Interface is not updating the value

[m_v]

In my base test code i am accessing the top interface and updating the value of vsp variable of the interface but it is only taking limit value not updating the correct limit - (1/6) value as needed.

What can be the issue?

top_vif.vsp =  limit - (1/6);

Thanks.

[dave_59]

What are the data types of the variables? Can you give us an example of the values you’re expecting?

[m_v]

Hi dave,

vsp is real variable and limit is int variable.

[giopri]

It’s a truncation issue. Just replace it with

top_vif.vsp =  type(top_vif.vsp)'(limit - (1.0/6.0));

[chr_sue]

Because limit is an integer you have to cast this to real, like this:

@m_v

top_vif.vsp = real'(limit) - (1/6);