$ fq -d asn1_ber dv tc1.ber
   |00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|.{}: tc1.ber (asn1_ber) 0x0-0xd (13)
0x0|9f                                             |.               |  class: "context" (2) 0x0-0x0.2 (0.2)
0x0|9f                                             |.               |  form: "primitive" (0) 0x0.2-0x0.3 (0.1)
0x0|9f ff ff ff ff ff ff ff ff ff 7f               |...........     |  tag: 18446744073709551615 0x0.3-0xb (10.5)
0x0|                                 01            |           .    |  length: 1 0xb-0xc (1)
0x0|                                    40|        |            @|  |  value: raw bits 0xc-0xd (1)