D1_PTR_B         1464 src/dps8/dps8_cpu.h #define D1_PTR_B Dk_PTR_B [0]
D1_PTR_B          721 src/dps8/dps8_ins.c     putbits36_6  (& words[2], 18, cpu.du.D1_PTR_B);
D1_PTR_B          773 src/dps8/dps8_ins.c     cpu.du.D1_PTR_B = getbits36_6  (words[2], 18);