Virtual vs Physical memory (was Re: Designing around a 6502 )

From: ben franchuk <bfranchuk_at_jetnet.ab.ca>
Date: Wed Feb 12 16:35:01 2003

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.
Received on Wed Feb 12 2003 - 16:35:01 GMT