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$Id: HISTORY,v 1.905 2005/08/16 09:16:24 debug Exp $
20050628	Continuing the work on the ARM translation engine. end_of_page
		works. Experimenting with load/store translation caches
		(virtual -> physical -> host).
20050629	More ARM stuff (memory access translation cache, mostly). This
		might break a lot of stuff elsewhere, probably some MIPS-
		related translation things.
20050630	Many load/stores are now automatically generated and included
		into cpu_arm_instr.c; 1024 functions in total (!).
		Fixes based on feedback from Alec Voropay: only print 8 hex
		digits instead of 16 in some cases when emulating 32-bit
		machines; similar 8 vs 16 digit fix for breakpoint addresses;
		4Kc has 16 TLB entries, not 48; the MIPS config select1
		register is now printed with "reg ,0".
		Also changing many other occurances of 16 vs 8 digit output.
		Adding cache associativity fields to mips_cpu_types.h; updating
		some other cache fields; making the output of
		mips_cpu_dumpinfo() look nicer.
		Generalizing the bintrans stuff for device accesses to also
		work with the new translation system. (This might also break
		some MIPS things.)
		Adding multi-load/store instructions to the ARM disassembler
		and the translator, and some optimizations of various kinds.
20050701	Adding a simple dev_disk (it can read/write sectors from
		disk images).
20050712	Adding dev_ether (a simple ethernet send/receive device).
		Debugger command "ninstrs" for toggling show_nr_of_instructions
		during runtime.
		Removing the framebuffer logo.
20050713	Continuing on dev_ether.
		Adding a dummy cpu_alpha (again).
20050714	More work on cpu_alpha.
20050715	More work on cpu_alpha. Many instructions work, enough to run
		a simple framebuffer fill test (similar to the ARM test).
20050716	More Alpha stuff.
20050717	Minor updates (Alpha stuff).
20050718	Minor updates (Alpha stuff).
20050719	Generalizing some Alpha instructions.
20050720	More Alpha-related updates.
20050721	Continuing on cpu_alpha. Importing rpb.h from NetBSD/alpha.
20050722	Alpha-related updates: userland stuff (Hello World using
		write() compiled statically for FreeBSD/Alpha runs fine), and
		more instructions are now implemented.
20050723	Fixing ldq_u and stq_u.
		Adding more instructions (conditional moves, masks, extracts,
		shifts).
20050724	More FreeBSD/Alpha userland stuff, and adding some more
		instructions (inserts).
20050725	Continuing on the Alpha stuff. (Adding dummy ldt/stt.)
		Adding a -A command line option to turn off alignment checks
		in some cases (for translated code).
		Trying to remove the old bintrans code which updated the pc
		and nr_of_executed_instructions for every instruction.
20050726	Making another attempt att removing the pc/nr of instructions
		code. This time it worked, huge performance increase for
		artificial test code, but performance loss for real-world
		code :-( so I'm scrapping that code for now.
		Tiny performance increase on Alpha (by using ret instead of
		jmp, to play nice with the Alpha's branch prediction) for the
		old MIPS bintrans backend.
20050727	Various minor fixes and cleanups.
20050728	Switching from a 2-level virtual to host/physical translation
		system for ARM emulation, to a 1-level translation.
		Trying to switch from 2-level to 1-level for the MIPS bintrans
		system as well (Alpha only, so far), but there is at least one
		problem: caches and/or how they work with device mappings.
20050730	Doing the 2-level to 1-level conversion for the i386 backend.
		The cache/device bug is still there for R2K/3K :(
		Various other minor updates (Malta etc).
		The mc146818 clock now updates the UIP bit in a way which works
		better with Linux for at least sgimips and Malta emulation.
		Beginning the work on refactoring the dyntrans system.
20050731	Continuing the dyntrans refactoring.
		Fixing a small but serious host alignment bug in memory_rw.
		Adding support for big-endian load/stores to the i386 bintrans
		backend.
		Another minor i386 bintrans backend update: stores from the
		zero register are now one (or two) loads shorter.
		The slt and sltu instructions were incorrectly implemented for
		the i386 backend; only using them for 32-bit mode for now.
20050801	Continuing the dyntrans refactoring.
		Cleanup of the ns16550 serial controller (removing unnecessary
		code).
		Bugfix (memory corruption bug) in dev_gt, and a patch/hack from
		Alec Voropay for Linux/Malta.
20050802	More cleanup/refactoring of the dyntrans subsystem: adding
		phys_page pointers to the lookup tables, for quick jumps
		between translated pages.
		Better fix for the ns16550 device (but still no real FIFO
		functionality).
		Converting cpu_ppc to the new dyntrans system. This means that
		I will have to start from scratch with implementing each
		instruction, and figure out how to implement dual 64/32-bit
		modes etc.
		Removing the URISC CPU family, because it was useless.
20050803	When selecting a machine type, the main type can now be omitted
		if the subtype name is unique. (I.e. -E can be omitted.)
		Fixing a dyntrans/device update bug. (Writes to offset 0 of
		a device could sometimes go unnoticed.)
		Adding an experimental "instruction combination" hack for
		ARM for memset-like byte fill loops.
20050804	Minor progress on cpu_alpha and related things.
		Finally fixing the MIPS dmult/dmultu bugs.
		Fixing some minor TODOs.
20050805	Generalizing the 8259 PIC. It now also works with Cobalt
		and evbmips emulation, in addition to the x86 hack.
		Finally converting the ns16550 device to use devinit.
		Continuing the work on the dyntrans system. Thinking about
		how to add breakpoints.
20050806	More dyntrans updates. Breakpoints seem to work now.
20050807	Minor updates: cpu_alpha and related things; removing
		dev_malta (as it isn't used any more).
		Dyntrans: working on general "show trace tree" support.
		The trace tree stuff now works with both the old MIPS code and
		with newer dyntrans modes. :)
		Continuing on Alpha-related stuff (trying to get *BSD to boot
		a bit further, adding more instructions, etc).
20050808	Adding a dummy IA64 cpu family, and continuing the refactoring
		of the dyntrans system.
		Removing the regression test stuff, because it was more or
		less useless.
		Adding loadlinked/storeconditional type instructions to the
		Alpha emulation. (Needed for Linux/alpha. Not very well tested
		yet.)
20050809	The function call trace tree now prints a per-function nr of
		arguments. (Semi-meaningless, since that data isn't read yet
		from the ELFs; some hardcoded symbols such as memcpy() and
		strlen() work fine, though.)
		More dyntrans refactoring; taking out more of the things that
		are common to all cpu families.
20050810	Working on adding support for "dual mode" for PPC dyntrans
		(i.e. both 64-bit and 32-bit modes).
		(Re)adding some simple PPC instructions.
20050811	Adding a dummy M68K cpu family. The dyntrans system isn't ready
		for variable-length ISAs yet, so it's completely bogus so far.
		Re-adding more PPC instructions.
		Adding a hack to src/file.c which allows OpenBSD/mac68k a.out
		kernels to be loaded.
		Beginning to add PPC loads/stores. So far they only work in
		32-bit mode.
20050812	The configure file option "add_remote" now accepts symbolic
		host names, in addition to numeric IPv4 addresses.
		Re-adding more PPC instructions.
20050814	Continuing to port back more PPC instructions.
		Found and fixed the cache/device write-update bug for 32-bit
		MIPS bintrans. :-)
		Triggered a really weird and annoying bug in Compaq's C
		compiler; ccc sometimes outputs code which loads from an
		address _before_ checking whether the pointer was NULL or not.
		(I'm not sure how to handle this problem.)
20050815	Removing all of the old x86 instruction execution code; adding
		a new (dummy) dyntrans module for x86.
		Taking the first steps to extend the dyntrans system to support
		variable-length instructions.
		Slowly preparing for the next release.
20050816	Adding a dummy SPARC cpu module.
		Minor updates (documentation etc) for the release.

