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A failed competitor of Game Boy, straight from Taiwan. Released in 1992, it had a tilting screen, $50 price tag, very fast 4 MHz 6502-like CPU, framebuffer graphics and sound capabilities similar to Game Boy. These are 2 pulse wave channels (same as on GB), barely working PCM channel and noise channel, also not unlike Game Boy. No hardware envelopes or zombie mode, though.

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Channel Configuration

  • 2 pulse wave channels (similar to Game Boy)
  • 1 PCM channel (4-bit DMA)
  • 1 noise channel
  • No hardware envelopes
  • No zombie mode

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Effects

EffectDescription
12xxSet duty cycle/noise mode
Range: 0-3 for pulse
Range: 0-1 for noise

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Sample Channel Information

The sample channel is a 4-bit DMA channel with 4 playback frequencies (1953.125, 3906.25, 7812.5, and 15625 Hz) assigned to the notes C, C#, D, and D# in all octaves.
These frequencies will differ if a custom clock rate is used.

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Sample Specifications

  • Max sample size: 4 kilobytes (8,192 samples)
  • Samples are padded to multiples of 32 samples
  • Loop points are ignored

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Chip Configuration

The following options are available in the Chip Manager window:
  • Swap noise duty cycles: Enabled by default. When enabled, short noise is on odd-indexed duty cycles, like on Game Boy, rather than even
  • Stereo pulse waves: Disabled by default. When enabled, it forces pulse channel 1 to the right output channel and second pulse to the left output channel

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Instrument Editor

This chip uses the Watara Supervision and Generic Sample instrument editors.

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