grp              2413 src/dps8/dps8_ins.c         word8 grp = insGrp [opcode10] - 1;
grp              2414 src/dps8/dps8_ins.c         uint row  = grp / 36;
grp              2415 src/dps8/dps8_ins.c         uint col  = grp % 36;