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...

means it was set to 9600bps. Setting it to 38400 did not work, and switching it back to 9600bps now also failed.. Measuring the switch showed that several of the switches failed to make contact, so I decided to replace the switch. Desoldering the thing showed something special:

...

clearly some rework has been done on the board at some time.

I did not have a 7 switch DIP switch so I had to use an 8 switch one and cut of the legs of the 8th switch:

...

I could now switch to 38400bps for the TU58 which helps a lot with load speed of these diagnostics (wink)

Preparing for running the emulation

...

Code Block
CZM9BE0 M9312/1144 UBI BOOT

DIAG. ROM (E20) (FOR 11-44 UBI: E58)C0

BOOTSTRAP ROM ENTRY POINTS AND DEVICE CODES
LOC.             NO DIAG.       RUN DIAG.       DEVICE CODE

ROM 1(E48)      173004          173006          MS

ROM 2(E49)      173204          173206          DL


PSEUDO POWER-FAIL VECTOR ADR./NEW PC    173024  173052


ROM SEQUENCE IS INCORRECT AS PER INSTALLATION PROCEDURE.

SEQUENCE SHOULD BE:

ROM 1(E48)      DL
ROM 2(E49)      MS

END PASS
END PASS
END PASS
END PASS
END PASS
END PASS

DL = RL01 / RL02 disk

MS = TS04/TU80/TSU05 tape

ZDLDI0 (mfm, slu)

Code Block
CZDLDI0 DL11-W 11/44 MFM SLU
02 DEVICES UNDER TEST  
TRAP CATCHER
TEST#   ERR PC  RCSR    OLDPC   TRAP ADR
000024  014540  176500  007472  000424


CONSOLE
17777707 014544

...

Code Block
CZDLDI0 DL11-W 11/44 MFM SLU
02 DEVICES UNDER TEST  
TRAP CATCHER
TEST#   ERR PC  RCSR    OLDPC   TRAP ADR
000024  014540  176500  007474  000424


CONSOLE
17777707 014544

KFPCD0 (fpu11)

Code Block
CKFPCD0 FP11F FLTG PNT PRT C
EOP MESSAGE WILL PRINT EVERY 1000 PASSES (15 SECONDS)
HIT ANY KEY TO ENABLE/DISABLE EOP MESSAGES

STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175020          040362  040364  040200  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175040          040360  040356  040200  


STEXP A,(R) FAILED.
  TEST. PC OF CALL.     PC OF ERROR.    GOT FPS.        EXPECTED FPS.
74      040300          040200          040010          040010  
AC OPERAND:             123456  076543  177777  177777          
GOT RESULT:             123456  
EXPECTED RESULT:        177700  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175020          040362  040364  040200  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175040          040360  040356  040200  


STEXP A,(R) FAILED.
  TEST. PC OF CALL.     PC OF ERROR.    GOT FPS.        EXPECTED FPS.
74      040300          040200          040004          040004  
AC OPERAND:             123456  076543  177777  177777          
GOT RESULT:             123456  
EXPECTED RESULT:        000000  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175020          040362  040364  040200  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175040          040360  040356  040200  


STEXP A,(R) FAILED.
  TEST. PC OF CALL.     PC OF ERROR.    GOT FPS.        EXPECTED FPS.
74      040300          040200          040000          040000  
AC OPERAND:             123456  076543  177777  177777          
GOT RESULT:             123456  
EXPECTED RESULT:        000001  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175020          040362  040364  040200  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175040          040360  040356  040200  


STEXP A,(R) FAILED.
  TEST. PC OF CALL.     PC OF ERROR.    GOT FPS.        EXPECTED FPS.
74      040300          040200          040000          040000  
AC OPERAND:             123456  076543  177777  177777          
GOT RESULT:             123456  
EXPECTED RESULT:        000175  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175020          040362  040364  040200  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175040          040360  040356  040200  


STEXP A,(R) FAILED.
  TEST. PC OF CALL.     PC OF ERROR.    GOT FPS.        EXPECTED FPS.
74      040300          040200          040010          040010  
AC OPERAND:             123456  076543  177777  177777          
GOT RESULT:             123456  
EXPECTED RESULT:        177601  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175020          040362  040370  040200  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175040          040360  040352  040200  


STEXP A,(R) FAILED.
  TEST. PC OF CALL.     PC OF ERROR.    GOT FPS.        EXPECTED FPS.
74      040300          040200          047710          047710  
AC OPERAND:             123456  076543  177777  177777          
GOT RESULT:             123456  
EXPECTED RESULT:        177756  


END PASS # 1  TOTAL ERRORS THIS PASS 22

STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175020          040362  040364  040200  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175040          040360  040356  040200  


STEXP A,(R) FAILED.
  TEST. PC OF CALL.     PC OF ERROR.    GOT FPS.        EXPECTED FPS.
74      040300          040200          040010          040010  
AC OPERAND:             123456  076543  177777  177777          
GOT RESULT:             123456  
EXPECTED RESULT:        177700  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175020          040362  040364  040200  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175040          040360  040356  040200  


STEXP A,(R) FAILED.
  TEST. PC OF CALL.     PC OF ERROR.    GOT FPS.        EXPECTED FPS.
74      040300          040200          040004          040004  
AC OPERAND:             123456  076543  177777  177777          
GOT RESULT:             123456  
EXPECTED RESULT:        000000  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175020          040362  040364  040200  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175040          040360  040356  040200  


STEXP A,(R) FAILED.
  TEST. PC OF CALL.     PC OF ERROR.    GOT FPS.        EXPECTED FPS.
74      040300          040200          040000          040000  
AC OPERAND:             123456  076543  177777  177777          
GOT RESULT:             123456  
EXPECTED RESULT:        000001  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175020          040362  040364  040200  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175040          040360  040356  040200  


STEXP A,(R) FAILED.
  TEST. PC OF CALL.     PC OF ERROR.    GOT FPS.        EXPECTED FPS.
74      040300          040200          040000          040000  
AC OPERAND:             123456  076543  177777  177777          
GOT RESULT:             123456  
EXPECTED RESULT:        000175  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175020          040362  040364  040200  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175040          040360  040356  040200  


STEXP A,(R) FAILED.
  TEST. PC OF CALL.     PC OF ERROR.    GOT FPS.        EXPECTED FPS.
74      040300          040200          040010          040010  
AC OPERAND:             123456  076543  177777  177777          
GOT RESULT:             123456  
EXPECTED RESULT:        177601  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175020          040362  040370  040200  


STEXP AUTO INCREMENTED/DECREMENTED R0 INCORRECTLY
M7095 ECO # 10 MIGHT NOT BE INSTALLED
  TEST  PC OF CALL      STEXP OP CODE   EXPCTD  RECVED  PC OF ERROR
74      040232          175040          040360  040352  040200  


STEXP A,(R) FAILED.
  TEST. PC OF CALL.     PC OF ERROR.    GOT FPS.        EXPECTED FPS.
74      040300          040200          047710          047710  
AC OPERAND:             123456  076543  177777  177777          
GOT RESULT:             123456  
EXPECTED RESULT:        177756  


END PASS # 2  TOTAL ERRORS THIS PASS 22

Not a happy FPU… KFPA and KFPB do pass though.