[cctalk] Re: RS232 then and now (bitbanging)

[Paul Koning via cctalk]

> On Feb 15, 2025, at 4:10 AM, Bill Duncan via cctalk <cctalk@classiccmp.org> 
> wrote:
> 
> On Mon, Feb 03, 2025 at 06:09:28AM +0000, Chuck Guzis via cctalk wrote:
>> On 2/2/25 17:22, Will Cooke via cctalk wrote:
>>> 
>>> 
>>> Not quite lost.  The 1802 crowd is doing amazing things.
>>> See https://groups.io/g/cosmacelf/message/33678
>>> 
>>> And if you know anything about the 1802, it's, uh, not so speedy.
>> 
>> At its introduction,it was one of few static CMOS CPUs.  You could run
>> it from batteries and stop the clock when not needed.  Perfect for
>> telemetry.  I think the Intersil 6100 was another, but required 12-bit
>> wide memory.
>> 
>> --Chuck
> 
> ..and it had a "sex" instruction.

The PDP-11 almost did, but it was caught before release and renamed ""SXT".

> IMO, one of the original RISC cpus.. LoL..

I would apply that label to the CDC 6600 (1964).

        paul