multiple thanks

[Kim.fateman@Berkeley]

Thanks for presenting a proposed mechanism for multiple values which seems
to penalize the producers of multiple values (and the implementors of 
lisp systems).  Yet,now there is this hidden cost in
using some m-v producers: should one use them, since in some
circumstances they have to do a fair amount of stack-grovelling?
(e.g. one might think that "floor" would always be fairly cheap to use).