gEDA-user: New gnucap development snapshot

[al davis <ad106@xxxxxxxxxxxxxxxx>]

There is a new development snapshot of gnucap available.

Changes:

1. Refinements to the level 8 and 49 (BSIM3) model.  All DC 
parameters are now correct, including substrate current.  There 
is still a problem with charge effects.  Some of the charge 
effects, but not all, are correctly modeled. 

2. Parsing of statements that have named parameters is more 
flexible.  Expressions are still not supported.  Surrounding 
parameter names with ' ', " ", { }, like some commercial 
simulators, now works.  It should no longer be necessary to 
identify which are nodes, etc, with parentheses.  The 
parentheses are still recommended for readability, but are not 
required.

3. All values, including array values like in PWL, and size 
dependent parameters like in the BSIM models, can have named 
parameters.

4. Some cases of incorrect elements descriptions are now handled 
more sensibly.  For example, leaving out a value is handled 
correctly.

5. DC sweeps can be nested, for now up to 4 deep.

6. C++ language standard corrections, so it compile with gcc 
4.1.


Issues still outstanding to be addressed before an official 
release:

1. BSIM3 charge effects.  Part of it is turned off because it 
causes convergence problems.  It is probably a simple error.  
Since the current state is an improvement over the last 
snapshot, and this is a development snapshot, I decided to 
release anyway.  This issue applies to BSIM1 and BSIM2 also.

2. Autoconf based build system.  (Thanks: Dan McMahill) I have 
code, just need to integrate it, test it, and verify 
maintainability.

3. The manual does not include changes since 0.34, the last 
official release.


You can get it at: 
Official site:
http://www.gnucap.org/devel/gnucap-2006-05-06.tar.gz
Mirrors:
http://www.geda.seul.org/dist/gnucap-2006-05-06.tar.gz