GRP_ENM          1559 src/dps8/dps8_opcodetable.c        GRP_EANM,  GRP_UNKN,  GRP_UNKN,  GRP_UNKN,  GRP_ENM,   GRP_UNKN,  GRP_UNKN,  GRP_UNKN,  // 020-027
GRP_ENM          1581 src/dps8/dps8_opcodetable.c        GRP_ENM,   GRP_EDC,   GRP_UNKN,  GRP_ENC,   GRP_UNKN,  GRP_EDC,   GRP_UNKN,  GRP_UNKN,  // 300-307