; COM program displaying hello world string
; This is primarily for testing purposes
org 0x0100

main:
  mov si, string
  mov ah, 0x0e
  xor bx, bx
.loop:
  lodsb
  test al, al
  jz .end
  int 0x10
  jmp .loop
.end:
  ret

string:
  db "Hello world!", 0x0A, 0x0D, 0