NuBusFPGA/README.md
2022-04-22 23:00:25 +02:00

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# A FPGA on a NuBus card...
## Goal
The goal of this repository is to be able to interface a modern (2021 era) [FPGA](https://en.wikipedia.org/wiki/Field-programmable_gate_array) with a [NuBus](https://en.wikipedia.org/wiki/NuBus) host, specifically Apple's [Macintosh II](https://en.wikipedia.org/wiki/Macintosh_II_family) and [Macintosh Quadra](https://en.wikipedia.org/wiki/Macintosh_Quadra).
## Current status
First prototype is working in a Quadra 650. It implements a basic single-resolution, depth-switchable (1/2/4/8/16/32 bits) unaccellerated framebuffer over HDMI. The framebuffer can be used as secondary/primary/only framebuffer in the machine running OS8.1. QEmu tests indicate this should work with 7.1 & 7.5/7.6 as well.