From mboxrd@z Thu Jan  1 00:00:00 1970
From: Richard Henderson <rth@cygnus.com>
To: wilson@cygnus.com (Jim Wilson)
Cc: mrs@wrs.com, egcs@cygnus.com
Subject: Re: m68k structure packing
Date: Tue, 30 Sep 1997 21:13:00 -0000
Message-id: <199710010411.VAA23924@dot.cygnus.com>
References: <199710010258.TAA29729@cygnus.com>
X-SW-Source: 1997-09/msg01175.html

> Gcc knows that it needs to access bitfields differently when a structure
> is packed.  It may be that gcc will generate correct code with your patch
> for cases that would ordinarily fail ...

Yes it will.  I've used this on a number of occasions to get 
machine independant unaligned loads.  It works on all machines,
even if gcc has to resort to byte loads and shifts.


r~