Problems encountered when using CVXIF to extend custom instructions

[LOCKEDGATE]

Is there an existing CVA6 bug for this?

• [x] I have searched the existing bug issues

Bug Description

I used the example given in this tutorial to extend the custom instruction. https://docs.openhwgroup.org/projects/cva6-user-manual/01_cva6_user/CVX_Interface_Coprocessor.html#cv-x-if-interface-specification

When I executed the last step, the program had an error.

Then I checked cvxif_bcd.cv64a6_imafdc_sv39.log.iss, as shown below:

How can I solve this problem? I have been online for a long time, but there is not much information on this problem.

Before above, I had run the smoke test.

Looking forward to your reply.

[haipnh]

I have the same problem: CVA6 didn't process the custom instruction and jumped to <trap_entry>.