From:	"ClaudioF" <mpolve AT tin DOT it>
Newsgroups:	comp.os.msdos.djgpp
Subject:	memset etc.
Date:	Thu, 10 Aug 2000 13:12:55 +0200
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

Sorry I'm newbie. I've a little problem with a code I've ported from Watcom:
"General Protection Fault at eip=00002e95 etc. etc."

Here's the code. It writes with memset() to the video memory:

 #include <stdio.h>
#include <dos.h>

void Set_Text_Mode (void)
 {
  union REGS registers;

  registers.h.ah = 0x00;
  registers.h.al = 0x03;
  int386 (0x10, &registers, &registers);
 }

void Set_Vga_Mode (void)
 {
  union REGS registers;

  registers.h.ah = 0x00;
  registers.h.al = 0x13;
  int386 (0x10, &registers, &registers);
 }

void PutPixel (int x, int y, char color)
 {
  unsigned char *ScreenPointer;

  ScreenPointer = (unsigned char *) 0x0a0000;
  memset (ScreenPointer+(x + (y*320)), color, 1);              //  Here's
the problem. I can't resolve it
 }

void main (void)
 {
  Set_Vga_Mode ();
  PutPixel (160, 100, 150);
  getch();
  Set_Text_Mode ();
 }



Thanks at all.
ByeZ

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