Message-ID:	<35F3A997.9D2EAF64@geocities.com>
From:	Merlin <merlin__ AT geocities DOT com>
MIME-Version:	1.0
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: vga
References:	<6suf6t$7mt$1 AT front6 DOT grolier DOT fr>
Lines:	58
Date:	Mon, 07 Sep 1998 09:38:20 GMT
NNTP-Posting-Host:	231-cy-wpg.ilos.net
NNTP-Posting-Date:	Mon, 07 Sep 1998 04:38:20 CDT
Organization:	MBnet Networking Inc.
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

conrad wrote:

> glopglop
>
> does anyone know how to switch to vga mode with djgpp ?
> :o)
>

void mode(int mode){
 union REGS regs;  //__dpmi_regs could have been used here..
 regs.x.ax=mode;
int86(0x10,&regs,&regs);  //and __dpmi_int(,) could have been used
here...
}

I think it's actually safer to use __dpmi_int() but i don't think it
matters in this case..
That will change to the given screen mode..

> and how can I use asm {} ?

using __asm__ ();for example this will put colour values into the color
registers to change the colour zero in inline asm.. __asm__
__volatile__("
      movw $0x3c8,%%dx\n
      movb  $0,%%al\n
      outb    %%al,%%dx\n
      inc      %%dx\n
      movb  %0,%%al\n
      outb    %%al,%%dx\n
      movb  %1,%%al\n
      outb    %%al,%%dx\n
      movb  %2,%%al\n
      outb    %%al,%%dx"
      :
      :"g"(red),"g"(grn),"g"(blue)
      :"ax","dx","memory");

damn proportional fonts...
you may have noticed the at&t syntax...
I suppose this probably won't help you much...but still it might so i
posted it...
confused? I think there's a link to a tutor like site on the djggp
site....inverse reality or something..


L8r,
  Merlin.

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