	.section	.text
	.global	get
	.type	get, %function
get:
	push	{r7, lr}
	sub	sp, sp, #8
	mov	r2, #1		@ A length of one
	add	r1, sp, #4	@ Address of ch
	mov	r7, #3		@ Read system call
	svc	#0
	cmp	r0, #0
	bge	return_ch
	b	end
return_ch:
	ldr	r0, [sp, #4]
end:
	add	sp, sp, #8
	pop	{r7, pc}
