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FLX17.DOC -- Changes from V16 to V17(52)
COPYRIGHT (C) 1974,1978,1979 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
THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT
DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS
SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY DIGITAL.
FLX17.DOC Page 2
This release supports .EXE format save files for the 6.02 monitor
release. It also reworks the /R logic to enable more consistent
operation. The command scanning is standardized including support for
SFD's and default project and programmer numbers. The sources have
been cleaned up and rearranged into many subroutines. FILEX is now
This release runs on all monitors since 5.04 and has been tested on
5.07 and 6.02. It fully supersedes all previous versions. It answers
all SPR's received before June, 1975.
FILEX is documented in Software Notebook 9.
2.0 EXTERNAL CHANGES
3.0 KNOWN BUGS AND DEFICIENCIES
4.0 INSTALLATION INSTRUCTIONS
Compile with C.UNV and JOBDAT.UNV on UNV: and load with HELPER.REL on
REL:. Ssave as a sharable program and place FILEX.SHR on SYS:
together with FILEX.HLP on HLP:. Remove the old FILEX.SAV.
5.0 INTERNAL CHANGES
11 Remove the special logic which put a special set of protections
on files being written to SYS:, since this logic has been in
the monitor since 5.03.
12 Rework the /R logic so that the DECtape need not be mounted.
This does not change the specification.
13 Internally, clean up the I/O logic to be consistent.
14 Convert the sources to use C.MAC.
15 Support /P and /R on the output DECtape. Both reuse the
scratch file unless there is also a /Z. /R suppresses the
final write to the tape. Thus, on output, /Q writes a scratch
FLX17.DOC Page 3
and copies it to tape; /P reuses an existing scratch and
writes it to tape; and /R reuses an existing scratch and saves
it for subsequent commands without accessing the tape. Note
that this edit together with 12 mean that /R does not touch the
16 Internally rework the /L logic to be easier to follow the code.
17 Drop the obsolete usage of _ and 175 and 176. Thus, commands
must be separated by =.
20 Make reentrant and call HELPER to print the help text. Make
the help text be a separate file instead of being built in.
21 Internally, reformat the sources with PGRFMT to be lined up
consistently. Convert all messages to be upper and lower case.
22 Change the DEVPPN UUO to PATH. in order to support all the
23 Implement SFD's. Support missing project or programmer numbers
to default to the logged in directory. Allow < and > as
equivalent to [ and ].
24 Allow /Z even if no equal sign. Thus, to zero a tape, just
25 On output if /Q or if the .XFO file is absent, assume /Z by
26 If /R, use the device as the temporary file name and use .DTA
as the extension. Thus, the user can keep several pseudo
DECtapes in his disk area and reference them by name.
27 Make any device specified be the default on the remaining files
specified (input side only). Extend the syntax to allow a
second device in the same specification to be the scratch file
name if /Q or /R or /P.
30 Add support for .HGH, .SHR, and .EXE files. The compressed
file format is specified by /C as before with the extension
indicating which format. Thus, .EXE or .SHR or .HGH will force
the specified format; any other extension will force the old
compressed save file format. If converting from .EXE to .HGH
or .SHR, a .LOW file will also be created in exactly the case
that the monitor used to (namely if there is non-zero low seg
data after 140). If converting from .SHR or .HGH to .EXE, a
.LOW file will be read also if the monitor would have.
31 Support the device NUL:.
32 PDP-11 directories were listed wrong.
33 DTAX-/Q=A,B did write a zero tape but forgot to enter a zero
FLX17.DOC Page 4
34 DTAX:/Q/Z/L=A,B tries to list from a scratch file which no
longer exists use instead the real dectape.
35 DSK:=DTAX:/Q does no longer work as READBZ clobbers I/O status.
36 DTAX:/Q/L=FOO was broken for PDP10 files.
37 All ten to ten transfers with devices having different buffer
sizes do not work.
40 Change EXEFLG definition to a block 1 statement so no low
segment is created.
41 Conversion from SHR(HGH) & LOW to EXE format does not work when
the save files IOWDS do not fill up the last pages.
42 =DTA0:/L used to list only directory now it copies all the
files on the tape causing files to disappear.
43 DTA0:/L will list the directory of the dectape and after some
waiting a file DTA0 will be in the disk area. This was
introduced by Edit 42.
44 A.XPN=A.EXE the expanded file created was wrong. The first 20
locations are non zero causing grief to FILDDT e.g.
45 A.SAV=A.EXE did not work correctly.
46 A.EXE=A.SHR did not always work correctly.
47 The explicit specification of extensions on converting save
files is bothersome, therefore the following was done:
Conversion of save files can be done using the C switch and a
blank input extension. Old save file are files with extension
SHR HGH SAV or LOW (OEX). New save files have an extension
EXE. As LINK produces old save files the default conversion
mode is from old type save files to new type save files else an
explicit output extension must be used to force the conversion
type. Note no scratch output is accepted. Examples of the
various conversion commands are:
1 A.EXE=A/C Convert old format save file A to EXE format.
2 A=A/C If A is an old save file then convert it to
EXE. Format else if A is an EXE format file
ten transfer it to the old save file format.
3 A.OEX=A/C Convert A.EXE to old save file format.
4 *=*/C Convert all old save files to EXE format and
all EXE files for which no old save file
5 A:*=B:*/C If A EQL B then as (4) else convert all save
6 A:*.EXE=B:*/C Convert all old save format files.
7 A:*.OEX=B:*/C Convert all EXE files to old save file
FLX17.DOC Page 5
In case 2 a warning will be given if the extension implied by the
content of the EXE file differs from the specified one E.G. A.SHR=A/C
where A.HGH would be generated.
50 Conversion of SHR files to EXE files without a low segment
results in EXE files, which on a run result in " ILLEGAL MEMORY
51 Conversion of an EXE file to a compressed file can create a
file, which gives the error message "not a save file" when a
get of the save file is being done.
52 Files created by FILEX do not contain the creation time.
[End of FLX17.DOC]