Bootloader Stage 2 (still in progress)

After stage 1, I continue with stage 2, which will extend the memory limit, so the os can handle more complex tasks.

What Happened?

Surprisingly, I don’t know why it has an error.

disk_address_packet:
    db 0x10
    db 0
    dw 1
    dw 0x8000
    dw 0x0000
    dq 1

disk_error:
    mov si, disk_error_message
    call print_loop
    jmp hang
    ret

“disk_address_packet” and “disk_error” labels are to allow you to understand my screenshots more easily.