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.;8-APR-77-GR
\\
.LM0;.RM70;.F;.J;.FLAG CAP;.SP1;.TS5
<WTBOOT.DOC -- ^CHANGES ^FROM ^V5 TO ^V6(11)
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^APRIL 1977
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^COPYRIGHT (^C) 1971,1975,1976,1977
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^DIGITAL ^EQUIPMENT ^CORPORATION, ^MAYNARD, ^MASS.
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^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 ^^DEC\\.
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^THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT
NOTICE AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ^DIGITAL
^EQUIPMENT ^CORPORATION.
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^^DEC\\ ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS
SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY ^^DEC\\.
.T <WTB6.DOC
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<WTBOOT.DOC -- ^CHANGES FROM ^V5 TO ^V6(11)
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^APRIL 1977
.B3
1.0##<SUMMARY
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^THE PURPOSE OF THE RELEASE OF ^V6 OF <WTBOOT IS TO SUPPORT <RH20\'S
ON <KL10\'S. ^IF THE FEATURE TEST SWITCH <FTKL10 IS OFF (DEFAULT IS OFF),
ASSEMBLY AND LOADING OF <WTBOOT WITH <BOOTS.REL PRODUCES A <WTBOOT WHICH IS
FUNCTIONALLY IDENTICAL TO <WTBOOT ^V5.
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2.0##<EXTERNAL <CHANGES
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^THE DISTRIBUTED VERSION OF <WTBOOT WILL WRITE A <BOOTS ON DISK
PACKS WHICH IS FUNCTIONALLY EQUIVALENT TO THE ONE WRITTEN ON DISK PACKS
BY ^V5. ^VERSION 6 HAS BEEN MODIFIED SO AS NOT TO WRITE A READIN LOADER
ON BLOCK 0 OF A DISK PACK IF IT IS BEING RUN ON A <KL10 UNLESS IT IS
ASKED TO DO SO. ^IN DIALOGUE MODE ^V6 OF <WTBOOT DIFFERS SLIGHTLY FROM ^V5. ^THE "READIN LOADER"
QUESTION NOW ACCEPTS THE ANSWER OF "NONE", IN WHICH CASE IT WILL NOT WRITE
BLOCK 0 OF THE DISK PACK. ^IF THE FEATURE TEST SWITCH <FTKL10 IS SET
TO 0 THIS IS THE ONLY CHANGE FROM ^V5. ^IF <FTKL10 IS SET TO 1,
<WTBOOT MUST BE LOADED WITH BOTH <RH10/RP04 <BOOTS,
AND <RH20/RP04 <BOOTS. ^IN NON-DIALOGUE MODE THIS VERSION OF <WTBOOT
WILL WRITE <RH10 <BOOTS ON PACKS WHICH ARE ON <RH10'S, AND <RH20 <BOOTS ON
PACKS WHICH ARE ON <RH20\'S. ^IN DIALOGUE MODE THE ANSWER TO WHICH KIND 
OF <BOOTS IS TO BE WRITTEN CAN BE ANSWERED "<R2", IN WHICH CASE IT WILL
WRITE <RH20 <BOOTS, OR "<RP" IN WHICH CASE IT WILL WRITE <RH10 <BOOTS.
^THE DISTRIBUTED VERSIONS OF <WTBOOT, <WABOOT, AND <WIBOOT ARE FUNCTIONALLY
IDENTICAL TO THOSE DISTRIBUTED WITH ^V5. <WLBOOT HAS BEEN ASSEMBLED WITH
<FTKL10=1 AND NON-DIALOGUE MODE, SO THAT IT WILL WRITE <RH10
<BOOTS OR <RH20 <BOOTS ON THE DISK PACKS.

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3.0##<KNOWN <BUGS <AND <DEFICIENCIES
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^NONE.
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4.0##^^INSTALLATION INSTRUCTIONS\\
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^NONE.
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5.0##<INTERNAL <CHANGES
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^A FEATURE TEST SWITCH, <FTKL10, HAS BEEN ADDED TO <WTBOOT WHICH IF TURNED
ON (DEFAULTS OFF) ALLOWS THE SELECTION OF <RH10 OR <RH20 <BOOTS.
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[^END OF <WTB6.DOC]
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[^^WTB5.DOC\\ IS APPENDED AS AN INTEGRAL PART OF ^^WTB6.DOC\\]
.T ^^WTB5.DOC\\
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^^WTBOOT.DOC\\ -- ^CHANGES FROM ^V4 TO ^V5
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^SEPTEMBER 1976
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1.0##^^SUMMARY\\
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^THE PURPOSE OF THE RELEASE OF VERSION 5 OF ^^WTBOOT\\ IS TO SUPPORT
THE ^^RP06\\'S.
