IMP,3147,IMP 4:35 PM 7/19/1974 PAGE 1 MVDH,3147,IMP 12:58 PM 7/22/1974 PATCH BEG END BUFS 146 160 710 730 2625 2631 3055 2 3735 3745 4057 1 4710 4715 5027 1 5670 5676 6010 1 6670 6677 7011 1 7625 7632 10056 2 10636 10643 11067 2 11642 11663 12107 2 12770 12775 13107 1 13765 13772 14104 1 14771 14777 15111 1 15726 15732 16044 1 16730 16737 17051 1 17537 17543 20101 3 20747 20754 21066 1 21751 21761 22073 1 22741 22745 23057 1 23732 23740 24052 1 24661 24665 25111 2 25627 25627 26053 2 26701 26705 27017 1 27677 27667 30001 1 30654 30662 31106 2 31772 31772 32104 1 33005 33005 0 33505 34043 3 34663 34672 35004 1 35004 36012 7 36012 37020 7 37020 40026 7 70 TOTAL BUFFERS 53 TOTAL BUFFERS IF VDH PRESENT 24 STORE AND FORWARD LIMIT 52 REASSEMBLY LIMIT 26 IMP-TIP CONVERSION REGISTERS 20 STATISTICS GATHERING PLACES IMP,3147,IMP 4:35 PM 7/19/1974 PAGE 2 MVDH,3147,IMP 12:58 PM 7/22/1974 HALT LOCATIONS 2021 IMPOSSIBLE RSFLAG 3310 BACK HOST WAKE-UP IN EXA MODE 3340 IMP NUMBER WRONG -- SERIOUS FAILURE! 3345 PRIM IS WRONG -- SERIOUS FAILURE 3363 LINSUP WRONG -- CROCKY FAILURE 4241 SENDING INC? TO IMP=X, MESSNO=A 5416 NEIGHBOR IMP CHANGED 6067 RECVD TRANSMISSION FROM DEAD IMP 6162 RALLY ENTRY ALREADY PRESENT FOR REQ 1 PKT 6170 MAXR EXCEEDED BY A NON-REQUEST 1 PKT MESS 6177 MINF VIOLATED BY A NON-REQUEST 1 PKT MESS 6213 RALLY ENTRY ALREADY PRESENT FOR DESTINATION DEAD 6420 RALLY ENTRY ALREADY PRESENT FOR INC OR REQ8 7075 CANT FIND MULTI-PKT MESS FOR THIS REPLY 7442 DID A RESET-R, SENDING RESET REPLY TO IMP=X, MESSNO=A 7444 SENDING RESET REQUEST TO IMP=X, MESSNO=A 7502 NO REAS BLOCK FOR MULTI-PKT MESS 7510 MAXR EXCEEDED BY NON-REQUEST MULTI-PKT MESS 7516 MINF VIOLATED BY NON-REQUEST MULTI-PKT MESS 10407 SOFTWARE CHECKSUM ERROR IN PACKET 10411 M2I BAD PACKET LENGTH FOR ADDER 10444 SPURIOUS ACK 10502 QUASI-IMPOSSIBLE SPURIOUS ACK 11146 M2I RCVD BLK 11241 RELOAD DEMAND WITH BAD PASSWORD 11300 LINE SPEED DECREASED 11313 LINE SPEED INCREASED 11410 I2M SEND BLK 12351 ROUTING MESSAGE CHECKSUM ERROR - INTRA IMP 12460 I2M BAD LENGTH PACKET FOR ADDER 12540 MODEM OUT DETECTED INTRA-IMP CHECKSUM ERROR 12610 200 RETRANSMISSIONS - SERIOUS MALFUNCTION 12632 MODEM RESTART IN EXA MODE 13206 GOT HARDWARE H2I INT WITH HITT=-1 13642 HI BAD BACKET LENGTH FOR ADDER 14423 HI FIRST PKT TIMED OUT 14607 HI MIDDLE OR LAST PACKET TIMED OUT 16647 IH PACKET TOO LONG FOR ADDER 16653 HOST OUTPUT DETECTED INTRA-IMP CKSUM ERROR 21106 ADD CHAIN CHECKER IN EXA MODE 21576 QUEUE COUNTER WENT NEGATIVE 27226 SUCK RCVD BLOCK 27232 INVALID BLOCK TYPE 27236 PREMATURE EOM FOR BLOCK 27242 BAD BLOCK PASSWORD 27257 BLOCK TOO BIG FOR BUFFER, IGNORED 27311 PLEASE BEGIN TO OPEN SINK 27345 PLEASE BEGIN TO OPEN FONT 27373 SUCK SIDE GOT I CAN HEAR BLOCKS 27533 BLOCK ON JAM QUEUE WITH POSITIVE DISPATCH 27535 BLOCK ON JAM QUEUE WITH OUT-OF-RANGE DISPATCH 27547 IMPOSSIBLE GO DOWN BLOCK IN JAM QUEUE 36163 BAD VDH MODEM INTERFACE DMC POINTER 36205 VDH LOOP STATE CHANGED 36354 VDH SPURIOUS ACK 37137 HOST34 VDH MODEM BITS INCONSISTENT 37153 ATTEMPT TO START ALREADY RUNNING VDH IMP,3147,IMP 4:35 PM 7/19/1974 PAGE 3 MVDH,3147,IMP 12:58 PM 7/22/1974 37246 ATTEMPT TO START A NON-VDH HOST IMP,3147,IMP 4:35 PM 7/19/1974 PAGE 4 MVDH,3147,IMP 12:58 PM 7/22/1974 USEFUL LOCATIONS 106 LOCAL