==============  RELEASE 0.3.5  ==============


1 <html><head><title>Gavare's eXperimental Emulator:&nbsp;&nbsp;&nbsp;Experimenting with GXemul</title>
2 <meta name="robots" content="noarchive,nofollow,noindex"></head>
3 <body bgcolor="#f8f8f8" text="#000000" link="#4040f0" vlink="#404040" alink="#ff0000">
4 <table border=0 width=100% bgcolor="#d0d0d0"><tr>
5 <td width=100% align=center valign=center><table border=0 width=100%><tr>
6 <td align="left" valign=center bgcolor="#d0efff"><font color="#6060e0" size="6">
7 <b>Gavare's eXperimental Emulator:&nbsp;&nbsp;&nbsp;</b></font>
8 <font color="#000000" size="6"><b>Experimenting with GXemul</b>
9 </font></td></tr></table></td></tr></table><p>
10
11 <!--
12
13 $Id: experiments.html,v 1.89 2005/08/09 18:29:20 debug Exp $
14
15 Copyright (C) 2003-2005 Anders Gavare. All rights reserved.
16
17 Redistribution and use in source and binary forms, with or without
18 modification, are permitted provided that the following conditions are met:
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20 1. Redistributions of source code must retain the above copyright
21 notice, this list of conditions and the following disclaimer.
22 2. Redistributions in binary form must reproduce the above copyright
23 notice, this list of conditions and the following disclaimer in the
24 documentation and/or other materials provided with the distribution.
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26 derived from this software without specific prior written permission.
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35 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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38 SUCH DAMAGE.
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40 -->
41
42 <a href="./">Back to the index</a>
43
44 <p><br>
45 <h2>Experimenting with GXemul</h2>
46
47 <p>
48 <ul>
49 <li><a href="#hello">Hello world</a>
50 <li><a href="#expdevices">Experimental devices</a>
51 <li><a href="#experiments">Experiments with other kernels and guest OSes</a>
52 </ul>
53
54
55
56
57
58
59 <p><br>
60 <a name="hello"></a>
61 <h3>Hello world:</h3>
62
63 You might want to use the emulator to develop programs on your own,
64 not just run precompiled kernels such as NetBSD. To get started, I recommend
65 that you do two things:
66
67 <p>
68 <ul>
69 <li>Build and install a cross-compiler for MIPS.
70 <li>Compile this hello world program, and run it in the emulator.
71 </ul>
72
73 <p>
74 <table border="0"><tr><td width="40">&nbsp;</td><td>
75 <pre>
76 <font color=#f00000>/* Hello world for GXemul */
77
78 /* Note: The cast to a signed int causes the address to be sign-extended
79 correctly to 0xffffffffb00000xx when compiled in 64-bit mode */
80 </font><font color=#a0a0a0>#define PUTCHAR_ADDRESS ((signed int)0xb0000000)
81 #define HALT_ADDRESS ((signed int)0xb0000010)
82
83 </font><font color=#c000c0>void </font><font color=#000000><a name="printchar">printchar</a>(</font><font color=#c000c0>char </font><font color=#000000>ch)
84 {
85 *((</font><font color=#c000c0>volatile unsigned char </font><font color=#000000>*) PUTCHAR_ADDRESS) = ch;
86 }
87
88 </font><font color=#c000c0>void </font><font color=#000000><a name="halt">halt</a>(</font><font color=#c000c0>void</font><font color=#000000>)
89 {
90 *((</font><font color=#c000c0>volatile unsigned char </font><font color=#000000>*) HALT_ADDRESS) = 0;
91 }
92
93 </font><font color=#c000c0>void </font><font color=#000000><a name="printstr">printstr</a>(</font><font color=#c000c0>char </font><font color=#000000>*s)
94 {
95 </font><font color=#c000c0>while </font><font color=#000000>(*s)
96 printchar(*s++);
97 }
98
99 </font><font color=#c000c0>void </font><font color=#000000>f(</font><font color=#c000c0>void</font><font color=#000000>)
100 {
101 printstr(</font><font color=#00c000>"Hello world\n"</font><font color=#000000>);
102 halt();
103 }
104 </font></pre>
105 </td></tr></table>
106
107 <p>(This hello world program is available here as well:
108 <a href="hello_mips.c"><tt>hello_mips.c</tt></a>)
109
110 <p>I recommend that you build a GCC cross compiler for the
111 <b>mips64-unknown-elf</b> target, and install it. Other compilers could
112 work too, but GCC is good because of its portability. Then try to compile
113 and link the hello world program:
114 <pre>
115 $ <b>mips64-unknown-elf-gcc -O2 hello_mips.c -mips4 -mabi=64 -c</b>
116 $ <b>mips64-unknown-elf-ld -Ttext 0xa800000000030000 -e f hello_mips.o -o hello_mips --oformat=elf64-bigmips</b>
117 $ <b>file hello_mips</b>
118 hello_mips: ELF 64-bit MSB mips-4 executable, MIPS R3000_BE, version 1 (SYSV), statically linked, not stripped
119 $ <b>gxemul -q -E testmips hello_mips</b>
120 Hello world
121
122 $ <b>mips64-unknown-elf-gcc -O2 hello_mips.c -c</b>
123 $ <b>mips64-unknown-elf-ld -Ttext 0x80030000 -e f hello_mips.o -o hello_mips</b>
124 $ <b>file hello_mips</b>
125 hello_mips: ELF 32-bit MSB mips-3 executable, MIPS R3000_BE, version 1 (SYSV), statically linked, not stripped
126 $ <b>gxemul -q -E testmips hello_mips</b>
127 Hello world
128 </pre>
129
130 <p>
131 As you can see above, a GCC configured for mips64-unknown-elf can produce
132 both 64-bit and 32-bit binaries. If you don't want to run the entire
133 Hello World program, but want to single-step through the execution to
134 learn more about how MIPS programs run, then add -V to the command line:
135
136 <p>
137 <pre>
138 $ <b>gxemul -V -E testmips hello_mips</b>
139 ..
140 GXemul&gt; <b>r</b>
141 cpu0: pc = a800000000030078 <f>
142 cpu0: hi = 0000000000000000 lo = 0000000000000000
143 cpu0: zr = 0000000000000000 at = 0000000000000000
144 cpu0: v0 = 0000000000000000 v1 = 0000000000000000
145 ..
146 cpu0: gp = a8000000000780c0 sp = ffffffffa0007f00
147 cpu0: fp = 0000000000000000 ra = 0000000000000000
148 GXemul&gt; <b>s 15</b>
149 &lt;f&gt;
150 a800000000030078: 67bdfff0 daddiu sp,sp,-16
151 a80000000003007c: 3c04a800 lui a0,0xa800
152 a800000000030080: 3c010003 lui at,0x3
153 a800000000030084: 64840000 daddiu a0,a0,0
154 a800000000030088: 642100b8 daddiu at,at,184
155 a80000000003008c: 0004203c dsll32 a0,a0,0
156 a800000000030090: 0081202d daddu a0,a0,at
157 a800000000030094: ffbf0000 sd ra,0(sp) [0xffffffffa0007ef0, data=0x0000000000000000]
158 a800000000030098: 0c00c00a jal 0xa800000000030028 &lt;printstr&gt;
159 a80000000003009c: 00000000 (d) nop
160 &lt;printstr("Hello world\n",0,0,0,..)&gt;
161 &lt;printstr&gt;
162 a800000000030028: 67bdfff0 daddiu sp,sp,-16
163 a80000000003002c: ffb00000 sd s0,0(sp) [0xffffffffa0007ee0, data=0x0000000000000000]
164 a800000000030030: ffbf0008 sd ra,8(sp) [0xffffffffa0007ee8, data=0xa8000000000300a0]
165 a800000000030034: 90820000 lbu v0,0(a0) [0xa8000000000300b8 = $LC0, data=0x48]
166 a800000000030038: 00021600 sll v0,v0,24
167 GXemul&gt; <b>print v0</b>
168 v0 = 0x0000000048000000
169 GXemul&gt; <b>_</b>
170 </pre>
171
172 <p>The syntax of the single-step debugger shouldn't be too hard to grasp.
