For the supermac firmware - it used python with the capstone disassembly engine — specifically CS_ARCH_M68K with CS_MODE_M68K_020 for 68020 instruction support. I had it try to use whatever it could find in pacman/aur on my linux machine. It also had to figure out the checksum that nubus firmware uses - it ended up searching the web and finding some project on github that described what to do for this, and figured this out:
"Rotate-left-1 + add, 32-bit, init=0. Computed over the full 64KB ROM with the CRC field (bytes 0xFFF4-0xFFF7) zeroed out."
I hope the card comes soon, it seems like it's been in limbo for a week.
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