[Simh] pdp11 and unix

[Johnny Billquist]

On 2016-02-26 14:49, Clem Cole wrote:
>
> On Thu, Feb 25, 2016 at 10:26 PM, Gregg Levine <gregg.drwho8 at gmail.com
> <mailto:gregg.drwho8 at gmail.com>> wrote:
>
>     I've seen Assembler output from a PDP-11 someplace. It's always
>     reminded me of a frustrated 6502 microprocessor or a 6800 series one.
>     But only just.
>
>
> Interesting- the 68000 should remind you of the PDP-11.   What would
> become the 68K (remember it was a skunk works project and not an
> official one), was a definite reaction to the 6800/6809 not being good
> enough (single accumulator system; not general registers).   As someone
> that cut his teeth with the 6502 (and 6800) at the same time as I
> learned the 11, I never considered them similar.

Yeah. I don't understand that comment either. Nothing could be further 
from the PDP-11 than the 6502 or a 6800. (Well, maybe some things are 
further, but there pretty much no similarity between the PDP-11 and 6502 
or 6800. The 68000 on the other hand is clearly inspired by the PDP-11.)

	Johnny