/[gxemul]/trunk/RELEASE
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 22 by dpavlin, Mon Oct 8 16:19:37 2007 UTC revision 28 by dpavlin, Mon Oct 8 16:20:26 2007 UTC
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1  Release notes for Gavare's eXperimental Emulator (GXemul), 0.3.8  Release notes for Gavare's eXperimental Emulator (GXemul), 0.4.1
2  ================================================================  ================================================================
3    
4  Copyright (C) 2003-2006  Anders Gavare.  Copyright (C) 2003-2006  Anders Gavare.
# Line 10  hardware components are emulated well en Line 10  hardware components are emulated well en
10  systems (e.g. NetBSD) run as if they were running on a real machine.  systems (e.g. NetBSD) run as if they were running on a real machine.
11    
12  The documentation lists the machines and guest operating systems that can  The documentation lists the machines and guest operating systems that can
13  be regarded as "working" in GXemul. The best supported guest operating  be regarded as "working" in GXemul. The best working guest operating
14  systems are probably NetBSD/pmax, NetBSD/cats, and OpenBSD/cats.  systems are probably NetBSD/pmax, NetBSD/cats, and OpenBSD/cats.
15    
 The user-visible changes between release 0.3.7 and 0.3.8 include:  
16    
17      o)  The IQ80321 (Xscale) machine mode is now working well enough to  Changes between release 0.4.0.1 and 0.4.1 include, among other things:
         run NetBSD/evbarm 2.1.  
18    
19      o)  Faster framebuffer output in some situations.      o)  Some bugs in the dynamic translation core have been fixed, making
20            all emulation modes (especially the MIPS mode) more stable.
21    
22  Source code related changes include:      o)  In the refactoring effort between 0.4.0 and 0.4.0.1, single-stepping
23            (and instruction tracing) of 64-bit programs was accidentally broken.
24            Single-stepping in 64-bit mode could result in strange exceptions.
25            This has been fixed in 0.4.1.
26    
27      o)  I've finally begun to reimplement the MIPS emulation mode using the      o)  MIPS emulation performance has been improved somewhat:
         new dyntrans system. It will be quite some time until it can run  
         anything, but things are moving in the right direction.  
28    
29      o)  Some changes to the concepts of input-only, output-only, and          R3000: After removing some buggy code (hints for physical page
30          input-output consoles.          translations), it was possible to remove the workaround for R3000
31            caches which was needed in 0.4.0.1 to make Linux and Ultrix run.
32            This gives an overall speedup for R2000/R3000.
33    
34      o)  Some more clean-up of PCI bus concepts.          For non-R3000, there have been some speedups as well. After fixing
35            reference count bugs for 64-bit addressing in the dyntrans system,
36            workarounds/hacks in the tlbwr/tlbwi instructions and in the ASID
37            change helper function could be removed.
38    
39      o)  Machine definitions have been moved out of src/machines.c, and into      o)  A new -s command line option is now available, for dumping
40          individual files in a new sub-directory (src/machines/).          raw runtime data/statistics on every instruction to a file.
41    
42            Currently, the following kinds of data can be dumped:
43    
44            1. the program counter (virtual address)
45            2. the physical address representation of the program counter
46            3. the internal dyntrans instruction call pointer, useful when
47               developing/optimizing the emulator
48    
49            This data can then be analyzed by external tools.
50    
51            (There was a -s command line option in previous releases of
52            the emulator, but it did not work as intended, and was not
53            usable from dyntrans emulation modes.)
54    
55    Please read the HISTORY files for more details.
56    
 There have also been lots of other changes, too many and small to mention here.  
57    
58  Files included in this release are:  Files included in this release are:
59    
   BUGS                        A list of known bugs.  
60    HISTORY                     Detailed revision history / changelog.    HISTORY                     Detailed revision history / changelog.
61    LICENSE                     Copyright message / license.    LICENSE                     Copyright message / license.
62    README                      Quick start instructions, for the impatient.    README                      Quick start instructions, for the impatient.
63    RELEASE                     This file.    RELEASE                     This file.
64    TODO                        TODO notes.    TODO                        TODO notes.
65    configure, Makefile.skel    sh and make scripts for building GXemul.    configure, Makefile.skel    sh and make scripts for building GXemul.
66      demos                       Tutorial-like demos of testmachine functionality.
67    doc                         Documentation.    doc                         Documentation.
68    experiments                 Experimental code. (Usually not needed.)    experiments                 Experimental code. (Usually not needed.)
69    src                         Source code.    src                         Source code.
70    
71  To build the emulator, run the ./configure script, and then run make. This  To build the emulator, run the configure script, and then run make. This
72  should work on most Unix-like systems.  should work on most Unix-like systems.
73    
74    
75  Regarding files in the src/include/ directory: only some of these are written  Regarding files in the src/include/ directory: only some of these are written
76  by me, the rest are from other sources (such as NetBSD). The license text says  by me, the rest are from other sources (such as NetBSD). The license text says
77  that "All advertising materials mentioning features or use of this software"  that "All advertising materials mentioning features or use of this software"
# Line 127  them like this is in order: Line 147  them like this is in order:
147    
148      This product includes software developed by the Alice Group.      This product includes software developed by the Alice Group.
149    
150        This product includes software developed by Ichiro FUKUHARA.
151    
152  Also, src/include/alpha_rpb.h requires the following:  Also, src/include/alpha_rpb.h requires the following:
153    
154      Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.      Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
# Line 143  Also, src/include/alpha_rpb.h requires t Line 165  Also, src/include/alpha_rpb.h requires t
165  See individual files for license details, if you plan to redistribute GXemul  See individual files for license details, if you plan to redistribute GXemul
166  or reuse code.  or reuse code.
167    
168    
169  Thanks to (in no specific order) Joachim Buss, Olivier Houchard, Juli Mallett,  Thanks to (in no specific order) Joachim Buss, Olivier Houchard, Juli Mallett,
170  Juan Romero Pardines, Alec Voropay, Göran Weinholt, Alexander Yurchenko, and  Juan Romero Pardines, Alec Voropay, Göran Weinholt, Alexander Yurchenko, and
171  everyone else who has provided me with feedback.  everyone else who has provided me with feedback.
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