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Re: PUN_INFO pun field ...

To: mint-request@terminator.rs.itd.umich.edu (Stephen Henson)
Subject: Re: PUN_INFO pun field ...
From: Julian Reschke <reschke@GOEDEL.UNI-MUENSTER.DE>
Date: Wed, 30 Jun 93 11:46:55 MET DST
Cc: mint@terminator.rs.itd.umich.edu (MiNT-Liste)
In-reply-to: <9306292323.AA18488@nyx.cs.du.edu>; from "Stephen Henson" at Jun 29, 93 5:23 pm
Organization: Westfaelische Wilhelms-Universitaet, Muenster, Germany Department of Mathematics

> 
> Just a quick question before I get pl5 out: how many bits of the pun field
> correspond to valid device numbers for physical mode Rwabs ? I know bits 0-2
> are used and now I've heard 3 is set for TT SCSI bus. I presume a couple more
> are used for Falcon IDE.
> 	The XHDI docs seem to suggest that device numbers 0-63 are possible
> so I'll mask bits 0-5 if I don't hear otherwise. No doubt ICD does something
> different :-(
> Steve.
> 

Sadly, Atari never updated the original documentation.

However... (from memory):

Bit 7: partition invalid

Bit 4: IDE drive (Atari only supports #16, we have #17, too).
Bit 3: SCSI drive

So for now, you should probably use bits 0..4.

-- 
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Julian F. Reschke, Hensenstr. 142, D-48161 Muenster
 eMail: reschke@math.uni-muenster.de jr@ms.maus.de
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References:
- PUN_INFO pun field ...
  - From: shenson@nyx.cs.du.edu (Stephen Henson)

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