Re: [myhdl-list] OSS CVC vpi module

[Paul.Y.Zhang <yzh...@gm...>]

Hi, Chris,

Excuse me, I am not very familar with the PLI/VPI technology. I do not 
see any tf_ functions in "myhdl_vpi.c" codes. Waiting for your progress.

- Paul

在 2014/12/16 22:58, Christopher Felton 写道:
> On 12/13/2014 7:43 PM, Paul.Y.Zhang wrote:
>> neccHi,
>>
>> I post the cver vpi module (cosimulation/cver/myhdl_vpi.c) to Steve
>> Meyer (the author of OSS CVC?), to get help of the memory leak issue.
>> Got the below replay:
>>
>>      I assume calltf means the PLI uses the old tf_ interface.  You need to
>> translate (or find) a version of your myhdl PLI coded in vpi_.  tf_ is obsolete
>> old 1990s Verilog XL PLI that is deprecated (removed from) IEEE 1364 2005.
>> The reason tf_ is removed is that it just grew in Cadence XL so nobody could
>> duplicate behavior.
> According to the 1364-2005 LRM [1] which contains the
> PLI/VPI definition, indicates the tf_ functions are
> deprecated (section 24).
>
> Wow - I am a little slow to follow this thread, I didn't
> realize that the Tachyon re-opened/released their
> simulator, originally they open-sourced GPLCVER [2] and
> now they open-sourced CVC [3].  This is pretty amazing
> because CVC is fast and a great companion with MyHDL (IMO).
>
> I will try and experiment replacing the tf_ functions
> with the OSS CVC and see if the leak can be resolved.
>
> Regards,
> Chris
>
>
> [1] http://ieeexplore.ieee.org/servlet/opac?punumber=10779
>       (probably can alos be found by googling, note "Verilog"
>        has been merged with SV in the 1800 standard ...)
>
> [2] http://sourceforge.net/projects/gplcver/
>
> [3] http://www.tachyon-da.com/
>
>
> ------------------------------------------------------------------------------
> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server
> from Actuate! Instantly Supercharge Your Business Reports and Dashboards
> with Interactivity, Sharing, Native Excel Exports, App Integration & more
> Get technology previously reserved for billion-dollar corporations, FREE
> http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk
> _______________________________________________
> myhdl-list mailing list
> myh...@li...
> https://lists.sourceforge.net/lists/listinfo/myhdl-list

-- 
Paul