This project is a bootloader and firmware for a Macintosh ROM SIMM programmer, along with control software for Mac OS X, Windows, and Linux. The ROM SIMM is compatible with the SE/30, IIx, IIcx, IIci, ...

Place chip in socket Connect the Arduino board to the computer Connect the 12V power supply On the computer run at89overlord -f PATH_TO_INTEL_HEX_FILE ...