25 Oct
2010
25 Oct
'10
3:56 p.m.
There was talk of the VAX design being the inspiration
for the Motorola 68k. Isn't it more likely that the PDP11 influenced the design of
both the VAX and the 68k?
Big microcoded CISC was the dominant thinking in computer architecture
at the time, so it is really hard to say that X influenced Y.
The engineers did not believe the Motorola design was
practical and we worried about a large 64 pin chip in the environment of a military
helicopter's avionics bay (G forces, vibration, expansion, cooling etc) and it was
decided to go with the 48pin Zilog Z8001 instead.
Why not use PGA or Flatpack?
--
Will