[BITS 16]
[ORG 0x7C00]
top:
    ;; Put 0 into ds (data segment)
    ;; Can't do it directly
    mov ax,0x0000
    mov ds,ax
    ;; si is the location relative to the data segment of the
    ;; string/char to display


    mov si, eightSquareDots ;Moves the eightSquareDots string into the system input and continues to rear one character at a time into the buffer until it encounters a null cahracter
                ;which will indicate the the string has ended at which point the next string will be printed in the same way.
    call writeString
    mov si, eightSquareDots
    call writeString
    mov si, eightSquareDots
    call writeString
    mov si, eightSquareDots
    call writeString
    mov si, eightSquareDots
    call writeString
    mov si, eightSquareDots
    call writeString
    mov si, eightSquareDots
    call writeString
    mov si, eightSquareDots
    call writeString

    mov si, studentName    ;studentName variable
    call writeString ; the writeString function prints the variable to the terminal.
    mov si, studentCourse ;studentCourse variable
    call writeString ; Performs the same action as above
    mov si, favouriteMovie ;favouriteMovie variable
    call writeString ; Performs the same action as above
    jmp $ ; Spin
writeString:
    mov ah,0x0E ; Display a chacter (as before)
    mov bh,0x00
    mov bl,0x07
nextchar:
    Lodsb ; Loads [SI] into AL and increases SI by one
    ;; Effectively "pumps" the string through AL
    cmp al,0 ; End of the string?
    jz done
    int 0x10 ; BIOS interrupt
    jmp nextchar
done:
    ret
    ;Tis section of code contains the variables used to print text on the screen.
    studentName db 'Name:  Martin Vasilev' ,13,10,0 ;Null - terminated
    studentCourse db 'Course: Computer Science' ,13,10,0 ;Null -terminated
    favouriteMovie db 'Favourite Movie: Ex Machina' ,13,10,0 ;Null -terminated
    eightSquareDots db '........' ,13,10,0 ;Null - terminated
    times 510-($-$$) db 0
    dw 0xAA55