has been reduced to 0-99, but the chip goes from 0-127.
# effects
- `10xx`: set noise frequency of channel 8 operator 4. 00 disables noise while 01 to 20 enables it.
- `11xx`: set feedback of channel.
- `12xx`: set operator 1 level.
- `13xx`: set operator 2 level.
- `14xx`: set operator 3 level.
- `15xx`: set operator 4 level.
- `16xy`: set multiplier of operator.
- `x` is the operator (1-4).
- `y` is the mutliplier.
- `17xx`: set LFO speed.
- `18xx`: set LFO waveform. `xx` may be one of the following:
- `00`: saw
- `01`: square
- `02`: triangle
- `03`: noise
- `19xx`: set attack of all operators.
- `1Axx`: set attack of operator 1.
- `1Bxx`: set attack of operator 2.
- `1Cxx`: set attack of operator 3.
- `1Dxx`: set attack of operator 4.
- `28xy`: set reverb of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `29xy`: set EG shift of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `2Axy`: set waveform of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `2Fxx`: enable envelope hard reset.
- this works by inserting a quick release and tiny delay before a new note.
- `3xyy`: set fixed frequency of operator 1/2.
- `x` is the block (0-7 for operator 1; 8-F for operator 2).
- `y` is the frequency. fixed frequency mode will be disabled if this is less than 8.
- the actual frequency is: `y*(2^x)`.
- `4xyy`: set fixed frequency of operator 3/4.
- `x` is the block (0-7 for operator 3; 8-F for operator 4).
- `y` is the frequency. fixed frequency mode will be disabled if this is less than 8.
- the actual frequency is: `y*(2^x)`.
- `50xy`: set AM of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` determines whether AM is on.
- `51xy` set SL of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `52xy` set RR of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `53xy` set DT of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value:
- 0: +0
- 1: +1
- 2: +2
- 3: +3
- 4: -0
- 5: -3
- 6: -2
- 7: -1
- `54xy` set RS of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `55xy` set DT2 of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `56xx`: set DR of all operators.
- `57xx`: set DR of operator 1.
- `58xx`: set DR of operator 2.
- `59xx`: set DR of operator 3.
- `5Axx`: set DR of operator 4.
- `5Bxx`: set D2R/SR of all operators.
- `5Cxx`: set D2R/SR of operator 1.
- `5Dxx`: set D2R/SR of operator 2.
- `5Exx`: set D2R/SR of operator 3.
- `5Fxx`: set D2R/SR of operator 4.

38
papers/doc/7-systems/ym2151.md
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@ -26,3 +26,41 @@ it also was present on several pinball machines and synthesizers of the era, and
- `1Bxx`: set attack of operator 2.
- `1Cxx`: set attack of operator 3.
- `1Dxx`: set attack of operator 4.
- `30xx`: enable envelope hard reset.
- this works by inserting a quick release and tiny delay before a new note.
- `50xy`: set AM of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` determines whether AM is on.
- `51xy` set SL of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `52xy` set RR of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `53xy` set DT of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value:
- 0: +0
- 1: +1
- 2: +2
- 3: +3
- 4: -0
- 5: -3
- 6: -2
- 7: -1
- `54xy` set RS of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `55xy` set DT2 of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `56xx`: set DR of all operators.
- `57xx`: set DR of operator 1.
- `58xx`: set DR of operator 2.
- `59xx`: set DR of operator 3.
- `5Axx`: set DR of operator 4.
- `5Bxx`: set D2R/SR of all operators.
- `5Cxx`: set D2R/SR of operator 1.
- `5Dxx`: set D2R/SR of operator 2.
- `5Exx`: set D2R/SR of operator 3.
- `5Fxx`: set D2R/SR of operator 4.

