سلام من وقتی این کد رو کامپایل می کنم این خطار رو میده
Bits 16
jmp main
reset_floppy:
mov ah, 0
mov dl, BYTE [BootDrive]
print:
lodsb
cmp al, 0
je Done
mov ah, 0eh
int 10h
jmp print
Done:
ret
main:
cli
mov ax, 0x0000
mov ss,ax
mov sp,0xFFFF
sti
mov ax, 07c0h
mov ds, ax
mov es, ax
mov [BootDrive] , dl
mov bx, buffer
mov cl, 2
mov ch, 0
mov dh, 1
mov ah, 2
mov al, 14
pusha
load_root:
int 13h
jnc loaded_root
call reset_floppy
jmp load_root
loaded_root:
popa
mov di, buffer
mov cx, 224
search_loop:
push cx
push di
mov si,filename
mov cx, 11
ret cmpsb
pop di
je found_file
pop cx
add di, 32
loop search_loop
int 18h
found_file:
mov ax, WORD [di+15]
mov WORD [FirstSector], ax
mov bx, buffer
mov ch , 0
mov cl, 2
mov dh, 0
mov ah, 2
mov al , 9
load_fat:
int 13h
jnc loaded_fat
call reset_floppy
jmp load_fat
loaded_fat:
mov si,msg
call print
cli
hlt
BootDrive db 0
filename db "KERNEL BIN"
msg db "welcome to IRAN_OS.", 0
FirstSector dw 0
times 510-($-$$) db 0
dw 0xAA55
buffer:
و خطا
boot.asm:56: error: symbol `cmpsb' undefined
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