sam-t2/sam/cpus/vonk/ss/dev/ram/src/SS_Memory.py

# ========== Copyright Header Begin ==========================================
#
# OpenSPARC T2 Processor File: SS_Memory.py
# Copyright (c) 2006 Sun Microsystems, Inc.  All Rights Reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES.
#
# The above named program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public
# License version 2 as published by the Free Software Foundation.
#
# The above named program is distributed in the hope that it will be
# useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public
# License along with this work; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ========== Copyright Header End ============================================

import os
import Pfe_Memory

class Memory(Pfe_Memory.Memory):
  def __init__(self,memory):
    Pfe_Memory.Memory.__init__(self)
    self.__memory__ = memory

  def load(self,filename,addr=None):
    os.stat(filename)                   # Test for excisting filename
    if addr == None:
      self.__memory__.load(filename)
    else:
      self.__memory__.load(filename,addr)

  def save(self,filename,addr,size):
    self.__memory__.save(filename,addr,size)


  def __ldb__(self,addr):  return self.__memory__.peek8u (addr)
  def __ldh__(self,addr):  return self.__memory__.peek16u(addr &~ 1)
  def __ldw__(self,addr):  return self.__memory__.peek32u(addr &~ 3)
  def __ldx__(self,addr):  return self.__memory__.peek64 (addr &~ 7)

  def __stb__(self,addr,data):  self.__memory__.poke8 (addr,data)
  def __sth__(self,addr,data):  self.__memory__.poke16(addr &~ 1,data)
  def __stw__(self,addr,data):  self.__memory__.poke32(addr &~ 3,long(data))
  def __stx__(self,addr,data):  self.__memory__.poke64(addr &~ 7,data)