Anyone of you have some documentation about the Disk/File system format for Motorola M68000 EXORMACS?

I found this pdf: https://bitsavers.org/pdf/motorola/versados/M68KVSF_D7_VERSAdosSysFacilities_Oct85.pdf

it has an example first sector on page 346 (pdf) / page number 336 but not much explanation of, or I couldn't find it because it's not searchable

#retroComputing #M68k

Anyone want to help figure out the Lisa A-trap dispatcher? I put a disassembly in a gist: https://gist.github.com/eschaton/2c9cdcddccd3dde177005872ddd6e946

#retrocomputing #lisa #m68k #MARCHintosh

Lisa A-trap dispatcher code.

Lisa A-trap dispatcher code. GitHub Gist: instantly share code, notes, and snippets.

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GitHub - 54weasels/sun3_60

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Let's Chat about Return to Dark Castle (2026) w/ Mark Pierce & Zack Black!

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GitHub - AmigaGPU/AmigaGPU: Config files for my GitHub profile.

Config files for my GitHub profile. Contribute to AmigaGPU/AmigaGPU development by creating an account on GitHub.

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This new 68000 bears an original-looking Motorola logo.

Does NXP (or whoever licensed the #m68k IP) still labels them like this, or did they send me a vintage MC68000P8 part?

#amiga #vintagecomputing

I soldered a new 64-pin socket on my #Amiga 500+ board under restoration and plugged in the #m68k.

It's still too early to tell if it works, but I've seen it toggle the R/W signal a few times at power on.

To make further progress, I need to find a Gary, the gate array which controls chip selects and various bus signals.

#vintagecomputing #retrocomputing #commodore #electronics

I ordered a single #m68k from the YUXINYUAN store on AliExpress for ¥150 + ¥300 for international shipping from Shenzhen ($2.87 total).

It arrived here in Tokyo in just 4 days. Yes, wow.

Having just read some #PDP11 assembler code, and similar in #m68k, #sparc, and #i386, my big take-away was that literally everything in computing would have been better in a world where #Zilog won.