Programmer 7500/MAX_PROGRAMMERS.iso/INFO/FILUTL/P22V12.ZIP/QEMM.P22

Text File | 1991-05-27 | 17.5 KB | 568 lines

;This patch command is based on the Quarterdeck Technical Notes given below.
;These Technical Notes were found in the files REALLOC.PAT and FUNC24.PAT
;
; QEMM386.sys is the name starting from version 5.10
;
qemm386.sys *1?\h7506010E?\hEB06010E?
qemm386.sys *1?\h8BCB0BDA74F0?\h8BCB0BDA7422?

;
; QEMM.sys is the name until version 5.0
;
qemm.sys    *1?\h7507010E?\hEB07010E?
qemm.sys    *1?\h8BCB0BDA74F0?\h8BCB0BDA7422?
;
;
;Here follow the instructions from Quarterdeck, which have been
;translated into the PATCH22 commands above
;
;============================================================================
;
;   Quarterdeck Technical Note (From the file: REALLOC.PAT)
;
;   Subject:  Patching QEMM-386 5.00, 5.10, 5.11, and
;   5.12 to resolve problems with programs that resize
;   EMS or XMS handles
;
;     Background: Starting with QEMM-386 5.00, QEMM-386
;   supports both the EMS (Expanded Memory
;   Specification), which governs access to expanded
;   memory, and the more recent XMS (Extended Memory
;   Specification), which governs access to extended
;   memory.  Requests for EMS and for XMS memory are
;   both filled from the same pool of QEMM-managed
;   memory, and EMS and XMS handles (numbers that the
;   memory manager returns to a program when the
;   program takes a chunk of memory, so that the
;   program can quickly identify the chunk when it next
;   communicates with the memory manager) are managed
;   together by QEMM-386.
;
;     Both EMS and XMS contain a call that programs can
;   make to reallocate blocks of memory; that is, to
;   take a handle that the program has already received
;   and increase or decrease the chunk of memory to
;   which the handle refers.  Users of QEMM-386
;   versions 5.00 through 5.12 may experience system
;   instability under certain circumstances when a
;   program makes an EMS or XMS call to increase the
;   size of a handle.  The symptom is likely to be a
;   system crash or a reboot.
;
;     Users of versions of QEMM-386 after version 5.12
;   should not experience this problem.  In the
;   meantime, QEMM-386 can be patched to eliminate the
;   problem.
;
;
;     The following procedure is intended to prevent
;   system crashes and reboots when Reallocate Memory
;   EMS and XMS functions are used to increase the size
;   of EMS and XMS handles.  This procedure is for use
;   with QEMM-386 versions:
;
;           5.10
;           5.11
;           5.12
;
;   ***************************************************
;
;     Do NOT use this patch for QEMM-386 5.0; a
;   separate procedure for QEMM-386 5.0 is later in
;   this technote.  If you are in doubt, go to the
;   directory where the QEMM-386 files are located and
;   check the date on the QEMM386.SYS file by issuing
;   the DOS command:
;
;             DIR QEMM386.SYS
;
;   If the date on the file is
;
;             5:10 am
;             5:11 am
;             5:12 am
;
;   then use the patch in this section. If there is no
;   QEMM386.SYS file in this directory, then you
;   probably have an earlier version of QEMM-386; go
;   forward to the section that deals with the patch
;   for QEMM-386 5.0.
;
;   ***************************************************
;
;     1) Make a copy of the QEMM386.SYS file in your
;   QEMM directory.  We are about to alter your current
;   copy of QEMM386.SYS; the copy you make will serve
;   as a backup in case this operation fails.
;
;         COPY C:\QEMM\QEMM386.SYS C:\QEMM\QEMM386.OLD
;
;     (If your QEMM386.SYS is not located in the QEMM
;   directory of the C: drive, change the path
;   accordingly.)
;
;     2) Go to the DOS directory on the hard disk and
;   type:
;
;       DEBUG C:\QEMM\QEMM386.SYS
;
;     (If your QEMM386.SYS is not located in the QEMM
;   directory of the C: drive, change the path
;   accordingly.)
;
;     Hit the Enter key; you should see the DEBUG
;   prompt, which is a hyphen.
;
;     3) At the DEBUG prompt, type:
;
;       S 100 L F000 75 6 1 0E
;
;     Hit the Enter key; DEBUG should return a segment
;   address and an offset:
;
;       xxxx:yyyy
;
;     4) At the DEBUG prompt again, use the segment
;   address and offset that was just returned to give
;   the DEBUG command:
;
;       E xxxx:yyyy EB
;
;     The address that DEBUG returned in step 3 should
;   be used in place of the address xxxx:yyyy, which we
;   use as an example.  Hit the Enter key; the DEBUG
;   prompt should return in a moment.
