Jim Lewis

Hi Ken,
Yes and no. SV does not have this built into it or the UVM library.

OTOH, Accellera created a language that layers on top of other languages (I think VHDL too), called PSS (Portable Test and Stimulus Standard). Of course, it adds another layer of $$$$$ to your simulator budget.

Best Regards,
Jim

Sure, it is easy.   Sequences imply history.   We create history explicitly just like RTL – by using clocked processes / flip-flops.   Once you have history, this is just a simple cross product of selected current values and two previous values.   WRT sampling, in OSVVM, we trigger on transaction completion using an explicit call to…

Hi Torsten,In the IEEE VHDL-2008, there is only numeric_std_unsigned.   There is no “signed” package.   Jim

Hi Reuven,PathTail is intended to extract a component instance label from a PathName.   For the string representation of a variable, signal, constant, or even entity name, you can indeed just use simple_name.  I will update PathTail in the next revision so that it does not assume the name ends in a “:” and will return what you were…[Read more]

I test with QuestaSim 10.5b so if you have the compile order correct, you should be fine.How did you compile it?   Did you use the osvvm.do file?   See:  https://github.com/OSVVM/OSVVM/blob/master/osvvm.doDid you use the directions in the OSVVM_release_notes.pdf?   See:  https://github.com/OSVVM/OSVVM/blob/master/doc/osvvm_release_notes.pdfI note…[Read more]

Hi Eilert,In the 2008 standard it says:An implementation shall choose a representation for all floating-point types except for universal_real that conforms either to IEEE Std 754-1985 or to IEEE Std 854-1987; in either case, a minimum representation size of 64 bits is required for this chosen representation.I think this changed before 2008,…[Read more]

Hi Roger,I just did a code review regarding AtLeast.  Looking at the code, the AtLeast value is the maximum of the one specified by AddBins (the way I usually show to enter it) and the value specified by GenBin (also specified by a first integer value – but then also requires at least 4 parameters be used).   Hence, if you specify both, you may be…[Read more]

That unfortunately is a known bug.   10.4 brought some new cool features, but some how broke for the scoreboard in a way that I could not figure out how to work around.   If you are just working with the primary releases, the following versions also exhibit the issue:  10.4, 10.4a, 10.4b, 10.4c.   10.3 was fine.   10.4d and 10.5 are fine. The…[Read more]

Good catch.   I updated the source document.  Thanks.