Bob La Quey wrote:
Or better yet check out Forth based archtectures.
I do not have the time nor energy to get you guys
to the point of understanding all of this ...
but try looking at
http://www.ece.cmu.edu/~koopman/stack.html
or read the book
http://www.ece.cmu.edu/~koopman/stack_computers/index.html
Reading this thread is like revisiting the mid 70's ...
Those who cannot remember the past are condemned to repeat it.
George Santayana
Those who cannot forget the past are condemned to repeat it.
BobLQ "Comment on the situation in Northern Ireland"
What has happened is that economics trumped technology
and x86 register based architectures beat out far superior
stack based multiprocessors.
Ummm, excuse me. I seem to remember a rather popular stack-based FPU
that won the game in the not-so-distant past.
And it was so damn annoying to produce good code for it that one of the
first things that company had to do in its later incarnations was create
a 0-cycle FXCHG so that it could be treated as a random access register
system.
While I hear lots of hyperbole about stack-based systems like Forth, a
whole lot of very smart people seem to hit walls that don't seem to be
surmountable from stack-based systems.
And, in fact, some of the newer VM's are even moving away from
stack-based. Lua, IIRC, has changed from stack-based to register-based
VM and promptly picked up quite a performance boost.
-a
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