IMP NUMBER - MINE 135 DDT STAND ALONE ENTRY 136 TIP RESTART FLAG 137 NICE-STOP AND RELOAD FLAG 140 NICE-STOP AND RESTART FLAG 141 HOST & MODEM INTERFACE CONTROL 142 HOST INTERFACE TEST ENABLE AND TEST WORD 144 VDH RESTART FLAG NVDH-- BITS 6,7,8,9 ARE HOSTS 0,1,2,3 145 SAT RESTART FLAG 160 NEIGHB 165 RUT 266 SLT 457 HILO 505 HIHD - HOST STATUS TABLE 647 TSEX - TRANSMIT ODD-EVEN BITS 654 RSEX - RECEIVE ODD-EVEN BITS 701 HOST SIMULATOR FLAG 730 HOST-GOING-DOWN INFORMATION 1005 HOST34 SWITCH 3504 DZTB - GOES WITH JAM 3510 WTTB - GOES WITH SUCK 3514 SLTB - GOES WITH SLEEP (BACK HOSTS) 3522 LIGHT DISPLAY POINTER AND NOMINAL DISPLAY WORD 10341 NOP HERE TO ACCEPT BAD CHECKSUM PACKETS 11241 DEMAND RELOAD PASSWORD 12437 NOP HERE TO STOP CHECKSUM VERIFY IN I2M 13170 HI INTERFACE TIMER - HITT 13313 JAM CALL TO DOZE 13316 GAMT 13430 HI - WAITING FOR A PKT TO THROW AWAY 13452 HI - WAITING FOR INITIAL INPUT 13506 HI - INPUT BEING BLOCKED BY OUTPUT 13507 HI - 2 WORD INPUT AREA 13532 HI - NO FREE SPACE 13633 NOP HERE TO TURN OFF H2I CHECKSUM GENERATION 14116 HI - WAITING FOR LEADER 14373 HI - WAITING FOR TWO-WORD STORE 14417 HI - WAITING FOR FIRST PKT 14435 HI - WAITING FOR MESS NO FOR 1 PKT MESS 14474 HI - WAITING FOR PPT SLOT FOR REQ1 14507 HI - WAITING FOR MESS NO FOR 8 PKT MESS 14523 HI - WAITING FOR PLT SLOT FOR MESS8 14535 HI - WAITING FOR PLT SLOT FOR REQ8 14553 HI - WAITING FOR TASK TO TAKE A REQ8 14562 HI - WAITING FOR ALL8 14573 HI - WAITING FOR MESS NO FOR MESS8 14601 HI - WAITING FOR MIDDLE PACKET 14705 HI - WAITING FOR TASK TO TAKE A PKT 16141 IHLO 16247 IH - 2 WORD OUTPUT AREA 16427 IH - WAITING FOR INITIALIZATION DELAY 16511 IH - WAITING FOR READY LINE TO DROP 16513 IH - WAITING FOR READY LINE TO GO UP 16534 IH - NOTHING TO DO 16565 IH - SENDING 2 WORD MSG 16663 NOP HERE TO TURN OFF I2H CHECKSUM CHECK 17140 IH - SENDING OUT A PKT IMP,3147,IMP 4:35 PM 7/19/1974 PAGE 5 MVDH,3147,IMP 12:58 PM 7/22/1974 17364 SUCK CALL TO WAIT 17413 SUCT 23123 TIPNET-- DCLR 23517 TIPNET-- NOP HERE IN 'S' CODE 24110 TIPNET-- DSRC 24223 TIPNET-- DOUT 30421 PARAMETERS TABLE 32405 TRANSMIT, RECEIVE, AND ALLOCATE MESSAGE TABLES 32705 RALLY TABLE - ALLOCATES TO SEND 33335 PPT - PENDING PACKET TABLE 33355 PLT - PENDING LEADER TABLE 35004 VDHNET-- VDH BEGINS HERE 35060 VDH - HOST TO MODEM MAP 36046 VDH - UP/DOWN STATE COUNTERS 36066 VDH - LOOP STATE FLAGS 37371 VDH - TIMEOUT COROUTINE ENTRIES IMP,3147,IMP 4:35 PM 7/19/1974 PAGE 6 MVDH,3147,IMP 12:58 PM 7/22/1974 CRASH-RELOAD LOCATIONS 3374 BACKGROUND SAW TIMEOUT STOP 12317 I2M ROUTING CODE BROKEN 21113 ADD CHAIN BROKEN 21122 ADD CHAIN RETURN BROKEN 21131 SOFTWARE WDT FIRED 25141 MEM PARITY ERROR DETECTED 26120 RSTINP CODE BROKEN 27027 RUTCLK CODE BROKEN 27153 RUT CHECKSUM ERROR IMP,3147,IMP 4:35 PM 7/19/1974 PAGE 7 MVDH,3147,IMP 12:58 PM 7/22/1974 IMP BUFFERS ASSIGNED PAGE 2 2631 2743 3 3745 4 4715 5 5676 6 6677 7 7632 7744 10 10643 10755 11 11663 11775 12 12775 13 13772 14 14777 15 15732 16 16737 17 17543 17655 17767 20 20754 21 21761 22 22745 23 23740 24 24665 24777 25 25627 25741 26 26705 27 27667 30 30662 30774 31 31772 32 33 33505 33617 33731 34 34672 35 35004 35116 35230 35342 35454 35566 35700 36 36012 36124 36236 36350 36462 36574 36706 37 37020 37132 37244 37356 37470 37602 37714