Re: The history of the Linux OS

Brandon S. Allbery KF8NH (allbery@kf8nh.apk.net)
Thu, 26 Nov 1998 21:36:50 -0500

In message <199811261356.OAA07082@www.lillfab.se>, Daniel Engstrom writes:
+-----
| Or the engineer at IBM who decided that only decoding the low 10 bits
| for i/o port accesses was enough for all future.
+--->8

The 8086/8088 only had 10 bits of I/O addressing, IIRC. The limitation on
80286+ was probably intended to avoid aliasing problems with 8-bit cards.

-- 
brandon s. allbery	[os/2][linux][solaris][japh]	 allbery@kf8nh.apk.net
system administrator	     [WAY too many hats]	   allbery@ece.cmu.edu
carnegie mellon / electrical and computer engineering			 KF8NH
			  Kiss my bits, Billy-boy.






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