🚀 go-pugleaf

>In article <76000290@p.cs.uiuc.edu> gillies@p.cs.uiuc.edu writes:
>>cannot support virtual memory.  This is because the 68000 chip has a
>>design flaw that doesn't allow virtual memory to be implemented.

In article <39513@yale-celray.yale.UUCP> jellinghaus-robert@yale.UUCP writes:
>Someone really should tell Sun or Apollo.  They've produced many workstations
>with 68000's running UNIX, which DOES support virtual memory and page swapping.
>Gosh, wonder how they do it?

I can't speak for Sun or Apollo (what? I work at Sun!), but when I was at
Metheus we did it too.  It took *2* 68000s.  I suppose a big wad of external
logic would also work.  Either way, the problem is COST!

>Virtual memory doesn't REQUIRE hardware memory management.  It's a lot easier
>if you have the PMMU, but it's not impossible to do on a 68000.

Computer users don't REQUIRE price/performance either.  Perhaps I could
interest you in a TRS-80 Model I ?   Although, it actually draws characters
on its screen faster than a Mac does.  Hardware character generation isn't
REQUIRED, but it sure speeds things up!  (Of course, you lose some flexibility
there ... :-)

	Howard A. Landman
	landman@hanami.sun.com
	UUCP: sun!hanami!landman