diff --git a/main.asm b/main.asm
index 40ad2d8..e6fb94d 100644
--- a/main.asm
+++ b/main.asm
@@ -40,14 +40,24 @@ _exit:
   db "Halted: Waiting for poweroff...", 0
 
 main:
-  call dumpreg
   mov ax,cs
   mov ds,ax
-  mov si, string_halt
-  call kprintf
-.loop:
-  hlt
-  jmp .loop
+
+  sub sp, 0x30
+
+  xor ax,ax
+  mov es,ax
+  mov ax,_int_2F
+  xchg ax,[es:0x2F*4]
+  mov ax,cs
+  xchg ax,[es:0x2F*4+2]
+  int 0x2F
+  test ax, 0xFF
+  int 0x2F
+
+  add sp, 0x30
+
+  ret
 
 %include "dumpreg.asm"
 %include "kprintf.asm"