Parent Directory | Revision Log
++ trunk/HISTORY (local) $Id: HISTORY,v 1.1480 2007/02/19 01:34:42 debug Exp $ 20061029 Changing usleep(1) calls in the debugger to usleep(10000) 20061107 Adding a new disk image option (-d o...) which sets the ISO9660 filesystem base offset; also making some other hacks to allow NetBSD/dreamcast and homebrew demos/games to boot directly from a filesystem image. Moving Dreamcast-specific stuff in the documentation to its own page (dreamcast.html). Adding a border to the Dreamcast PVR framebuffer. 20061108 Adding a -T command line option (again?), for halting the emulator on unimplemented memory accesses. 20061109 Continuing on various SH4 and Dreamcast related things. The emulator should now halt on more unimplemented device accesses, instead of just printing a warning, forcing me to actually implement missing stuff :) 20061111 Continuing on SH4 and Dreamcast stuff. Adding a bogus Landisk (SH4) machine mode. 20061112 Implementing some parts of the Dreamcast GDROM device. With some ugly hacks, NetBSD can (barely) mount an ISO image. 20061113 NetBSD/dreamcast now starts booting from the Live CD image, but crashes randomly quite early on in the boot process. 20061122 Beginning on a skeleton interrupt.h and interrupt.c for the new interrupt subsystem. 20061124 Continuing on the new interrupt system; taking the first steps to attempt to connect CPUs (SuperH and MIPS) and devices (dev_cons and SH4 timer interrupts) to it. Many things will probably break from now on. 20061125 Converting dev_ns16550, dev_8253 to the new interrupt system. Attempting to begin to convert the ISA bus. 20061130 Incorporating a patch from Brian Foley for the configure script, which checks for X11 libs in /usr/X11R6/lib64 (which is used on some Linux systems). 20061227 Adding a note in the man page about booting from Dreamcast CDROM images (i.e. that no external kernel is needed). 20061229 Continuing on the interrupt system rewrite: beginning to convert more devices, adding abort() calls for legacy interrupt system calls so that everything now _has_ to be rewritten! Almost all machine modes are now completely broken. 20061230 More progress on removing old interrupt code, mostly related to the ISA bus + devices, the LCA bus (on AlphaBook1), and the Footbridge bus (for CATS). And some minor PCI stuff. Connecting the ARM cpu to the new interrupt system. The CATS, NetWinder, and QEMU_MIPS machine modes now work with the new interrupt system :) 20061231 Connecting PowerPC CPUs to the new interrupt system. Making PReP machines (IBM 6050) work again. Beginning to convert the GT PCI controller (for e.g. Malta and Cobalt emulation). Some things work, but not everything. Updating Copyright notices for 2007. 20070101 Converting dev_kn02 from legacy style to devinit; the 3max machine mode now works with the new interrupt system :-] 20070105 Beginning to convert the SGI O2 machine to the new interrupt system; finally converting O2 (IP32) devices to devinit, etc. 20070106 Continuing on the interrupt system redesign/rewrite; KN01 (PMAX), KN230, and Dreamcast ASIC interrupts should work again, moving out stuff from machine.h and devices.h into the corresponding devices, beginning the rewrite of i80321 interrupts, etc. 20070107 Beginning on the rewrite of Eagle interrupt stuff (PReP, etc). 20070117 Beginning the rewrite of Algor (V3) interrupts (finally changing dev_v3 into devinit style). 20070118 Removing the "bus" registry concept from machine.h, because it was practically meaningless. Continuing on the rewrite of Algor V3 ISA interrupts. 20070121 More work on Algor interrupts; they are now working again, well enough to run NetBSD/algor. :-) 20070122 Converting VR41xx (HPCmips) interrupts. NetBSD/hpcmips can be installed using the new interrupt system :-) 20070123 Making the testmips mode work with the new interrupt system. 