[NBLUG/talk] Bare metal question

[ME]

> On Sunday, May 25, 2003, at 11:05 US/Pacific, ME wrote:
>> I can't think of anything that can be stored at an address in RAM that
>> can't be stored in a register. (Note, "an address" being the same
>> bit-size/width of the largest register.)
>
> I will make this one nitpicky distinction.  DMA devices can read
> from/write to memory, but cannot access registers.  So what cannot be
> stored in registers is DMA I/O data.

Oh yeah. Forgot about DMA. There may be others I have forgot about. Any
other exceptions are welcome. :-) (Nitpicky or not.)