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技术文摘：免费的开源工具帮助科技员操作C++进行硬体验证

Science and technology of test and verify member Mike Mintz is certain: IC test and verify needs to manipulate object-oriented process designing science and technology. Accordingly, he established the software program of two open source code, in order to help science and technology member people operation C++ undertakes test and verify of strong put oneself in another's position works. In addition, he is working, still cooperate with the person compose the book that gives priority to a problem with this originally. Mintz designs firm work in a large system that he does not wish to disclose a name, the science and technology of presiding test and verify that his co-worker Robert Ekendahl is Sun Microsystems company member. They pass the Www.trusster.com website that they found, offer program of two open source code external. Among them a program calls Teal, it is a C++ kind library, it adapts C++ for Verilog, and provide line Cheng support. Another program calls Truss, it is the applied process frame that has C++ test and verify on Teal foundation. Mintz and Ekendahl still published the name is " have hard experience card with C++ : Professional manual " book. Mix with Teal directly in the accessary CD of manual Truss these two programs. "Be known according to me, had not had the concerned book of test and verify with C++ up to now, at the same time again a lot of people undertake test and verify in operation C++ . " Mintz says, "I think the experience that works 20 years of my software is written into the book is a favour. " Mintz thinks, c++ is current what can be used at test and verify is optimal object-oriented language. "Do not let me begin from SystemC, " his warning says, "It is a kind of very good language that build a model, but it to test and verify good for nothing. What it offers you is pattern plate -- C++ is general term, but do not use almost in the process that has test and verify. " people is expecting to do work of test and verify with C++ , however, this needs corresponding software ability to come true. This is Teal and the account that Truss produces. Mintz does the member that pass software science and technology 15 years. He works at the first test and verify is being done 6 years ago when wrote Teal. "Every time I go to a new company I should realize Teal afresh, " Mintz says. Whether can make public Teal finally when his inquiry when, it is OK that his present boss says. Truss is founded last year Mintz and Ekendahl are in when working to fly to company of semiconductor of the Er that think of card. "You had had a lot of in-house materials that handling, why to take it? " Mintz reviewing path. The methodology of advanced test and verify of the manual of methodology of test and verify Truss and Synopsys-ARM company and Mentor Graphics company undertook Mintz compare, "Different point depends on it is open and free, and those who use is C++ language. " " apparent to me, " Ekendahl says, "Object-oriented test and verify is making industry method of optimal practice test and verify. " he discloses, new book content includes from arrive basically science and technology of advanced object-oriented process designing, its rudder is mixed to SystemVerilog, Vera also is direct and applicable for these Specman languages. Ekendahl has arrived alertly, at present already a few companies are operating Teal and Truss. These software programs and C++ together, causing more attention. New to this book undertook the presiding apparitor Stanley Hyduke of company of Aldec of emulation environment provider evaluate in a card in Www.trusster.com. "This manual is right object-oriented process designing and how to apply its at strong put oneself in another's position to emulate the view that offerred clarity, " Hyduke is written, "I realise test and verify of strong to leaving generation put oneself in another's position clearly for, c++ , Teal and Truss can comprise a powerful platform. " the C++ transition to Verilog Mintz Teal described as " washerbed down the livestock " , it passes interface of Verilog programming language (PLI) codes C++ and join of Verilog emulation environment rises. "It promises you to write a program everyday with C++ , but it is OK with strong put oneself in another's position interaction, " Mintz says, "It conceals Verilog PLI in those targets that only human ability becomes. " want you not to try to realize a high frequency clock in C++ only, so PLI is very efficient, mintz expresses. He still says: "Need to put the program into Verilog only. There is timer of a watchdog in Verilog, but all logic are in C++ . " Teal still is offerred can transplant a bag of Posix line Cheng, can provide multi-line Cheng support thereby. "Because strong put oneself in another's position is of multi-line Cheng, so system of test and verify also needs multi-line Cheng. " Mintz expresses, "It you want to run Cheng of how many line is OK that you want to run Cheng of how many line, I had moved 4, 000 or 5, 000. " the random number generator that the other character of Teal includes to stabilize, agile log records a tool (Logging Facility) and use at system of test and verify the space of dictionary type name that parameter passes between each part. Memory name space and look up function are undertake " secret " memory is read write provided handy means. On one page 12 below one page