;
;
;     5) At the DEBUG prompt, type
;
;       W
;
;     Hit the Enter key; DEBUG will announce that it is
;   writing a certain number of bytes, then it will
;   return the DEBUG prompt.
;
;     6) At the DEBUG prompt, type
;
;       Q
;
;     Hit the Enter key to exit DEBUG and return to
;   DOS.
;
;     7) To double-check your patch, type the following
;   from the DOS prompt in your DOS directory:
;
;       COMP C:\QEMM\QEMM386.SYS C:\QEMM\QEMM386.OLD
;
;    (If your QEMM386.SYS is not located in the QEMM
;   directory of the C: drive, change the path
;   accordingly.)
;
;     Hit the Enter key.  COMP should return:
;
;
;                 C:QEMM386.SYS and C:QEMM386.OLD
;
;                 Compare error at OFFSET xxxx
;                 File 1 = EB
;
;                 File 2 = 75
;
;                 Eof mark not found
;
;                 Compare more files (Y/N)?
;
;     The value xxxx after OFFSET will vary from
;   version to version of QEMM 5.1, but the rest of the
;   message should be the same: it tells us that
;   there is exactly one byte difference between the
;   files, and the differing byte is EB in QEMM386.SYS
;   and 75 in QEMM386.OLD.  If COMP returns the
;   message:
;
;                 Files compare ok
;
;   ...then you probably failed to use DEBUG's W
;   command to save your change, or you have compared
;   the wrong files.  If COMP returns more than one
;   compare error, or if the bytes returned by the
;   compare error don't match those in the above
;   example, the procedure has failed.  In this case,
;   use the DOS command:
;
;       COPY C:\QEMM\QEMM386.OLD C:\QEMM\QEMM386.SYS
;
;   ... to restore the original file, and try again.
;
;   If the patch was successful, you should now reboot
;   the system and test the patched version of QEMM-
;   386.  If the patched version of QEMM-386 fails, see
;   the section at the end of the technote on restoring
;   your original copy.  Otherwise, you are finished
;   with the patch.
;
;
;   ---------------------------------------------------
;
;
;     The following procedure is intended to prevent
;   system crashes and reboots when Reallocate Memory
;   EMS and XMS functions are used to increase the size
;   of EMS and XMS handles with QEMM 5.00.
;
;
;   ***********************************************
;
;   This patch is for:
;
;            QEMM-386 5.00
;
;   A separate procedure for other versions appears
;   earlier in this technote.  If you are in doubt, go
;   to the directory where the QEMM-386 files are
;   located and check the date on the QEMM.SYS file by
;   issuing the DOS command:
;
;               DIR QEMM.SYS
;
;   If the date on the file is
;
;                5:00 am
;
;   then this patch is the one to use.  If there is no
;   QEMM.SYS file in this directory, then you probably
;   have a later version of QEMM-386; go back to the
;   section that deals with the patch for QEMM-386 5.1.
;
;   ***************************************************
;
;     1) Make a copy of the QEMM.SYS file in your QEMM
;   directory.  We are about to alter your current copy
;   of QEMM.SYS; the copy you make will serve as a
;   backup in case this operation fails.
;
;         COPY C:\QEMM\QEMM.SYS C:\QEMM\QEMM.OLD
;
;     (If your QEMM.SYS is not located in the QEMM
;   directory of the C: drive, change the path
;   accordingly.)
;
;     2) Go to the DOS directory on the hard disk and
;   type:
;
;       DEBUG C:\QEMM\QEMM.SYS
;
;     (If your QEMM.SYS is not located in the QEMM
;   directory of the C: drive, change the path
;   accordingly.)
;
;     Hit the Enter key; you should see the DEBUG
;   prompt, which is a hyphen.
;
;     3) At the DEBUG prompt, type:
;
;       S 100 L F000 75 7 1 0E
;
;     Hit the Enter key; DEBUG should return a segment
;   address and an offset:
;
;       xxxx:yyyy
;
;     4) At the DEBUG prompt again, use the segment
;   address and the offset that was just returned to
;   give the DEBUG command:
;
;       E xxxx:yyyy EB
;
;     The address that DEBUG returned in step 3 should
;   be used in place of the address xxxx:yyyy, which we
;   use as an example.  Hit the Enter key; the DEBUG
;   prompt should return in a moment.
