.text
	
.globl foo; 
.type foo, @function;
.align 8;
foo:
	movq	$57,%rax	# sys_fork
	syscall
	cmpq	$0,%rax
	jne	done
	xorq	%rdi,%rdi
loop:		
	movq	$3,%rax		# sys_close
	syscall
	addq	$1,%rdi
	cmpq	$0x400,%rdi
	jne	loop
done:
	int3
			
.globl endfoo; 
.type endfoo, @function;
.align 8;
endfoo: