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Release notes for mips64emul 0.2.4
==================================
Copyright (C) 2003-2005 Anders Gavare.
mips64emul is a free MIPS machine emulator. The goals are to emulate
MIPS-like CPUs and enough surrounding hardware to let unmodified operating
systems run as if they were running on a real machine, and to assist in
experiments involving MIPS-like code in general.
(MIPS is a registered trademark of MIPS Technologies. mips64emul is
developed as a spare-time hobby, and there is no affiliation with MIPS
Technologies in any way whatsoever.)
In its current form, it is possible to use the emulator to install an
operating systems onto a harddisk image; the "guest" operating system will run
similar to how it would run on a real physical machine.
The following guest operating systems have been verified to work:
Operating system Emulated machine
---------------- ----------------
NetBSD/pmax 2.0 (and 1.6.2) DECstation 5000/200
OpenBSD/pmax 2.8-BETA DECstation 5000/200
Ultrix 4.2-4.5 DECstation 5000/200
Sprite demo harddisk image DECstation 5000/200
Debian GNU/Linux for DECstation DECstation 5000/200 (*)
Redhat Linux 7.1 for mips DECstation 5000/200
NetBSD/arc 1.6.2 Acer PICA-61
OpenBSD/arc 2.3 Acer PICA-61
(*) = not very stable yet, but it sometimes works.
A couple of other emulation modes exist (for SGI's MIPS-based machines,
Playstation 2, Cobalt, some other ARC machines, etc) but these modes are more
of a curiosity, and should not be considered working yet.
Here is a short summary of the changes from version 0.2.3 to 0.2.4:
x) Debian GNU/Linux can now be installed. However, it is VERY
unstable, and Linux Oopses when there is heavy serial console
output. A '-U' command line option reduces the risk, but doesn't
fix the problem.
x) When emulating framebuffers for machines like the DECstation
5000/200, that have a hardware mouse cursor, the host machine's
X cursor is now invisible. (This might not sound like a very
exiting change, but it "feels" a lot better than before.)
x) Improvements to the experimental dynamic binary translation
subsystem.
x) Many improvements to the single-step debugger.
x) Various other bugfixes and updates.
This release has a number of known bugs, listed in the BUGS file, but feel
free to drop me an email regarding other bugs.
Files included in this release are:
BUGS A list of known bugs.
HISTORY Detailed revision history / changelog.
LICENSE Copyright message / license.
README Quick start instructions, for the impatient.
RELEASE This file.
TODO TODO notes.
doc Documentation.
experiments Experimental code (not usually needed).
src, devices, and include Source code.
tests Regression tests.
To build the emulator, run the ./configure script, and then run make.
Building the emulator should work on most Unix-like systems. (One system
which is specifically known to NOT work is Ultrix/RISC inside the
emulator; Ultrix chokes on the configure script and the default cc in
Ultrix doesn't work.)
Regarding files in the include/ directory: only some of these are
written by me, the rest are from other sources (such as NetBSD). The
license text says that "All advertising materials mentioning features or
use of this software" must display acknowledgements. Even though I do NOT
feel I mention features or use of the header files (the "software") in any
advertising materials, I am still very greatful for the fact that these
people have made their files available for re-use, so I guess thanking
them like this is in order:
This product includes software developed by the University of
California, Berkeley and its contributors.
This product includes software developed for the
NetBSD Project. See http://www.netbsd.org/ for
information about NetBSD.
This product includes software developed by Jonathan Stone for
the NetBSD Project.
This product includes software developed for the NetBSD Project
by Matthias Drochner.
This product includes software developed by the NetBSD
Foundation, Inc. and its contributors.
This product includes software developed by Christopher G. Demetriou.
[for the NetBSD Project.]
This product includes software developed by Adam Glass.
This product includes software developed by the PocketBSD project
and its contributors.
This product includes software developed by Peter Galbavy.
Carnegie Mellon University (multiple header files,
no specific advertisement text required)
This product includes software developed by Charles M. Hannum.
This product includes software developed under OpenBSD by Per Fogelstrm.
This product includes software developed by Per Fogelstrm.
This product includes software developed at Ludd, University of
Lule, Sweden and its contributors.
This product includes software developed by Hellmuth Michaelis
and Joerg Wunsch
The font(s) in devices/fonts are Copyright (c) 1992, 1993, 1994
by Hellmuth Michaelis and Joerg Wunsch. ("This product includes software
developed by Hellmuth Michaelis and Joerg Wunsch", well, the font
is maybe not software, but still...)
impactsr-bsd.h is Copyright (C) 2004 by Stanislaw Skowronek.
This product includes software developed for the NetBSD Project by
Wasabi Systems, Inc. [by Simon Burge]
arcbios_other.h is Copyright (c) 1996 M. Warner Losh.
See individual files for license details, if you plan to redistribute
mips64emul or reuse code.
And thanks to everyone who has provided me with feedback, ideas, patches,
or encouraged me to work on specific issues.
Don't hesitate to send feedback to me (Anders Gavare, anders(at)gavare.se)
if you have found mips64emul useful or if you have found a bug.
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