call open_file

	mov %rax, %rdi
	call read_file

	mov %rax, %rdx
	call print_buf

	call exit

parse_args:
	pop %r13
	cmp $1,

ask_filename:
	mov $1, %rax
	mov $1, %rdi
	mov $ask, %rsi
	mov $asklen, %rdx
	syscall

	mov $0, %rax
	mov $0, %rdi
	mov $filename, %rsi
	mov $filenamelen, %rdx
	syscall

	mov $filename, %r15
	add %rax, %r15
	dec %r15
	movb $0, (%r15)
	mov $filename, %rdi

	jmp main

open_file:
	mov $2, %rax
	mov $0, %rsi
	syscall
	ret

read_file:
	mov $0, %rax
	mov $buffer, %rsi
	mov $bufferlen, %rdx
	syscall
	ret