func

;with ebx instead of edx works correctly
section .data
fmt: db "%d", 0
zero: dd 0
two: dd 2
ten: dd 10
seven: dd 7
three: dd 3

section .bss
x: resd 1
t: resd 1

section .text
extern _scanf
extern _printf
global _lab1
global _lab2
global _lab3
global _main

_main:
push x
push fmt
call _scanf
add esp, 8
mov eax, [x]
cmp eax, [zero]
jl _lab1
mul dword [x]
mul dword [two]
mov [t], eax
mov eax, [x]
mul dword [three]
sub [t], eax
mov eax, [ten]
add [t], eax
mov eax, [t]
jmp _lab2

_lab1:
mul dword [x]
mul dword [x]
sub eax, [seven]

_lab2:
mov [x], eax
push dword [x]
push fmt
call _printf
add esp, 8
xor eax, eax
xor ecx, ecx
xor edx, edx
ret