D1_RES           1470 src/dps8/dps8_cpu.h #define D1_RES Dk_RES [0]
D1_RES            729 src/dps8/dps8_ins.c     putbits36_24 (& words[3], 12, cpu.du.D1_RES);
D1_RES            781 src/dps8/dps8_ins.c     cpu.du.D1_RES   = getbits36_24 (words[3], 12);