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2.0##^^EXTERNAL CHANGES\\
.B 1
^FIX TO LET READIN-LOADER UNDERSTAND ^^RP06\\ DISK DRIVES.
.B 3
3.0##^^KNOWN BUGS AND DEFICIENCIES\\
.B 1
^NONE.
.B 3
4.0##^^INSTALLATION INSTRUCTIONS\\
.B 1
^NONE.
.B3
5.0##<INTERNAL <CHANGES
.B1
^NONE.
.B 3
[^END OF ^^WTB5.DOC\\]
.B 1
[^^WTB4.DOC\\ IS APPENDED AS AN INTEGRAL PART OF ^^WTB5.DOC\\]
.T ^^WTB4.DOC\\
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.LM 0;.RM 70;.F;.J;.SP 1
^^WTBOOT.DOC\\ -- ^CHANGES FROM ^V3 TO ^V4
.BR
^JULY 1975
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1.0##^^SUMMARY\\
.B 1
^THE PURPOSE OF THE RELEASE OF VERSION 4 OF ^^WTBOOT\\ IS TO SUPPORT
VERSION 20 OF ^^BOOTS\\ (MAKING THE CONVERSION FROM MONITORS IN ^^SAV\\
FILE FORMAT TO MONITORS IN ^^EXE\\ FILE FORMAT AS PAINLESS AS POSSIBLE).
^IF THE FEATURE TEST SWITCH ^^STDWTB\\ IS ON (DEFAULT IS ON), ASSEMBLY
AND LOADING OF ^^WTBOOT\\ WITH ^^BOOTS.REL\\ PRODUCES A ^^WTBOOT\\ WHICH
IS FUNCTIONALLY IDENTICAL TO ^^WTBOOT\\ VERSION 3.
.B 3
2.0##^^EXTERNAL CHANGES\\
.B 1
^THE DISTRIBUTED VERSION OF ^^WTBOOT.SAV\\ WILL WRITE A ^^BOOTS\\ ON DISK PACKS WHICH IS FUNCTIONALLY
EQUIVALENT TO THE ONE WRITTEN ON DISK PACKS BY VERSION 3.  ^NAMELY,
A VERSION OF ^^BOOTS\\ WHICH WILL READ AND WRITE ^^.SAV\\ FORMAT FILES FROM
OR TO FIXED HEAD DISKS AND ^^RP02\\'S OR ^^RP03\\'S. ^ALSO, INCLUDED
IN THIS DISTRIBUTION ARE TWO PROGRAMS CALLED ^^WABOOT\\ (WHICH WRITES
A VERSION OF ^^BOOTS\\ WHICH WILL WORK ON BOTH ^^KA10\\ AND ^^KI10\\
PROCESSORS) AND ^^WIBOOT\\ (WHICH WRITES A VERSION OF  ^^BOOTS\\ WHICH WILL
ONLY WORK ON ^^KI10\\ PROCESSORS BUT WHICH IS CAPABLE OF DUMPING MORE
THAN 256^K) WHICH WILL AT THE OPERATORS OPTION
CARRY ON A DIALOGUE WHICH ALLOWS THE OPERATOR TO REQUEST 1 OF 3 THINGS
TO SELECTIVELY BE WRITTEN ON BLOCKS 4-7 OF EACH DISK PACK MOUNTED ON THE
SYSTEM OR TO BYPASS A DISK PACK NOT WRITING ANYTHING ON BLOCKS 4-7.
^THE OPTIONS WHICH ARE AVAILABLE INCLUDE WRITING A VERSION
OF ^^BOOTS\\ WHICH CAN READ/WRITE ^^EXE\\ FORMAT FILES FROM/TO ^^RP02/RP03\\ 
PACKS, WRITING A VERSION OF ^^BOOTS\\ WHICH CAN READ/WRITE ^^EXE\\ FORMAT
FILES FROM/TO ^^RP04\\ PACKS OR WRITING ZEROES IN BLOCKS 4-7 OF THE PACK
(THE MONITOR WILL IGNORE THIS PACK WHEN ATTEMPTING TO READ IN ^^BOOTS\\
ON A 407 RESTART. ^IN ADDITION, IN DIALOGUE MODE WILL ALSO ASK IF THE READ-IN ^^BOOTS\\
BOOTSTRAP SHOULD BE WRITTEN IN 18 BIT FORMAT OR IN 22 BIT FORMAT ON
BLOCK 0 OF EACH ^^RS04\\ OR ^^RP04\\ IN THE SYSTEM. ^FINALLY, THIS DISTRIBUTION INCLUDES A PROGRAM CALLED ^^WLBOOT\\
WHICH WILL WRITE A VERSION OF ^^BOOTS\\ WHICH ONLY WORKS ON THE ^^KL10\\
OR ALL THE ^^RP04\\ PACKS MOUNTED ON THE SYSTEM.
