From:	"Student, T.U.E." <YourName AT student DOT tue DOT nl>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Moving a screen buffer to the screen
Date:	Sat, 8 Jan 2000 14:08:01 +0100
Organization:	Eindhoven University of Technology, The Netherlands
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Prashant TR <prashant_tr AT yahoo DOT com> wrote in message
news:Pine DOT LNX DOT 4 DOT 10 DOT 10001072337450 DOT 691-100000 AT yahoo DOT com...
>
> On Fri, 7 Jan 2000, Wilmer van der Gaast wrote:
>
> > This might work:
> >
> > mov esi,src_ptr // Source pointer
> > mov edi,scr_ptr // Screen pointer
> > mov ecx,16000   // 320*200/4
> > cld             // Just to be sure it's the right direction
> > rep movsd       // Copy 4 bytes/dwords 16000 times
> >
> > The scr_ptr can't be 0xA0000, unless you use big_ds or so, maybe. I use
> > the map_linear_memory (?) call to map the screen buffer in the normal
> > address range that can be used with standard C pointers.
> >
> > (Haven't tested it)
>
> This won't work unless you change the DS and ES selectors to _dos_ds. And,
> of course, convert all this code to GAS.
>
> Prashant
>

Thank you all, it worked!

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