[HECnet] DU11 vs. DUV11

Brian Schenkenberger, VAXman- system at TMESIS.COM
Sat Jan 5 18:07:52 PST 2013


Johnny Billquist <bqt at softjar.se> writes: 

{...snip...}
But it seems very likely that it's the byte write that is the problem.
That becomes a read-modify-write cycle on the bus, since everything on
the bus is accessed as words. And accessing the DUV-11 on a PDT-11 is
extremely slow. Just guessing, mind you... 

But wouldn't all benefit from that?   Why conditionalize it?

-- 
VAXman- A Bored Certified VMS Kernel Mode Hacker       VAXman(at)TMESIS(dot)ORG

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