9 Feb
2018
9 Feb
'18
1:59 p.m.
On 02/09/2018 04:18 PM, Sean Conner wrote:
It was thus said that the Great allison via cctalk
once stated:
Not a processor I use much bt there is a version of the 6809 that has
additional modes.
Thats the Hitachi 63b09 wich is 6809E compatable save for it has an
extended
mode and more registers.
I use that as an example of compatibility or extensions another more
familiar
is the NEC V20 fits in the 8088 socket but has enhanced performance and
native
8080 emulation mode.
Allison
The industry was loaded with that the 6502 series
also had that going on
as well as the 6809 and others.
Do you have any information about undocumented
opcodes for the 6809?
-spc