Dear Mr.Oliver,

I have read your book.

In the case of Unconstrained whole number encoding, it will be encoded in
2's complement form, immaterial of the number (whether it is positive or
negative). Is it correct?
Still I have this doubt after reading the book.

Thanks a lot,

regards,
Murali.

DUBUISSON Olivier wrote:

> Murali wrote:
> >
> > Hi All,
> >
> > I am having doubts on PER encoding. Please help in clearing the
> > issues.
> >
> > *Encoding of Normally small non negative whole number
> > 10.6.2 lause of X691 says that "if n >= 64 .....". But what is the
> > maximum value it can take? If it is less than or equal to 255, why do
> > we need to appended a length?
> >
> > *I believe that only negative number has to be 2's complemented.
> > Please tell me yes or no.
> >
> > *Encoding of a constrained whole number
> > In aligned variant,
> > if 2<= range <=255, the number is encoded in upper bound(log2range)
> > bits.
> > Consider, the range (1..8). 4 bits are needed for the representation.
> > If the number to be encoded is 1, its equivalent encoding is 0001.
> > Please let me know what I have interpreted is right?
> >
> >
> > I will keep posting encoding queries. Kindly clarify those doubts.
>
> You should find answers in my book that you can freely download from
> OSS Nokalva's web site at:
> http://www.oss.com/asn1/dubuisson.html
> --
> Olivier DUBUISSON
> france telecom R&D
>
> DTL/TAL - 22307 Lannion Cedex - France
> t: +33 2 96 05 38 50 - f: +33 2 96 05 39 45 - http://asn1.elibel.tm.fr/

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