Using Turbo C with Inline Assembly

mode13.c

#include <conio.h>
#include <stdio.h>

int main()
{
  unsigned char i;
  int j;
  asm mov ah, 0x00;
  asm mov al, 0x13;
  asm int 0x10;

  asm push ds;
  asm mov dx,0xa000;
  asm mov ds,dx;
  asm xor dx,dx;
  for(i=0;i<200;i++) {
     asm mov ax,dx;
     for(j=0;j<160;j++) {
       asm mov bx,ax;
       asm mov cl, i;
       asm mov ch, i;
       asm mov word ptr [bx], cx;
       asm inc ax;
       asm inc ax;
     }
     asm add dx,320;
  }
  asm pop ds;
  getch();

  asm mov ah, 0x00;
  asm mov al, 0x03;
  asm int 0x10;

  return 0;
}