173 Type "<tt>s</tt>" to single-step one instruction. For some commands (e.g.
174 the single-step command), just pressing enter on a blank line will cause
175 the last command to be repeated. Type "<tt>quit</tt>" to quit.
176
177 <p>
178 Hopefully this is enough to get you inspired. :-)
179
180
181
182
183
184
185 <p><br>
186 <a name="expdevices"></a>
187 <h3>Experimental devices:</h3>
188
189 The emulator has several modes where it doesn't emulate any real machine.
190 It can either run in "bare" mode, where no devices are included by default
191 (just the CPU), or in a "test" mode where some simple devices are
192 emulated.
193
194 <p>The test machines (<tt>testmips</tt>, <tt>testppc</tt>, etc) have the
195 following experimental devices:
196
197 <p>
198 <center><table border="0" width="80%">
199
200 <tr>
201 <td align="left" valign="top" width="200">
202 <b><tt>cons</tt>:</b>
203 <p>A simple console device, for writing
204 characters to the controlling terminal
205 and receiving keypresses.
206 <p>Source code:&nbsp;&nbsp;<font color="#0000f0"><tt>src/devices/dev_cons.c</tt></font>
207 <br>Default physical address:&nbsp&nbsp;<font color="#0000f0">0x10000000</font>
208 </td>
209 <td align="left" valign="top" width="25">&nbsp;</td>
210 <td align="left" valign="top">
211 <table border="0">
212 <tr>
213 <td align="left" valign="top"><i><u>Offset:</u></i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>
214 <td align="left" valign="top"><i><u>Effect:</u></i></td>
215 </tr>
216 <tr>
217 <td align="left" valign="top"><tt>0x00</tt></td>
218 <td align="left" valign="top">
219 Read: <b><tt>getchar()</tt></b> (non-blocking; returns
220 <tt>0</tt> if no char was available)<br>
221 Write: <b><tt>putchar(ch)</tt></b></td>
222 </tr>
223 <tr>
224 <td align="left" valign="top"><tt>0x10</tt></td>
225 <td align="left" valign="top">Read or write: <b><tt>halt()</tt></b><br>
226 (Useful for exiting the emulator.)</td>
227 </tr>
228 </table>
229 </td>
230 </tr>
231
232 <tr height="15">
233 <td height="15">&nbsp;</td>
234 </tr>
235
236 <tr>
237 <td align="left" valign="top">
238 <b><tt>mp</tt>:</b>
239 <p>This device controls the behaviour of CPUs in an emulated
240 multi-processor system.
241 <p>Source code:&nbsp;&nbsp;<font color="#0000f0"><tt>src/devices/dev_mp.c</tt></font>
242 <br>Default physical address:&nbsp&nbsp;<font color="#0000f0">0x11000000</font>
243 </td>
244 <td></td>
245 <td align="left" valign="top">
246 <table border="0">
247 <tr>
248 <td align="left" valign="top"><i><u>Offset:</u></i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>
249 <td align="left" valign="top"><i><u>Effect:</u></i></td>
250 </tr>
251 <tr>
252 <td align="left" valign="top"><tt>0x0000</tt></td>
253 <td align="left" valign="top">Read: <b><tt>whoami()</tt></b>.
254 Returns the id of the CPU doing the read.</td>
255 </tr>
256 <tr>
257 <td align="left" valign="top"><tt>0x0010</tt></td>
258 <td align="left" valign="top">Read: <b><tt>ncpus()</tt></b>.
259 Returns the number of CPUs in the system.</td>
260 </tr>
261 <tr>
262 <td align="left" valign="top"><tt>0x0020</tt></td>
263 <td align="left" valign="top">Write: <b><tt>startupcpu(i)</tt></b>.
264 Starts CPU i. It begins execution at the address
265 set by a write to startupaddr (see below).</td>
266 </tr>
267 <tr>
268 <td align="left" valign="top"><tt>0x0030</tt></td>
269 <td align="left" valign="top">Write: <b><tt>startupaddr(addr)</tt></b>.
270 Sets the starting address for CPUs.</td>
271 </tr>
272 <tr>
273 <td align="left" valign="top"><tt>0x0040</tt></td>
274 <td align="left" valign="top">Write: <b><tt>pause_addr(addr)</tt></b>.
275 Sets the pause address. (TODO: This is not
276 used anymore?)</td>
277 </tr>
278 <tr>
279 <td align="left" valign="top"><tt>0x0050</tt></td>
280 <td align="left" valign="top">Write: <b><tt>pause_cpu(i)</tt></b>.
281 Stops all CPUs <i>except</i> CPU i.</td>
282 </tr>
283 <tr>
284 <td align="left" valign="top"><tt>0x0060</tt></td>
285 <td align="left" valign="top">Write: <b><tt>unpause_cpu(i)</tt></b>.
286 Unpauses all CPUs <i>except</i> CPU i.</td>
287 </tr>
288 <tr>
289 <td align="left" valign="top"><tt>0x0070</tt></td>
290 <td align="left" valign="top">Write: <b><tt>startupstack(addr)</tt></b>.
291 Sets the startup stack address. (CPUs started with
292 startupcpu() above will have their stack pointer
293 set to this value.)</td>
294 </tr>
295 <tr>
296 <td align="left" valign="top"><tt>0x0080</tt></td>
297 <td align="left" valign="top">Read: <b><tt>hardware_random()</tt></b>.
298 This produces a "random" number.</td>
299 </tr>
300 <tr>
301 <td align="left" valign="top"><tt>0x0090</tt></td>
302 <td align="left" valign="top">Read: <b><tt>memory()</tt></b>.
303 Returns the number of bytes of RAM in the system.</td>
304 </tr>
305 <tr>
306 <td align="left" valign="top"><tt>0x00a0</tt></td>
307 <td align="left" valign="top">Write: <b><tt>ipi_one((nr &lt;&lt; 16) + cpuid)</tt></b>.
308 Sends IPI <tt>nr</tt> to a specific CPU.</td>
309 </tr>
310 <tr>
311 <td align="left" valign="top"><tt>0x00b0</tt></td>
312 <td align="left" valign="top">Write: <b><tt>ipi_many((nr &lt;&lt; 16) + cpuid)</tt></b>.
313 Sends IPI <tt>nr</tt> to all CPUs <i>except</i>
314 the specified one.</td>
315 </tr>
316 <tr>
317 <td align="left" valign="top">0x00c0</tt></td>
318 <td align="left" valign="top">Read: <b><tt>ipi_read()</tt></b>.
319 Returns the next pending IPI. 0 is returned if there is no
320 pending IPI (so 0 shouldn't be used for valid IPIs).
321 Hardware int 6 is deasserted when the IPI queue is empty.
322 <br>Write: <b><tt>ipi_flush()</tt></b>.
323 Clears the IPI queue, discarding any pending IPIs.</td>
324 </tr>
325 </table>
326 </td>
327 </tr>
328
329 <tr height="15">
330 <td height="15">&nbsp;</td>
331 </tr>
332
333 <tr>
334 <td align="left" valign="top">
335 <b><tt>fb</tt>:</b>
336 <p>A simple linear framebuffer, for graphics output.
337 640 x 480 pixels, 3 bytes per pixel (red, green, blue, 8 bits each).
