accommodate 8 bits of crate
decode new uHTR format
skip fields missing from new trailer
unpack htr trailer
store iWordPayload0 in header
store iWordPayload0 in header; decode new amc13 header
initialize utca in header
re-order fields; comment; modify overview key
improve trailer handling; extend uhtr v0 header; implement amc13 block 0
decode trailer; warn more
adjust orn/bcn
document dump
dump words
dump words