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^CAUTION:##^THE VERSION OF ^^BOOTS\\ WHICH WILL BE WRITTEN ONTO BLOCK 4-7
WILL ONLY READ/WRITE ^^EXE\\ FORMAT FILES, I.E., IT WILL NOT READ OR 
WRITE OLD FORMAT ^^SAV\\ FILES, AND IT WILL ONLY BE ABLE TO READ FROM
OR WRITE TO THE ONE TYPE OF CONTROLLER WHICH IT WAS CONFIGURED FOR, I.E.,
^^RP10 -RP02/RP03\\ DRIVES, OR ^^RH10 - RP04\\ DRIVES. ^IN THE NORMAL
CASE, AN INSTALLATION WILL HAVE ONE TYPE OF CONTROLLER OR THE OTHER BUT
NOT BOTH SO NORMALLY, THE VERSION OF ^^BOOTS\\ WHICH SUPPORTS THAT CONTROLLER
WOULD BE WRITTEN ON BLOCKS 4-7 OF ALL PACKS. ^HOWEVER, IF AN INSTALLATION
HAS BOTH ^^RP10\\S WITH ^^RP02/RP03\\ DRIVES AND ^^RH10\\S WITH ^^RP04\\
DRIVES, IT IS RECOMMENDED THAT THE VERSION OF ^^BOOTS\\ WHICH READS
AND WRITES ON THE PACKS WHERE THE MONITOR IS NORMALLY KEPT AND CRASHES
ARE NORMALLY DUMPED BE WRITTEN ON BLOCKS 4-7 OF ALL PACKS. ^FOR EXAMPLE,
IF THE INSTALLATION HAS BOTH ^^RP03\\ AND ^^RP04\\ PACKS BUT THE MONITOR
IS NORMALLY DUMPED FROM ^^DSKA\\ AND CRASHES ARE NORMALLY DUMPED ONTO ^^DSKA\\
WHICH IS A 2 PACK ^^RP04\\ FILE STRUCTURE, IT IS RECOMMENDED THAT ^^RP04\\
^^BOOTS\\ BE WRITTEN ON BLOCKS 4-7 OF ALL THE DISK PACKS ON THE SYSTEM.
^IF THE OPERATOR CHOOSES NOT TO ENTER THE DIALOGUE MODE, ^^WTBOOT\\
WILL WRITE A DEFAULT VERSION OF ^^BOOTS\\ ONTO BLOCKS 4-7 OF EVERY DISK
PACK MOUNTED ON THE SYSTEM. ^THE DEFAULT IS TO WRITE ^^RP02/RP03\\ ^^BOOTS\\
ON ^^RP02/RP03\\ PACKS AND ^^RP04\\ ^^BOOTS\\ ON ^^RP04\\ PACKS.
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3.0##^^KNOWN BUGS AND DEFICIENCIES\\
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^NONE.
.B 3
4.0##^^INSTALLATION INSTRUCTIONS\\
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^SELECT THE APPROPRIATE ^^.SAV\\ FILE FROM THE FOUR WHICH ARE DISTRIBUTED
(^^WTBOOT, WABOOT, WIBOOT\\, OR ^^WLBOOT\\) AND INSTALL IT ON ^^SYS\\.
.B 3
5.0##^^INTERNAL CHANGES\\
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^A FEATURE TEST SWITCH ^^STDWTB\\ (DEFAULTS OFF) HAS BEEN ADDED TO ^^WTBOOT\\
WHICH IF TURNED OFF, ENABLES DIALOGUE MODE AND ALLOWS ^^WTBOOT\\ TO
BE LOADED WITH BOTH AN ^^RP02/RP03\\ AND AN ^^RP04\\ ^^BOOTS.REL\\.
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[^END OF ^^WTB4.DOC\\]
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[^^WTB3.DOC\\ IS APPENDED AS AN INTEGRAL PART OF ^^WTB4.DOC\\]
.T ^^WTB3.DOC\\
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.LM 0;.RM 70;.F;.J;.SP 1;.TS 5,10
^^WTBOOT.DOC\\ -- ^CHANGES FROM VERSION 2(1) TO 3(2)
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^JANUARY 1975
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1.0##^^SUMMARY\\
.B 1
^^WTBOOT\\ VERSION 3 NOW SUPPORTS ^^RP04\\'S. ^IT WILL WRITE AN ^^HRI\\
(HARDWARE READ-IN) LOADER ON BLOCK 0 OF AN ^^RP04\\ WHICH WILL READ 
^^BOOTS\\ FROM BLOCKS 4-7 OF THE DISK INTO THE HIGHEST TWO PAGES OF THE
PROCESSOR'S PHYSICAL MEMORY. (^THIS IS THE SAME OPERATION WHICH ^^TOPS10\\
PERFORMS ON A 407 RESTART.
