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game-boy.md

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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: long
    • 1: 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 and 1 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!
  • Pretty please: only for compatibility with Synchronize.dmf. do not use.

links