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- Newsgroups: comp.dsp
- From: tchannon@black.demon.co.uk (Tim Channon)
- Path: sparky!uunet!pipex!demon!black!tchannon
- Subject: Adress of memory beyond 1M on PC
- Distribution: world
- References: <1992Jul22.163525.3983@mpifr-bonn.mpg.de>
- Organization: null
- Lines: 24
- Date: Thu, 23 Jul 1992 00:43:00 +0000
- Message-ID: <711852180snx@black.demon.co.uk>
- Sender: usenet@gate.demon.co.uk
-
- > > We have a TANG IBM/PC 386 which has 4M of memory. Normally the adress
- > >of memory in the PC consists of a segment plus an offset, say, ****:****.
- > >1M is the limitation. My question is how can I access the memory beyond 1M?
- > >In other words, is there an adress of the memory beyond 1M in the PC?
- >
- As a slight side issue -- and this is rumour, no doubt unreliable but
- interesting just the same.
-
- I have heard reported some strange findings when the MicroSoft SmartDrv disk
- cache program is loaded, the version that is supplied with Window 3.1
-
- It appears that this program does things to the processor configuration
- registers so that _all_ the processor memory is accessible via the ES
- segment.
- It was found that segment wrapping did not occur.
-
- ----
- MicroSoft can supply the XMS specification and demonstration programs on disk
- to do with various standard memory accessing schemes. The disk here is
- labelled 'XMS Specification and Drivers, Version 2.0'
-
- TC.
- E-mail: tchannon@black.demon.co.uk or tchannon@cix.compulink.co.uk
-
-