On Tue, Jul 17, 2012 at 1:41 PM, Miod Vallat <m...@online.fr> wrote:
>> This is still based on the fairly old Loongson 2F; the gen-3 CPUs being
>> available only in laptops, right? Not the easiest naming scheme to
>> follow...
>
> Nope, you are confusing things.
>
> 1, 1A, 1B: 32-bit only processors. Move along.
>
> 2, 2A, 2B, 2C: 64-bit but extra instructions conflict with official MIPS
> opcode assignment. ``Oops''. Hard to find, if at all, nowadays.
>
> 2D: I'm not sure it has even shipped.
>
> 2E: found on the first Fuloong generation; might run OpenBSD/loongson,
> some tinkering work probably necessary, impossible to find at least in
> Europe (in other words: I have not been able to get one, therefore I can
> not confirm it works, and I won't bother unless one 2E system shows up
> in my mailbox or on my doorstep).
>
> 2F: found on the currently available systems: Fuloong 2F (6003, 6004),
> Yeeloong laptop, Linloong all-in-one PC (with 17" LCD). All these
> systems are supported, a not-so-insignificant number of our developers
> have one, and they work well.
>
> 2G: fixed 2F without the branch prediction bug. I am told the recent
> Yeeloong and Fuloong are fit with 2G processors. I am not even sure
> these can be told apart in software, as 2G supposedly reports itself as
> a 2F level.
>
> 3A: the long-awaited new generation. Supposed to ship in Q3 2010, then
> S2 2011, then S1 2012, then ``anytime soon''. I know that the GCC
> compile farm has two dekstop 3A motherboards, and one of the
> FreeBSD/mips mailing list subscribers has got one about two weeks ago,
> too. I have no idea how he got his, given that the systems are still not
> available to mere mortals. I am not expecting such systems to be
> available until next year (and I'd really like to get a motherboard,
> rather than
> yet-another-laptop-which-keyboard-will-die-after-two-months, but beggers
> can't be choosers).
>

You can order a 3f 'sample' laptop but it is considered
pre-production, and the cost is over $800 US. Though I'm not sure if
that's how the FreeBSD user got theirs.

-B

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