338 <p>Source code:&nbsp;&nbsp;<font color="#0000f0"><tt>src/devices/dev_fb.c</tt></font>
339 <br>Default physical address:&nbsp&nbsp;<font color="#0000f0">0x12000000</font>
340 </td>
341 <td></td>
342 <td align="left" valign="top">
343 <table border="0">
344 <tr>
345 <td align="left" valign="top"><i><u>Offset:</u></i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>
346 <td align="left" valign="top"><i><u>Effect:</u></i></td>
347 </tr>
348 <tr>
349 <td align="left" valign="top"><tt>0x00000-</tt><br><tt>0xe0fff</tt></td>
350 <td align="left" valign="top">Read: read pixel values.
351 <br>Write: write pixel values.</td>
352 </tr>
353 </table>
354 </td>
355 </tr>
356
357 <tr height="15">
358 <td height="15">&nbsp;</td>
359 </tr>
360
361 <tr>
362 <td align="left" valign="top">
363 <b><tt>disk</tt>:</b>
364 <p>Disk controller, which can read from and write
365 to disk images. It does not use interrupts; read and
366 write operations finish instantaneously.
367 <p>Source code:&nbsp;&nbsp;<font color="#0000f0"><tt>src/devices/dev_disk.c</tt></font>
368 <br>Default physical address:&nbsp&nbsp;<font color="#0000f0">0x13000000</font>
369 </td>
370 <td></td>
371 <td align="left" valign="top">
372 <table border="0">
373 <tr>
374 <td align="left" valign="top"><i><u>Offset:</u></i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>
375 <td align="left" valign="top"><i><u>Effect:</u></i></td>
376 </tr>
377 <tr>
378 <td align="left" valign="top"><tt>0x0000</tt></td>
379 <td align="left" valign="top">Write: Set the offset (in bytes) from the beginning
380 of the disk image. This offset will be used for the next read/write operation.</td>
381 </tr>
382 <tr>
383 <td align="left" valign="top"><tt>0x0010</tt></td>
384 <td align="left" valign="top">Write: Select the SCSI ID to be used in the next
385 read/write operation.</td>
386 </tr>
387 <tr>
388 <td align="left" valign="top"><tt>0x0020</tt></td>
389 <td align="left" valign="top">Write: Start a read or write operation.
390 (Writing <tt>0</tt> means a Read operation, a <tt>1</tt> means a
391 Write operation.)</td>
392 </tr>
393 <tr>
394 <td align="left" valign="top"><tt>0x0030</tt></td>
395 <td align="left" valign="top">Read: Get status of the last operation.
396 (Status 0 means failure, non-zero means success.)</td>
397 </tr>
398 <tr>
399 <td align="left" valign="top"><tt>0x4000-</tt><br><tt>0x41ff</tt>&nbsp;&nbsp;&nbsp;</td>
400 <td align="left" valign="top">Read/Write: 512 bytes data buffer.</td>
401 </tr>
402 </table>
403 </td>
404 </tr>
405
406 <tr height="15">
407 <td height="15">&nbsp;</td>
408 </tr>
409
410 <tr>
411 <td align="left" valign="top">
412 <b><tt>ether</tt>:</b>
413 <p>A simple ethernet controller, enough to send
414 and receive packets on a simulated network.
415 <p>Source code:&nbsp;&nbsp;<font color="#0000f0"><tt>src/devices/dev_ether.c</tt></font>
416 <br>Default physical address:&nbsp&nbsp;<font color="#0000f0">0x14000000</font>
417 </td>
418 <td></td>
419 <td align="left" valign="top">
420 <table border="0">
421 <tr>
422 <td align="left" valign="top"><i><u>Offset:</u></i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>
423 <td align="left" valign="top"><i><u>Effect:</u></i></td>
424 </tr>
425 <tr>
426 <td align="left" valign="top"><tt>0x0000-</tt><br><tt>0x3fff</tt></td>
427 <td align="left" valign="top">Read/write buffer for the packet to be sent/received.</td>
428 </tr>
429 <tr>
430 <td align="left" valign="top"><tt>0x4000</tt></td>
431 <td align="left" valign="top">Read: status word, one or more of these:
432 <br><tt>0x01</tt>&nbsp;=&nbsp;something was received (because of
433 the last command)
434 <br><tt>0x02</tt>&nbsp;=&nbsp;more packets are available
435 <br><i>NOTE:</i> Whenever the status word is non-zero,
436 an interrupt is asserted. Reading the status word
437 clears it, and deasserts the interrupt.</td>
438 </tr>
439 <tr>
440 <td align="left" valign="top"><tt>0x4010</tt></td>
441 <td align="left" valign="top">Read: get the Length of the received packet
442 <br>Write: set the Length of the next packet to transmit</td>
443 </tr>
444 <tr>
445 <td align="left" valign="top"><tt>0x4020</tt></td>
446 <td align="left" valign="top">Write: command:
447 <br><tt>0x00:</tt>&nbsp;receive a packet
448 <br><tt>0x01:</tt>&nbsp;send a packet</td>
449 </tr>
450 </table>
451 </td>
452 </tr>
453
454 </table></center>
455
456 <p>
457 While these devices may resemble real-world hardware, they are
458 intentionally made simpler to use. (An exception is the framebuffer;
459 some machines actually have simple linear framebuffers like this.)
460
461 <p>If the physical address is <tt>0x10000000</tt>, then for MIPS that
462 means that it can be accessed at virtual address
463 <tt>0xffffffffb0000000</tt>. (Actually it can be accessed at
464 <tt>0xffffffff90000000</tt> too, but devices should usually be accessed in
465 a non-cached manner.)
466
467 <p> (When using the PPC test machine (<tt>testppc</tt>), the addresses are
468 <tt>0x10000000</tt>, <tt>0x11000000</tt> etc., so no need to add any
469 virtual displacement.)
470
471 <p>The <b><tt>mp</tt></b>, <b><tt>disk</tt></b>, and <b><tt>ether</tt></b>
472 devices are agnostic when it comes to word-length. For example, when
473 reading offset <tt>0x0000</tt> of the <b><tt>mp</tt></b>
474 device, you may use any kind of read (an 8-bit read will work just as well
475 as a 64-bit read, although the value will be truncated to 8 bits in the
476 first case). You can <i>not</i>, however, read one byte from <tt>0x0000</tt>
477 and one from <tt>0x0001</tt>, and combine the result. The read from
478 <tt>0x0001</tt> will be invalid.
479
480 <p>The <b><tt>cons</tt></b> device should be accessed using 8-bit reads
481 and writes. Doing a getchar() (ie reading from offset <tt>0x00</tt>)
482 returns <tt>0</tt> if no character was available.
483
484 <p>On MIPS, the <b><tt>cons</tt></b> device is hardwired to interrupt 2
485 (the lowest hardware interrupt). Whenever a character is available, the
486 interrupt is asserted. When there are no more available characters, the
487 interrupt is deasserted. (Remember that the interrupt has to be enabled in
488 the status register of the system coprocessor.)
489
490 <p>The <b><tt>ether</tt></b> device is hardwired to interrupt 3.
491
492 <p>The IPIs controlled by the <b><tt>mp</tt></b> device are hardwired to
493 interrupt 6. Whenever an IPI is "sent", interrupt 6 is asserted on the
494 target CPU(s), and the IPI number is added last in the IPI queue for that
495 CPU. It is then up to that CPU to read from offset <tt>0x00c0</tt>, to
496 figure out what kind of IPI it was.
497
498 <p>A simple tutorial on how to use the <tt>disk</tt> device, if not clear
499 from the description above, can be found here: <a
500 href="test_disk.c"><tt>test_disk.c</tt></a>
501
502
503
504
505
506 <p><br>
507 <a name="experiments"></a>
508 <h3>Experiments with other kernels and guest OSes:</h3>
509
510 <p>
511 Free Operating system kernels and other test programs can be
512 downloaded from various places on the Internet. Other kinds of software
513 (non-Free), if obsolete enough (such as Ultrix or Windows NT), can
514 sometimes be found in garbage containers, or perhaps be found for a cheap
515 price on ebay or at a flea market.
