SAVE_DATA / RESTORE_POINTERS message confusion

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Hi all,

looking at tmscsim (again) I cannot persuade myself that the handling of 
the RESTORE_POINTERS command is correct... Therefore a couple of 
questions:

1. do any devices at all use this message-pair?

2. are they ever sent apart from when accompanying the DISCONNECT / 
RESELECT?

3. if "yes" to 2 - can the RESTORE be used to "rewind" the pointer to a 
value smaller than the current?

4. Some LLDs just pretty much ignore the message. Thereby, AFAIU, they 
just assume that this is just a part of the RESELECT procedure and that 
they already have the proper context. Is it sufficient?

>From which I'm trying to derive whether the handling in tmscsim is 
correct, and, if not, how to correct it...

Thanks
Guennadi
---
Guennadi Liakhovetski
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