12 Feb
2003
12 Feb
'03
8:35 a.m.
Roger Merchberger wrote:
So where would that put the Hitachi 63C09? It's
6809 compatible, but in
6309 mode, it has 4 8-bit registers, combinable to 2 16-bit registers
that you can do full 16-bit arithmetic on... but wait! There's More! No,
not Ginsu Knives.....
Having brought the subject up, I tend to think the 6809 is a 16 bit cpu
because of the good addressing modes and the Intel 8086 a 8 bit cpu
because of the lack of them. Also OS/9 for the 6809 was very
nice system. Ben.