setjmp/longjmp

[Chuck Simmons]

> Alas, even pushing a constant on every function call is a lot of expense
> when every call has to pay it just so a few can do longjmp().
>
>				Henry Spencer @ U of Toronto Zoology

I find it hard to believe that your compiler is so good at optimizing
code that a single instructuion (okay, 2 instructions on our honeywell)
on each function call is going to make that much difference.

dartvax!chuck