/[gxemul]/trunk/RELEASE
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revision 6 by dpavlin, Mon Oct 8 16:18:11 2007 UTC revision 10 by dpavlin, Mon Oct 8 16:18:27 2007 UTC
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1  Release notes for GXemul 0.3.3.1  Release notes for GXemul 0.3.4
2  ================================  ==============================
3    
4  Copyright (C) 2003-2005  Anders Gavare.  Copyright (C) 2003-2005  Anders Gavare.
5    
6    
7  GXemul is an experimental instruction-level machine emulator. It can be  GXemul is an experimental instruction-level machine emulator. It can be
8  used to run binary code for (among others) MIPS-based machines. Several  used to run binary code for (among others) MIPS-based machines, regardless
9  emulation modes are available. For some emulation modes, processors and  of host platform. Several emulation modes are available. For some modes,
10  surrounding hardware components are emulated well enough to let unmodified  processors and surrounding hardware components are emulated well enough to
11  operating systems run as if they were running on a real machine.  let unmodified operating systems (e.g. NetBSD) run as if they were running
12    on a real machine.
13    
14  I have verified that the following "guest" operating systems can run  I have verified that the following "guest" operating systems can run
15  inside the emulator:  inside the emulator:
16    
17      Guest operating system             Emulated machine      Guest operating system             Emulated machine
18      ----------------------             ----------------      ----------------------             ----------------
19      NetBSD/pmax 2.0 (and 1.6.2)        DECstation 5000/200      NetBSD/pmax 2.0.2 (and 1.6.2)      DECstation 5000/200
20      OpenBSD/pmax 2.8-BETA              DECstation 5000/200      OpenBSD/pmax 2.8-BETA              DECstation 5000/200
21      Ultrix 4.2-4.5                     DECstation 5000/200      Ultrix 4.2-4.5                     DECstation 5000/200
22      Sprite demo harddisk image         DECstation 5000/200      Sprite demo harddisk image         DECstation 5000/200
# Line 23  inside the emulator: Line 24  inside the emulator:
24      Redhat Linux 7.1 for mips          DECstation 5000/200      Redhat Linux 7.1 for mips          DECstation 5000/200
25      NetBSD/arc 1.6.2                   Acer PICA-61      NetBSD/arc 1.6.2                   Acer PICA-61
26      OpenBSD/arc 2.3                    Acer PICA-61      OpenBSD/arc 2.3                    Acer PICA-61
27      NetBSD/hpcmips 2.0                 NEC MobilePro 770, 780, 800, 880      NetBSD/hpcmips 2.0.2               NEC MobilePro 770, 780, 800, 880
28      NetBSD/cobalt 2.0                  Cobalt      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")
31    
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.
35    
36  A couple of other emulation modes exist. Some of these modes are almost  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  working well enough to run complete guest operating systems, but most are
38  just skeletons. The modes that work are listed in the documentation.  just skeletons. The modes that work are listed in the documentation.
39    
40  The emulator can also be used in other experiments; it does not have to  The emulator can also be used in other experiments; it does not have to
41  run entire guest operating systems. It is important to remember, though,  run entire guest operating systems. (However, GXemul does not simulate
42  that GXemul does not simulate things smaller than an instruction; this  things smaller than an instruction. What this means is that pipe-line
43  means that pipe-line stalls, penalties caused by branch-prediction misses,  stalls, penalties caused by branch-prediction misses or cache misses, and
44  and other effects are not simulated.  other micro-architectural effects are not simulated.)
45    
46  Summary of changes between release 0.3.2 and 0.3.3.1:  Summary of changes between release 0.3.3.2 and 0.3.4:
47    
48          x)  When booting from an ISO9660 (CDROM) filesystem image, the kernel          x)  When emulating a network of multiple machines, the emulated
49              can now in some cases be read directly from the image, so there is              machines can now be placed on different hosts.
50              no need any longer to supply an external kernel. (It is a quick,  
51              buggy, and very ugly hack, but it sometimes works.)          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          x)  Mixing more than one disk image type (SCSI, IDE, PC-style floppy)              install using another OS, for example emulated NetBSD/pmax.)
54              within one emulated machine is now possible. (There is however no  
55              stable emulation mode yet that uses this.)          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.)
59    
60          x)  Many minor updates and bugfixes.  There have also been various other minor updates and bugfixes.
61    
62  Files included in this release are:  Files included in this release are:
63    
# Line 136  them like this is in order: Line 146  them like this is in order:
146  See individual files for license details, if you plan to redistribute GXemul  See individual files for license details, if you plan to redistribute GXemul
147  or reuse code.  or reuse code.
148    
149  Thanks to everyone who has provided me with feedback.  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.
152    
153  If you have found GXemul useful in some way, or feel like sending me comments  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.  or feedback in general, then mail me at anders(at)gavare.se.

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