Date   : Fri, 25 Feb 2005 22:43:20 +0000
From   : jgh@... (Jonathan Graham Harston)
Subject: ADFS OSWord &72 control block byte zero

Does anybody know what the byte at XY+0 indicates in OSWord &72?
The documents say that when calling OSWord &72 it should be set to
zero, and the result is returned there, and all programs I've
examined do that. However, within the ADFS ROM all calls, except
'PARK', set that byte to &01 before calling the code that OSWord
&72 calls.
 
This indicates that OSWord &72 expects XY+0 set to &00 or &01 to
indicate something - but what?
 
I've been thinking of "appropriating" that byte to allow calling
OSWord &72 with raw IDE commands.
 
-- 
J.G.Harston - jgh@...                - mdfs.net/User/JGH
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