40
papers/doc/7-systems/ym2610.md
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@ -57,3 +57,43 @@ its soundchip is a 4-in-1: 4ch 4-op FM, YM2149 (AY-3-8910 clone) and 2 different
- `x` is the numerator.
- `y` is the denominator.
- if `x` or `y` are 0 this will disable auto-envelope mode.
- `30xx`: enable envelope hard reset.
- this works by inserting a quick release and tiny delay before a new note.
- `50xy`: set AM of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` determines whether AM is on.
- `51xy` set SL of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `52xy` set RR of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `53xy` set DT of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value:
- 0: +0
- 1: +1
- 2: +2
- 3: +3
- 4: -0
- 5: -3
- 6: -2
- 7: -1
- `54xy` set RS of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `55xy` set SSG-EG of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value (0-8).
- values between 0 and 7 set SSG-EG.
- value 8 disables it.
- `56xx`: set DR of all operators.
- `57xx`: set DR of operator 1.
- `58xx`: set DR of operator 2.
- `59xx`: set DR of operator 3.
- `5Axx`: set DR of operator 4.
- `5Bxx`: set D2R/SR of all operators.
- `5Cxx`: set D2R/SR of operator 1.
- `5Dxx`: set D2R/SR of operator 2.
- `5Exx`: set D2R/SR of operator 3.
- `5Fxx`: set D2R/SR of operator 4.

40
papers/doc/7-systems/ym2610b.md
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@ -56,3 +56,43 @@ it is backward compatible with the original chip.
- `x` is the numerator.
- `y` is the denominator.
- if `x` or `y` are 0 this will disable auto-envelope mode.
- `30xx`: enable envelope hard reset.
- this works by inserting a quick release and tiny delay before a new note.
- `50xy`: set AM of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` determines whether AM is on.
- `51xy` set SL of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `52xy` set RR of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `53xy` set DT of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value:
- 0: +0
- 1: +1
- 2: +2
- 3: +3
- 4: -0
- 5: -3
- 6: -2
- 7: -1
- `54xy` set RS of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `55xy` set SSG-EG of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value (0-8).
- values between 0 and 7 set SSG-EG.
- value 8 disables it.
- `56xx`: set DR of all operators.
- `57xx`: set DR of operator 1.
- `58xx`: set DR of operator 2.
- `59xx`: set DR of operator 3.
- `5Axx`: set DR of operator 4.
- `5Bxx`: set D2R/SR of all operators.
- `5Cxx`: set D2R/SR of operator 1.
- `5Dxx`: set D2R/SR of operator 2.
- `5Exx`: set D2R/SR of operator 3.
- `5Fxx`: set D2R/SR of operator 4.

40
papers/doc/7-systems/ym2612.md
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@ -25,3 +25,43 @@ one of two chips that powered the Sega Genesis. It is a six-channel, four-operat
- `1Bxx`: set attack of operator 2.
- `1Cxx`: set attack of operator 3.
- `1Dxx`: set attack of operator 4.
- `30xx`: enable envelope hard reset.
- this works by inserting a quick release and tiny delay before a new note.
- `50xy`: set AM of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` determines whether AM is on.
- `51xy` set SL of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `52xy` set RR of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `53xy` set DT of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value:
- 0: +0
- 1: +1
- 2: +2
- 3: +3
- 4: -0
- 5: -3
- 6: -2
- 7: -1
- `54xy` set RS of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value.
- `55xy` set SSG-EG of operator.
- `x` is the operator (1-4). a value of 0 means "all operators".
- `y` is the value (0-8).
- values between 0 and 7 set SSG-EG.
- value 8 disables it.
- `56xx`: set DR of all operators.
- `57xx`: set DR of operator 1.
- `58xx`: set DR of operator 2.
- `59xx`: set DR of operator 3.
- `5Axx`: set DR of operator 4.
- `5Bxx`: set D2R/SR of all operators.
- `5Cxx`: set D2R/SR of operator 1.
- `5Dxx`: set D2R/SR of operator 2.
- `5Exx`: set D2R/SR of operator 3.
- `5Fxx`: set D2R/SR of operator 4.