Some minor changes

I've added (or will add, depending on whether this gets to the list 
before the CVS syncup does) a couple of new opcodes.
find_type(INT, STR) returns the integer identifier number for any 
known PMC type. That means you can now do:
 find_type I0, "PerlArray"
 new P0, I0
instead of
 new P0, .PerlArray
Not a big deal for builtin types, but it means that you don't have to 
tell the assembler about every new PMC class that gets added to the 
system. (At the moment you do need to add the new class to 
global_setup.c still, but I'm working on fixing that so PMCs can be 
dynamically loadable)
lookback(INT|NUM|STR|PMC, INT) looks back up the user stack for the 
entry you asked for with 2ドル and puts it in 1ドル. Types are checked, so 
no sneaky putting a PMC pointer into a string register or anything. 
If 2ドル is negative, it counts up from the bottom, with the bottommost 
entry in the stack being -1.
-- 
 Dan
--------------------------------------"it's like this"-------------------
Dan Sugalski even samurai
dan@sidhe.org have teddy bears and even
 teddy bears get drunk

• Some minor changes by Dan Sugalski
• Re: Some minor changes by Kevin Falcone