global writef

section .text
writef:
	push	rbp
	mov	rbp,rsp
	push	rbx
	push	rcx
	push	rdx
	push	rsi

	mov	rax, 5
	mov	rbx, [rbp+24] 
	mov	rcx, 1 
	mov 	rdx, 600 
	int	0x80

	test	rax, rax
	js	error

	; ===========================

	; int z = fopen("out", "wb");
	; fwrite(z,a);

	; ===========================

	mov	rbx,rax;rax	; fd
	mov	rax,4		; sys_write
	mov	rcx,[rbp+16]	; buffer 
	mov	rdx,4
	int	0x80

	; ===========================

	mov	rax, 0
	jmp	end
error:	mov	rax, 1
end:	pop	rsi
	pop	rdx
	pop	rcx
	pop	rbx
	pop	rbp
	ret	16