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org 0x7c00 ; boot sector
entry:
; now loading from disk
mov cx, 3 ; retry count
mov ax, 0x0000
mov ds, ax
mov ax, 0x9050
mov es, ax ; set es, the destination
mov bx, 0
loaddisk:
mov si, cx
mov ah, 0x02 ; function: read disk sectors
mov al, 16 ; sector count
mov dh, 0 ; head
mov dl, 0 ; drive number
mov ch, 0 ; track
mov cl, 2 ; sector offset
int 0x13
jnc loadok
mov bl, al
call putcharhex
mov cx, si
loop loaddisk
; load failed
mov ah, 0x0e
mov al, 'X'
int 0x10
jmp $
; load OK
loadok:
mov ah, 0x0e
mov al, 'P'
int 0x10
mov al, 'R'
int 0x10
mov al, 'E'
int 0x10
mov al, 'Y'
int 0x10
mov al, 'O'
int 0x10
mov al, 'T'
int 0x10
mov ax, 0x9050
mov ds, ax
mov es, ax
mov ss, ax
db 0xEA
dd 0x90500000
%include "basic.s"
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