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^NOTE THAT IF THE ^^RH10\\ TO WHICH THE ^^RP04\\'S ARE CONNECTED IS
CONNECTED TO A ^^DF10C\\, THEN THE MODE SELECT SWITCH IN THE ^^DF10C\\ CAN
BE SET TO EITHER 18 BIT MODE (^K^A MODE) OR 22 BIT MODE (^K^I MODE).
^TO ACCOMODATE BOTH CASES, VERSION 3 OF ^^WTBOOT\\ WRITES THE READ-IN
LOADER IN 18-BIT FORMAT ON EVEN-NUMBERED DRIVES (0,2,4,6), BUT IN 22-BIT
FORMAT ON ODD-NUMBERED DRIVES (1,3,5,7). ^THEREFORE, IF THE ^^DF10C\\
IS SET TO ^K^A MODE, THE READ-IN UNIT SWITCH IN THE ^^RH10\\ SHOULD
POINT AT AN EVEN NUMBERED UNIT FOR ^^HRI\\ TO SUCCEED. ^SIMILARLY, 
IF THE ^^DF10C\\ IS SWITCHED TO ^K^I MODE, AN ODD NUMBERED UNIT SHOULD
BE SELECTED BY THE READ-IN UNIT SWITCH IN THE ^^RH10\\.
.B 3
2.0##^^EXTERNAL CHANGES\\
.B 1
^^RP04\\'S ARE NOW SUPPORTED. ^SEE WARNINGS IN THE SUMMARY ABOVE.
.B 3
3.0##^^KNOWN BUGS AND DEFICIENCIES\\
.B 1
^NONE.
.B3
4.0##^^INSTALLATION INSTRUCTION\\
.B 1
^VERSION 17 OF ^^BOOTS\\ IS REQUIRED AND THE PARAMATER ^^FTFHD\\==0
MUST BE DEFINED IN ^^BOOTS\\ TO ACHIEVE ^^RP04\\ SUPPORT. ^SEE ^^BTS17.DOC\\
AND ^^WTBOOT.CTL\\.
.B 3
5.0##^^INTERNAL CHANGES\\
.B 1
^NONE BEYOND THOSE REQUIRED FOR ^^RP04\\ SUPPORT.
.B 3
[^END OF ^^WTB3.DOC\\]
.B 1
[^^WTBOOT.RNO\\ IS APPENDED AS AN INTEGRAL PART OF ^^WTB3.DOC\\]
.TITLE ^^WTBOOT.RNO\\
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^^WTBOOT.RNO\\ -- (^ORIGINALLY PART OF 5.03 RELEASE)
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^MAY 1971
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^^WTBOOT\\ WRITES ^^BOOTS\\, A DISK BOOTSTRAP LOADER PROGRAM, ON BLOCKS
4 THROUGH 7 OF ALL DISK PACKS IN THE SYSTEM. ^THE USER RUNS
^^WTBOOT\\ ONCE, THE FIRST TIME A 5.03 MONITOR IS BUILT.
^IT IS NECESSARY TO RUN ^^WTBOOT\\ AGAIN ONLY IF THE DISKS ARE
REFORMATTED. ^^BOOTS\\ MUST BE WRITTEN ON BLOCKS 4 THROUGH 7 OF
EACH DISK PACK IN ORDER FOR THE NEW CRASH PROCEDURE TO WORK.
^REFER TO THE CRASH PROCEDURE INSTRUCTIONS IN THE ^^CRASH.RNO\\ FILE.
.B 1
^TO RUN ^^WTBOOT\\ THE USER LOGS IN TO [1,2] AND TYPES
.B 1;.I 10
_.^^R WTBOOT
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\\TO WHICH THE SYSTEM RESPONDS
.B 1;.I 10
^^EXIT\\
.B 1
WHEN THE PROCEDURE IS COMPLETED.
.B 2
^^NOTE:##WTBOOT\\ WRITES ^^BOOTS\\ ONLY ON DISK PACKS THAT ARE ON-LINE,
IN THE USER'S FILE STRUCTURE, AND NOT WRITE-LOCKED. ^FOR MORE INFORMATION
ON ^^BOOTS\\, OR ON LOADING ^^BOOTS\\ WITH A PAPER TAPE, REFER TO THE
DOCUMENT ENTITLED ^^BOOTS\\, IN THE ^^PDP-10 S\\OFTWARE ^NOTEBOOK.
.B 2
[^END OF ^^WTBOOT.RNO\\]
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