Path: utzoo!censor!geac!torsqnt!jarvis.csri.toronto.edu!mailrus!wuarchive!zaphod.mps.ohio-state.edu!mips!apple!agate!eos!woody
From: woody@eos.UUCP (Wayne Wood)
Newsgroups: comp.lang.pascal
Subject: thanks for the memories
Keywords: vga videoram direct read 64k barrier
Message-ID: <6430@eos.UUCP>
Date: 11 Mar 90 17:46:50 GMT
Organization: NASA Ames Research Center, California
Lines: 24



okay folks, i have two questions.

[1] i need to access memory outside the 64k segment my program uses
    at runtime.  in other words, i would like to be able to use ALL
    MEMORY if possible.  i have a large datastructure that requires
    the use of more than 64k.

[2] i need a method to reliably read the vga video memory by individual
    bitplanes.  i have been able to write directly tothe video memory
    but have not been able to reliably write to it.  any pointers?

i have a compag 386/25 with 5meg of memory.  source code examples in
pascal,c,or assembler would be greatly appreciated. i am using
borland languages for all three.

thanx in advance,


/***   woody   ****************************************************************
*** ...tongue tied and twisted, just an earth bound misfit, I...            ***
*** -- David Gilmour, Pink Floyd                                            ***
****** woody@eos.arc.nasa.gov *** my opinions, like my mind, are my own ******/