Re: 386 issue

[William.Lott@cs.cmu.edu]

Rob_MacLachlan@LISP-PMAX1.SLISP.CS.CMU.EDU writes:
>     Subject: 386 issue
>     Date: Fri, 17 Apr 92 00:21:18 -0400
>     Message-ID: <1116.703484478@ARDATH.SLISP.CS.CMU.EDU>
>     From: William_Lott@ARDATH.SLISP.CS.CMU.EDU
>     
>     Rob,
>     
>     The 386 has no way of trapping unaligned memory references.
>     Therefore, I think it would be a good idea if we had VOPs that
>     just verified the low-tag of a pointer.
...
> I suppose.  This would happen under weakened checking?

Either that or always.  How much of this does weakened checking do
now?

-William