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- Path: sparky!uunet!pipex!warwick!str-ccsun!strath-cs!ALMAC!andrew.bain
- From: andrew.bain@almac.co.uk
- Newsgroups: comp.sources.wanted
- Subject: ext/exp memory
- Message-ID: <1992Aug18.688.489@ALMAC>
- Date: 18 Aug 92 21:31:39 GMT
- Distribution: comp
- Organization: ALMAC PC Board
- Lines: 30
-
- -> Does anyone know how to break through the 640Kb barrier ! I would
- -> like to know how to do this in ASM, C, or PAS. If anyone has written
- -> any code which can accomplish this PLEASE help me and mail me this
- -> code or tell me where I can get further information.
-
- Well, there are a number of libraries available to do this. A well known
- C library was called CXL. The name has now changed but if you want
- details ask. However you said you wanted to "break the 640K barrier".
- I assume by this you mean you want to be able to allocate more than 640K
- of RAM for use by your own program without any hassles. (Accessing
- extended or expanded memory involves swapping 64K chunks in and out of
- the memory,)
-
- I think, what you want is a DOS extender. Phar Lap make one and if you
- have a version of Borland C you can upgrade to the latest version and
- get the 286 version of this extender free. (Upgrade in UK was 69 quid
- I think but this offer ends soon.)
-
- Dos extenders let you use extended memory is if it were normal memory.
- I only know of C ones though.
-
- Hope this helps.
-
- andrew.bain@almac.co.uk
-
- P.S. I don't know of any available public domain source for such stuff
- in bulletin board land.
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