polpo / pigus

Gravis Ultrasound emulator on an ISA card, using bare metal on a Raspberry Pi 3/4/CM4

PiISA / PiGUS

NOTE: this repo no longer contains the PicoGUS project for the Raspberry Pi Pico. It has been moved to https://github.com/polpo/picogus!

ISA card emulation on the Raspberry Pi 3, 4, and CM4. Initially focusing on Gravis Ultrasound (GUS) sound card emulation.

This is a work in progress in the experimentation phase. It can emulate a GUS and produce sound but things are nowhere near perfect! Please see the Wiki for current status.

For "big" Raspberry Pi:

Open Source Credits

• circle
• circle-stdlib
• gus.cpp from DOSBox-staging
• Initial PCB design and AdLib emulation based on RPiISA

License

The hardware portions of this repository (hw/, directory) are licensed under the CERN OHL version 2, permissive.

The software portions of this repository (sw/, pgusinit/ directories) are licensed under the GNU GPL version 2.