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FILCOM.DOC -- Changes from V21A(55) to V21C(75)
November 1983






























COPYRIGHT (C) 1973,1978,1979,1984 BY
DIGITAL EQUIPMENT CORPORATION, MAYNARD, MASS.


THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND  COPIED
ONLY  IN  ACCORDANCE  WITH  THE  TERMS  OF  SUCH  LICENSE AND 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.  NO TITLE TO AND OWNERSHIP OF  THE  SOFTWARE  IS  HEREBY
TRANSFERRED.

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

DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR  RELIABILITY  OF  ITS
SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY DIGITAL.

FLM21C.DOC                                                      Page 2


FILCOM.DOC -- Changes from V21A(55) to V21C(75)
November 1983



1.0  SUMMARY

This is a combination of a maintenance  release  of  FILCOM  with  the
added  support of big buffers.  This release will run on all supported
monitors.

This release of FILCOM has been designated as version 21C  because  an
interim maintenance release was shipped to TOPS20 sites.



2.0  EXTERNAL CHANGES

Files with the extensions of UNV, OVL, ATR, DBS, QUD,  SCH,  APL,  and
SYM now default to a binary compare instead of ASCII.

More  comprehensive  error  messages  have  been  added  for   command
decoding.  They are:

?Command error -- Unknown switch x
where x is a character.

?Command error -- Double filename illegal

?Command error -- Double extension illegal



3.0  KNOWN BUGS AND DEFICIENCIES

None.



4.0  INSTALLATION INSTRUCTIONS

There are no changes in the installation instructions.



5.0  INTERNAL CHANGES

None.
Edit #

56     EXE files were always being expanded,  even  if  /W  was  used.
       Also, handle EXE files generated by TOPS20.  SPR 10-26742.

57     Always  stop  comparing   binary   files   as   soon   as   the
       user-specified upper limit is reached.

FLM21C.DOC                                                      Page 3


60     Fix a bug that caused extra differences  to  be  reported  when
       comparing EXE files.

61     Make FILCOM recognize the extension UNV and  use  word  compare
       instead of the ASCII line compare.

62     Make the year in the header line of the output standard  format
       (i.e.  YY not YYYY).

63     Accept memory location greater than 777777 and print it in  the
       full  word instead of regular halfword typeout also jump to the
       new page first time to help readability

64     Deleted by edit 70.

65     Deleted by edit 71.

66     Deleted by edit 70.

67     Fix off by one bug which will make two  .EXE  files  which  are
       identical except for the directories appear very different.

70     Delete edits 64 and 66.

71     Delete edit 65;  it broke command processing  if  a  switch  is
       specified  first.   Fix  the  original  problem  which  allowed
       switches to be typed in the middle of a  filename.   This  edit
       also  reports  if  an unknown switch has been typed and if more
       than one filename or extension has been typed.  Therefore, some
       previously successful commands may now produce an error message
       and terminate the process.

72     Add a .REQUEST HELPER so loading isn't special cased.

73     Make FILCOM recognize the extensions ATR, DBS, QUD,  SCH,  APL,
       OVL, and SYM to use word compare instead of ASCII.

74     Search UUOSYM and MACTEN.  Then add big buffer open bit.   Also
       clean up listing a bit for readability.

75     Extend edit 71 to report an error  if  a  double  extension  is
       typed,  (TT:=FOO.BAR.BAR,FOO.BAR).   FILCOM  LOOKUPed  the file
       BAR.BAR.



6.0  SUGGESTIONS

None.



[END OF <FLM21C.DOC]