[Info-vax] C limitations, was: Re: VMS process communication

[Simon Clubley]

On 2023-04-13, Jan-Erik Söderholm <jan-erik.soderholm at telia.com> wrote:
> Den 2023-04-12 kl. 18:26, skrev bill:
>
>> But that is only during communications.  I am not aware of any program
>> that computed the value of a character in transit and cared what that
>> value was.  Pr1me set the values in their firmware forcing all programs
>> in any language to deal with an ASCII set that had values from 128 to
>> 255.
>
>
> Now, if the highest bit really was a parity bit, you would end up with
> values in the whole range 0-255, depending on the number of 1's in the
> lower 7 bits.
>
> But maybe that wasn't a real parity bit...
>

There's such a thing as mark parity (and space parity) although it
sounds like you've never had the misfortune to come across them... :-)

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.