[Info-vax] C limitations, was: Re: VMS process communication
bill
bill.gunshannon at gmail.com
Thu Apr 13 15:20:36 EDT 2023
On 4/13/2023 5:12 AM, Jan-Erik Söderholm 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...
>
They always referred to it as "Mark Memory Parity". Knowing the
function of parity I never understood just what they thought it did.
bill
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