is_4             1382 src/dps8/dps8_eis.c               cpu.ou.opsz = is_4 >> 12;
is_4              903 src/dps8/dps8_opcodetable.c     {"a4bd",   IGN_B29 | NO_RPT,                          ONLY_AU_QU_AL_QL_XN, 0, is_4},
is_4              920 src/dps8/dps8_opcodetable.c     {"s4bd",   IGN_B29 | NO_RPT,                          ONLY_AU_QU_AL_QL_XN, 0, is_4},