516
517 <p>
518 <font color="#ff0000">
519 NOTE: This is <i>not</i> a list of kernels that work in the emulator.
520 It is a list of kernels that I have experimented with.
521 </font>
522
523 <p>
524 For more information about which of these that actually work, read the
525 <a href="intro.html#guestos">section in the Introduction chapter</a>
526 that lists guest operating systems. If a system is not listed there, it
527 probably doesn't work in GXemul.
528
529 <p>
530 <ul>
531 <li>DECstation:
532 <ul>
533 <li><a href="http://www.netbsd.org/Ports/pmax/">NetBSD/pmax</a>:
534 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/pmax/binary/kernel/netbsd-INSTALL.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/pmax/binary/kernel/netbsd-INSTALL.gz</a>
535 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/pmax/binary/kernel/netbsd-INSTALL.symbols.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/pmax/binary/kernel/netbsd-INSTALL.symbols.gz</a>
536 <br>gunzip the files, and run the emulator with <b><tt>-e 3max -q -N -XY2</tt></b>
537 for a graphical framebuffer console. Remove <b><tt>-XY2</tt></b> and <b><tt>-N</tt></b> to use serial (stdin/stdout) console.
538 Read <a href="guestoses.html#netbsdinstall">this section</a> about how to install NetBSD/pmax onto a harddisk image.
539 <p>
540 <li><a href="http://www.openbsd.org/pmax.html">OpenBSD/pmax</a>:
541 <br><a href="ftp://ftp.se.openbsd.org/pub/OpenBSD/2.8/pmax/bsd">ftp://ftp.se.openbsd.org/pub/OpenBSD/2.8/pmax/bsd</a>
542 <br>This is an old OpenBSD kernel in a.out format. Try <b><tt>-e 3max</tt></b>.
543 <br>Read <a href="guestoses.html#openbsdinstall">this section</a> about how to install OpenBSD/pmax onto a harddisk image.
544 It's a bit more complicated than installing NetBSD/pmax, but
545 it usually works.
546 <p>
547 <li>Linux for DECstation:
548 <br>Read <a href="guestoses.html#declinux">this section</a> about how to run a Debian Linux install kernel.
549 <br>Here are some older kernels (these don't support framebuffer, I think):
550 <a href="http://www.xs4all.nl/~vhouten/mipsel/kernels.html">http://www.xs4all.nl/~vhouten/mipsel/kernels.html</a>
551 <br>Note: Make sure you add <b><tt>-CR4400</tt></b> to the command line for
552 R4000 kernels, as Linux doesn't autodetect CPU type at runtime.
553 <br>Linux also doesn't detect automatically whether you are booting
554 in graphical or serial console mode, so you need to add
555 <tt><b>-o 'console=ttyS3'</b></tt> or similar for serial
556 console mode.
557 <p>
558 <li><a href="http://www.cs.berkeley.edu/projects/sprite/retrospective.html">Sprite</a>:
559 <br>The Unix Heritage Society (TUHS, <a href="http://www.tuhs.org">www.tuhs.org</a>)
560 has preserved a copy of a harddisk image for a DECstation
561 5000/200 (3MAX).
562 <br>Read <a href="guestoses.html#sprite">this section</a> for more information
563 about running this harddisk image in the emulator.
564 <p>
565 <li><a href="http://www-2.cs.cmu.edu/afs/cs/project/mach/public/www/mach.html">Mach</a>:
566 <br>Important! Run <b><tt>./configure --caches; make</tt></b>
567 <br>Also important: This is broken right now. :-(
568 <br>Download <a href="http://lost-contact.mit.edu/afs/athena/user/d/a/daveg/Info/Links/Mach/src/release/">http://lost-contact.mit.edu/afs/athena/user/d/a/daveg/Info/Links/Mach/src/release</a>/<a href="http://lost-contact.mit.edu/afs/athena/user/d/a/daveg/Info/Links/Mach/src/release/pmax.tar.Z">pmax.tar.Z</a>
569 <br><tt><b>tar xfvz pmax.tar.Z pmax_mach/special/mach.boot.MK83.STD+ANY</b></tt>
570 <br><tt><b>gxemul -e 3max -X pmax_mach/special/mach.boot.MK83.STD+ANY</b></tt>
571 </ul>
572 </li>
573
574 <p>
575
576 <li>SGI:
577 <ul>
578 <li><a href="http://www.netbsd.org/Ports/sgimips/">NetBSD/sgimips</a>:
579 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/sgimips/binary/kernel/netbsd-INSTALL32_IP3x.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/sgimips/binary/kernel/netbsd-INSTALL32_IP3x.gz</a>
580 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/sgimips/binary/kernel/netbsd-INSTALL32_IP3x.symbols.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/sgimips/binary/kernel/netbsd-INSTALL32_IP3x.symbols.gz</a>
581 <br>gunzip, and try running with <b><tt>-e ip32</tt></b>.
582 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/sgimips/binary/kernel/netbsd-INSTALL32_IP2x.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/sgimips/binary/kernel/netbsd-INSTALL32_IP2x.gz</a>
583 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/sgimips/binary/kernel/netbsd-INSTALL32_IP2x.symbols.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/sgimips/binary/kernel/netbsd-INSTALL32_IP2x.symbols.gz</a>
584 <br>gunzip, and try running with <b><tt>-e ip22</tt></b> (or <b><tt>ip24</tt></b> or <b><tt>ip20</tt></b>).
585 <p>
586 <li>Linux/SGI:
587 <br>Some kernels are available here: <a href="http://www.linux-mips.org/~glaurung/">http://www.linux-mips.org/~glaurung/</a>
588 <br>Try running with <b><tt>-e ip32 -X</tt></b> for a graphical framebuffer, or
589 <b><tt>-e ip32 -o 'console=ttyS0'</tt></b> for serial console.
590 <br>Adding <b><tt>-b</tt></b> (bintrans) might work sometimes.
591 <br>(You need to add <b><tt>-CR5000</tt></b> if you're trying to run
592 a kernel compiled for R5000, because Linux doesn't autodetect
593 the CPU type at runtime.)
594 <br>Also: <a href="http://www.tal.org/~milang/o2/kernels/">http://www.tal.org/~milang/o2/kernels</a>/<a href="http://home.tal.org/~milang/o2/kernels/vmlinux64-2.6.8.1-IP32">vmlinux64-2.6.8.1-IP32</a>
595 <br>Try <b><tt>-e ip32 -X -CR5000 vmlinux64-2.6.8.1-IP32</tt></b>.
596 <br>And also some IP27 kernels:
597 <a href="http://www.total-knowledge.com/progs/mips/kernels/vmlinux.ip27-20040428">http://www.total-knowledge.com/progs/mips/kernels/vmlinux.ip27-20040428</a>
598 and
599 <a href="http://www.total-knowledge.com/progs/mips/kernels/vmlinux.ip27-20040528.bz2">http://www.total-knowledge.com/progs/mips/kernels/vmlinux.ip27-20040528.bz2</a>
600 (but unfortunately these lack symbols).
601 <br>Try the IP27 kernels with <b><tt>-e ip27 -t</tt></b>.
602 <p>
603 <li><a href="http://www.openbsd.org/sgi.html">OpenBSD/sgi</a>:
604 <br><a href="ftp://ftp.openbsd.org/pub/OpenBSD/3.7/sgi/bsd.rd">ftp://ftp.openbsd.org/pub/OpenBSD/3.7/sgi/bsd.rd</a>
605 <br>More recent snapshots can be found at <a href="ftp://ftp.OpenBSD.org/pub/OpenBSD/snapshots/sgi/">ftp://ftp.OpenBSD.org/pub/OpenBSD/snapshots/sgi/</a>.
