My issues with uvm_reg's predict method
A couple of weeks ago, I created a status register callback class. The purpose of it was to create a built-in scoreboard allowing me to predict the value of a status register based on the known status signal's input. I'll maybe post the code in a sometime in the future. I've used this code to pass UVM's bit-bash test, as it allows for the prediction of status registers with a "unknown" value. This week, I tried using this callback class in my home brew sequence. This was the first-time I called uvm_reg 's predict method directly from within my sequence. I discovered during this experiment a bug and a bad API call. The bug is the fact that by default the field's callback functions won't be called, as when predicting with kind set to UVM_PREDICT_DIRECT , UVM does not call the post_predict callbacks. So be careful to set kind to UVM_PREDICT_READ or UVM_PREDICT_WRITE . My issue with the API call is the fact that a value must