IRO_ISN 915 src/dps8/dps8_cpu.h word1 IRO_ISN; // 0 IRO AVF Illegal Ring Order IRO_ISN 501 src/dps8/dps8_faults.c cpu . cu . IRO_ISN = 0; IRO_ISN 567 src/dps8/dps8_faults.c cpu . cu . IRO_ISN = 1; IRO_ISN 759 src/dps8/dps8_faults.c cpu.cu.IRO_ISN = 0; IRO_ISN 351 src/dps8/dps8_ins.c putbits36_1 (& words[1], 0, cpu.cu.IRO_ISN); IRO_ISN 604 src/dps8/dps8_ins.c