In memory

gistfile1.asm

%define newline 0xA

section .data
	hello db "Hello", newline
	helloLen equ $ - hello

section .text
	global start

readFile:
	; Read system call
	mov rax, 0x2000003
	; Check if input else go to exit
	; If input save to memory and go to print

start:
	; http://stackoverflow.com/questions/234906/whats-the-purpose-of-the-nop-opcode
	nop
	; Call readFile instructions block
	call readFile
	; move our first char pointer to rsi
	mov rsi, qword hello

printHello:
	; compare byte of pointer against 0xA
	cmp byte[rsi], 0xA
	; if true jump to exit
	je exit
	; call sys_write
	mov rax, 0x2000004
	; on fd 1 for out
	mov rdi, 1
	; for one char length
	mov rdx, 1
	; system call
	syscall
	; incr rsi pointer we don't need a counter
	inc rsi
	; jpm to function
	jmp printHello

exit:
	; call exit
	mov rax, 0x2000001
	; with system status 0
	mov rdi, 0
	; call system
	syscall