Re: opcodes

[Matt Wakeley <matt_wakeley@agilent.com>]

> Suggestion:
> 
> Upper 3 bits of the opcode define 8 different classes of
> operations.

I think you guys are overloading the opcode.  What does all this "classes of
operations" buy you?  Say you define these "classes" and then have many
commands for that class, you run out of opcodes for that class.  Beside, for
the software implementations, shifting and testing all these bit fields will
be more cpu costly than a simple jump table...

-Matt