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Revision 10 - (show annotations)
Mon Oct 8 16:18:27 2007 UTC (13 years, 3 months ago) by dpavlin
File size: 6722 byte(s)
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.815 2005/06/27 23:04:35 debug Exp $
20050617	Experimenting some more with netbooting OpenBSD/sgi. Adding
		a hack which allows emulated ethernet networks to be
		distributed across multiple emulator processes.
20050618	Minor updates (documentation, dummy YAMON emulation, etc).
20050620	strcpy/strcat -> strlcpy/strlcat updates.
		Some more progress on evbmips (Malta).
20050621	Adding a section to doc/configfiles.html about ethernet
		emulation across multiple hosts.
		Beginning the work on the ARM translation engine (using the
		dynamic-but-not-binary translation method).
		Fixing a bintrans bug: 0x9fc00000 should always be treated as
		PROM area, just as 0xbfc00000 is.
		Minor progress on Malta emulation (the PCI-ISA bus).
20050622	NetBSD/evbmips can now be installed (using another emulated
		machine) and run (including userland and so on). :-)
		Spliting up the bintrans haddr_entry field into two (one for
		read, one for write). Probably not much of a speed increase,
		Updating some NetBSD 2.0 -> 2.0.2 in the documentation.
20050623	Minor updates (documentation, the TODO file, etc).
		gzipped kernels are now always automagically gunzipped when
20050624	Adding a dummy Playstation Portable (PSP) mode, just barely
		enough to run Hello World (in weird colors :-).
		Removing the -b command line option; old bintrans is enabled
		by default instead. It makes more sense.
		Trying to finally fix the non-working performance measurement
		thing (instr/second etc).
20050625	Continuing on the essential basics for ARM emulation. Two
		instructions seem to work, a branch and a simple "mov". (The
		mov arguments are not correct yet.) Performance is definitely
		Various other minor updates.
		Adding the ARM "bl" instruction.
		Adding support for combining multiple ARM instructions into one
		function call. ("mov" + "mov" is the only one implemented so
		far, but it seems to work.)
		Cleaning up some IP32 interrupt things (crime/mace); disabling
		the PS/2 keyboard controller on IP32, so that NetBSD/sgimips
		boots into userland again.
20050626	Finally! NetBSD/sgimips netboots. Adding instructions to
		doc/guestoses.html on how to set up an nfs server etc.
		Various other minor fixes.
		Playstation Portable ".pbp" files can now be used directly.
		(The ELF part of the .pbp is extracted transparently.)
		Converting some sprintf -> snprintf.
		Adding some more instructions to the ARM disassembler.
20050627	More ARM updates. Adding some simple ldr(b), str(b),
		cmps, and conditional branch instructions, enough to run
		a simple Hello World program.
		All ARM instructions are now inlined/generated for all possible
		condition codes.
		Adding add and sub, and more load/store instructions.
		Removing dummy files: cpu_alpha.c, cpu_hppa.c, and cpu_sparc.c.
		Some minor documentation updates; preparing for a 0.3.4
		release. Updating some URLs.