20070127 Beginning to convert DEC5800 devices to devinit, and to the new interrupt system. Converting Playstation 2 devices to devinit, and converting the interrupt system. Also fixing a severe bug: the interrupt mask register on Playstation 2 is bitwise _toggled_ on writes. 20070128 Removing the dummy NetGear machine mode and the 8250 device (which was only used by the NetGear machine). Beginning to convert the MacPPC GC (Grand Central) interrupt controller to the new interrupt system. Converting Jazz interrupts (PICA61 etc.) to the new interrupt system. NetBSD/arc can be installed again :-) Fixing the JAZZ timer (hardcoding it at 100 Hz, works with NetBSD and it is better than a completely dummy timer as it was before). Converting dev_mp to the new interrupt system, although I haven't had time to actually test it yet. Completely removing src/machines/interrupts.c, cpu_interrupt and cpu_interrupt_ack in src/cpu.c, and src/include/machine_interrupts.h! Adding fatal error messages + abort() in the few places that are left to fix. Converting dev_z8530 to the new interrupt system. FINALLY removing the md_int struct completely from the machine struct. SH4 fixes (adding a PADDR invalidation in the ITLB replacement code in memory_sh.c); the NetBSD/dreamcast LiveCD now runs all the way to the login prompt, and can be interacted with :-) Converting the CPC700 controller (PCI and interrupt controller for PM/PPC) to the new interrupt system. 20070129 Fixing MACE ISA interrupts (SGI IP32 emulation). Both NetBSD/ sgimips' and OpenBSD/sgi's ramdisk kernels can now be interacted with again. 20070130 Moving out the MIPS multi_lw and _sw instruction combinations so that they are auto-generated at compile time instead. 20070131 Adding detection of amd64/x86_64 hosts in the configure script, for doing initial experiments (again :-) with native code generation. Adding a -k command line option to set the size of the dyntrans cache, and a -B command line option to disable native code generation, even if GXemul was compiled with support for native code generation for the specific host CPU architecture. 20070201 Experimenting with a skeleton for native code generation. Changing the default behaviour, so that native code generation is now disabled by default, and has to be enabled by using -b on the command line. 20070202 Continuing the native code generation experiments. Making PCI interrupts work for Footbridge again. 20070203 More native code generation experiments. Removing most of the native code generation experimental code, it does not make sense to include any quick hacks like this. Minor cleanup/removal of some more legacy MIPS interrupt code. 20070204 Making i80321 interrupts work again (for NetBSD/evbarm etc.), and fixing the timer at 100 Hz. 20070206 Experimenting with removing the wdc interrupt slowness hack. 20070207 Lowering the number of dyntrans TLB entries for MIPS from 192 to 128, resulting in a minor speed improvement. Minor optimization to the code invalidation routine in cpu_dyntrans.c. 20070208 Increasing (experimentally) the nr of dyntrans instructions per loop from 60 to 120. 20070210 Commenting out (experimentally) the dyntrans_device_danger detection in memory_rw.c. Changing the testmips and baremips machines to use a revision 2 MIPS64 CPU by default, instead of revision 1. Removing the dummy i960, IA64, x86, AVR32, and HP PA-RISC files, the PC bios emulation, and the Olivetti M700 (ARC) and db64360 emulation modes. 20070211 Adding an "mp" demo to the demos directory, which tests the SMP functionality of the testmips machine. Fixing PReP interrupts some more. NetBSD/prep now boots again. 20070216 Adding a "nop workaround" for booting Mach/PMAX to the documentation; thanks to Artur Bujdoso for the values. Converting more of the MacPPC interrupt stuff to the new system. Beginning to convert BeBox interrupts to the new system. PPC603e should NOT have the PPC_NO_DEC flag! Removing it. Correcting BeBox clock speed (it was set to 100 in the NetBSD bootinfo block, but should be 33000000/4), allowing NetBSD to start without using the (incorrect) PPC_NO_DEC hack. 20070217 Implementing (slow) AltiVec vector loads and stores, allowing NetBSD/macppc to finally boot using the GENERIC kernel :-) Updating the documentation with install instructions for NetBSD/macppc. 20070218-19 Regression testing for the release. ============== RELEASE 0.4.4 ==============
