Tuesday, November 22, 2022

Emulate any PC ISA card with an FPGA and Raspberry Pi #VintageComputing #FPGA #RaspberryPi @hackaday @Raspberry_Pi

One of the reasons the IBM PC platform became the dominant standard for desktop PCs back in the mid-1980s was its open hardware design, based around what would later be called the ISA bus. Any manufacturer could design plug-in cards or even entire computers that were hardware and software compatible with the IBM PC.

ISA has been obsolete for most purposes since the late 1990s. Some ISA cards such as high-quality sound cards have become so popular among retrocomputing enthusiasts that they now fetch hundreds of dollars on eBay.

In the videos below, you can see eigenco demonstrating the system on a 386 motherboard that only has a VGA card to hook up a monitor. By emulating a hard drive and sound card on the Pi, he is able to run a variety of classic DOS games with full sound effects and music. The sound cards currently supported include AdLib, 8-bit SoundBlaster, Gravis Ultrasound and Roland MT-32, but any card that’s documented well enough could be emulated.

See the first and second video below and more on Hackaday and the creator’s GitHub.

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