==============  RELEASE 0.3.4  ==============

1 Release notes for GXemul 0.3.4
2 ==============================
4 Copyright (C) 2003-2005 Anders Gavare.
7 GXemul is an experimental instruction-level machine emulator. It can be
8 used to run binary code for (among others) MIPS-based machines, regardless
9 of host platform. Several emulation modes are available. For some modes,
10 processors and surrounding hardware components are emulated well enough to
11 let unmodified operating systems (e.g. NetBSD) run as if they were running
12 on a real machine.
14 I have verified that the following "guest" operating systems can run
15 inside the emulator:
17 Guest operating system Emulated machine
18 ---------------------- ----------------
19 NetBSD/pmax 2.0.2 (and 1.6.2) DECstation 5000/200
20 OpenBSD/pmax 2.8-BETA DECstation 5000/200
21 Ultrix 4.2-4.5 DECstation 5000/200
22 Sprite demo harddisk image DECstation 5000/200
23 Debian GNU/Linux for DECstation DECstation 5000/200
24 Redhat Linux 7.1 for mips DECstation 5000/200
25 NetBSD/arc 1.6.2 Acer PICA-61
26 OpenBSD/arc 2.3 Acer PICA-61
27 NetBSD/hpcmips 2.0.2 NEC MobilePro 770, 780, 800, 880
28 NetBSD/cobalt 2.0.2 Cobalt
29 NetBSD/evbmips 2.0.2 Malta 5Kc/4Kc evaluation board
30 NetBSD/sgimips 2.0.2 SGI O2 ("IP32")
32 Some of these guest operating systems are easier to install and run than
33 others. The best supported mode is the DECstation 5000/200 emulation mode,
34 with NetBSD/pmax as the guest operating system.
36 A couple of other emulation modes exist. Some of these modes are almost
37 working well enough to run complete guest operating systems, but most are
38 just skeletons. The modes that work are listed in the documentation.
40 The emulator can also be used in other experiments; it does not have to
41 run entire guest operating systems. (However, GXemul does not simulate
42 things smaller than an instruction. What this means is that pipe-line
43 stalls, penalties caused by branch-prediction misses or cache misses, and
44 other micro-architectural effects are not simulated.)
46 Summary of changes between release and 0.3.4:
48 x) When emulating a network of multiple machines, the emulated
49 machines can now be placed on different hosts.
51 x) NetBSD/evbmips can now be installed and run from a disk image.
52 (There is no INSTALL kernel for NetBSD/evbmips, so you need to
53 install using another OS, for example emulated NetBSD/pmax.)
55 x) NetBSD/sgimips can now be installed. Not onto a SCSI disk,
56 but the files can be exported via nfs from another emulated
57 machine. The sgimips machine can then netboot. (Read the
58 documentation for details.)
60 There have also been various other minor updates and bugfixes.
62 Files included in this release are:
64 BUGS A list of known bugs.
65 HISTORY Detailed revision history / changelog.
66 LICENSE Copyright message / license.
67 README Quick start instructions, for the impatient.
68 RELEASE This file.
69 TODO TODO notes.
70 configure, Makefile.skel sh and make scripts for building GXemul.
71 doc Documentation.
72 experiments Experimental code. (Usually not needed.)
73 src Source code.
74 tests Regression tests.
76 To build the emulator, run the ./configure script, and then run make.
78 Building the emulator should work on most Unix-like systems. (One system which
79 is specifically known to NOT work is Ultrix/RISC inside the emulator; Ultrix
80 chokes on the configure script and the default cc in Ultrix doesn't work.)
82 Regarding files in the src/include/ directory: only some of these are written
83 by me, the rest are from other sources (such as NetBSD). The license text says
84 that "All advertising materials mentioning features or use of this software"
85 must display acknowledgements. Even though I do NOT feel I mention features or
86 use of the header files (the "software") in any advertising materials, I am
87 still very grateful for the fact that these people have made their files
88 available for re-use, so regardless of legal requirements, I guess thanking
89 them like this is in order:
91 This product includes software developed by the University of
92 California, Berkeley and its contributors.
94 This product includes software developed for the
95 NetBSD Project. See http://www.netbsd.org/ for
96 information about NetBSD.
98 This product includes software developed by Jonathan Stone for
99 the NetBSD Project.
101 This product includes software developed for the NetBSD Project
102 by Matthias Drochner.
104 This product includes software developed by the NetBSD
105 Foundation, Inc. and its contributors.
107 This product includes software developed by Christopher G. Demetriou.
108 [for the NetBSD Project.]
110 This product includes software developed by Adam Glass.
112 This product includes software developed by the PocketBSD project
113 and its contributors.
115 This product includes software developed by Peter Galbavy.
117 Carnegie Mellon University (multiple header files,
118 no specific advertisement text required)
120 This product includes software developed by Charles M. Hannum.
122 This product includes software developed under OpenBSD by Per Fogelström.
124 This product includes software developed by Per Fogelström.
126 This product includes software developed at Ludd, University of
127 Luleå, Sweden and its contributors.
129 This product includes software developed by Hellmuth Michaelis
130 and Joerg Wunsch
132 The font(s) in devices/fonts are Copyright (c) 1992, 1993, 1994
133 by Hellmuth Michaelis and Joerg Wunsch. ("This product includes software
134 developed by Hellmuth Michaelis and Joerg Wunsch", well, the font
135 is maybe not software, but still...)
137 impactsr-bsd.h is Copyright (C) 2004 by Stanislaw Skowronek.
139 This product includes software developed for the NetBSD Project by
140 Wasabi Systems, Inc. [by Simon Burge]
142 arcbios_other.h is Copyright (c) 1996 M. Warner Losh.
144 This product includes software developed by Marc Horowitz.
146 See individual files for license details, if you plan to redistribute GXemul
147 or reuse code.
149 Thanks to (in no specific order, that is, this is in alphabetic order :-)
150 Joachim Buss, Juli Mallett, Juan RP, Alec Voropay, Alexander Yurchenko,
151 and everyone else who has provided me with feedback.
153 If you have found GXemul useful in some way, or feel like sending me comments
154 or feedback in general, then mail me at anders(at)gavare.se.

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