From: "nchuming" <nchuming AT magix DOT com DOT sg>
Newsgroups: comp.os.msdos.djgpp
Subject: Problem with following code
Date: Thu, 29 Apr 1999 22:33:48 +0800
Organization: Singapore Telecommunications Ltd
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Can anyone help me with the following piece of code,
it seems the program generates a fault...
Thanks a lot

void putpixel(int x,int y,unsigned char color)
{
  int vid_descriptor;

  vid_descriptor = __dpmi_segment_to_descriptor(0xa000);
 __asm__ __volatile__
 ("
   movw _vid_descriptor,%%es
   xorw %%di,%%di
   movw %1,%%ax
   imulw $320,%%ax
   addw %0,%%ax
   addw %%ax,%%di
   movb %2,%%al
   stosb
 "
 :
 : "g" (x), "g" (y), "g" (color)
 : "di","ax","memory"
 );
}