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Trailing-Edge - PDP-10 Archives - klad_sources - klad.sources/dskcd.txt
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;DSKCD







				IDENTIFICATION
				--------------

	PRODUCT CODE:		AH-E331A-DD

	DIAGNOSTIC CODE:	DSKCD

	PRODUCT NAME:	 	DSKCDA0 DECSYSTEM 2020 ADVANCED
				INSTRUCTION DIAGNOSTIC (4)

	VERSION:		0.1

	DATE RELEASED:		MARCH 1978

	MAINTAINED BY:		DIAGNOSTIC ENGINEERING

	AUTHOR:			JOHN R. KIRCHOFF

		        COPYRIGHT (C) 1978

	        DIGITAL EQUIPMENT CORPORATION, MAYNARD, MASS.

	THIS SOFTWARE IS FURNISHED UNDER A LICENSE FOR  USE  ONLY  ON  A
	SINGLE COMPUTER SYSTEM AND MAY BE COPIED ONLY WITH THE INCLUSION
	OF THE ABOVE COPYRIGHT NOTICE.   THIS  SOFTWARE,  OR  ANY  OTHER
	COPIES  THEREOF, MAY NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE
	TO ANY OTHER PERSON EXCEPT FOR USE ON SUCH SYSTEM AND TO ONE WHO
	AGREES  TO  THESE  LICENSE TERMS.  TITLE TO AND OWNERSHIP OF THE
	SOFTWARE  SHALL  AT   ALL  TIMES  REMAIN  IN  DIGITAL  EQUIPMENT
	CORPORATION.

	THE INFORMATION IN THIS DOCUMENT IS SUBJECT  TO  CHANGE  WITHOUT
	NOTICE  AND  SHOULD  NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL
	EQUIPMENT CORPORATION.

	DIGITAL EQUIPMENT CORPORATION ASSUMES NO  RESPONSIBILITY FOR THE
	USE  OR  RELIABILITY  OF  ITS SOFTWARE IN EQUIPMENT WHICH IS NOT
	SUPPLIED BY DIGITAL EQUIPMENT CORPORATION.
							MAINDEC-10-DSKCD.TXT
							PAGE 2

			TABLE OF CONTENTS
			-----------------

1.0	ABSTRACT

2.0	REQUIREMENTS

2.1	EQUIPMENT

2.2	STORAGE

2.3	PRELIMINARY PROGRAMS

3.0	PROGRAM PROCEDURES

3.1	LOADING PROCEDURE

3.2	STARTING PROCEDURE

3.3	OPERATING PROCEDURE

4.0	DATA SWITCH FUNCTIONS

5.0	ERRORS

6.0	ITERATION COUNTER

7.0	CYCLE TIME

8.0	OPERATIONAL VARIATIONS

9.0	MISCELLANEOUS

10.0	LISTING
							MAINDEC-10-DSKCD.TXT
							PAGE 3

1.0	ABSTRACT

	THIS DECSYSTEM 2020 ADVANCED INSTRUCTION DIAGNOSTIC IS THE
	FOURTH IN A SERIES OF DECSYSTEM 2020 ADVANCED PROCESSOR
	DIAGNOSTICS.

	THE DIAGNOSTIC PERFORMS LOGIC TESTING OF THE PROCESSOR
	AND MICRO-CODE EXTENDED ADDITION AND ASSOCIATED LOGIC
	USED BY THE DOUBLE PRECISION FLOATING POINT INSTRUCTIONS:
	DFAD, DFSB, DFMP AND DFDV.


2.0	REQUIREMENTS

2.1	EQUIPMENT

	A DECSYSTEM 2020 EQUIPPED WITH A MINIMUM OF 32K OF MEMORY

	CONSOLE PROCESSOR
	CONSOLE TELETYPE
	LOAD DEVICE

2.2	STORAGE

	THE PROGRAM RUNS WITHIN 32K OF MEMORY.

2.3	PRELIMINARY PROGRAMS

	PREVIOUS PROCESSOR DIAGNOSTICS

3.0	PROGRAM PROCEDURES

3.1	LOADING PROCEDURE

	****** NOTE ******
	THIS DIAGNOSTIC REQUIRES THAT THE DECSYSTEM 2020 SUBROUTINE
	PROGRAM BE RESIDENT IN THE DECSYSTEM 2020.