1 | dpavlin | 34 | Release notes for Gavare's eXperimental Emulator (GXemul), 0.4.4 |
2 | dpavlin | 28 | ================================================================ |
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 | 34 | Processors (ARM, MIPS, PowerPC, SuperH) are emulated using dynamic |
13 | 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 | 34 | Changes between release 0.4.3 and 0.4.4 include, among other things: |
23 | dpavlin | 12 | |
24 | dpavlin | 34 | o) The interrupt subsystem has been redesigned. This means two things: |
25 | dpavlin | 2 | |
26 | dpavlin | 34 | x) Internal code cleanup, which makes the whole emulator more |
27 | maintainable. Instead of using magically encoded integers | ||
28 | for interrupts, strings are now used. These strings are in | ||
29 | the form of "paths", so that devices and busses can more | ||
30 | easily be connected to other busses, devices, or CPUs. | ||
31 | dpavlin | 10 | |
32 | dpavlin | 34 | x) Some machine types which happened to work in release 0.4.3, |
33 | but were not listed in the documentation as working, may | ||
34 | have stopped working now. As always, the documentation should | ||
35 | indicate the combinations of machine modes and guest OSes that | ||
36 | are supposed to work. | ||
37 | dpavlin | 2 | |
38 | dpavlin | 34 | o) SuperH (SH4) emulation is now somewhat more stable, enough to let a |
39 | NetBSD/dreamcast Live CD be usable. | ||
40 | dpavlin | 2 | |
41 | dpavlin | 34 | o) PowerPC "G4" emulation is now stable enough to let NetBSD/macppc |
42 | run from a disk image. (Installing actually worked before, but the | ||
43 | NetBSD/macppc GENERIC kernel uses AltiVec instructions which were | ||
44 | not implemented correctly.) | ||
45 | dpavlin | 2 | |
46 | dpavlin | 34 | o) The PICA-61 (arc) and i80321 (evbarm) emulation modes now have their |
47 | timers fixed at 100 Hz. A hardcoded speed like this is very ugly, but | ||
48 | it is at least better than before (when the timer wasn't really | ||
49 | running at any specific speed at all). | ||
50 | dpavlin | 2 | |
51 | dpavlin | 24 | Please read the HISTORY files for more details. |
52 | |||
53 | |||
54 | dpavlin | 2 | Files included in this release are: |
55 | |||
56 | HISTORY Detailed revision history / changelog. | ||
57 | LICENSE Copyright message / license. | ||
58 | README Quick start instructions, for the impatient. | ||
59 | RELEASE This file. | ||
60 | TODO TODO notes. | ||
61 | dpavlin | 4 | configure, Makefile.skel sh and make scripts for building GXemul. |
62 | dpavlin | 24 | demos Tutorial-like demos of testmachine functionality. |
63 | dpavlin | 2 | doc Documentation. |
64 | experiments Experimental code. (Usually not needed.) | ||
65 | dpavlin | 4 | src Source code. |
66 | dpavlin | 2 | |
67 | dpavlin | 24 | To build the emulator, run the configure script, and then run make. This |
68 | dpavlin | 22 | should work on most Unix-like systems. |
69 | dpavlin | 2 | |
70 | dpavlin | 24 | |
71 | dpavlin | 4 | Regarding files in the src/include/ directory: only some of these are written |
72 | by me, the rest are from other sources (such as NetBSD). The license text says | ||
73 | dpavlin | 2 | that "All advertising materials mentioning features or use of this software" |
74 | must display acknowledgements. Even though I do NOT feel I mention features or | ||
75 | use of the header files (the "software") in any advertising materials, I am | ||
76 | still very grateful for the fact that these people have made their files | ||
77 | available for re-use, so regardless of legal requirements, I guess thanking | ||
78 | them like this is in order: | ||
79 | |||
80 | This product includes software developed by the University of | ||
