upstream/0.4.5.1/RELEASE

Release notes for Gavare's eXperimental Emulator (GXemul), 0.4.5.1
==================================================================

Copyright (C) 2003-2007  Anders Gavare.


GXemul is an experimental instruction-level machine emulator. Several
emulation modes are available. In some modes, processors and surrounding
hardware components are emulated well enough to let unmodified operating
systems (e.g. NetBSD) run as if they were running on a real machine.

Processors (ARM, MIPS, PowerPC, and SuperH) are emulated using dynamic 
translation. Unlike some other dynamically translating emulators, GXemul 
does not need to generate native code, only a "runnable intermediate 
representation", and will thus run on any host architecture.

The documentation lists the machines and guest operating systems that can 
be regarded as "working" in GXemul. The best working guest operating 
systems are probably NetBSD/pmax and NetBSD/cats.


The changes between release 0.4.4.1 and 0.4.5 include, among other things:

    o)  Initial support for "disk overlays" has been implemented. This
        enables e.g. simple roll-back of emulated disk contents to a
        previous state.

    o)  Dyntrans bug fixes; code translations on physical addresses that
        were offset a multiple of 128 MB from each other could either
        cause weird bugs, or translation leaks (leading to unnecessary
        dyntrans cache overflows).

    o)  Some cleanup: The GDB debugging stub support, some dummy machine
        modes (TS7200, Walnut, PB1000, and Meshcube), and some dummy or
        experimental CPUs (RCA180x and Transputer) have been removed, to
        make the emulator slightly more maintainable.

The changes between release 0.4.5 and 0.4.5.1 include, among other things:

    o)  OpenBSD/landisk has now had its first release (4.1, 2007-05-01).
        Landisk emulation is now stable enough to allow OpenBSD/landisk
        to be installed onto a disk image, and run from it.

    o)  Finally found and fixed an old bug in the address to symbol name
        lookup mechanism, which caused some symbols to be missed. Debug
        output with -t or -i should now show all symbols.

Please read the HISTORY file for more details.


Files included in this release are:

  HISTORY                     Detailed revision history / changelog.
  LICENSE                     Copyright message / license.
  README                      Quick start instructions, for the impatient.
  RELEASE                     This file.
  TODO                        TODO notes.
  configure, Makefile.skel    sh and make scripts for building GXemul.
  demos                       Tutorial-like demos of testmachine functionality.
  doc                         Documentation.
  experiments                 Experimental code. (Usually not needed.)
  src                         Source code.

To build the emulator, run the configure script, and then run make. This 
should work on most Unix-like systems.


Regarding files in the src/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 grateful for the fact that these people have made their files
available for re-use, so regardless of legal requirements, 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 Fogelström.

    This product includes software developed by Per Fogelström.

    This product includes software developed at Ludd, University of
    Luleå, 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.

    This product includes software developed by Marc Horowitz.

    This product includes software developed by Brini.

    This product includes software developed by Mark Brinicombe
    for the NetBSD Project.

    This product includes software developed by TooLs GmbH.

    This product includes software developed by Manuel Bouyer.

    This product includes software developed by the Alice Group.

    This product includes software developed by Ichiro FUKUHARA.

    This product includes software developed by Marcus Comstedt.

    This product includes software developed by Bill Paul.

Also, src/include/alpha_rpb.h requires the following:

    Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
    All rights reserved.

    Author: Keith Bostic, Chris G. Demetriou

    Permission to use, copy, modify and distribute this software and
    its documentation is hereby granted, provided that both the copyright
    notice and this permission notice appear in all copies of the
    software, derivative works or modified versions, and any portions
    thereof, and that both notices appear in supporting documentation.

See individual files for license details, if you plan to redistribute GXemul
or reuse code.


If you have found GXemul useful in some way, or feel like sending me comments
or feedback in general, then mail me at anders(At)gavare.se.

