ARK-OS/arkos/boot/source/bootloader.asm

[BITS 16]
[ORG 0x7C00]

start:
    ; Set up segments
    xor ax, ax
    mov ds, ax
    mov es, ax
    mov ss, ax
    mov sp, 0x7C00

    ; Clear screen
    mov ah, 0x00
    mov al, 0x03
    int 0x10

    ; Print startup messages
    mov si, msg_start
    call print_string

    mov si, msg_key
    call print_string
    call delay

    mov si, msg_drm
    call print_string
    call delay

    mov si, msg_kernel
    call print_string
    call delay
    call delay

halt:
    hlt
    jmp halt

; --- Functions ---
print_string:
    mov ah, 0x0E ; Teletype output
.loop:
    lodsb
    or al, al
    jz .done
    int 0x10
    jmp .loop
.done:
    ret

delay:
    ; Simple delay loop
    mov cx, 0x0F
.outer:
    mov dx, 0xFFFF
.inner:
    dec dx
    jnz .inner
    loop .outer
    ret

; --- Data ---
msg_start:  db "Welcome to ArkOS Bootloader", 13, 10, 0
msg_key:    db "Checking Hardware Secure Key... OK", 13, 10, 0
msg_drm:    db "Loading DRM Module... OK", 13, 10, 0
msg_kernel: db "Loading Kernel & Launching OS...", 13, 10, 0

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