nesC compiler

File Release Notes and Changelog

Release Name: v1.2.1

Notes:
This is version 1.2.1 of the nesC compiler.

Installation instructions are in INSTALL. Note that nesC needs patched
versions of the GNU assemblers for the avr and msp430 architectures. These
patched versions can be found at www.tinyos.net (look for the avr-binutils
and msp430-binutils distributions) - they are no longer distributed with
nesC.

Changes in nesC 1.2.1
=====================
- external types (nx_...) can now be passed as parameters and returned as
  results
- updates to XML dump information to support nesdoc
  in particular, remember typedef names
- bug fixes

Changes in nesC 1.2
===================
- generic components and interfaces. See doc/user/generics-1.2.txt. 
  nesdoc does not support generic components and interfaces (this should be 
  supported in the next release).
- configuration implementations and component specifications can now 
  include type and constant declarations; configuration implementations
  can refer to these types and constants. These changes are described
  alongside the generic component changes, in doc/user/generics-1.2.txt. 
- attributes (Java 1.5-style). See doc/user/attributes.txt.
- binary components. See doc/user/binary-components.txt.
- external types, a revamp of nesC 1.1.3's network types. See 
  doc/user/network-types.txt.
- "includes" is deprecated - use #include instead; note that you
  must use #ifndef/#define/#endif for #include'd files in the usual
  C style.
- macros in included files now work in ways that are similar to C
  (as long as you use #include instead of includes).
- support for compiling task/post into an interface + wiring: this
  allows the scheduler to be implemented as a component.
- return can be used in atomic statements (implicitly terminating
  the atomic statement).
- the patched AVR assembler has been unbundled from nesC.
- the ncc, mig and nesdoc scripts have been unbundled from nesC (they
  are now distributed with the other TinyOS tools).



Changes: