[rescue] sparc10 cpu - what to do.

Jonathan Patschke jp at celestrion.net
Mon Dec 19 09:01:01 CST 2016

On Sun, 18 Dec 2016, Phil Stracchino wrote:

>> Itanium was touted as the real any only way forward by Intel until AMD
>> extended the i386 instruction ABI to 64 bits.  Rather regrettable that AMD
>> did that, as IA64 threw away a lot of the things that make i386 so
>> problematic.
> The thing is, amd64 solved 90% of the real-world problems ia64 did, with
> maybe 20% of the added complexity.  And Intel never did really leverage
> the remaining 10% effectively anyway.

Pretty-much exactly that.

If you're trying to go to the moon, you'd rather take a rocket than an
outhouse strapped down with propellant, but Intel ensured this robust
economy of industry-standard known-quantity outhouses, and AMD just
happened to have a lot of propellant in their fabs.  And here we are.

In the fifteen or years since, though, amd64 (and its more common Intel
spin) has become a very nice ABI, if you can stay in long mode.  EFI,
despite being not as nice as OpenBoot and despite dependent upon the
bletcherous FAT filesystem, is a hundred times better than that BIOS

With most of the interior buses on a modern PC all being PCIe wearing
different funny hats, differential signals all over the place,
firmware-level device-and-config trees, IOMMUs on most CPUs, and a bootup
model that is no-longer "blit this block to 0x7c00 and run it," the design
of the disposable desktop is nearly as elegant as anything the
minicomputer makers gave us 30 years ago.

Jonathan Patschke
Austin, TX

More information about the rescue mailing list