Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!mit-eddie!bloom-beacon!apple!oliveb!amiga!cbmvax!adam
From: adam@cbmvax.UUCP (Adam Levin CATS)
Newsgroups: comp.sys.amiga
Subject: Re: Software vs 1M CHIP RAM
Summary: MEMF_FAST
Message-ID: <6721@cbmvax.UUCP>
Date: 1 May 89 15:42:03 GMT
References: <781@manta.NOSC.MIL> <1fsJ489nAw1010C8s.w@amdahl.uts.amdahl.com> <526@laic.UUCP>
Reply-To: adam@cbmvax.UUCP (Adam Levin CATS)
Organization: Commodore Technology, West Chester, PA
Lines: 27

In article <526@laic.UUCP> darin@nova.UUCP (Darin Johnson) writes:
>In article <1fsJ489nAw1010C8s.w@amdahl.uts.amdahl.com> dwl10@amdahl.uts.amdahl.com (Dave Lowrey) writes:
>>In article <781@manta.NOSC.MIL> dwi@manta.nosc.mil.UUCP (Steve Stamper) writes:
>>>For anyone who cares, I am posting a list of software titles
>>>which WILL NOT run on a 1M Agnus Machine (rev 6 Motherboard).
>
>Hmmn.  Just how does a program go about making itself NOT work with
>1M chip memory?  The only thing I can think of is if the program
>checks to see if allocated memory is really chip memory by looking at
>the address; but of course no-one would break such a taboo :-)
>Any other methods?  Just curious.
>
>Darin Johnson (leadsv!laic!darin@pyramid.pyramid.com)
>	We now return you to your regularly scheduled program.

If a program allocates memory via AllocMem or AllocRemember and specifically
asks for MEMF_FAST, the call will fail if the user has a 1 Meg. CHIP machine
(and no additional memory).  If you don't specify one of either MEMF_CHIP
or MEMF_FAST in your allocation call, the system will try to get FAST memory
first and then will try for CHIP RAM.  So, unless you _really_ want one of
FAST or CHIP, don't specify either.


-- 
     Adam Keith Levin  --  CATS   Commodore-Amiga Technical Support
     1200 Wilson Drive / West Chester, PA  19380     (215) 431-9180
     BIX: aklevin        UUCP: ...{amiga|rutgers|uunet}!cbmvax!adam