Due to this,

When a model is moved from module level verification to system level verification, or

When multiple RTL modules are integrated

there may end up creating issues.

How to define  a macro which is valid within that scope it is defined ?

SV has “let” keyword to do it.

“Let”  is similar to `define, but “let” scope is limited to the scope it is defined.

Examples:

let addr = top.block1.unit1.base + top.block1.unit2.displ;

…

write_value(addr, 0);

let at_least_two(sig, rst = 1′b0) = rst || ($countones(sig) >= 2);

logic [15:0] sig1;

logic [3:0] sig2;

always_comb begin

q1: assert (at_least_two(sig1));

q2: assert (at_least_two(~sig2));

end

Download it  from   http://www.accellera.org/activities/vip/

I have posted following UVM tutorials on Testbench.in

n        –>    UVM tutorial   http://www.testbench.in/UT_00_INDEX.html

n        –>    UVM Easy Labs  http://www.testbench.in/UL_00_INDEX.html

Hope to see your valuable feedback on these tutorials.

Regards,

Gopi Krishna

the list of best discussion forums on SystemVerilog.

1) Verification guild: This forum is maintained by Janick Bergeron. You can find well know verification experts. Almost all the verification book authors can be found on this forum. All your queries will be answered with in a day. Not only SV queries, but all verification queries will be answered.

2) www.systemverilog.in : A site maintained by Kacper Technologies Pvt. Ltd, a development services group based in bangalore, India. This site has SV tutorials and SV discussion forum. The forum is very active and site is growing well.

3) www.svug.org , A site started by Industry experts, to help SV users. They also conduct group meetings. This forum was not successful  as expected. They got 186 posts from past 2 years.

4) Synopsys and Cadence Sv forums: These forums are active but the traffic is less compared to verification guild. Most people prefer to use support channel for help than these forums.

5) VMM forum @ www.vmmcentral.com : VMM 1.0 is easy to understand and books/tutorials helped users a lot. For VMM 1.1 and 1.2, VMM blogs also helped users to understand easily. Lot of Synopsys customers use support channel as they got used to it. 185 posts are seen in past 2 years and most queries are answered by synopsys experts.

6) OVM forum @ www.ovmworld.org : OVM complexity resulted in 1400+ post in 2 years. All your ovm queries will be answered. Exerts from Cadence and mentor are there on this forum to help you.

And the award goes to  ……    Verification Guild.

Check it @ http://www.testbench.in/OT_05_OVM_FACTORY.html

– Gopi Krishna

– Gopi Krishna

Right now I explained about topology,reporting and transaction.

Next , I will publish on Factories – both in VMM and OVM too.

Send me your comments and feedback on these topics.

– Gopi Krishna

- Gopi Krishna

I was inspired by   Avidan Efody  (www.specman-verification.com) and  Deepak Kumar Tala (www.asic-world.com) and started www.testbench.in website .  Specially  this topic link by Avidane influenced me a lot.  I started reading  www.asic-world.com  when I was in college. When I started studying Specman, I found  www.specman-verification.com.  I would like to take this opportunity to thank Avidan and Deepak for such a wonder full websites. 

– Gopi Krishna

I started developing a language.  I call it  “gveb”.  All the content in this site are maintained in simple text files. There wont be any format.   There are about some 20 key words in “gveb”. The parser is developed using perl and gvim. Today “gveb” does everything.  All these 400+ page tutorials are maintained in just 8 text files.  Updates are done only in text files. Format, Layout, pages, links, forms , embedding images and then finally checking weather all the links and images are proper ……everything is done by “gveb”.

– GOPI KRISHNA