dataMode         1861 src/dps8/dps8_cpu.h     word7 dataMode; // 0100  9 bit
dataMode         1373 src/dps8/dps8_eis.c               cpu.dataMode = 0102; // 9 bit an
dataMode         1377 src/dps8/dps8_eis.c               cpu.dataMode = 0042; // 6 bit an
dataMode         1381 src/dps8/dps8_eis.c               cpu.dataMode = 0022; // 4 bit an
dataMode         1697 src/dps8/dps8_eis.c           cpu.dataMode = 0021; // 4 bit numeric
dataMode         1699 src/dps8/dps8_eis.c           cpu.dataMode = 0101; // 9 bit numeric
dataMode         1840 src/dps8/dps8_eis.c       cpu.dataMode = 0010; // 1 bit not alpha, not alpha numeric