Path: utzoo!attcan!uunet!husc6!bloom-beacon!mit-eddie!ll-xn!ames!pasteur!ucbvax!RICHTER.MIT.EDU!krowitz
From: krowitz@RICHTER.MIT.EDU (David Krowitz)
Newsgroups: comp.sys.apollo
Subject: Maximum size in PBU2_$ALLOCATE_MAP?
Message-ID: <8805190249.AA01576@richter.mit.edu>
Date: 19 May 88 02:49:37 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 15

Can someone tell me what limits the maximum size you can ask for
with the PBU2_$ALLOCATE_MAP call? I seem to be able to get no more
than about 60,000 bytes (on a DN460/660) even though the size
parameter is a 4 byte integer. Is it limited by the Multibus
implementation on the DN460/660 series (which if I remember correctly
has a 16-bit PNA, whereas the DSP80/90 has an 18-bit PNA)?


 -- David Krowitz

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