	FOLLOW THE APPROPRIATE DIAGNOSTIC LOADING PROCEDURES.
							MAINDEC-10-DSKCD.TXT
							PAGE 4

3.2	STARTING PROCEDURE

	A.  SELECT OPERATIONAL CONSOLE DATA SWITCH SETTINGS (REFER TO
	    4.0 DATA SWITCH FUNCTIONS).

	    RUN UNDER "SMMON".
	    THE FOLLOWING QUESTIONS WILL BE ASKED TO 
	    SELECT THE OPERATIONAL SWITCHES:

		    TELETYPE SWITCH CONTROL ? 0,S OR Y (CR) -

		    IF THE OPERATOR TYPES "Y", THE FOLLOWING QUESTIONS
		    ARE ASKED AND THE OPERATOR RESPONDS BY TYPING
		    THE ANSWER AS SIX OCTAL DIGITS REPRESENTING
		    THE DESIRED SWITCH SETTINGS.

		    SPECIFY LH SWITCHES IN OCTAL-

		    SPECIFY RH SWITCHES IN OCTAL-

		    IF THE OPERATOR TYPES "0", ZERO'S ARE USED FOR
		    THE SWITCH SETTINGS.

		    IF THE OPERATOR TYPES "S", PREVIOUSLY SET SWITCHES
		    ARE USED.  THIS IS ONLY VALID UPON RESTARTING
		    OF AN INTERRUPTED PROGRAM.
							MAINDEC-10-DSKCD.TXT
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3.3	OPERATING PROCEDURE

	A.  TO THROUGHLY TEST ALL HARDWARE, ALL TEST CONTROL DATA 
	    SWITCHES SHOULD BE SET TO 0.

	B.  WHEN DEBUGGING HARDWARE, SET SWITCHES TO 0.  ALLOW THE 
	    TELETYPE TO PRINT THE ERROR MESSAGES.  THIS ALLOWS THE 
	    PROGRAM TO RUN A COMPLETE PASS AND THEN THE ERROR MESSAGES
	    MAY BE CORRELATED TO QUICKLY DIAGNOSE THE FAILURE.  IF A
	    HARDWARE PROBLEM IS SUCH THAT THE ERROR MESSAGES, AFTER THE
	    FIRST ONE, HAVE NO MEANING (FIRST ERROR CAUSES ALL FOLLOWING
	    TESTS TO FAIL) SET THE LOOP ON ERROR SWITCH AND RESTART THE
	    TEST FROM THE BEGINNING.  THE FIRST FAILURE WILL THEN CAUSE
	    THE PROGRAM TO ENTER A LOOP SUITABLE FOR SCOPING.

	    THE ERROR MESSAGE USED IN CONJUNCTION WITH THE LISTING AND
	    SCOPING IF NECESSARY SHOULD ALLOW THE FAILING CONPONENT 
	    TO BE ISOLATED AND REPLACED AND/OR REPAIRED.

	C.  WHEN TAKING MARGINS, SET DATA SWITCHES 'NOPNT' AND 'DING'.
	    THIS WILL INHIBIT PRINTOUT BUT WILL ALLOW THE TELETYPE
	    BELL TO BE RUNG WHEN A ERROR OCCURS.  IF THE MARGIN OBTAINED
	    IS UNACCEPTABLE, THE OPERATOR MAY REVERT TO STANDARD SWITCH
	    SETTINGS FOR DEBUGGING PURPOSES.

	D.  ERROR INFORMATION MAY BE OBTAINED QUICKLY BY PRINTING 
	    ERRORS ON THE LINE PRINTER.

	E.  IN THE EVENT OF A PRINT ROUTINE FAILURE THE 'NOPNT' SWITCH
	    AND THE 'ERSTOP' SWITCH MAY BE SET TO INHIBIT PRINTOUT 
	    BUT HALT THE PROGRAM POINTING TO THE ERROR.

							MAINDEC-10-DSKCD.TXT
							PAGE 6

4.0	DATA SWITCH FUNCTIONS

	SWITCH		STATE	FUNCTION
	------		-----	--------

	0    ABORT	0	NORMAL OPERATION
			1	ABORT AT END OF PASS

	1    RSTART		NOT USED

	2    TOTALS		NOT USED

	3    NOPNT	0	NORMAL TYPEOUT
			1	INHIBIT ALL PRINT/TYPEOUT
				(EXCEPT FORCED)

	4    PNTLPT	0	NORMAL OUTPUT TO TTY
			1	PRINT ALL DATA ON LPT
				(LOGICAL DEVICE, USER MODE)

	5    DING	0	NO FUNCTION
			1	RING TTY BELL ON ERROR

	6    LOOPER	0	PROCEED TO NEXT TEST
			1	ENTER SCOPE LOOP ON TEST ERROR

	7    ERSTOP	0	NO FUNCTION
			1	HALT ON TEST ERROR

	8    PALERS	0	PRINT ONLY FIRST ERROR WHEN LOOPING
			1	PRINT ALL ERRORS, EVEN IF SAME ERROR

	9    RELIAB		NOT USED

	10   TXTINH	0	PRINT FULL ERROR MESSAGES.
			1	INHIBIT COMMENT PORTION OF 
				ERROR MESSAGES.

	11   INHPAG	0	ALLOW PAGING AND TRAP ENABLE
			1	INHIBIT PAGING AND TRAPPING

	12   MODDVC		NOT USED

	13   INHCSH	0	ALLOW CACHE USE
			1	INHIBIT CACHE
							MAINDEC-10-DSKCD.TXT
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5.0	ERRORS

	ERRORS ARE PRINTED ON THE TTY OR LINE PRINTER.  THE ERROR 
	PRINTOUT CONTAINS THE TEST TITLE, THE PC OF THE FAILURE, ERROR
	NUMBER AND THE CONTENTS OF AN APPLICABLE AC.

