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static void outb();
static void main();
 
#asm
 
use16 386
 
.text
 
.org 0xfff0
 
jmp 0xf000:start_code
 
#endasm
 
#asm
.text
 
.org 0x0000
 
start_code:
 
mov ax, #0xf000
mov ds, ax
mov es, ax
mov fs, ax
mov gs, ax
mov ss, ax
 
mov esp, #0xffec
 
call _main
 
end_label:
jmp end_label
 
.data
.org 0xF000
 
 
#endasm
 
 
typedef unsigned char  Bit8u;
typedef unsigned short Bit16u;
typedef unsigned short bx_bool;
typedef unsigned long  Bit32u;
 
  void
  main()
{
    char *txt = "Hello world !";
    int i = 0;
 
    while(txt[i] != 0) {
        outb(0x8888, txt[i]);
        i++;
    }
}
 
  void
outb(port, val)
  Bit16u port;
  Bit8u  val;
{
#asm
  push bp
  mov  bp, sp
 
    push ax
    push dx
    mov  dx, 4[bp]
    mov  al, 6[bp]
    out  dx, al
    pop  dx
    pop  ax
 
  pop  bp
#endasm
}