=> 0xc874:	ldr	r3, [r5, #0]
   0xc876:	cbz	r3, 0xc87e
   0xc878:	ldr	r3, [r3, #0]
   0xc87a:	cmp	r3, r0
   0xc87c:	beq.n	0xc88a
   0xc87e:	mov	r1, r0
   0xc880:	mov	r0, r5
   0xc882:	blx	0xb798
   0xc886:	cmp	r0, #0
   0xc888:	beq.n	0xc850
   0xc88a:	blx	0xb308
   0xc88e:	mov	r1, r0
   0xc890:	mov	r0, r5
   0xc892:	blx	0xb33c
   0xc896:	blx	0xb534
   0xc89a:	mov	r1, r4