use64
global main

extern scanf
extern printf
extern puts

section text

scanf_integer:
	push rbp
	mov rbp, rsp
	sub rsp, 8
	lea rax, [rbp - 8]
	mov rsi, rax
	mov rdi, read_fmt
	xor rax, rax
	call scanf
	mov rax, [rbp - 8]
	leave
	ret
	
main:
	push rbp
	mov rbp, rsp
	
	sub rsp, 16
	xor rax, rax
	mov [rbp - 8], rax
	
	mov rdi, input_text
	call printf
	
	call scanf_integer
	mov [rbp - 16], rax
	
	%macro iteration 0
		call scanf_integer
		mov rdx, [rbp - 16]
		cmp rax, rdx
		jg %%.continue
		mov rbx, [rbp - 8]
		inc rbx
		mov [rbp - 8], rbx
		%%.continue:
	%endmacro
	
	%rep 5
		iteration
	%endrep
	
	mov rbx, [rbp - 8]
	mov rdi, write_fmt
	mov rsi, rbx
	call printf	
	
	xor rax, rax
	leave
	ret
	
	
section data
    input_text  db "G = ", 0x00
    read_fmt 	db "%lld", 0x00
    write_fmt   db "Result = %lld", 0x0A, 0x00