606 <br>Try <b><tt>gxemul -e ip32 bsd.rd</tt></b>
607 <p>
608 <li><a href="http://www.freebsd.org/platforms/mips.html">FreeBSD/MIPS</a>:
609 I don't think public binary snapshots are available yet.
610 <p>
611 <li>arcdiag:
612 <br>The NetBSD people have also made available an "arcdiag" for SGI-IP22:
613 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/arch/sgimips/arcdiag.ip22">ftp://ftp.netbsd.org/pub/NetBSD/arch/sgimips/arcdiag.ip22</a>
614 <br>Try running <tt><b>gxemul -e ip22 -x arcdiag.ip22</b></tt>.
615 </ul>
616 </li>
617
618 <p>
619
620 <li>ARC:
621 <ul>
622 <li><a href="http://www.netbsd.org/Ports/arc/">NetBSD/arc</a>:
623 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/arc/binary/kernel/netbsd-RAMDISK.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/arc/binary/kernel/netbsd-RAMDISK.gz</a>
624 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/arc/binary/kernel/netbsd-RAMDISK.symbols.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/arc/binary/kernel/netbsd-RAMDISK.symbols.gz</a>
625 <br>gunzip, and try with <b><tt>-e rd94</tt></b>.
626 <br>(You may also try other ARC models.)
627 <br>Read <a href="guestoses.html#netbsdarcinstall">this section</a> about how
628 to install NetBSD/arc 1.6.2 onto a harddisk image.
629 <br>(NetBSD/arc 2.0 doesn't work with disk images yet in GXemul.)
630 <p>
631 <li><a href="http://www.openbsd.org/arc.html">OpenBSD/arc</a>:
632 <br><a href="ftp://ftp.se.openbsd.org/pub/OpenBSD/2.3/arc/bsd.rd.elf">ftp://ftp.se.openbsd.org/pub/OpenBSD/2.3/arc/bsd.rd.elf</a>
633 <br>Try running with <b><tt>-X -e pica</tt></b> or <b><tt>-X -e tyne</tt></b>.
634 <br>Read <a href="guestoses.html#openbsdarcinstall">this section</a> about how
635 to install OpenBSD/arc onto a harddisk image.
636 <p>
637 <li>Linux:
638 <br><a href="ftp://ftp.linux-mips.org/pub/linux/mips/mipsel-linux/boot/vmlinux-m700-2.1.131.gz">ftp://ftp.linux-mips.org/pub/linux/mips/mipsel-linux/boot/vmlinux-m700-2.1.131.gz</a>
639 <br>gunzip, and run with <b><tt>-v -J -X -N -e m700</tt></b> (Olivetti M700)
640 <br>(This probably doesn't work anymore.)
641 <p>
642 <li>Pandora:
643 <br><a href="ftp://ftp.linux-mips.org/pub/linux/mips/ancient/milo/">ftp://ftp.linux-mips.org/pub/linux/mips/ancient/milo</a>/<a href="ftp://ftp.linux-mips.org/pub/linux/mips/ancient/milo/milo-0.27.1.tar.gz">milo-0.27.1.tar.gz</a>
644 <br>A generic test/diagnostics program for ARC-based machines.
645 <br>Run with <b><tt>-e r94 milo-0.27.1/pandora</tt></b>
646 <p>
647 <li>arcdiag:
648 <br>Precompiled binary:<a href="ftp://ftp.netbsd.org/pub/NetBSD/arch/arc/arcdiag">ftp://ftp.netbsd.org/pub/NetBSD/arch/arc/arcdiag</a>
649 <br>(alternative: <a href="http://www.sensi.org/~alec/mips/arcdiag">http://www.sensi.org/~alec/mips/arcdiag</a>)
650 <br>A generic test/diagnostics program for ARC-based machines.
651 <br>Run with <b><tt>-e pica arcdiag</tt></b> (or some other ARC mode).
652 <br>Example arcdiag output (from real machines):
653 <br><a href="http://mail-index.netbsd.org/port-arc/2000/10/18/0001.html">http://mail-index.netbsd.org/port-arc/2000/10/18/0001.html</a> (Olivetti M700-10)
654 <br><a href="http://www.sensi.org/~alec/mips/arcdiag.txt">http://www.sensi.org/~alec/mips/arcdiag.txt</a> (PICA-61)
655 <br><a href="http://mail-index.netbsd.org/port-arc/2000/10/14/0000.html">http://mail-index.netbsd.org/port-arc/2000/10/14/0000.html</a> (Deskstation Tyne)
656 <br><a href="http://mail-index.netbsd.org/port-arc/2004/02/01/0001.html">http://mail-index.netbsd.org/port-arc/2004/02/01/0001.html</a> (NEC RISCserver 4200)
657 <br><a href="http://mirror.aarnet.edu.au/pub/NetBSD/misc/chs/arcdiag.out">http://mirror.aarnet.edu.au/pub/NetBSD/misc/chs/arcdiag.out</a> (NEC-R96)
658 <br>For some machines, such as <tt><b>-e pica</b></tt>, you can
659 add <b><tt>-X</tt></b> to boot with a graphical VGA-style
660 console. This however is probably a bit unstable and/or
661 broken right now.
662 <p>
663 <li>Windows NT:
664 <br>Put a "Windows NT 4.0 for MIPS" CDROM (or similar) into
665 your CDROM drive. (On FreeBSD systems, it is usually called
666 /dev/cd0c or similar. Change that to whatever the CDROM
667 is called on your system, or the name of a raw .iso image.)
668 <br>I have tried this with the Swedish version, but it might
669 work with other versions too.<pre>
670 $ <b><tt>dd if=/dev/zero of=winnt_test.img bs=1024 count=1 seek=999000</tt></b>
671 $ <b><tt>gxemul -X -e pica -d winnt_test.img -d bc6:/dev/cd0c -j MIPS\\ARCINST</tt></b>
672 $ <b><tt>gxemul -X -e pica -d winnt_test.img -d bc6:/dev/cd0c -j MIPS\\SETUPLDR</tt></b>
673 </pre> <br><tt>ARCINST</tt> tries to prepare the disk image for installation. (It <i>almost</i> works.)
674 <br><tt>SETUPLDR</tt> should load some drivers from the cdrom, but then it crashes with a bluescreen.
675 </ul>
676 </li>
677
678 <p>
679
680 <li>HPCmips:
681 <ul>
682 <li><a href="http://www.netbsd.org/Ports/hpcmips/">NetBSD/hpcmips</a>:
683 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/hpcmips/installation/">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/hpcmips/installation</a>/<a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/hpcmips/installation/netbsd.gz">netbsd.gz</a>
684 <br>Try <b><tt>gxemul -X -e mobilepro770 netbsd</tt></b>
685 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/hpcmips/binary/kernel/netbsd-GENERIC.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/hpcmips/binary/kernel/netbsd-GENERIC.gz</a>
686 <br>Try <b><tt>gxemul -X -e mobilepro770 netbsd-GENERIC</tt></b>
687 <p>
688 <li>Linux for BE300:
689 <br><a href="http://www.linux4.be/2004/linux4be20040908.zip">http://www.linux4.be/2004/linux4be20040908.zip</a>
690 <br>Try <b><tt>gxemul -X -e be300 vmlinux</tt></b>
691 <p>
692 <li>Linux for Agenda VR3:
693 <br>Download <a href="http://agenda-snow.sourceforge.net/kernel-old-versions/binary/">http://agenda-snow.sourceforge.net/kernel-old-versions/binary</a>/<a href="http://agenda-snow.sourceforge.net/kernel-old-versions/binary/root1.2.6.kernel-8.00">root1.2.6.kernel-8.00</a>
694 <br>and <a href="http://vr3.uid0.sk/cd/Software/VR3_Distributions/H2O/">http://vr3.uid0.sk/cd/Software/VR3_Distributions/H2O</a>/<a href="http://vr3.uid0.sk/cd/Software/VR3_Distributions/H2O/root1.2.6.cramfs">root1.2.6.cramfs</a>.
