[virtmach] parrot VM?
Sat, 13 Jul 2002 16:03:13 -0500
Chris Lattner wrote (Sat, Jul 13, 2002 at 12:30:23PM -0500) :
> > But aren't there some portability issues with a register VM?
> > Wouldn't you want to map the VM registers to real registers
> > (since you want performance in the first place)? That
> > might make it difficult to have a register VM that runs fast
> The idea is not to emit a certain number of registers (GNU lightning uses
> 6 always for example [I believe]), but to use an infinite number of
> registers, then run a register allocation pass as part of code generation,
> to convert it into the optimal number of registers for the actual
So the VM has to run this register allocation pass
on the platform-independent bytecodes before it executes
them? Any examples (someone mentioned Lua?) of
a register VM that does this?