Lpc2000

Tom Walsh wrote:

>>So, I never used bit-fields again ...

Ok, So 'I never had a reason to use bit-fields since then' :)

> Bitfields are usefull for tearing apart bit-packed fields within data or 
> assembling it.  While you are correct in stating that use of a bitfield 
> against a register which expects a finite length operation (32 bit in 
> your case), it is not correct to condemn then out of hand just because 
> you had a bad experience.  "you burn you learn"...

Yes, this was definitely a learning experience - one I am sure
others will face - except perhaps for those reading this
thread.

Thanks for the pointers on legitimate uses of bit-fields.

Here's a question for you. What happens on different-endianness
machines regarding bit-fields? Eg. lets say you analyze FAT headers
(which was discussed a few emails back). If I recall correctly,
they used bitfields and packed structures.

Do the layouts of entries match on different endianness machines,
or do you have to be careful there too?


Cheers
Dave