Jim Battle (hey, that's me!) wrote:
I know that the TI CC-40 and TI-74 calculators (and
I'm sure there are
others) used base 100 arithmetic -- two digits per byte like bcd, but in
some ways more straightforward. When they normalized their mantissa
there was two digit granularity.
False memory, I guess. I dug out the appropriate book and found that in fact
they do use BCD representation internally. However it is still true that they
normalized bytewise instead of nibblewise.