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Steve Reinhardt b6ff600bca Add support for "serializing" instructions that flush
execution pipeline (Alpha trapb & excb).

Add support for write memory barriers (mostly impacts
store buffer).

Add StaticInst flag to indicate memory barriers, though
this is not modeled in the pipeline yet.

arch/alpha/isa_desc:
    Implement trapb, excb, mb, and wmb as insts with
    no execution effect (empty execute() function) but
    with flags that indicate their side effects.

    Also make sure every instruction that needs to go to
    the execute stage has a real opClass value, since we
    are now using No_OpClass to signal insts that can get
    dropped at dispatch.

    StaticInst::branchTarget() is now a const method.
cpu/static_inst.hh:
    Add flags to indicate serializing insts (trapb, excb) and
    memory and write barriers.

    Also declare some StaticInst methods as const methods.
dev/etherlink.hh:
sim/eventq.hh:
sim/serialize.cc:
sim/serialize.hh:
sim/sim_object.hh:
    Make name() return value const.

--HG--
extra : convert_revision : 39520e71469fa20e0a7446b2e06b494eec17a02c
2004-02-04 21:42:00 -08:00
arch Add support for "serializing" instructions that flush 2004-02-04 21:42:00 -08:00
base Change "Foo& foo" declarations to "Foo &foo". 2004-02-02 15:55:35 -08:00
cpu Add support for "serializing" instructions that flush 2004-02-04 21:42:00 -08:00
dev Add support for "serializing" instructions that flush 2004-02-04 21:42:00 -08:00
docs footer.html: 2003-10-15 20:49:12 -04:00
kern/tru64 wrap debugging stuff with #ifdef DEBUG 2004-01-29 22:30:14 -05:00
sim Add support for "serializing" instructions that flush 2004-02-04 21:42:00 -08:00
test Make each stat take up one full line. This allows us to use grep 2004-01-15 16:33:58 -05:00
util Miscellaneous minor fixes/improvements. 2003-12-17 09:43:03 -08:00
Doxyfile Add FALRU stats, tweak doxygen configs a bit. 2003-10-17 17:51:08 -04:00
LICENSE Import changeset 2003-10-07 10:41:54 -04:00
README Add a README for the release. Ideally we would move this up a level (to the 2003-10-17 09:32:00 -07:00

This is release m5_1.0_beta1 of the M5 simulator.

This file contains brief "getting started" information and release
notes.  For more information, see http://m5.eecs.umich.edu.  If you
have questions, please send mail to m5sim-users@lists.sourceforge.net.

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

Since you're reading this file, presumably you've managed to untar the
distribution.  The archive you've unpacked has three subdirectories:
 - m5: the simulator itself
 - m5-test: regression tests and scripts to run them
 - ext: less-common external packages needed to build m5
   (currently just "ply")

Although M5 is capable of full-system simulation, the only OS it
currently supports is the proprietary Compaq/HP Tru64 version of Unix.
We are thus unable to distribute bootable disk images freely.  If you
have a Tru64 license and are interested in obtaining disk images,
contact us at m5-dev@eecs.umich.edu.

GETTING STARTED
---------------

The following steps will build and test the simulator.  The variable
"$top" refers to the top directory where you've unpacked the files,
i.e., the one containing the m5, m5-test, and ext directories.

cd $top/m5/setup
./setup ALPHA		# set up build/ALPHA directory
cd $top/m5/build/ALPHA
make m5.opt		# use "-j N" if you've got an MP system
# wait for build...
cd $top/m5-test
./do-tests.pl -B ALPHA	# test what you just built
# wait for tests to run...
# should end with "finished do-tests successfully!"

If you run into errors regarding m5/arch/alpha/decoder.cc, just
"touch" that file to update its timestamp.  This file is generated
from a compact ISA description using a program written in Python.  If
you have Python 2.2.2 or later installed on your system, you should be
able to generate it yourself, but if you don't have Python (or have an
older version), you may run in to trouble.  Since we've shipped a
working copy of decoder.cc, it's not necessary to have Python to build
M5 (unless you start modifying the ISA decription).  Unfortunately,
sometimes make gets confused and tries to do so anyway.  The "touch"
should convince make to stop trying.