Re: Caclulating operand stack size

> I am developing a stack-based virtual machine similar to the JVM.
> Unfortunately, everytime I push or load something onto the operand
> stack, I have to do this:
>
> if(++SP == stackSize)
> growStack();
>
> I would like to avoid this dynamic size check because it slows things
> down. The JVM requires routines to specify a stack size limit as I
> recall.


This is such a minor inefficiency and provided your stack size is a
reasonable ammount it is very unlikely to be a real problem. If you
look at other VM's you will realize that inefficiencies like this do
not matter in the grand scheme of things.


But calculating and allocating extra on a
function/method/module/class/program basis if needed would be great.


Aaron

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