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Gabe Black 8966312785 X86: Decode the mysterious and elusive ffreep x87 instruction. 
The internet says this instruction was created by accident when an Intel CPU
failed to decode x87 instructions properly. It's been documented on a few rare
occasions and has generally worked to ensure backwards compatability. One
source claims that the gcc toolchain is basically the only thing that emits
it, and that emulators/binary translators like qemu and bochs implement it.

We won't actually implement it here since we're hardly implementing any other
x87 instructions either. If we were to implement it, it would behave the same
as ffree but then also pop the register stack.

http://www.pagetable.com/?p=16
2011-03-02 00:41:38 -08:00
build_opts X86: Build O3 by default in SE. 2011-02-02 18:17:16 -08:00
configs Configs: Explicitly import env in Benchmarks.py 2011-02-24 02:14:45 -08:00
ext Ext: Add X11 keysym header files to ext directory. 2011-02-09 22:27:37 -06:00
src X86: Decode the mysterious and elusive ffreep x87 instruction. 2011-03-02 00:41:38 -08:00
system Cleanup system directory to fit into modern M5 tree 2011-02-16 00:34:02 -06:00
tests X86: Update stats for the x86 o3 hello world regression. 2011-03-01 23:18:00 -08:00
util Util: Get rid of the make_release.py script. 2011-02-15 23:22:32 -08:00
.hgignore .hgignore: added src/doxygen 2010-07-27 20:00:38 -07:00
.hgtags Added tag Calvin_Submission for changeset 5de565c4b7bd 2009-11-18 11:55:42 -06:00
AUTHORS RELEASE: More changes to text 2007-11-01 21:07:49 -04:00
LICENSE Info: Clean up some info files. 2011-02-14 21:36:37 -08:00
README Info: Clean up some info files. 2011-02-14 21:36:37 -08:00
SConstruct SCons: Separately label the global non-sticky options. 2011-03-01 03:00:42 -08:00

README 

This is the M5 simulator.

For detailed information about building the simulator and getting
started please refer to http://www.m5sim.org.

Specific pages of interest are:
http://www.m5sim.org/wiki/index.php/Compiling_M5
http://www.m5sim.org/wiki/index.php/Running_M5

Short version:

1. If you don't have SCons version 0.98.1 or newer, get it from
http://wwww.scons.org.

2. If you don't have SWIG version 1.3.31 or newer, get it from
http://wwww.swig.org.

3. Make sure you also have gcc version 3.4.6 or newer, Python 2.4 or newer
(the dev version with header files), zlib, and the m4 preprocessor.

4. In this directory, type 'scons build/ALPHA_SE/tests/debug/quick'.  This
will build the debug version of the m5 binary (m5.debug) for the Alpha
syscall emulation target, and run the quick regression tests on it.

If you have questions, please send mail to m5-users@m5sim.org

WHAT'S INCLUDED (AND NOT)
-------------------------

The basic source release includes these subdirectories:
 - m5:
   - configs: simulation configuration scripts
   - ext: less-common external packages needed to build m5
   - src: source code of the m5 simulator
   - system: source for some optional system software for simulated systems
   - tests: regression tests
   - util: useful utility programs and files

To run full-system simulations, you will need compiled system firmware
(console and PALcode for Alpha), kernel binaries and one or more disk images. 
These files for Alpha are collected in a separate archive, m5_system.tar.bz2.
This file can he downloaded separately.

Depending on the ISA used, M5 may support Linux 2.4/2.6, FreeBSD, and the
proprietary Compaq/HP Tru64 version of Unix. We are able to distribute Linux
and FreeBSD bootdisks, but we are unable to distribute bootable disk images of
Tru64 Unix. If you have a Tru64 license and are interested in
obtaining disk images, contact us at m5-users@m5sim.org