CU_HIST_REG      4143 src/dps8/dps8_cpu.c     add_history (CU_HIST_REG, w0, w1);
CU_HIST_REG      4278 src/dps8/dps8_cpu.c     add_history (CU_HIST_REG, w0, w1);
CU_HIST_REG      4282 src/dps8/dps8_cpu.c     if (cpu.MR.hrhlt && cpu.history_cyclic[CU_HIST_REG] == 0)
CU_HIST_REG      7406 src/dps8/dps8_ins.c                       cpu.history[CU_HIST_REG]
CU_HIST_REG      7407 src/dps8/dps8_ins.c                                  [cpu.history_cyclic[CU_HIST_REG]][0];
CU_HIST_REG      7409 src/dps8/dps8_ins.c                       cpu.history[CU_HIST_REG]
CU_HIST_REG      7410 src/dps8/dps8_ins.c                                  [cpu.history_cyclic[CU_HIST_REG]][1];
CU_HIST_REG      7411 src/dps8/dps8_ins.c                     cpu.history_cyclic[CU_HIST_REG] =
CU_HIST_REG      7412 src/dps8/dps8_ins.c                       (cpu.history_cyclic[CU_HIST_REG] + 1) % N_MODEL_HIST_SIZE;