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PDP-8 MAINDEC DIRXBD question

BitWiz

BitWiz

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What is the proper way to answer this question when prompted on the console:

.RUN SDA1 DIRXBD.SV

MAINDEC-08-DIRXB-D
REMOVE DIAGNOSTIC DISKETTE^E

SELECT DISKETTE DRIVES
SR=0750

I'm afraid my DEC SPEAK translator is broken today.

I'm about to check the source code to see what it does next.

The documentation just says:

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Further reading tell me what I need to know. Here is my latest session. Why does it say no drives selected?

.RUN SDA1 DIRXBD.SV

MAINDEC-08-DIRXB-D
REMOVE DIAGNOSTIC DISKETTE^E

SELECT DISKETTE DRIVES
SR=0750 0000


CMND XDR CODE RSTA START TARGET TEST PASS
12 - - - [HOME] 0 0 0(0) 0
DEVICE TEST HUNG AT PC 676
MAINDEC-08-DIRXB-D

STATISTICAL LOG (AUTOMATIC DUMP)
DRIVES SELECTED: (NONE)
MAINDEC-08-DIRXB-D WILL RESTART

INIT - - - [HOME] [HOME]
DEVICE TEST HUNG AT PC 4426
MAINDEC-08-DIRXB-D

STATISTICAL LOG (AUTOMATIC DUMP)
DRIVES SELECTED: (NONE)
MAINDEC-08-DIRXB-D WILL RESTART

INIT - - - [HOME] [HOME]
DEVICE TEST HUNG AT PC 4426
MAINDEC-08-DIRXB-D

STATISTICAL LOG (AUTOMATIC DUMP)
DRIVES SELECTED: (NONE)
MAINDEC-08-DIRXB-D WILL RESTART

INIT - - - [HOME] [HOME]
DEVICE TEST HUNG AT PC 4426
MAINDEC-08-DIRXB-D

STATISTICAL LOG (AUTOMATIC DUMP)
DRIVES SELECTED: (NONE)
MAINDEC-08-DIRXB-D WILL RESTART

INIT - - - [HOME] [HOME]
DEVICE TEST HUNG AT PC 4426
MAINDEC-08-DIRXB-D

STATISTICAL LOG (AUTOMATIC DUMP)
DRIVES SELECTED: (NONE)
MAINDEC-08-DIRXB-D WILL HALT


WAITING
 
BitWiz said:
What is the proper way to answer this question when prompted on the console:

.RUN SDA1 DIRXBD.SV

MAINDEC-08-DIRXB-D
REMOVE DIAGNOSTIC DISKETTE^E

SELECT DISKETTE DRIVES
SR=0750
Click to expand...
I think that the diagnostic is ready to scribble on whichever floppy/floppies are associated with IOT device codes 675x. You are expected to remove the diagnostic diskette, replace it with a scratch diskette, then optionally correct the device code, if it is not 75. For instance, to make it use 676x, you'd type "0760" before hitting enter.
 
Current results:

MAINDEC-08-DIRXB-D
REMOVE DIAGNOSTIC DISKETTE^E

RX8 DEVICE CODE IS
SR=0750 ^E
?

SR=0750 6750
6750
SELECT DISKETTE DRIVES
SR=6750 0000


CMND XDR CODE RSTA START TARGET TEST PASS
12 200 20 200 [HOME] 0 0 0(0) 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0
MAINDEC-08-DIRXB-D

STATISTICAL LOG (AUTOMATIC DUMP) PASS ABORTED
DRIVES SELECTED: (NONE)
MAINDEC-08-DIRXB-D WILL RESTART
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

12 200 20 200 [HOME] 0 0
INIT 200 20 200 [HOME] 0 0

I'm still totally confused. Is this test only for the RX01 and not the RX02?
 
BitWiz said:
SR=0750 6750
Click to expand...
You want 0750 if that's your card address. It wants the device code portion of the IOT as Vince said.
BitWiz said:
I'm still totally confused. Is this test only for the RX01 and not the RX02?
Click to expand...
Yes. Title of diagnostic is RX8/RX01 data reliability. If writeup doesn't say RX02 you need drive in RX01 compatibility mode.
http://www.pdp8online.com/pdp8cgi/query_docs/tifftopdf.pl/pdp8docs/dirxb-d-d.pdf

You need AIRXAE, AIRXBF for RX02.
 
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