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==
The CSPIM MIPS simulator
==
More details about this project can be found at
http://zvrba.net/software/cspim.html

==
COPYRIGHT NOTICE
==

All files in this distribution, unless otherwise explicitly noted, are

  (c) 2008 Zeljko Vrba <zvrba.external@zvrba.net>

and are distributed under the following license:

  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to
  deal in the Software without restriction, including without limitation the
  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  sell copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  IN THE SOFTWARE.

==

==
HOW TO BUILD
==

Prerequisites:
--------------
- Working native compiler (e.g. gcc)
- Working cross-compiler which can generate little-endian MIPS I executables
- CMake (http://www.cmake.org)

This package has been developed and tested with both Sun's cc and gcc.  The
cross-compiler used was gcc configured for the mipsel-elf target; gcc -v
reports:

Target: mipsel-elf
Configured with: ../configure --prefix=/home/zvrba/COMPILE --disable-nls --target=mipsel-elf --disable-bootstrap --disable-libssp
Thread model: single
gcc version 4.2.3

1. To build the native tools (interpreter):
   ccmake . && make
2. To verify that the interpreter works correctly, follow the instructions in
   torture/README file.
3. To try out simple interactive demos, follow the instructions in
   demos/README file.


Self-simulation
---------------
Compile both HOSTED and non-HOSTED build.  This must be done in two separate
build directories.  Then, an extra executable is built, mipsapps/run-lvl1,
which should be run with hostapps/load-lvl1 (from the HOSTED build).  run-lvl1
can currently only run cputorture, since level2 simulation does not yet
forward system calls to level1 simulation.

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