boot/x86/print.s

   1 ; cs:si - pointer to ASCIIZ string
   2 print
   3         pushf
   4         push ax
   5         push bx
   6         push si
   7         xor bh, bh
   8         mov ah, 0Eh
   9
  10 .loop
  11         mov al, [cs:si]
  12         cmp al, 0
  13         je .done
  14         int 10h
  15         inc si
  16         jmp .loop
  17
  18 .done
  19         mov al, 0Dh
  20         int 10h
  21         mov al, 0Ah
  22         int 10h
  23         pop si
  24         pop bx
  25         pop ax
  26         popf
  27         ret