If "casx" isn't an intel instruction, then forget about using it on that processor!

All modern SMP & multi-core processors have 'atomic compare and swap' instructions. (IBM CPUs invented them back in the early 1970s.)

On Intel & AMD x64 processors thay are called variously: CMPXCHG8B & CMPXCHG16B (amongst other variations).

The question was purely about the particular semantics of the Solaris version as that was used by the researchers of the paper I was reading. It was important for me to understand those semantics so that I could work out whether the x64 equivalents were compatible with their algorithms. They are (kinda).

None of this seems relevant to perl shared memory though - where does perl come into this???

It is. Or rather it will be soon.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

In reply to Re^2: OT: Solaris expertise? by BrowserUk
in thread OT: Solaris expertise? by BrowserUk

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