From: Suraj Kurapati <snk@...>
Date: 2006-12-08T08:24:09+09:00
Subject: [ANN] Ruby-VPI 12.0.0

Ruby-VPI is a Ruby interface to Verilog VPI. It lets you create
complex Verilog test benches easily and wholly in Ruby.

  Website:   http://ruby-vpi.rubyforge.org

  Install:   gem install ruby-vpi


Version 12.0.0 (2006-12-07)

Summary

This release adds support for the test/spec library, fixes
some bugs, and improves the user manual and generated
tests.

Notice

  ��� Icarus Verilog 0.8 has been demoted to a mostly
    acceptable status.

  ��� Generated Verilog benches no longer supply the -w
    option to the $ruby_init task.

  ��� The ruby-vpi/runner_proxy library now invokes test
    runners
      ��� just before exiting. Thus, you can invoke tasks in
        the main Rakefile before the test runners are
        invoked.
      ��� located within any directory that is a descendant
        of the current working directory.

  ��� The SIMULATOR_ARGS parameter of generated runners has
    been renamed to SIMULATOR_ARGUMENTS for clarity.

  ��� The automated test generator
      ��� no longer displays the backup status indicator.
      ��� now supplies a third argument to the MERGER
        command.
      ��� no longer replaces existing files with newly
        generated content during the update action.
        Instead, it now writes the newly generated output
        to a .new file and then invokes the MERGER command.

Detail

  ��� The Vpi::Handle class has two new methods: x! and z!,
    which set the handle���s logic value to unknown and high
    impedance respectively.

  ��� The tests for the simple up-counter example were
    randomly failing because the specifications were not
    asserting the design���s reset signal long enough. So the
    design was getting into weird states and behaving in a
    non-deterministic way. This problem has been fixed.

  ��� The user manual has been revised and some minor issues
    have been fixed.

Test generation

  ��� The automated test generator accepts new command-line
    options:
      ��� ���test-unit
      ��� ���test-spec
      ��� ���tspec

  ��� The automated test generator was crashing when parsing
    module parameters of an input file which did not have
    any module parameters. This has been fixed.

  ��� Generated Verilog benches now contain simpler clock
    generation code.

  ��� Generated runners now contain
      ��� a :setup task which is invoked before the simulator
        runs. It can be used to make preprations, such as
        converting Verilog header files into Ruby, for the
        simulation.
      ��� better explanations to accomodate new users.

  ��� Specifications generated in the generic format no
    longer contain a class that is instantiated in the
    generated Ruby bench.

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