microblaze: Simplify logic for unaligned byte copying

	 * r4 - tempval

	 */

	beqid	r7, 0f /* zero size is not likely */

	andi	r3, r7, 0x3 /* filter add count */

	bneid	r3, bu /* if is odd value then byte copying */

	or	r3, r5, r6 /* find if is any to/from unaligned */

	andi	r3, r3, 0x3 /* mask unaligned */

	bneid	r3, bu1 /* it is unaligned -> then jump */

	or	r3, r3, r7 /* find if count is unaligned */

	andi	r3, r3, 0x3 /* mask last 3 bits */

	bneid	r3, bu1 /* if r3 is not zero then byte copying */

	or	r3, r0, r0

w1:	lw	r4, r6, r3 /* at least one 4 byte copy */

	.word	w2, 0f;

	.text

bu:	or	r3, r0, r0

bu1:	lbu	r4,r6,r3

bu2:	sb	r4,r5,r3

	addik	r7,r7,-1