Forth like interpreter

[Greg Ewing]

Christian Tismer wrote:
> 
> The real "overhead" is the check on default (cmp eax, 140)

In principle, this check could be eliminated by making the
jump table have a full 256 entries and filling the unused
ones with pointers to the default branch. 

Whether any C compiler could be persuaded to do this I don't 
know. What about writing the switch statement with explicit
cases for all the unused opcodes? Seems like it should work,
unless the compiler is trying to be just *too* smart...

-- 
Greg Ewing, Computer Science Dept,
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