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1.7 KiB
1.7 KiB
Game Boy
the Game Boy is one of the most successful portable game systems ever made.
it has stereo sound, two pulse channels, a wave channel and a noise channel.
effects
10xx
: change wave.11xx
: set noise length.0
: long1
: short
12xx
: set duty cycle.0
: 12.5%1
: 25%2
: 50%3
: 75%
13xy
: setup sweep. pulse 1 only.x
is the time.y
is the shift.- set to
0
to disable it.
14xx
: set sweep direction.0
is up and1
is down.
info
this chip uses the Game Boy instrument editor.
chip config
the following options are available in the Chip Manager window:
- Disable anti-click: waveform switching requires a phase reset, which may cause clicks. Furnace uses a wave-position predicting algorithm to minimize these clicks. enable this option to disable it.
- Chip revision: sets the chip model to use. most of these lack audible difference, but Game Boy Advance fixed the wave channel's inversion.
- Wave channel orientation: allows you to set how is wave data written.
- in Game Boy:
- Exact data: wave data is written as-is. it will appear inverted in the output.
- Exact output: wave data is inverted so it appears correctly in the output.
- in Game Boy Advance:
- Normal: wave data is written as-is.
- Inverted: guess!
- in Game Boy:
- Pretty please: only for compatibility with Synchronize.dmf. do not use.
links
-
Gameboy sound hardware - detailed technical information
-
GameBoy Sound Table - note frequency table