695 <br>(or <a href="http://www.ipsec.info/~www/agenda/dream-1-noxip.cramfs">http://www.ipsec.info/~www/agenda/dream-1-noxip.cramfs</a>)
696 <br>Try <b><tt>gxemul -X -e vr3 -x 0xbf200000:root1.2.6.cramfs 0xbf000000:0:0xbf0005e0:root1.2.6.kernel-8.00</tt></b>
697 <br>(or replace root1.2.6.cramfs with dream-1-noxip.cramfs)
698 <br>Remove <b><tt>-X</tt></b> to try with serial console instead of X, and
699 remove <b><tt>-b</tt></b> to try without (old) bintrans.
700 <br>Add <b><tt>-o 'init=/bin/sh'</tt></b> to boot into a single-user shell.
701 <br>Add <b><tt>-o 'init=/sbin/restore_defaults'</tt></b> to run
702 a <tt>/sbin/restore_defaults</tt> (attempt to initialize the
703 flash memory).
704 <p>
705 <li>Linux for MobilePro etc.:
706 <br><a href="http://pc1.peanuts.gr.jp/~kei/Hard-Float/Kernels/">http://pc1.peanuts.gr.jp/~kei/Hard-Float/Kernels/</a>
707 <br>Uncompress the archive to get a kernel, vmlinux-800 for example.
708 <br>Try <b><tt>./gxemul -X -o 'root=/dev/hda1' -d r:disk.img -d r:disk.img -e mobilepro800 vmlinux-800</tt></b>
709 <br>where disk.img is an ext2fs filesystem with contents from
710 <a href="http://pc1.peanuts.gr.jp/~kei/Hard-Float/Miniroots/miniroot-20010330.tar.bz2">http://pc1.peanuts.gr.jp/~kei/Hard-Float/Miniroots/miniroot-20010330.tar.bz2</a>
711 <br>(Note the double disk arguments.)
712 <br>Note 2: This doesn't work yet.
713 <p>
714 <li><a href="http://www.disorder.ru/openbsd/be300/">OpenBSD/be300</a>:
715 <br><a href="http://www.disorder.ru/openbsd/be300/bsd.rd">http://www.disorder.ru/openbsd/be300/bsd.rd</a>
716 <br>Try <b><tt>gxemul -X -e be300 bsd.rd</tt></b>
717 <br>Note: bintrans might be buggy, so you can try with -B if you want to.
718 </ul>
719 </li>
720
721 <p>
722
723 <li>Cobalt:
724 <ul>
725 <li><a href="http://www.netbsd.org/Ports/cobalt/">NetBSD/cobalt</a>:
726 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-1.6.2/cobalt/binary/kernel/netbsd-GENERIC.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-1.6.2/cobalt/binary/kernel/netbsd-GENERIC.gz</a>
727 <br>gunzip, and run with <b><tt>-E cobalt</tt></b>
728 <br>(Or read <a href="guestoses.html#netbsdcobaltinstall">this
729 section</a> on how to install NetBSD/cobalt onto a harddisk image.)
730 <p>
731 <li>Linux:
732 <br><a href="http://people.debian.org/~pm/mips-cobalt/nfsroot/vmlinux_raq-2800.gz">http://people.debian.org/~pm/mips-cobalt/nfsroot/vmlinux_raq-2800.gz</a>
733 <br>gunzip, and run with <b><tt>-E cobalt</tt></b>
734 <p>
735 <br><a href="http://dev.gentoo.org/~kumba/mips/cobalt/netboot/cobalt-netboot-20040428.img.gz">http://dev.gentoo.org/~kumba/mips/</a>
736 <br> <a href="http://dev.gentoo.org/~kumba/mips/cobalt/netboot/cobalt-netboot-20040428.img.gz">cobalt/netboot/cobalt-netboot-20040428.img.gz</a>
737 <br><b><tt>gxemul -E cobalt cobalt-netboot-20040428.img.gz</tt></b>
738 <p>
739 <li>CoLo:
740 <br><a href="http://www.colonel-panic.org/cobalt-mips/colo/colo-1.19.tar.gz">http://www.colonel-panic.org/cobalt-mips/colo/colo-1.19.tar.gz</a>
741 <br><tt><b>tar zxvf colo-1.19.tar.gz colo-1.19/binaries/colo-rom-image.bin</b></tt>
742 <br><tt><b>gxemul -Q -Ecobalt -v 0xbfc00000:colo-1.19/binaries/colo-rom-image.bin</b></tt>
743 <br>(This doesn't work yet.)
744 </ul>
745 </li>
746
747 <p>
748
749 <li>Playstation 2:
750 <ul>
751 <li><a href="http://www.netbsd.org/Ports/playstation2/">NetBSD/playstation2</a>:
752 <br>NetBSD/playstation2 snapshot kernels are available here: (RAMDISK and GENERIC)
753 <br><a href="ftp://ftp.NetBSD.org/pub/NetBSD/arch/playstation2/snapshot/20020327/installation/netbsd.gz">ftp://ftp.NetBSD.org/pub/NetBSD/arch/playstation2/snapshot/20020327/installation/netbsd.gz</a>
754 <br><a href="ftp://ftp.NetBSD.org/pub/NetBSD/arch/playstation2/snapshot/20020327/binary/kernel/netbsd-GENERIC.gz">ftp://ftp.NetBSD.org/pub/NetBSD/arch/playstation2/snapshot/20020327/binary/kernel/netbsd-GENERIC.gz</a>
755 <br>Try running with <b><tt>-X -E playstation2</tt></b> (<b><tt>-X</tt></b> is required, for the framebuffer).
756
757 <p>
758 <li>Linux:
759 <br>A Linux kernel (2.2.21-pre1-xr7) is available from
760 <a href="http://playstation2-linux.com/projects/xrhino-kernel/">http://playstation2-linux.com/projects/xrhino-kernel/</a>
761 <br>Try running with <b><tt>-X -E playstation2</tt></b> (<b><tt>-X</tt></b> is required, for the framebuffer).
762 </ul>
763 </li>
764
765 <p>
766
767 <li>EVBMIPS:
768 <ul>
769 <li><a href="http://www.netbsd.org/Ports/evbmips/">NetBSD/evbmips</a>:
770 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0.2/evbmips-mipseb/binary/kernel/">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0.2/evbmips-mipseb/binary/kernel</a>/<a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0.2/evbmips-mipseb/binary/kernel/netbsd-MALTA.gz">netbsd-MALTA.gz</a>
771 <br><b><tt>gxemul -e malta netbsd-MALTA</tt></b>
772 <br>The default CPU is a 5Kc (MIPS64). Add
773 <tt>-C 4Kc</tt> to use a MIPS32 CPU instead.
774 <br>(NetBSD/evbmips runs in 32-bit mode on MIPS64 anyway...)
775 <br>Read <a href="guestoses.html#netbsdevbmipsinstall">this
776 section</a> on how to install NetBSD/evbmips onto a harddisk image.
777 <br>or
778 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0.2/evbmips-mipseb/binary/kernel/">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0.2/evbmips-mipseb/binary/kernel</a>/<a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0.2/evbmips-mipseb/binary/kernel/netbsd-PB1000.gz">netbsd-PB1000.gz</a>
779 <br><b><tt>gxemul -e pb1000 netbsd-PB1000</tt></b>
780 </ul>
781 </li>
782
783 </ul>
784
785 <p>
786 The following don't work at all, or just very very little.
787
788 <p>
789 <ul>
790 <li>Sony NeWS:
791 <ul>
792 <li><a href="http://www.netbsd.org/Ports/newsmips/">NetBSD/newsmips</a>:
793 <br>A NetBSD/newsmips kernel and corresponding symbols are
794 available here:
795 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/newsmips/binary/kernel/netbsd-INSTALL.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/newsmips/binary/kernel/netbsd-INSTALL.gz</a>
796 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/newsmips/binary/kernel/netbsd-INSTALL.symbols.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/newsmips/binary/kernel/netbsd-INSTALL.symbols.gz</a>
797 <br>Try running with <b><tt>-E sonynews</tt></b>.
