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  • Hacker News
  • I had to do this at work once
    by girl2
  • I used to love doing this sort of thing back in the early '90s. What a nostalgic read! Funny that there are still people doing it today.
    by robinhouston
  • I fondly remember patching 68K code in memory on an industrial control system my company was developing. I was able to decode the instructions just by looking at the hex display. Daresay, I could not do that with any modern system.
    by TomMasz
  • I thought option-resize was supposed to resize the default (new document) window?

    My recent pet peeve is that macOS doesn't seem to remember window sizes and locations properly. Things are certainly complicated by multi-monitor setups, but it seems like some sensible default behavior could be implemented.

    I don't dislike the column browser, but I wish macOS would preserve/revive its spatial UI in both the Finder and document window positions.

    by musicale
  • For people not used to reading MC8k assembly [1], it's helpful to point out the basic fact that the syntax is in general

        opcode  source, destination
    which is the other way around from most contemporary ISA:s. So a line like

        move.l d0, -(a7)
    will first decrement the value of register a7, then write the contents of register d0 to the resulting address (it's a "push" for a downwards-growing stack).

    Edit: added Wiki-linkage.

    [1]: https://en.wikipedia.org/wiki/Motorola_68000#Instruction_set...

    by unwind
  • This is beautiful, but the real takeaway should be that even proprietary software you only have binaries for is still mutable. The computer runs the code you want it to run. We always need to maintain that and prevent scenarios where general purpose computers stop being the default.
    by mjg59

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