← spy1 → spy4

CADR – PDP11 EXAMINE (A, M, FLAG2) [spy2]

3F1574LS244TS BUS DVRAENBBENB3E1674LS244TS BUS DVRAENBBENB3A2674LS244TS BUS DVRAENBBENB3A2774LS244TS BUS DVRAENBBENB1F1174LS244TS BUS DVRAENBBENB1F1374LS244TS BUS DVRAENBBENB4B1774LS244TS BUS DVRAENBBENB4B1374LS244TS BUS DVRAENBBENB4A1374LS244TS BUS DVRAENBBENB4A1574LS244TS BUS DVRAENBBENBNCWMAPDNCNCSPY0SPY1SPY2SPY3SPY4SPY5SPY6SPY7SPY8SPY9SPY10SPY11SPY12SPY13SPY14SPY15SPY.FLAG2SPY.FLAG2PC Source bit 0. False if popj, or dispatch and not fallthrough, or jump return if false and jump-condition is false, or jump return and jump condition and not jump invert condition. Used together with PCS1 to select the NPC bus source, 0=SPC, 1=IR, 2=DPC, 3=IPC.PCS0PC Source bit 1. False if popj and not ignore popj, or jump if false and not jump condition, or instruction is jump and not invert condition and jump condition, or dispatch enabled and R-bit but not P-bit. Used together with PCS0 to select the NPC bus source, 0=SPC, 1=IR, 2=DPC, 3=IPC.PCS1Jump Condition. Selected based on IR0-IR2, IR5 must be high.JCONDVMAOKPrevious instruction, Spy interface or a Trap NOPed the current instruction.NOPIR48NCSPUSHDPDLWRITEDIMODDInstruction Write Delayed. Set in the clock cycle after a jump instruction with P and R set.IWRITEDDestination SPC delayed. Set in the clock cycle after DESTSPC was set.DESTSPCDM15M14M13M12M11M10M9M8M7M6M5M4M3M2M1M0SPY.MLSPY.MLSPY.ALSPY.ALAA15AA14AA13AA12AA11AA10AA9AA8AA7AA6AA5AA4AA3AA2AA1AA0SPY.AHSPY.AHA31AA30A29A28A27A26A25A24A23A22A21A20A19A18A17A16M31M30M29M28M27M26M25M24M23M22M21M20M19M18M17M16SPY.MHSPY.MHSPY15SPY14SPY13SPY12SPY11SPY10SPY9SPY8SPY7SPY6SPY5SPY4SPY3SPY2SPY1SPY0SPY15SPY14SPY13SPY12SPY11SPY10SPY9SPY8SPY7SPY6SPY5SPY4SPY3SPY2SPY1SPY0SPY15SPY14SPY13SPY12SPY11SPY10SPY9SPY8SPY7SPY6SPY5SPY4SPY3SPY2SPY1SPY0SPY15SPY14SPY13SPY12SPY11SPY10SPY9SPY8SPY7SPY6SPY5SPY4SPY3SPY2SPY1SPY0191161824614128119713155317191161824614128119713155317191161824614128119713155317191161824614128119713155317191161824614128119713155317191161824614128119713155317191161824614128119713155317191161824614128119713155317191161824614128119713155317191161824614128119713155317

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