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- ;*************************************************************************
- ;** MMU Configuration file **
- ;** **
- ;** this file is read on startup by the mmu.library and used to modify **
- ;** the pre-calculated or scanned MMU table **
- ;** **
- ;** © 1999-2000 THOR Software, Thomas Richter **
- ;*************************************************************************
-
-
- ; the current version of the MMU library knows four commands that can
- ; be used in this file:
- ; CLEARTTX clears all or parts of the transparent translation registers
- ; ADDMEM adds memory to the exec free list pool. BE WARNED, this command
- ; does NOT modify the MMU tables, this must be done by yourself
- ; SETCACHEMODE defines the MMU tables.
- ; DESCRIPTORCACHEINHIBIT defines whether the data cache should be disabled
- ; for the MMU descriptors. It's usually OFF meaning the cache will remain
- ; enabled. This is fine for the mmu.library, but certain hacks might require
- ; a ON argument here. Note that this means more work for the library.
- ;
- ; All other commands are currently "external". The library will scan for
- ; these commands in "LIBS:mmu" and execute them on startup. These *are not*
- ; standard shell commands. They cannot be run from the shell, and shell
- ; commands cannot be started from this file.
- ;
-
-
- ClearTTx ;ignore all TTX registers if any. We don't need them.
- ;this will speed up the system for some machines.
-
-
- ; Remove the semicolon in the line below if you have to live with other MMU
- ; hacks that expect the MMU descriptors in non-cacheable memory. This is by
- ; default OFF, i.e. descriptors will be cachable.
- ; The library will work fine and will take all precautions for descriptors
- ; in the cache, but some third-party hacks might not.
-
- ;DescriptorCacheInhibit ON
-
-
- ; Remove the semicolon in the line below in case you encounter hangs or
- ; crashes with Zorro-II 16-Bit memory. It will disable caching for the Z-II
- ; area. Clearly, this is slower, but it will work, at least.
-
- ;SetCacheMode from 0x00200000 size 0x00800000 CacheInhibit NonSerial Imprecise
-
- ; A more complete setup can be computed by the "BuildMMUConfig.rexx" script
- ; in the "Install" drawer of the mmu.library distribution which will even
- ; consider P5 hardware and optimizations for graphics cards.
- ; Special graphics card setup is not *required*, but might speed up graphics
- ; operations a little bit. It is further more not required for P96 which calls
- ; the mmu.library to optimize the MMU tables anyhow.
-
- ; The following line is required for P5 boards. If you own a P5 board, copy the
- ; file Install/P5Init to LIBS:mmu/P5Init and remove the semicolon from the next
- ; line:
-
- ;P5Init
-
- ; that's all folks!
-