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1993-12-21
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This document is for users who are using the versions 37.10 or
greater of 68040.library.
A4000 or A3640 Card owners should see the MAPROM option in the
main document.
PLEASE CHECK WHICH VERSION YOU ARE USING, AND IF YOU ARE USING
37.10 OR GREATER YOU MUST FOLLOW THE DIRECTIONS BELOW OR THE
PROGRAM WILL NOT WORK!!
IF YOU DO NOT KNOW HOW TO CHECK THE VERSION OF THE LIBRARY,
USE THE COMMODORE 'VERSION' COMMAND. (EG. version libs:68040.library)
V2.1+ of Set040 was done especially for these new versions of
the library. These new libraries are making use the MMU and
this makes the function of Set040 much more difficult. The
rest of this document will explain the differences when Set040
and the new 68040.library are present and the changes you must
make to your startup-sequence in order for the two to work.
Set040 will refuse to install itself if the MMU is already in
use, this means that the normal method of usage, as described
in the Set040 document file will no longer work, because when
Setpatch installs 68040.library the MMU will be replaced.
You must change your startup-sequence so that the Commodore
Setpatch command comes *AFTER* the Set040 entries.
EXAMPLE
-------
; $VER: startup-sequence 39.9 (9.8.92)
C:Version >NIL:
C:AddBuffers >NIL: DF0: 15
FailAt 21
set040 >nil: kickrom
set040 >nil: fastrom reverse reset noclick
C:SetPatch QUIET
....
Commodore has written the 68040.library to be compatible with
Set040 if used this way. It will make sure that the current
location of the kickstart is the same when the new MMU tables
become active.
The Setpatchpatch program of mine is no longer required, as the
new 68040.library takes care of the patches that used to be done
by this program.
The reset handler had to be changed in order to work. When the
new library took over the MMU, Set040's tables are replaced. The
reset handler keeps a note of where the tables are, and replaces
them upon a reset, and completely re-installs the Set040 setup.
This allows the Kickstart to survive the reboot as it always did.
The startup-sequence 'setpatch' entry will once again replace the
Set040 setup and this process will continue each boot.
The 'FULLMAP' option of Set040 becomes rather redundant, as the
new library sets up its own entire mapping, and only copies the
Kickstart location. You can of course still do the 'NOCLICK' patch
as shown in the above example.
The 'VERBOSE' option of Set040 will currently show ALIENMMU and
not show any more info. In the next version I will change this
so that is will show the setup of 68040.library's installation.