From:	"Alexei A. Frounze" <alex DOT fru AT mtu-net DOT ru>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Inline ASM
Date:	Fri, 24 Mar 2000 08:18:31 +0300
Organization:	MTU-Intel ISP
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Message-ID:	<38DAFAA7.CC352387@mtu-net.ru>
References:	<38daf59d AT news DOT integrityonline DOT com>
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Something like this:
--------------8<------------------
void putpixel (long x, long y, char color) {
  if (VGAAddr)
    *(VGAAddr+x+y2addr(y)) = color;
  else {
    __asm__ __volatile__ ("
      pushw   %%es
      movw    %3, %%ax
      movw    %%ax, %%es
      movl    %1, %%edi
      shl     $6, %%edi
      movl    %%edi, %%eax
      shl     $2, %%eax
      addl    %%eax, %%edi
      addl    %0, %%edi
      movb    %2, %%al
      stosb
      popw    %%es"
      :
      : "g" (x), "g" (y), "g" (color), "g" (VGA_sel)
    );
  };
}
--------------8<------------------

Better find and read the FAQ it's somewhere on the web:
http://www.delorie.com/dgjpp/doc/
http://www.rt66.com/~brennan/djgpp/bgtia.html
http://sag-www.ssl.berkeley.edu/~korpela/djgpp_asm.html
www.castle.net/~avly/djgpp.html

Good Luck

bobbi AT integrityonline DOT com wrote:
> 
> How do you do inline assembly code with DJGPP?
> -Scott

-- 
Alexei A. Frounze

- Raw text -