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- Short: MMU protect free memory. Source included.
- Author: Børge Nøst <bnost@online.no>
- Uploader: bnost@online.no
- Type: dev/debug
- Replaces: dev/debug/GAngelRmx.lha
- Requires: 3.0/3.1, 68040/68060, Enforcer/CyberGuard.
-
- Version 1.1 now complete with source.
- Works for me (buyer beware)!
-
-
- Full program name: Guardian Angel Remix (short: GAR).
-
- This program will protect all _free_ pages in memory (not to be confused with
- free chunks).
- It requires a 68040 or 68060 (68851/68030 work started, but I have a bug
- somewhere that I can't find, and I have no machine to debug that on) with MMU
- and KickStart 3.0/3.1 (versions prior to these will not work - sorry), and
- also needs SetPatch and Enforcer/CyberGuard to be run before it is started.
- Only works with 4K(68040/68060) page size (source uses 1K size for 68030).
-
- This version will not function properly if you quit Enforcer after GAR has
- been started. (Your machine will crash if you do.)
- (In short: Start SetPatch, start Enforcer, start GAR.)
-
- To test that it is working you can use a monitor (like Amiga Monitor 1.65 by
- Timo Rossi - get it from AmiNet) and do a little memory dump to screen from
- an address you know to be free. You should now get Enforcer hits that says
- memory was read at somesuch address.
-
- If a program reads or writes to pages in memory that are completely free you
- will get a hit message from Enforcer.
-
- DO NOT RUN MUNGWALL BEFORE GUARDIAN ANGEL REMIX! (Run it after. GAR will not
- start if Mungwall is running.)
-
- There are two versions included in this archive. I had problems getting
- 'avail free' to work, but a patch to UnLoadSeg() seems to have fixed it.
- You might want to try both versions if RemLibrary()/RemDevice() hangs your
- machine.
-
- Hope you find this utility useful.
-
-
- You should use 'spatch' to patch Mungwall and Mungwall.par version 37.71.
- These patches prevent Mungwall from filling free memory when it is first
- started (remember, GAR is already protecting this). When you apply these
- patches Mungwall 37.71 will work fine together with GAR.
-
- You can use the "FlushAngel" program to turn off the protection. Note that
- some memory will not be freed if you do this. It might also fail depending
- on what patches have been installed in your system. You will have to quit
- Mungwall to make this work.
-
-
- New in version 1.1:
- Small speed optimisation. No extra work is done if the allocation starts and
- stops inside a page that is already allocated in part.
- Fixed bug that froze "avail flush" (freeing libraries and devices didn't work),
- and probably got a little faster by this.
- Patch files for Mungwall supplied.
- MungMem versions removed.
- "FlushAngel" added.
- Non-working 68030/68851 version embedded in the source (but a little rough so
- far).
- Source included.
-
-
- ============================= Archive contents =============================
-
- Original Packed Ratio Date Time Name
- -------- ------- ----- --------- -------- -------------
- 4560 3187 30.1% 11-Feb-98 01:05:34 +GuardianAngelRemix
- 5076 3506 30.9% 11-Feb-98 01:05:36 +GuardianAngelRemix
- 640 514 19.6% 11-Feb-98 01:05:38 +FlushAngel
- 140 138 1.4% 11-Feb-98 01:05:32 +Mungwall.par.pch
- 132 131 0.7% 11-Feb-98 01:05:32 +Mungwall.pch
- 2747 1407 48.7% 11-Feb-98 01:05:32 +README
- 493 303 38.5% 11-Feb-98 01:05:32 +README.source
- 77886 20982 73.0% 11-Feb-98 01:05:32 +Angel.s
- 3761 1538 59.1% 11-Feb-98 01:05:32 +FlushAngel.s
- 13775 3682 73.2% 11-Feb-98 01:05:32 +macros
- -------- ------- ----- --------- --------
- 109210 35388 67.5% 12-Feb-98 23:26:34 10 files
-