Path: utzoo!attcan!sobmips!uunet!aplcen!samsung!cs.utexas.edu!asuvax!hrc!viking!campbellb
From: campbellb@viking.UUCP (Brian Campbell)
Newsgroups: comp.sys.apple
Subject: PRODOS Error $56
Keywords: PRODOS, MLI
Message-ID: <46df393d.f759@viking.UUCP>
Date: 16 Nov 89 14:51:14 GMT
Organization: gte
Lines: 11


>>Anyway, I keep getting ProDOS error $56.  This is not defined in

>In other words, the 'address of file buffer' in an OPEN, GET_BUF or SET_BUF
>MLI call is in conflict with the Systems Global Page memory bit map.

That's one possibility.  I have had first hand experience with another under PRODOS 8.
I received this error (pretty sure this one) when my file buffer address was
not page-aligned.  I was not sure whether it needed to be when I started playing
with PRODOS MLI calls.  Passing a page-aligned address (i.e. the low order
byte of the address is zero) corrected the problem.