Now only attiny core is supported. No jmp, call, mul instructions. Ijmp and icall is not calculated too.

Example tick calculation from avr-objdump output

start addres = 1148
<__vector_2>:
 47c:	78 94       	sei	;;[1]
 47e:	1f 92       	push	r1	;;[3]
 480:	0f 92       	push	r0	;;[5]
 482:	0f b6       	in	r0, 0x3f	; 63	;;[6]
 484:	0f 92       	push	r0	;;[8]
 486:	11 24       	eor	r1, r1	;;[9]
 488:	8f 93       	push	r24	;;[11]
 48a:	9f 93       	push	r25	;;[13]
 48c:	af 93       	push	r26	;;[15]
 48e:	bf 93       	push	r27	;;[17]
 490:	88 9a       	sbi	0x11, 0	; 17	;;[19]
BRANCH: 492
--------- true 492
 492:	57 fc       	sbrc	r5, 7	;;[21]
BRANCH: 496
--------- true 496
 496:	51 10       	cpse	r5, r1	;;[23]
BRANCH: 49a
--------- true 49a
 49a:	b4 9b       	sbis	0x16, 4	; 22	;;[25]
 49e:	84 e0       	ldi	r24, 0x04	; 4	;;[26]
 4a0:	78 2e       	mov	r7, r24	;;[27]
 4a2:	24 c0       	rjmp	.+72     	; 0x4ec <__vector_2+0x70>	;;[29]
 4ec:	82 ee       	ldi	r24, 0xE2	; 226	;;[30]
 4ee:	58 2e       	mov	r5, r24	;;[31]
 4f0:	19 c0       	rjmp	.+50     	; 0x524 <__vector_2+0xa8>	;;[33]
 524:	bf 91       	pop	r27	;;[35]
 526:	af 91       	pop	r26	;;[37]
 528:	9f 91       	pop	r25	;;[39]
 52a:	8f 91       	pop	r24	;;[41]
 52c:	0f 90       	pop	r0	;;[43]
 52e:	0f be       	out	0x3f, r0	; 63	;;[44]
 530:	0f 90       	pop	r0	;;[46]
 532:	1f 90       	pop	r1	;;[48]
 534:	18 95       	reti	;;[52]
.
.
.

This output is generated by running: avr-tick.sh example.objdump 47c (47c is start address of procedure)

Full output download