simple_kernel.asm

mov ax, cs
mov ds, ax

mov si, hello_string
call print_string

jmp $

print_string: 
    mov ah, 0Eh 

print_char: 
    lodsb

    cmp al, 0
    je done 
    
    int 10h

    jmp print_char

done:
    ret

hello_string db 'Hello World!, From Simple Assembly Kernel!', 0