2026-09-18 15:21 UTC
@kernellogger@hachyderm.io lol okay so I had to check, and the first page of the memory models section in the SPARC v9 book talks about having to support TSO for compatibility.
Replies (2)
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@kernellogger@hachyderm.io 2026-09-18 15:27
@vathpela@infosec.exchange 😆 But guess you are… special, so #xkcd "Lucky Ten Thousand" does not really apply (or is more likely something like "Lucky Ten Million". https://xkcd.com/1053/
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@penguin42@mastodon.org.uk 2026-09-18 16:51
@vathpela@infosec.exchange @kernellogger@hachyderm.io I wonder what SPARC designers were worried about being compatible with - what multiprocessor systems and multithreaded software was commonly around at the time? (An x86 oddity I don't think is mentioned there is that it has a get-out, where a core accessing it's own writes is allowed to go out of order; some other architectures are stricter so emulation on x86 need orderings enforcing still).