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Mail Archives: djgpp/1998/03/25/18:57:11

From: Gautier DOT DeMontmollin AT maths DOT unine DOT ch (Gautier)
Newsgroups: comp.os.msdos.djgpp
Subject: SVGA line/copy/swap in ASM
Message-ID: <1998Mar25.190358.6650@news>
Date: 25 Mar 98 19:03:58 MET
Reply-To: Remove_this DOT Gautier DOT deMontmollin AT maths DOT unine DOT ch
Organization: University of Neuchatel, Switzerland
Lines: 22
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

I'm looking for code in assembler (GNAT/DJGPP format) to 

1) Draw a line in a memory area (linear addressing, 1 byte per pixel)

2) Copy a buffer from a memory area to VESA video memory
   with VESA 1.2 bank switching or using VESA 2.0 frame buffer
   ( Is it faster when 2.0 is emulated ? How to get the address
   of frame buffer ? )

3) Swap the display between 2 video memory areas without moving images
   ( Is it possible ? Is there a reliable method to determine whether
   swapping is supported and has enough video memory ? )

Thanks in advance for bits of information or useful URL's !

-- 
Gautier

--------
Homepage: http://www.unine.ch/math/Personnel/Assistants/Gautier/Montmollin.html
Software: http://www.unine.ch/math/Personnel/Assistants/Gautier/Gaut_FTP.htm

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