On Mon, 20 Aug 2001 19:12:38 -0400 (EDT), you wrote:
>On Mon, 20 Aug 2001, Erik Mooney wrote:
>
>> To add to the list, Williams/Bally pinballs used a 6509 CPU architecture right
>> up until about two years ago.
>
>Was it a 6509 or a 6809? I thought Williams used the 6809 in at least some
>of their machines. It's the most incredible 8-bit cpu that ever lived.
Doh, you're right, the pinballs are 6809.
>BTW, what *is* a 6509? I.e. how does it differ from the 6502?
According to this page: http://mirror.nol.at/chipdir/n/65.htm
it's a "6502 with 1 MB address space". Dunno how the extra space is
addressed... segment registers?
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