Starting README.

README.md

@@ -1 +1,85 @@
+Copilot: a stream DSL
+====================================
+Copilot is a stream (i.e., infinite lists) domain-specific language (DSL) in
+Haskell that compiles into embedded C.  Copilot is similar in spirit to
+languages like Lustre.  Copilot contains an interpreter, multiple back-end
+compilers, and other verification tools.  See the Examples section below.
 
+Resources
+=========
+Copilot is comprised of a number of sub-projects which are automatically
+installed when you install Copilot from Hackage, as described below:
+
+* [copilot-language](http://hackage.haskell.org/package/copilot-language) The
+  front-end of Copilot defining the user language.
+
+* [copilot-libraries](http://hackage.haskell.org/package/copilot-libraries)
+  User-supplied libraries for Copilot, including linear-temporal logic,
+  fault-tolerant voting, regular expressions, etc.
+
+* [copilot-core](http://hackage.haskell.org/package/copilot-core) The core
+  language, which efficiently represents Copilot expressions.  The core is only
+  of interest to implementers wishing to add a new back-end to Copilot.
+
+* [copilot-cbmc](http://hackage.haskell.org/package/copilot-cbmc) A tool to
+  generate a driver using CBMC, a third-party tool (see Dependencies below) that
+  proves that the code generated by different C back-ends is equivalent.
+  Currently, this includes the C99 back-end and the SBV back-end.
+
+* [copilot-c99](http://hackage.haskell.org/package/copilot-c99) A back-end that
+  translates to [Atom](http://hackage.haskell.org/package/copilot-cbmc) to
+  generate hard real-time C code.
+
+Optionally, you may which also to install
+
+* [copilot-sbv](http://hackage.haskell.org/package/copilot-sbv) Another back-end
+  that translates to [SBV](http://hackage.haskell.org/package/sbv), using its
+  code generator to generate hard real-time C code as well.  The ad
+
+* [copilot-discussion](http://hackage.haskell.org/package/copilot-discussion)
+  Contains a tutorial, todos, and other items regarding the Copilot system.
+
+Comments, bug reports, and patches are always welcome.  Send them to leepike @
+gmail.com
+
+Examples
+=========
+
+Please see the files under the [Examples]() directory for a number of examples
+showing the syntax, use of libraries, and use of the interpreter and back-ends.
+The examples is the best way to start.
+
+Installation
+============
+The Copilot library is cabalized. Assuming you have cabal and the GHC compiler
+installed (the [Haskell Platform](http://hackage.haskell.org/platform/) is the
+easiest way to obtain these), it should merely be a matter of running 
+
+         cabal install copilot
+
+with an Internet connection.  Please see the INSTALL file for installation
+details.
+
+Once the installation is done, you can run the executable `XXX` which will
+execute the regression test suite for sbv on your machine.
+
+Dependencies
+=============
+copilot-cbmc depends on the C model-checker, CBMC.
+[CBMC](http://www.cprover.org/cbmc/) is a bounded model-checker for C code.  We
+use CBMC to prove that two back-ends generating C generate semantically
+equivalent C, to help detect bugs in C back-ends.
+
+Copyright, License
+==================
+The Copilot library is distributed with the BSD3 license. The license file contains
+the [BSD3](http://en.wikipedia.org/wiki/BSD_licenses) verbiage.
+
+Thanks
+======
+Copilot was developed, in part, with support from NASA's Aviation Safety
+Program, Contract #NNL08AD13T.  Copilot was developed jointly by Galois,
+Inc. and the National Institute of Aerospace.
+
+The following people have contributed to Copilot: Lee Pike, Nis Wegmann,
+Sebastian Niller, Robin Morisset, Alwyn Goodloe, and Levent Erkok.