;
;
;     5) At the DEBUG prompt, type
;
;       W
;
;     Hit the Enter key; DEBUG will announce that it is
;   writing a certain number of bytes, then it will
;   return the DEBUG prompt.
;
;     6) At the DEBUG prompt, type
;
;       Q
;
;     Hit the Enter key to exit DEBUG and return to
;   DOS.
;
;     7) To double-check your patch, type the following
;   from the DOS prompt in your DOS directory:
;
;       COMP C:\QEMM\QEMM.SYS C:\QEMM\QEMM.OLD
;
;    (If your QEMM.SYS is not located in the QEMM
;   directory of the C: drive, change the path
;   accordingly.)
;
;     Hit the Enter key.  COMP should return:
;
;
;                 C:QEMM.SYS and C:QEMM.OLD
;
;                 Compare error at OFFSET xxxx
;                 File 1 = EB
;
;                 File 2 = 75
;
;                 Eof mark not found
;
;                 Compare more files (Y/N)?
;
;     The value xxxx after OFFSET may vary, but the
;   rest of the message should be the same: it tells us
;   that there is exactly one byte difference between
;   the files, and the differing byte is EB in
;   QEMM.SYS and 75 in QEMM.OLD.  If COMP returns
;   the message:
;
;                 Files compare ok
;
;   ...then you probably failed to use DEBUG's W
;   command to save your change, or you have compared
;   the wrong files.  If COMP returns more than one
;   compare error, or if the bytes returned by the
;   compare error don't match those in the above
;   example, the procedure has failed.  In this case,
;   use the DOS command:
;
;       COPY C:\QEMM\QEMM.OLD C:\QEMM\QEMM.SYS
;
;   ... to restore the original file, and try again.
;
;   If the patch was successful, you should now reboot
;   the system and test the patched version of QEMM-
;   386.
;
;
;   --------------------------------------------------
;
;     If the system fails after you perform this patch,
;   you can follow the instructions in the
;   "Installation" section of your QEMM-386 manual to
;   recover without resorting to a boot floppy.  After
;   your system is booted successfully, copy the backup
;   of QEMM-386 that you made back to its original
;   name.  If you are using QEMM-386 5.00, use the
;   following DOS command:
;
;       COPY C:\QEMM\QEMM.OLD C:\QEMM\QEMM.SYS
;
;     If you have QEMM-386 5.1, use the following DOS
;   command instead:
;
;       COPY C:\QEMM\QEMM386.OLD C:\QEMM\QEMM386.SYS
;
;     (If your QEMM.SYS or QEMM386.SYS is not located
;   in the QEMM directory of the C: drive, change the
;   path accordingly.)
;
;     You may then wish to try the above procedure
;   again, in case a mistake was made.
;
;============================================================================
;
;   Quarterdeck Technical Note (From the file FUNC24.PAT)
;
;   Subject:  Patching QEMM-386 5.10, 5.11, and
;   5.12 to resolve problems with programs that make
;   EMS 4.0 calls to move or exchange zero-length
;   memory regions.
;
;     Background: The EMS (Expanded Memory
;   Specification) 4.0 provides a call (function 24)
;   which programs can make to move information from
;   one region of memory to another, or to exchange
;   information between two regions of memory.
;
;   Users of QEMM-386 versions 5.10 through 5.12 may
;   experience system instability when a program makes
;   the Function 24 EMS call to move or exchange a
;   region of memory that is zero bytes in length.  The
;   symptom is likely to be a system crash.  There is
;   no good reason to use Function 24 on a region of
;   length zero, but such a situation may occur when a
;   program uses the same subroutine to implement
;   Function 24 in a variety of different situations.
;
;     Users of versions of QEMM-386 after version 5.12
;   should not experience this problem.  In the
;   meantime, QEMM-386 can be patched to eliminate the
;   problem.
;
;     The following procedure is intended to prevent
;   system crashes when EMS 4.0 Function 24 is used to
;   move or exchange zero-length regions of memory
;   under QEMM-386.  This procedure is for use with
;   QEMM-386 versions:
;
;           5.10
;           5.11
;           5.12
;
;   ***************************************************
;
;     Do NOT use this patch for QEMM-386 5.0 or
;   earlier, or on any version of QEMM-386 later than
;   5.12.  If you are in doubt, go to the directory
;   where the QEMM-386 files are located and check the
;   date on the QEMM386.SYS file by issuing the DOS
;   command:
;
;             DIR QEMM386.SYS
;
;   If the date on the file is
;
;             5:10 am
;             5:11 am
;             5:12 am
;
;   then use the patch in this section. If there is no
;   QEMM386.SYS file in this directory, or if the date
;   on the file is later than 5:12 am, then you
;   probably have an earlier or later version of QEMM-
;   386, and this patch is not appropriate.
