GRP_FLM          1523 src/dps8/dps8_opcodetable.c        GRP_UNKN,  GRP_FLM,   GRP_UNKN,  GRP_FLM,   GRP_UNKN,  GRP_FLC,   GRP_UNKN,  GRP_FLC,   // 420-427
GRP_FLM          1527 src/dps8/dps8_opcodetable.c        GRP_UNKN,  GRP_FLM,   GRP_UNKN,  GRP_FLM,   GRP_UNKN,  GRP_UNKN,  GRP_UNKN,  GRP_UNKN,  // 460-467