TRIGGER_SETS_PER_STATE
reg_offset += curr_trigger_state * TRIGGER_SETS_PER_STATE * MAX_CONSTRAINTS * BYTES_IN_DWORD;
reg_offset = bus->next_trigger_state * TRIGGER_SETS_PER_STATE * BYTES_IN_DWORD;
reg_offset = (bus->next_trigger_state - 1) * TRIGGER_SETS_PER_STATE * BYTES_IN_DWORD;