;
;   ***************************************************
;
;     1) Make a copy of the QEMM386.SYS file in your
;   QEMM directory.  We are about to alter your current
;   copy of QEMM386.SYS; the copy you make will serve
;   as a backup in case this operation fails.
;
;         COPY C:\QEMM\QEMM386.SYS C:\QEMM\QEMM386.OLD
;
;     (If your QEMM386.SYS is not located in the QEMM
;   directory of the C: drive, change the path
;   accordingly.)
;
;     2) Go to the DOS directory on the hard disk and
;   type:
;
;       DEBUG C:\QEMM\QEMM386.SYS
;
;     (If your QEMM386.SYS is not located in the QEMM
;   directory of the C: drive, change the path
;   accordingly.)
;
;     Hit the Enter key; you should see the DEBUG
;   prompt, which is a hyphen.
;
;     3) At the DEBUG prompt, type:
;
;       S 100 L F000 8B CB 0B DA 74 F0
;
;     Hit the Enter key; DEBUG should return a segment
;   address and an offset:
;
;       xxxx:yyyy
;
;     4) At the DEBUG prompt again, use the segment
;   address and offset that was just returned to give
;   the DEBUG command:
;
;       E xxxx:yyyy 8B CB 0B DA 74 22
;
;     The address that DEBUG returned in step 3 should
;   be used in place of the address xxxx:yyyy, which we
;   use as an example.  Hit the Enter key; the DEBUG
;   prompt should return in a moment.
;
;
;     5) At the DEBUG prompt, type
;
;       W
;
;     Hit the Enter key; DEBUG will announce that it is
;   writing a certain number of bytes, then it will
;   return the DEBUG prompt.
;
;     6) At the DEBUG prompt, type
;
;       Q
;
;     Hit the Enter key to exit DEBUG and return to
;   DOS.
;
;     7) To double-check your patch, type the following
;   from the DOS prompt in your DOS directory:
;
;       COMP C:\QEMM\QEMM386.SYS C:\QEMM\QEMM386.OLD
;
;    (If your QEMM386.SYS is not located in the QEMM
;   directory of the C: drive, change the path
;   accordingly.)
;
;     Hit the Enter key.  COMP should return:
;
;
;                 C:QEMM386.SYS and C:QEMM386.OLD
;
;                 Compare error at OFFSET xxxx
;                 File 1 = 22
;
;                 File 2 = F0
;
;                 Eof mark not found
;
;                 Compare more files (Y/N)?
;
;     The value xxxx after OFFSET will vary from
;   version to version of QEMM 5.1, but the rest of the
;   message should be the same: it tells us that
;   there is exactly one byte difference between the
;   files, and the differing byte is 22 in QEMM386.SYS
;   and F0 in QEMM386.OLD.  If COMP returns the
;   message:
;
;                 Files compare ok
;
;   ...then you probably failed to use DEBUG's W
;   command to save your change, or you have compared
;   the wrong files.  If COMP returns more than one
;   compare error, or if the bytes returned by the
;   compare error don't match those in the above
;   example, the procedure has failed.  In this case,
;   use the DOS command:
;
;       COPY C:\QEMM\QEMM386.OLD C:\QEMM\QEMM386.SYS
;
;   ... to restore the original file, and try again.
;
;
;   If the patch was successful, you should now reboot
;   the system and test the patched version of QEMM-
;   386.
;
;
;   --------------------------------------------------
;
;     If the system fails after you perform this patch,
;   you can follow the instructions in the
;   "Installation" section of your QEMM-386 manual to
;   recover without resorting to a boot floppy.  After
;   your system is booted successfully, copy the backup
;   of QEMM-386 that you made back to its original
;   name with the following DOS command:
;
;       COPY C:\QEMM\QEMM386.OLD C:\QEMM\QEMM386.SYS
;
;     (If your QEMM386.SYS is not located in the QEMM
;   directory of the C: drive, change the path
;   accordingly.)
;
;     You may then wish to try the above procedure
;   again, in case a mistake was made.
;
;  * * *   E N D   O F   F I L E    * * *
;============================================================================