# Pre13 L-D

The LZ4 two-byte little-endian offset now uses FreeBSD's unaligned-safe
`le16dec()` helper. Boundary checks, input advancement, zero/back-reference
validation, partial decoding, padding validation, and error returns are
unchanged.

An exhaustive 65,536-value comparison proved `ip[0] | (ip[1] << 8)` and
`le16dec(ip)` equivalent for every possible encoded offset. The final FreeBSD
KLD and LZ4 smoke gates remain required later; this phase does not run them.