else:
decode_16bit_nonimmed_mode(insn)
-From this point onwards each of the decode_* functions perform straightforward combinatorial decoding of the 16 bits of "insn".
+From this point onwards each of the decode_* functions perform straightforward combinatorial decoding of the 16 bits of "insn". In sone cases this involves further analysis of bit 1, in some cases (Cmaj.m = 0b010.1) even further deep-dive decoding is required (CR ops). *All* of it is entirely combinatorial and at **no time** involves changing of, or interaction with, or disruption of, the Phase 1 determination of Length+Mode (that has *already taken place* in an earlier decoding pipeline time-schedule)
## Demo of encoding that's backward-compatible with PowerISA v3.1 in both LE and BE mode