Use of two-state variables in RVFI Agent

[Mike Thompson]

Hi @MarioOpenHWGroup, you are getting this issue because git says you are the author of this code.

In uvma_rvfi_tdefs.sv there is a packed struct called st_rvfi that is used to create arguments to a couple of DPI functions to implement Spike Tandem operation.

All of the members of this struct are longint unsigned which are two-state variables. In general, two-state variables are to be avoided as uninitialized data will be mapped to zero which may mask problems.

Can these be implemented as logic[63:0]?

[MarioOpenHWGroup]

I think so, it should be a problem at all 👍