验证科技员Mike Mintz坚信：IC验证需要操作面向对象的编程科技。是以，他建立了两个开放源代码的软件挨次，以帮助科技员们操作C++进行硬体验证工作。此外，他在工作之余，还与人合作撰写了一本以此为主题的书。

Mintz在一家他不肯透露名字的大型系统设计公司工作，他的合作者Robert Ekendahl是Sun Microsystems公司的首席验证科技员。他们经由过程本身建立的www.trusster.com网站，对外供给两个开放源代码挨次。其中一个挨次叫Teal，是一个C++类库，它将C++改编为Verilog，而且供给线程撑持。另一个挨次叫Truss，是在Teal根本长进行C++验证的应用挨次框架。

Mintz和Ekendahl还出书了一本名为《用C++进行硬体验证：专业人员手册》的书。在手册的附带光盘中间接附有Teal和Truss这两个挨次。

“据我所知，至今还没有效C++进行验证的无关书籍，同时又有良多人在操作C++进行验证。” Mintz说，“我认为把我20年软件工作的经验写入书中是件功德。”

Mintz认为，C++是今朝可用于验证的最佳面向对象的说话。“不要让我从SystemC起头，”他忠告说，“它是一种很好的建模说话，但它对于验证来说毫无价值。它供给给你的是模板——C++通用术语，可是在进行验证的过程中几乎用不到。”

人们等候着用C++做验证工作，然而，这需要响应的软件才能实现。这就是Teal和Truss发生的起因。

Mintz做过15年软件科技员。他于6年前做第一份验证工作时写了Teal。“每当我去一家新的公司我都要从头实现Teal，”Mintz说。最终当他询问是否能暗地Teal时，他此刻的老板说能够。

Truss建立于客岁Mintz和Ekendahl都在为飞思卡尔半导体公司工作的时辰。“你已经有良多正在操作的内部资料，为什么不把它拿出来呢？”Mintz回首道。

Mintz把Truss与Synopsys-ARM公司的验证办法学手册和Mentor Graphics公司的前进前辈验证办法学进行了比较，“分歧之处在于它是开放和免费的，而且采用的是C++说话。”

“对我来说很较着，”Ekendahl说，“面向对象的验证正在成为业界最佳实践验证办法。”他透露，新书内容包括从根基到高级的面向对象编程科技，其指点原则对于SystemVerilog、Vera和Specman这些说话来说也是间接合用的。

Ekendahl已经注重到，今朝已有一些公司正在操作Teal和Truss。这些软件挨次和C++一路，正在引起更多的存眷。

仿真情况供给商Aldec公司的首席执行官Stanley Hyduke在www.trusster.com的一个帖子中对这本新书进行了评估。“这本手册对面向对象编程以及若何将其应用于硬体仿真提出了清楚的看法，”Hyduke写道，“我清楚地熟悉到对于下一代硬体验证来说，C++、Teal和Truss能够组成一个强大的平台。”

C++到Verilog的过渡

Mintz将Teal形容为一个“垫圈”，它经由过程Verilog编程说话接口(PLI)将C++编码和Verilog仿真情况连贯起来。“它答应你天天用C++来写挨次，但它能够与硬体彼此感化，”Mintz说，“它将Verilog PLI暗藏在那些只有人类才能做的对象中。”

只要你不试图在C++中实现一个高频时钟，那么PLI长短常高效的，Mintz暗示。他还说：“只要把挨次放入Verilog中。在Verilog中有一个看门狗按时器，可是所有的逻辑都在C++中。”

Teal还供给可移植Posix线程的封包，从而可供给多线程撑持。“因为硬体是多线程的，所以验证系统也需要多线程。” Mintz暗示，“你想运行几多线程都能够，我就运行过4,000或5,000个。”

Teal的其他特征包括不乱的随机数发生器、灵敏的日志记实工具(logging facility)和用于验证系统各部门之间传递参数的辞书式名字空间。存储名字空间和查寻性能为进行“奥秘”存储器读写供给了精练的办法。
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发布日期：2009-8-4　【返回】