[PATCH v2 6/8] score: Add AArch64 port

[Sebastian Huber]

On 28/09/2020 17:24, Kinsey Moore wrote:

> +/* TODO(kmoore) The current implementation here assumes that SP is not misaligned */
Maybe add a ticket for this TODO and reference it in the comment.
> +	.macro	JUMP_HANDLER
> +	mov x0, #0x7f			/* mask to use in BIC, lower 7 bits */
> +	bic x0,	lr,	x0		/* lr contains PC, mask off to the base of the current vector */
> +	ldr x0,	[x0,	#0x78]		/* load address from the last word in the vector */
> +	blr x0				/* branch and link to address in x0, no reason to save current LR since it has already been saved and current contents are junk */
> +	ldp x0,	lr,	[sp],	#16	/* pop x0,lr from stack */
> +	eret				/* return from exception */
Some lines are longer than 79 characters. I spotted also // comments. I 
have nothing against // comments in general, but before we introduce 
them, it would be good to update the coding style.