🚀 go-pugleaf

Michael Slater's Microprocessor Report also has a collection of IBM's
AT patents. They might be cheaper if you got them from the patent
office but the price is not unreasonable and buying it from MR will
probably save enough time that it really is the cheaper way to go. 

Frankly, I think IBM's tech refs are pretty lousy documentation.  They
are adequate for getting a schematic of the AT but there's a lot of
missing stuff like PAL equations and theory of operations or even
useful signal descriptions, much less timing. 

Of course, having botched up the AT bus as a standard, IBM then
proceeded to abandon it. Talk about anti-social.

--
Phil Ngai, phil@diablo.amd.com		{uunet,decwrl,ucbvax}!amdcad!phil
"Today surgeons are highly respected but they were once just grave robbers."