@rygorous@mastodon.gamedev.place
Post #2409995
2025-09-09 02:02 UTC
@regehr@mastodon.social @steve@discuss.systems The VAX ISA turns out to be, inadvertently, _extremely_ hostile to an implementation that tries to decouple frontend and backend, which ultimately broke its neck.
x86 has many flaws, but nothing that makes it so that there is a massive discontinuity where there's basically nothing you can do about a particular problem until you have like 10x transistor/power/whatever budget, which is the kind of thing that kills archs.
Replies (2)
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@rygorous@mastodon.gamedev.place 2025-09-09 02:03
@regehr@mastodon.social @steve@discuss.systems x86 has always had a staircase of options where you can gradually throw more budget and it and get incremental wins every gen. It's a crooked staircase with some trick steps, but it's a staircase, not a brick wall. :)
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@argv_minus_one@mastodon.sdf.org 2025-09-09 03:54
@rygorous@mastodon.gamedev.place What caused the demise of m68k? @regehr@mastodon.social @steve@discuss.systems