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The UVM Multi-Language Open Architecture open-source library was recently updated with new features. The
hallmarks of this solution continue to be the ability to integrate verification
components of multiple languages and methodologies at the testbench level, expanding beyond
simple connectivity at the more limited data level, and the multi-vendor
Interestingly, multi-language is a bit of a misnomer – the
critical part of the name is Open Architecture.
For sure, this industry has verification IP written in multiple standard
languages – SystemVerilog, SystemC, and e – but that isn’t the whole
story. If language defined the verification
component, then AVM, VMM, OVM, and UVM verification components would all
interoperate without any modification or glue code because each one is written
in the same language – SystemVerilog. However,
the code needed to be organized into libraries with generally accepted
methodologies to create verification components that could be easily
reused. As a result, companies have
created many well-verified components that need a lot of additional code to
integrate into a coherent verification environment. By coherent we mean an environment with
organized phases, configuration, and control despite the different
libraries. When we add components from
other languages, it's easy to see that simple data connections between the
languages are quite necessary, but insufficient, to enable verification reuse.
The new UVM
ML-OA 1.3 builds on the foundation established in June with the initial
download posted on UVMWorld. The
important new feature is multi-language configuration. With this new feature, users can configure
integers, strings, and object values using the hierarchical paths established
when the environment is constructed.
Wildcards are permitted but the interpretation is the responsibility of
each integrated framework. The release
includes three new demos to help you become familiar with the new capability. In addition, there are several ease-of-use enhancements
aimed at making it easier to set up a multi-language environment and support for
g++ 4.1 and 4.4. The release notes and
documentation in the 1.3 tarball have more details on the new features and how
to use them.
UVM ML-OA goes beyond inter-language communication to
provide the integration that allows verification components to work together in
a coherent testbench. The download is
open source and known to run on all major simulators.
Cadence is also working with its partners to develop a portable
UVM-SC adapter that will enable running SystemC verification environments with UVM-ML-OA
using the SystemC support built into the simulator. Cadence will test the adapter with the Incisive
platform, and its partners will test it with the Mentor and Synopsys simulators.
So if you haven’t yet, come join the 2500 others who have
downloaded UVM ML throughout its history and your verification reuse will be more
=Adam Sherer, Incisive Product Manager