register variables

[Chris Torek]

> Sounds like the Pyramid compiler has a problem there, to the extent that
> it's not following the spirit of the `register' declaration.

It *is* kind of tacky.  It works, though.

> Also, it's not generally possible to declare register variables before
> ordinary variables--parameters are effectively just initialized local
> variables, but the syntax requires that they all be declared before any of
> the locals.  The parameter-vs-local distinction is another reason that
> compilers ought not to do what the Pyramid compiler is described as doing.

Actually, since on Pyramids the first 12 arguments to a procedure
are already in registers (different from the 12 local registers)
this doesn't matter.  Again it just ignores the register declarations,
this time because of the subroutine call architecture.
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 4251)
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