uvm_reg_map——寄存器模型（八）

所有的寄存器都需要地址，都需要加入到地址列表中

//------------------------------------------------------------------------------
//
// Class: uvm_reg_map
//
// :Address map abstraction class
//
// This class represents an address map.
// An address map is a collection of registers and memories
// accessible via a specific physical interface.
// Address maps can be composed into higher-level address maps.
//
// Address maps are created using the <uvm_reg_block::create_map()>
// method.
//------------------------------------------------------------------------------

class uvm_reg_map extends uvm_object;

   `uvm_object_utils(uvm_reg_map)

   // info that is valid only if top-level map
   local uvm_reg_addr_t     m_base_addr;
   local int unsigned       m_n_bytes;
   local uvm_endianness_e   m_endian;
   local bit                m_byte_addressing;
   local uvm_object_wrapper m_sequence_wrapper;
   local uvm_reg_adapter    m_adapter;
   local uvm_sequencer_base m_sequencer;
   local bit                m_auto_predict;
   local bit                m_check_on_read;

   local uvm_reg_block      m_parent;

   local int unsigned       m_system_n_bytes;

   local uvm_reg_map        m_parent_map;
   local uvm_reg_addr_t     m_parent_maps[uvm_reg_map];   // value=offset of this map at parent level
   local uvm_reg_addr_t     m_submaps[uvm_reg_map];       // value=offset of submap at this level
   local string             m_submap_rights[uvm_reg_map]; // value=rights of submap at this level

   local uvm_reg_map_info   m_regs_info[uvm_reg];
   local uvm_reg_map_info   m_mems_info[uvm_mem];

   local uvm_reg            m_regs_by_offset[uvm_reg_addr_t];
                            // Use only in addition to above if a RO and a WO
                            // register share the same address.
   local uvm_reg            m_regs_by_offset_wo[uvm_reg_addr_t];
   local uvm_mem            m_mems_by_offset[uvm_reg_map_addr_range];

   local uvm_reg_transaction_order_policy policy;

   extern /*local*/ function void Xinit_address_mapX();

   static local uvm_reg_map   m_backdoor;

   // Function: backdoor
   // Return the backdoor pseudo-map singleton
   //
   // This pseudo-map is used to specify or configure the backdoor
   // instead of a real address map.
   //
   static function uvm_reg_map backdoor();
      if (m_backdoor == null)
        m_backdoor = new("Backdoor");
      return m_backdoor;
   endfunction