NOTE: This is the "Developer Distribution" of the mmu.library. The user
distribution is in the "MMULib" archive and is required, too.
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Release 47.2.1
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Thanks to Stefan Haubenthal for finding some typos in the
manual, they have been fixed in this version. No other
technical changes.
Release 47.2
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Reworked and polished the chapter about indirect descriptors,
cleaned up and improved the language.
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This archive contains a "RKRM style" documentation of the mmu.library,
describing its functions and its purposes. It contains various program
examples and gives the basic insight into the library mechanisms.
The manual is included in "dvi" and "postscript" form, you need either a
postscript printer (most recent laser printers include a postscript
interpreter), a postscript interpreter like "ghostscript" from the Aminet,
or a recent TeX installation to print the "dvi" file itself. The latter
requires the installation of the relatively new "ec" fonts which can be
found at the CTAN servers, e.g. ftp.dante.de.
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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.
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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
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So long,
Thomas (March 2022)
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