Re: Using video memory with djgpp

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Article #46644

#46644

From: "John Burton"
Date: Sun, 30 Oct 1994 16:17

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> Randy Zack (randy@field.acucobol.com) wrote:
> > was wondering if there is any way to access video memory.  I
> It is mapped somewhere to 0xE0000000 (at least on ET4000 chipsets
> you get 1MB linear VidMem).
> Read the DOCs btw, they should tell you more about if your chipset > is 
supported also.

Use the _go32_conventional_memory_sel function (something like that 
anyway) to get a selector to the first Meg of physical memory and then 
use the functions in sys/farptr.h to access the memory. Or code your own 
in assembly language. Easy and it works under windows(dpmi) which the 
first method does not.

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From: jburton@cix.compulink.co.uk ("John Burton")
Subject: Re: Using video memory with djgpp
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Date: Sun, 30 Oct 1994 16:17:55 GMT
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