; For people who are trying to get started with developing a bootloader
; Assemble with nasm

org 0x7C00
bits 16

start:  mov si, message         ; Put addr of 'message' into si
        mov ah, 0x0E            ; 16-bit interrupt for printing
        mov bx, 0x0000          ; Ensure page and color (not used in text modes) are 0
.loop:  lodsb                   ; Load byte at si into al and increment si
        or al, al               ; al | al
        jz .exit                ; If al == 0, the zero flag is set, and string ended
        int 10h                 ; Print char
        jmp .loop               ; Repeat
.exit:  hlt                     ; If you can, halt
        jmp .exit               ; If not, loop forever
msg:    db `Hello World`,0      ; Message

times 510 - ($ - $$) db 0
dw 0xAA55