[Moims-sc] [CCSDS] Enumerations Optimization - UShort to UOctet

Coelho, César cesar.coelho at cgi.com
Wed May 24 14:24:01 UTC 2023


Hi Serge,

The objective is to simplify the Standard.
I don’t think there will be many cases, if any, with Enumerations containing more than 255 entries.

Best regards,
César Coelho


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Subject: Re: [Moims-sc] [CCSDS] Enumerations Optimization - UShort to UOctet

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Hi César,

can you tell us what is the objective of this change? As you surely knows, the existing encodings optimize the encoding space according to the maximum value of each enumeration.

By the way I just realize that the limit of an Enumeration is now aUShort, while it was a UInteger in MAL v1. What was the objective of this change?

Best regards,
Serge

Le 24/05/2023 à 14:26, Coelho, César via MOIMS-SC a écrit :
Sujet :
[Moims-sc] [CCSDS] Enumerations Optimization - UShort to UOctet

De :
Coelho, César via MOIMS-SC <moims-sc at mailman.ccsds.org><mailto:moims-sc at mailman.ccsds.org>

Date :
24/05/2023, 14:26


Pour :
"moims-sc at mailman.ccsds.org"<mailto:moims-sc at mailman.ccsds.org> <moims-sc at mailman.ccsds.org><mailto:moims-sc at mailman.ccsds.org>



Dear All,

I would like to propose one more optimization, this time in the Enumerations.
Currently, Enumerations are defined in the UShort range (0-65535) and I would like to change this to UOctet (0-255).
This looks like a very simple and straight-forward update. Still, let me know if you foresee any potential drawbacks.

If I receive no reply within the next 2 weeks, I will assume that you agree and I will update the book accordingly.

Best regards,
César Coelho


Dr. César Coelho
CGI Deutschland B.V. & Co. KG  | Space
Mornewegstr. 30 | 64293 Darmstadt | Germany
T: +49 173 54100 45 | email: cesar.coelho at cgi.com<mailto:cesar.coelho at cgi.com>

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