At 04:12 AM 11/11/2001 -0500, James Mastros wrote:
>On Sat, 10 Nov 2001, Dan Sugalski wrote:
> > At 01:39 PM 11/9/2001 -0800, Brent Dax wrote:
> > >Dan Sugalski:
> > >Of course. Random question only very tangentially related to this: is
> > >INTVAL (and thus the I registers) supposed to be big enough to hold a
> > >pointer?
> > INTVAL shouldn't ever get a pointer in it. We're not going to be casting
> > pointers to ints and back anywhere, except possibly in some of the
> > deep'n'evil spots (like the memory allocator).
>Correction (and please correct this correction if I'm wrong):
>An INTVAL should never get a /native/ pointer in it. However, when we do
>relitave or absolute jumps in parrot code, the destination is an INTVAL.
>
>Also, there's a good chance that PMC constants or non-constants may be at
>some points native pointers, and it would probably help effinceny for
>sizeof(INTVAL)==sizeof(PMC), no?
Nope. PMCs that hold pointers should stash them in the pointer slot of the
PMC structure. (If I said we were requiring that to be a pointer to a PMC
or a buffer structure, I relent--it must for GC, but if the PMC is tagged
appropriately so the GC won't follow it, it can point to anything)
Dan
--------------------------------------"it's like this"-------------------
Dan Sugalski even samurai
[EMAIL PROTECTED] have teddy bears and even
teddy bears get drunk