81 | California, Berkeley and its contributors. | ||
82 | |||
83 | This product includes software developed for the | ||
84 | NetBSD Project. See http://www.netbsd.org/ for | ||
85 | information about NetBSD. | ||
86 | |||
87 | This product includes software developed by Jonathan Stone for | ||
88 | the NetBSD Project. | ||
89 | |||
90 | This product includes software developed for the NetBSD Project | ||
91 | by Matthias Drochner. | ||
92 | |||
93 | This product includes software developed by the NetBSD | ||
94 | Foundation, Inc. and its contributors. | ||
95 | |||
96 | This product includes software developed by Christopher G. Demetriou. | ||
97 | [for the NetBSD Project.] | ||
98 | |||
99 | This product includes software developed by Adam Glass. | ||
100 | |||
101 | This product includes software developed by the PocketBSD project | ||
102 | and its contributors. | ||
103 | |||
104 | This product includes software developed by Peter Galbavy. | ||
105 | |||
106 | Carnegie Mellon University (multiple header files, | ||
107 | no specific advertisement text required) | ||
108 | |||
109 | This product includes software developed by Charles M. Hannum. | ||
110 | |||
111 | This product includes software developed under OpenBSD by Per Fogelström. | ||
112 | |||
113 | This product includes software developed by Per Fogelström. | ||
114 | |||
115 | This product includes software developed at Ludd, University of | ||
116 | Luleå, Sweden and its contributors. | ||
117 | |||
118 | This product includes software developed by Hellmuth Michaelis | ||
119 | and Joerg Wunsch | ||
120 | |||
121 | The font(s) in devices/fonts are Copyright (c) 1992, 1993, 1994 | ||
122 | by Hellmuth Michaelis and Joerg Wunsch. ("This product includes software | ||
123 | developed by Hellmuth Michaelis and Joerg Wunsch", well, the font | ||
124 | is maybe not software, but still...) | ||
125 | |||
126 | impactsr-bsd.h is Copyright (C) 2004 by Stanislaw Skowronek. | ||
127 | |||
128 | This product includes software developed for the NetBSD Project by | ||
129 | Wasabi Systems, Inc. [by Simon Burge] | ||
130 | |||
131 | arcbios_other.h is Copyright (c) 1996 M. Warner Losh. | ||
132 | |||
133 | This product includes software developed by Marc Horowitz. | ||
134 | |||
135 | dpavlin | 14 | This product includes software developed by Brini. |
136 | |||
137 | This product includes software developed by Mark Brinicombe | ||
138 | for the NetBSD Project. | ||
139 | |||
140 | dpavlin | 20 | This product includes software developed by TooLs GmbH. |
141 | |||
142 | This product includes software developed by Manuel Bouyer. | ||
143 | |||
144 | dpavlin | 22 | This product includes software developed by the Alice Group. |
145 | |||
146 | dpavlin | 24 | This product includes software developed by Ichiro FUKUHARA. |
147 | |||
148 | dpavlin | 32 | This product includes software developed by Marcus Comstedt. |
149 | |||
150 | dpavlin | 12 | Also, src/include/alpha_rpb.h requires the following: |
151 | |||
152 | Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University. | ||
153 | All rights reserved. | ||
154 | |||
155 | Author: Keith Bostic, Chris G. Demetriou | ||
156 | |||
157 | Permission to use, copy, modify and distribute this software and | ||
158 | its documentation is hereby granted, provided that both the copyright | ||
159 | notice and this permission notice appear in all copies of the | ||
160 | software, derivative works or modified versions, and any portions | ||
161 | thereof, and that both notices appear in supporting documentation. | ||
162 | |||
163 | dpavlin | 2 | See individual files for license details, if you plan to redistribute GXemul |
164 | or reuse code. | ||
165 | |||
166 | dpavlin | 24 | |
167 | dpavlin | 2 | If you have found GXemul useful in some way, or feel like sending me comments |
168 | or feedback in general, then mail me at anders(at)gavare.se. | ||
169 |
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