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  • Cross Coverage using iff, binsof and intersect constructs

Cross Coverage using iff, binsof and intersect constructs

SystemVerilog 6745
functional coverages 2 #coverage 18 binsof() 1 Cross coverage with... 1
Shashank Gurijala
Shashank Gurijala
Full Access
92 posts
May 31, 2022 at 1:02 am

Hello!

Please go through the following :

c3: cross c1,c2 {bins ad13   =   binsof(c1.a1) && binsof(c1.a3) iff (c2 intersect {binsof(c2.d5)});}

The error is:Error: (vlog-13069) binsof_intersect_coverage.sv(64): near "intersect": syntax error, unexpected "SystemVerilog keyword 'intersect'".
# ** Error: binsof_intersect_coverage.sv(126): (vlog-13205) Syntax error found in the scope following 'data'. Is there a missing '::'?

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Shashank Gurijala
Shashank Gurijala
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92 posts
May 31, 2022 at 1:03 am

In reply to Shashank Gurijala:

I know iff construct can be used against a coverpoint. I tried using it for an explicit binsof construct. Is it legal?

dave_59
dave_59
Forum Moderator
11281 posts
May 31, 2022 at 1:09 pm

In reply to Shashank Gurijala:

The iff (expression) is a boolean expression that gets evaluated when a sampling a covergroup. It is basically an enable for the bin counters; it has nothing to do with creation of bins.

— Dave Rich, Verification Architect, Siemens EDA

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