dataMode         1864 src/dps8/dps8_cpu.h     word7 dataMode; // 0100  9 bit
dataMode         1372 src/dps8/dps8_eis.c               cpu.dataMode = 0102; // 9 bit an
dataMode         1376 src/dps8/dps8_eis.c               cpu.dataMode = 0042; // 6 bit an
dataMode         1380 src/dps8/dps8_eis.c               cpu.dataMode = 0022; // 4 bit an
dataMode         1696 src/dps8/dps8_eis.c           cpu.dataMode = 0021; // 4 bit numeric
dataMode         1698 src/dps8/dps8_eis.c           cpu.dataMode = 0101; // 9 bit numeric
dataMode         1839 src/dps8/dps8_eis.c       cpu.dataMode = 0010; // 1 bit not alpha, not alpha numeric