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MMULib.lha
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2001-03-27
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Short: Library to ctrl the MC68K MMUs
Uploader: thor@math.tu-berlin.de (Thomas Richter)
Author: thor@math.tu-berlin.de (Thomas Richter)
Type: util/libs
Requires: Os 2.04, a 68020/68851, 68030, 68040 or 68060 with a working MMU
Version: 42.6
-----------------------------------------------------------------------------
News flash: New VMM aware 68060.library included now.
-----------------------------------------------------------------------------
NOTE: The developer information went now into the "MuManual" archive, this
is the "user only" distribution.
-----------------------------------------------------------------------------
Purpose and goal of this library:
The mmu.library is a basis for MMU (memory management) related functions the
MC68K family can perform. Up to now certain hacks are available that program
the MMU themselves (Enforcer,CyberGuard,GuardianAngle,SetCPU,Shapeshifter,
VMM,GigaMem...).
It's therefore not unexpected that these tools conflict with each other.
There's up to now no Os support for the MMU at all - the gap this mmu.library
fills.
The goal is to provide a basis of functions to address and program the MMU in
a hardware independent, Os friendly fashion. Hence, the new version of the
Enforcer, called MuForce, will work together with virtual memory, and others.
The mmu.library is also the basis for a virtual memory project, the
memory.library. Even though the mmu.library does not provide virtual memory
itself, it builds the basics to allow an easy implementation and to avoid the
hacks required by other implementations so far.
------------------------------------------------------------------------------
Release 42.6
---------------
- mmu.library: Fixed some very rare problems on access errors of
pre-decrement movems for both the 68040 and the 68060.
- MuMove4k: The PREPAREEMUL (without the A1200 switch) option was
broken and might have caused crashes on a reboot. MuMove4K
installs now itself into MEMF_KICK and no longer MEMF_CHIP. If
this causes problems on your machine, try the INCHIPMEM option.
- MuFastZero: If ExecBase was remapped by means of the FastExec
option, installation of reset-proof programs behind MuFastZero
failed since these programs installed only into the non-resident
copy of ExecBase. MuFastZero includes now a patch to SumKickData()
which will avoid this problems.
- MuForce: MuForce installed an interrupt handler directly into
the autovector base which is not very system friendly. Fixed by
using the official interrupt handler. If MuForce crashes on exit,
disable your favourite "SaferPatches" clone and either avoid these
tools, or get "TRSaferPatches.lha" from Aminet.
- MuGuardianAngel: Supports now some not yet available memory pool
enhancement patches.
- P5Init: Fixed a potentially dangerous unaligned CopyMemQuick().
- A new MuLib based, tested and VMM aware 68060.library is now
available.
- Included a new tool, MuProtectModules. This will write-protect
resident modules loaded by "LoadModule". (See Aminet).
- MuEVD: Forgot an ATC table flush, result might have been partial
display gliches caused by erraneously dropped refresh cycles.
------------------------------------------------------------------------------
The THOR-Software Licence (v2, 24th June 1998)
This License applies to the computer programs known as the "mmu.library"
and its sources. The "Program", below, refers to such program. The
"Archive" refers to the package of distribution, as prepared by the author
of the Program, Thomas Richter. Each licensee is addressed as "you".
The Program and the data in the archive are freely distributable
under the restrictions stated below, but are also Copyright (c)
Thomas Richter.
Distribution of the Program, the Archive and the data in the Archive by a
commercial organization without written permission from the author to any
third party is prohibited if any payment is made in connection with such
distribution, whether directly (as in payment for a copy of the Program) or
indirectly (as in payment for some service related to the Program, or
payment for some product or service that includes a copy of the Program
"without charge"; these are only examples, and not an exhaustive enumeration
of prohibited activities).
However, the following methods of distribution
involving payment shall not in and of themselves be a violation of this
restriction:
(i) Posting the Program on a public access information storage and
retrieval service for which a fee is received for retrieving information
(such as an on-line service), provided that the fee is not
content-dependent (i.e., the fee would be the same for retrieving the same
volume of information consisting of random data).
(ii) Distributing the Program on a CD-ROM, provided that
a) the Archive is reproduced entirely and verbatim on such CD-ROM, including
especially this licence agreement;
b) the CD-ROM is made available to the public for a nominal fee only,
c) a copy of the CD is made available to the author for free except for
shipment costs, and
d) provided further that all information on such CD-ROM is redistributable
for non-commercial purposes without charge.
Redistribution of a modified version of the Archive, the Program or the
contents of the Archive is prohibited in any way, by any organization,
regardless whether commercial or non-commercial. Everything must be kept
together, in original and unmodified form.
Limitations.
THE PROGRAM IS PROVIDED TO YOU "AS IS", WITHOUT WARRANTY. THERE IS NO
WARRANTY FOR THE PROGRAM, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. THE ENTIRE
RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD
THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY
SERVICING, REPAIR OR CORRECTION.
IF YOU DO NOT ACCEPT THIS LICENCE, YOU MUST DELETE THE PROGRAM, THE ARCHIVE
AND ALL DATA OF THIS ARCHIVE FROM YOUR STORAGE SYSTEM. YOU ACCEPT THIS
LICENCE BY USING OR REDISTRIBUTING THE PROGRAM.
Thomas Richter
-----------------------------------------------------------------------------
So long,
Thomas (March 2001)