Greetings,
First of all sorry for asking all these questions but i'm running
into problems while trying to edit the project accordingly, and can't go
on without help after trying to solve it myself.

I would like to ask how can i read the received data one pci behavioral
devices acquires from the other behavioral device using a read command to
read the other device's memory. Specifically, the PCIU_MEM_READ task has
the expected data as input but i don't see it returning the read data,
neither does DO_REF. The pci_behavioral_device.v module has an output
named "master_received_data" but after reading it it's value is undefined
(X). I also tried using an always @(master2_received_data) with a $display
as it's command, but it never got executed which means that the received
data is always at X.

Thank you in advance
Mihelogiannakis Giorgos