20 May
1998
20 May
'98
1:45 p.m.
On Wed, 20 May 1998, Tony Duell wrote:
R0:=R0 and not 1,
and
R0:=R0 and (not 1),
are totally different makes life interesting. They both do the same
thing, but the second one can't always be used. If anyone wants an
explanation, please ask.
OK, I give up. I would think that the "and" would be an ALU function, but
the "not 1" would be evaluated to a constant by the assembler. Does one
of the "not 1" forms mean that the ALU should perform the operation
(which it couldn't if an op was already scheduled)?
-- Doug