798 <br>There's also a boot floppy available, but the emulator currently
799 doesn't support booting from it:
800 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-1.6/newsmips/installation/floppy/boot.fs">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-1.6/newsmips/installation/floppy/boot.fs</a>
801 </ul>
802 </li>
803
804 <p>
805
806 <li><a href="http://www.meshcube.org/">MeshCube</a>:
807 <ul>
808 <li>Linux:
809 <br>A Linux kernel is available from
810 <a href="http://www.meshcube.org/feed/stable/">http://www.meshcube.org/feed/stable</a>/<a href="http://www.meshcube.org/feed/stable/kernel-image-mtx_2.4.24-3_mipsel.ipk">kernel-image-mtx_2.4.24-3_mipsel.ipk</a>
811 <br>(This is a Debian package, you can use <tt><b>ar</b></tt> and
812 <tt><b>tar</b></tt> to extract kernel.img from it.)
813 <br>Try running with <b><tt>-E meshcube 0x80800000:kernel.img</tt></b>.
814 </ul>
815 </li>
816
817 <p>
818
819 <li><a href="http://www.seattlewireless.net/index.cgi/NetgearWG602">NetGear WG602</a>:
820 <ul>
821 <li>Linux:
822 <br>A Linux kernel is available from
823 <a href="ftp://downloads.netgear.com/files/wg602_v1715.zip">ftp://downloads.netgear.com/files/wg602_v1715.zip</a>
824 <br>(Unzip wg602_v1715.zip to get WG602_V1715.img.)
825 <br>Try running with <b><tt>-E netgear 0xbfc80000:0x40:WG602_V1715.img</tt></b>.
826 <br>(It takes some time to decompress the kernel, so be patient.)
827 <br>(This doesn't really work yet.)
828 </ul>
829 </li>
830
831 <p>
832
833 <li>Walnut (evbppc):
834 <ul>
835 <li><a href="http://www.netbsd.org/Ports/evbppc/">NetBSD/evbppc</a>:
836 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/evbppc/binary/kernel/netbsd-INSTALL_WALNUT.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/evbppc/binary/kernel/netbsd-INSTALL_WALNUT.gz</a>
837 <br>gunzip, and try the following:
838 <br><tt><b>gxemul -E walnut -v -t netbsd-INSTALL_WALNUT</b></tt>
839 </ul>
840 </li>
841
842 <p>
843
844 <li>Artesyn's PM/PPC board (pmppc):
845 <ul>
846 <li><a href="http://www.netbsd.org/Ports/pmppc/">NetBSD/pmppc</a>:
847 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/pmppc/binary/kernel/netbsd-INSTALL.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/pmppc/binary/kernel/netbsd-INSTALL.gz</a>
848 <br>gunzip, and try the following:
849 <br><tt><b>gxemul -E pmppc netbsd-INSTALL</b></tt>
850 </ul>
851 </li>
852
853 <p>
854
855 <li>Motorola Sandpoint (sandpoint):
856 <ul>
857 <li><a href="http://www.netbsd.org/Ports/sandpoint/">NetBSD/sandpoint</a>:
858 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/sandpoint/binary/kernel/netbsd-INSTALL.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/sandpoint/binary/kernel/netbsd-INSTALL.gz</a>
859 <br>gunzip, and try the following:
860 <br><tt><b>gxemul -E sandpoint -v -t netbsd-INSTALL</b></tt>
861 </ul>
862 </li>
863
864 <p>
865
866 <li>PReP:
867 <ul>
868 <li><a href="http://www.netbsd.org/Ports/prep/">NetBSD/prep</a>:
869 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/prep/binary/kernel/netbsd-INSTALL.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/prep/binary/kernel/netbsd-INSTALL.gz</a>
870 <br>gunzip, and try the following:
871 <br><tt><b>gxemul -E prep -v -t netbsd-INSTALL</b></tt>
872 <p>
873 <li>Linux:
874 <br><a href="http://jocelyn.mayer.free.fr/qemu-ppc/linux_images/2.4.25-PPC/vmlinux">http://jocelyn.mayer.free.fr/qemu-ppc/linux_images/2.4.25-PPC/vmlinux</a>
875 <br><tt><b>gxemul -E prep -v -t vmlinux</b></tt>
876 </ul>
877 </li>
878
879 <p>
880
881 <li>MacPPC:
882 <ul>
883 <li><a href="http://www.netbsd.org/Ports/macppc/">NetBSD/macppc</a>:
884 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/macppc/binary/kernel/">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/macppc/binary/kernel</a>/<a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/macppc/binary/kernel/netbsd-INSTALL.gz">netbsd-INSTALL.gz</a>
885 <br><tt><b>gxemul -E macppc -e g4 -t netbsd-INSTALL</b></tt>
886 <p>
887 <li><a href="http://www.openbsd.org/macppc.html">OpenBSD/macppc</a>:
888 <br><a href="ftp://ftp.openbsd.org/pub/OpenBSD/3.6/macppc/">ftp://ftp.openbsd.org/pub/OpenBSD/3.6/macppc</a>/<a href="ftp://ftp.openbsd.org/pub/OpenBSD/3.6/macppc/bsd.rd">bsd.rd</a>
889 <br><tt><b>gxemul -E macppc -e g4 -t bsd.rd</b></tt>
890 </ul>
891 </li>
892
893 <p>
894
895 <li>BeBox:
896 <ul>
897 <li><a href="http://www.netbsd.org/Ports/bebox/">NetBSD/bebox</a>:
898 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/arch/bebox/snapshot/19981119/">ftp://ftp.netbsd.org/pub/NetBSD/arch/bebox/snapshot/19981119</a>/<a href="ftp://ftp.netbsd.org/pub/NetBSD/arch/bebox/snapshot/19981119/kern.tgz">kern.tgz</a>
899 <br><tt><b>tar xvzf kern.tgz</b></tt>
900 <br><tt><b>gxemul -E bebox netbsd</b></tt>
901 <p>
902 <li><a href="http://www.bebox.nu/os.php?s=os/linux/index">Linux/bebox</a>:
903 <br><a href="http://www.bebox.nu/files/linux/BeBox-scsi-980610.gz">http://www.bebox.nu/files/linux/BeBox-scsi-980610.gz</a>
904 <br><tt><b>gunzip BeBox-scsi-980610.gz</b></tt>
905 <br><tt><b>gxemul -E bebox 0x3100:0x400:BeBox-scsi-980610</b></tt>
906 </ul>
907 </li>
908
909 <p>
910
911 <li>SPARC64:
912 <ul>
913 <li><a href="http://www.netbsd.org/Ports/sparc64/">NetBSD/sparc64</a>:
914 <br><a href="ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/sparc64/binary/kernel/netbsd-INSTALL.gz">ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.0/sparc64/binary/kernel/netbsd-INSTALL.gz</a>
915 <br>gunzip, and try the following:
916 <br><tt><b>gxemul -E ultra1 -v -i netbsd-INSTALL</b></tt>
917 <p>
918 <li><a href="http://www.openbsd.org/sparc64.html">OpenBSD/sparc64</a>:
919 <br><a href="ftp://ftp.openbsd.org/pub/OpenBSD/3.6/sparc64/bsd.rd">ftp://ftp.openbsd.org/pub/OpenBSD/3.6/sparc64/bsd.rd</a>
920 <br>rename to bsd.rd.gz, gunzip, and try the following:
921 <br><tt><b>gxemul -E ultra1 -v -i bsd.rd</b></tt>
922 </ul>
923 </li>
924 </ul>
925
926
927
928
929
930
931
932 </p>
933
934 </body>
935 </html>

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