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.TITLE ^^LOADER.DOC#-#CHANGES FROM VERSION 56A TO 57\\
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.SUBTITLE ^JUNE, 1973
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^^LOADER.DOC#-#CHANGES FROM VERSION 56A TO 57
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\\^JUNE, 1973
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^^COPYRIGHT 1973, DIGITAL EQUIPMENT CORP., MAYNARD, MASS.\\
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1.0	^^SUMMARY\\
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.PARAGRAPH
^THE REASONS FOR THIS RELEASE ARE:-
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A)#^TO SUPPORT ^^FORTRAN-10\\
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B)#^TO FIX OUTSTANDING BUGS.
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C)#^TO INCLUDE ^^TENEX\\ CODE (NOT SUPPORTED)
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.PARAGRAPH
^^LOADER\\ VERSION 57 IS VERSION 56^A WITH EDITS _#127 THROUGH _#151 INCLUSIVE.
^THIS VERSION HAS NO KNOWN DEFICIENCIES AND FULLY REPLACES VERSION 56^A.
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^^LOADER\\ IS DOCUMENTED IN THE SOFTWARE NOTEBOOK VOL. _#6.
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2.0	^^EXTERNAL CHANGES\\
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.LEFT MARGIN 8
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_#127###^^SPR\\ 8583
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^^MONLOD\\ ONLY
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^^MONLOD\\ IGNORES [^^PPN\\] FOR ^^.XPN\\ FILE.
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^FIX: ^USE ^^[PPN]\\ IF GIVEN.
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.INDENT -7
_#131###^^DMN\\
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^IT IS NOT POSSIBLE TO LOAD CODE GENERATED BY ^^FORTRAN-10\\ WITH THAT
 GENERATED BY ^^F40\\.
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^FIX: ^TEST FOR THIS AND OUTPUT
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^^?CANNOT LOAD BOTH F40 AND FORTRAN-10 COMPILED CODE\\
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.INDENT -7
_#134###^^SPR\\ 9293
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^NO MESSAGE GIVEN IF ^^ALGOL\\ STAND-ALONE PROCEDURE LOADED WITHOUT
 ^^ALGOL\\ MAIN PROGRAN.
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^FIX: ^OUTPUT MESSAGE
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^^?ALGOL MAIN PROGRAM NOT LOADED\\
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.INDENT -7
_#135###^^DMN\\
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^IT IS NOT POSSIBLE TO LOAD ^^FORTRAN-10\\ CODE GENERATED FOR ^^KA10\\
 WITH THAT FOR ^^KI10\\
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^FIX: ^TEST FOR THIS AND OUTPUT MESSAGE
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^^?CANNOT MIX KA-10 AND KI-10 FORTRAN-10 COMPILED CODE\\
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.INDENT -7
_#142###^^DMN\\
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^^FORTRAN-10\\\ NEEDS TO BE ABLE TO PRODUCE TWO SEGMENT CODE
 TO LOAD IN ONE SEGMENT, BUT THE LENGTH OF THE HIGH SEGMENT IS NOT KNOWN IN TIME.
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^FIX, OUTPUT THE ORIGIN AND LENGTH OF THE LOW SEGMENT AS AN OPTIONAL
 SECOND WORD OF BLOCK TYPE 3.
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.INDENT -7
_#143###^^SPR 9625\\
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^PROGRAMS  THAT ARE AN EXACT MULTIPLE OF 1K END UP WITH A HIGH SEGMENT 1K
 TOO SMALL IN SOME CASES.
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^FIX, ADD MORE CODE AT ^^REMAP\\ UUO.
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.INDENT -7
_#144###^^SPR 9634\\
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^SUPPRESSED SYMBOLS REAPPEAR.
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^FIX, CORRECT BAD EDIT IN 56^A.
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.INDENT -7
_#145###^^DMN\\
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^MAKE ^^FOROTS\\ THE DEFAULT ^FORTRAN OBJECT TIME SYSTEM BY SETTING
 ASSEMBLY SWITCH ^^FORSW==2\\.
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.INDENT -7
_#150###^^DMN\\
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^USERS WOULD LIKE REENTRANT ^^FOROTS\\ TO BE THE DEFAULT WITH  ^^FORTRAN-10\\
 GENERATED CODE. ^THE PROBLEM IS THAN ^^FORTRAN-10\\ GENERATES TWO-SEGMENT
 CODE.
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^FIX, IF NONE OF THE FOLLOWING ARE TRUE, FORCE THE TWO-SEGMENT
 CODE INTO THE LOW SEGMENT:
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^NON-REENTRANT OBJECT TIME SYSTEM REQUESTED (/-^V)
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^FORCED HIGH SEGMENT CODE (/1^H)
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^ANY CODE ALREADY IN THE HIGH SEGMENT.
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.PAGE
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3.0	^^KNOWN BUGS AND DEFICIENCIES\\
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^NO KNOWN BUGS OR DEFICIENCIES ARE IN VERSION 57
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^^LOADER\\ DOES NOT YET CONFORM TO THE ^^DATE 75\\ STANDARD.
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4.0	^^CHANGES IN INSTALLATION INSTRUCTIONS\\
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^THE INSTALLATION GUIDE IS ^^LOADER.CTL\\.
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^WHICH USES ^^MACRO.CTL\\
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^THERE ARE NO CHANGES  IN INSTALLATION INSTRUCTIONS.
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^^NOTE\\, ^^LOADER\\ 57 USES ^^FOROTS\\ AS THE DEFAULT ^^FORTRAN OTS\\.
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.INDENT -8
5.0	^^INTERNAL CHANGES\\
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.INDENT -7
_#130###^^DMN\\
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^^FORTRAN-10\\ NEEDS POLISH BLOCK (TYPE 11) TO CALCULATE OFFSETS TO SOME
 ARRAYS (WHERE THE ADDRESS OF THE ARRAY PLUS OFFSET LOOKS LIKE IT WOULD
 BE IN THE WRONG SEGMENT).
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^FIX: ^TURN ON SWITCH ^^B11SW\\ WHICH ASSEMBLES BLOCK TYPE 11 CODE.
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.INDENT -7
_#132###^^DMN\\
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^^COMMON\\ ALLOCATION (BLOCK TYPE 20) IN A TWO SEGMENT PROGRAM RELOCATES
 TO WRONG SEGMENT.
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^FIX: ^TEST FOR HIGH SEGMENT AND RELOCATE TO LOW SEGMENT.
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.INDENT -7
_#133###^^DMN\\
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^BLOCK TYPE 21 FAILS.
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^FIX: ^ADD MISSING CODE.
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.INDENT -7
_#136###^^BBN\\
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^ADD CODE UNDER ^^IFN TENEX\\ TO ASSEMBLE VERSION OF LOADER TO RUN
 UNDER ^^TENEX\\. ^THE ^^TENEX\\ SWITCH IS SET ZERO IN THE ^^DEC\\
 OFFICIAL LOADER.
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.INDENT -7
_#137###^^DMN\\
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^FIX _#135 FOR ^^FORTRAN-10 KA/KI\\ CODE.
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_#140###^^DMN\\
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^FIX BUG IN BLOCK TYPE 21 IF SYMBOL IS COMMON.
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_#141###^^DMN\\
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^MORE FIXES FOR _#135
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_#146###^^DMN\\
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^MORE FIXES FOR _#142
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_#147###^^SPR\\ 10378
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^FIXES FOR ^LISP (^L=1) CODE.
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_#151###^^DMN\\
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 ^FIX BUG IN _#150
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^^[END OF LOADER.DOC]\\