bfranchuk at jetnet.ab.ca
Sat Oct 21 11:57:19 CDT 2006
Chuck Guzis wrote:
> While it's true that stack-based architectures can provide a lot of
> bang-for-the-buck, like single-accumulator machines, it's difficult
> to leverage parallelsim to improve performance.
Well all the stack machines I have seen are FORTH or PASCAL or SMALL-C.
The code generation is simple 1 pass recusive complier. Once you stop
and do better code generation your stack access is cleaned up.
> I'd venture that it's awfully difficult to design a stack machine
> that can compete with a 3-address architecture with a large register
> file, multiple pipelined functional units and instruction scheduling.
That is because your stack is unrolled into the register file.
> Would you consider the Burroughs B5000 to be a stack machine?
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