1	dpavlin	40	Release notes for Gavare's eXperimental Emulator (GXemul), 0.4.5.1
2			==================================================================
3	dpavlin	2
4	dpavlin	34	Copyright (C) 2003-2007 Anders Gavare.
5	dpavlin	2
6
7	dpavlin	14	GXemul is an experimental instruction-level machine emulator. Several
8			emulation modes are available. In some modes, processors and surrounding
9	dpavlin	12	hardware components are emulated well enough to let unmodified operating
10			systems (e.g. NetBSD) run as if they were running on a real machine.
11	dpavlin	2
12	dpavlin	40	Processors (ARM, MIPS, PowerPC, and SuperH) are emulated using dynamic
13	dpavlin	34	translation. Unlike some other dynamically translating emulators, GXemul
14			does not need to generate native code, only a "runnable intermediate
15			representation", and will thus run on any host architecture.
16
17	dpavlin	22	The documentation lists the machines and guest operating systems that can
18	dpavlin	28	be regarded as "working" in GXemul. The best working guest operating
19	dpavlin	34	systems are probably NetBSD/pmax and NetBSD/cats.
20	dpavlin	2
21	dpavlin	20
22	dpavlin	38	The changes between release 0.4.4.1 and 0.4.5 include, among other things:
23	dpavlin	12
24	dpavlin	38	o) Initial support for "disk overlays" has been implemented. This
25			enables e.g. simple roll-back of emulated disk contents to a
26			previous state.
27	dpavlin	2
28	dpavlin	38	o) Dyntrans bug fixes; code translations on physical addresses that
29			were offset a multiple of 128 MB from each other could either
30			cause weird bugs, or translation leaks (leading to unnecessary
31			dyntrans cache overflows).
32	dpavlin	10
33	dpavlin	38	o) Some cleanup: The GDB debugging stub support, some dummy machine
34			modes (TS7200, Walnut, PB1000, and Meshcube), and some dummy or
35			experimental CPUs (RCA180x and Transputer) have been removed, to
36			make the emulator slightly more maintainable.
37	dpavlin	2
38	dpavlin	40	The changes between release 0.4.5 and 0.4.5.1 include, among other things:
39
40			o) OpenBSD/landisk has now had its first release (4.1, 2007-05-01).
41			Landisk emulation is now stable enough to allow OpenBSD/landisk
42			to be installed onto a disk image, and run from it.
43
44			o) Finally found and fixed an old bug in the address to symbol name
45			lookup mechanism, which caused some symbols to be missed. Debug
46			output with -t or -i should now show all symbols.
47
48	dpavlin	38	Please read the HISTORY file for more details.
49	dpavlin	2
50	dpavlin	36
51	dpavlin	2	Files included in this release are:
52
53			HISTORY Detailed revision history / changelog.
54			LICENSE Copyright message / license.
55			README Quick start instructions, for the impatient.
56			RELEASE This file.
57			TODO TODO notes.
58	dpavlin	4	configure, Makefile.skel sh and make scripts for building GXemul.
59	dpavlin	24	demos Tutorial-like demos of testmachine functionality.
60	dpavlin	2	doc Documentation.
61			experiments Experimental code. (Usually not needed.)
62	dpavlin	4	src Source code.
63	dpavlin	2
64	dpavlin	24	To build the emulator, run the configure script, and then run make. This
65	dpavlin	22	should work on most Unix-like systems.
66	dpavlin	2
67	dpavlin	24
68	dpavlin	4	Regarding files in the src/include/ directory: only some of these are written
69			by me, the rest are from other sources (such as NetBSD). The license text says
70	dpavlin	2	that "All advertising materials mentioning features or use of this software"
71			must display acknowledgements. Even though I do NOT feel I mention features or
72			use of the header files (the "software") in any advertising materials, I am
73			still very grateful for the fact that these people have made their files
74			available for re-use, so regardless of legal requirements, I guess thanking
75			them like this is in order:
76
77			This product includes software developed by the University of
78			California, Berkeley and its contributors.
79
80			This product includes software developed for the
81			NetBSD Project. See http://www.netbsd.org/ for
82			information about NetBSD.
83
84			This product includes software developed by Jonathan Stone for
85			the NetBSD Project.
86
87			This product includes software developed for the NetBSD Project
88			by Matthias Drochner.
89
90			This product includes software developed by the NetBSD
91			Foundation, Inc. and its contributors.
92
93			This product includes software developed by Christopher G. Demetriou.
94			[for the NetBSD Project.]
95
96			This product includes software developed by Adam Glass.
97
98			This product includes software developed by the PocketBSD project
99			and its contributors.
100
101			This product includes software developed by Peter Galbavy.
102
103			Carnegie Mellon University (multiple header files,
104			no specific advertisement text required)
105
106			This product includes software developed by Charles M. Hannum.
107
108			This product includes software developed under OpenBSD by Per Fogelström.
109
110			This product includes software developed by Per Fogelström.
111
112			This product includes software developed at Ludd, University of
113			Luleå, Sweden and its contributors.
114
115			This product includes software developed by Hellmuth Michaelis
116			and Joerg Wunsch
117
118			The font(s) in devices/fonts are Copyright (c) 1992, 1993, 1994
119			by Hellmuth Michaelis and Joerg Wunsch. ("This product includes software
120			developed by Hellmuth Michaelis and Joerg Wunsch", well, the font
121			is maybe not software, but still...)
122
123			impactsr-bsd.h is Copyright (C) 2004 by Stanislaw Skowronek.
124
125			This product includes software developed for the NetBSD Project by
126			Wasabi Systems, Inc. [by Simon Burge]
127
128			arcbios_other.h is Copyright (c) 1996 M. Warner Losh.
129
130			This product includes software developed by Marc Horowitz.
131
132	dpavlin	14	This product includes software developed by Brini.
133
134			This product includes software developed by Mark Brinicombe
135			for the NetBSD Project.
136
137	dpavlin	20	This product includes software developed by TooLs GmbH.
138
139			This product includes software developed by Manuel Bouyer.
140
141	dpavlin	22	This product includes software developed by the Alice Group.
142
143	dpavlin	24	This product includes software developed by Ichiro FUKUHARA.
144
145	dpavlin	32	This product includes software developed by Marcus Comstedt.
146
147	dpavlin	40	This product includes software developed by Bill Paul.
148
149	dpavlin	12	Also, src/include/alpha_rpb.h requires the following:
150
151			Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
152			All rights reserved.
153
154			Author: Keith Bostic, Chris G. Demetriou
155
156			Permission to use, copy, modify and distribute this software and
157			its documentation is hereby granted, provided that both the copyright
158			notice and this permission notice appear in all copies of the
159			software, derivative works or modified versions, and any portions
160			thereof, and that both notices appear in supporting documentation.
161
162	dpavlin	2	See individual files for license details, if you plan to redistribute GXemul
163			or reuse code.
164
165	dpavlin	24
166	dpavlin	2	If you have found GXemul useful in some way, or feel like sending me comments
167	dpavlin	38	or feedback in general, then mail me at anders(At)gavare.se.
168	dpavlin	2