70's computers

[allison]

On 10/25/2018 05:37 PM, Eric Smith via cctalk wrote:
> On Thu, Oct 25, 2018 at 11:45 AM Chuck Guzis via cctalk <
> cctalk at classiccmp.org> wrote:
>
>> Didn't at least one of the more popular MPU designs employ a serial ALU?
>>  TMS9900?
>>
> I don't think the TI TMS9900 was bit-serial internally, but the RCA CDP1802
No it the 9900 definitely is not.  The 9900 does have that odd serial
bit addressed CRU
interface.

The 1802 has been verified has a serial ALU.
> and National Semiconductor SC/MP (ISP-8A/500) and SC/MP II (ISP-8A/600)
> were.
I have no information that the SC/MP or SC/MP II more so are internally
serial.
The do have a serial register to the outside..

There are very few CPUs that had serial insides. 

Allison