	THE PC VALUE IS USEFUL IN RELATING THE FAILURE TO THE LISTING.
	THE ERROR NUMBER IS PROVIDED SUCH THAT AN ERROR DICTIONARY MAY
	BE MADE AT SOME FUTURE DATE.

	IF AN AUDIO INDICATION OF A CONTINUING ERROR IS DESIRED
	THE 'DING' SWITCH MAY BE SET.

6.0	ITERATION COUNTER

	THE ITERATION COUNT OF THE PROGRAM IS PRINTED BY THE
	CONSOLE PROCESSOR.

7.0	CYCLE TIME

	THE CYCLE TIME OF THE PROGRAM IS IN THE MILLISECOND RANGE AND
	IS THEREFORE SUITABLE FOR TAKING MARGINS, VIBRATION TESTS,
	ETC.
							MAINDEC-10-DSKCD.TXT
							PAGE 8

8.0	OPERATIONAL VARIATIONS

	A.  DIAGNOSTIC MONITOR

	    THE PROGRAM IS USABLE WITH THE DIAGNOSTIC MONITOR TO PROVIDE
	    RELIABILITY TESTS, ACCEPTANCE TESTS, AND/OR TO PROVIDE A
	    QUICK METHOD OF ISOLATION OF A FAULT TO A PARTICULAR AREA
	    OF THE PROCESSOR.  CERTAIN PROCEDURES ARE USED WHEN THE
	    PROGRAM IS USED IN THIS MANNER.  THEY ARE:

	    1.	THE DIAGNOSTIC MONITOR TRANSFERS CONTROL TO THE PROGRAM
		AND STARTS IT AT LOCATION 30002.

	    2.	MONCTL - LOCATION 30043 IS USED AS THE DIAGNOSTIC MONITOR
		CONTROL WORD.
			LH = 0, STAND-ALONE OPERATION
			    -1, RUNNING UNDER DIAGNOSTIC MONITOR

			RH = RIGHT HALF OF CONSOLE SWITCHES IF UNDER
			     DIAGNOSTIC MONITOR CONTROL.

	B.  USER MODE

	    TO OUTPUT THE PRINTED ERROR MESSAGES TO A USER SPECIFIED
	    DEVICE IN USER MODE, ASSIGN THE DESIRED OUTPUT DEVICE TO
	    DEVICE NAME 'DEV' AND SET SWITCH 'PNTLPT'.  THE PHYSICAL
	    DEVICE USED CAN BE ANY DEVICE THAT CAN ACCEPT ASCII OUTPUT
	    FORMAT SUCH AS LPT, DSK, DTA, ETC.  THE CORRESPONDING 
	    OUTPUT FILE IS 'DSKCD.LPT'

	    EXAMPLE DEVICE ASSIGNMENT:

	    .ASSIGN DSK DEV

	    IN USER MODE THE PROGRAM WILL MAKE 1000(8) PASSES AND THEN
	    RETURN TO DIAMON COMMAND MODE.
							MAINDEC-10-DSKCD.TXT
							PAGE 9

8.0	OPERATIONAL VARIATIONS (CON'T)

	THE OUTPUT FILE (IF USED) MAY THEN BE LISTED BY USING THE
	NORMAL MONITOR COMMANDS (PRINT, LIST, TYPE, PIP, ETC.).

	IF THE PROGRAM IS ABORTED BEFORE COMPLETION (BY ^C, ETC.) THE
	OUTPUT FILE MAY BE CLOSED BY USING THE MONITOR 'REENTER' 
	COMMAND.

	C.  SYSTEM EXERCISER

	    START ADDRESS IS 30003.  DATA SWITCHES ARE PRESTORED IN
	    'SWTEXR' LOC 30023.

9.0	MISCELLANEOUS

	THE NON-EX-MEMORY AND PARITY STOP SWITCHES SHOULD BE RESET 
	(0).  THESE ERRORS, ILLEGAL UUO'S AND OTHER ERRORS OF THIS
	TYPE ARE HANDLED BY PRINTOUT ON THE TELETYPE.

10.0	LISTING