Subversion Repositories openrisc_2011-10-31

// ----------------------------------------------------------------------------

// Access functions for the ORPSoC Verilator model: implementation

// Copyright (C) 2008  Embecosm Limited <info@embecosm.com>

// Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>

// This file is part of the cycle accurate model of the OpenRISC 1000 based

// system-on-chip, ORPSoC, built using Verilator.

// This program is free software: you can redistribute it and/or modify it

// under the terms of the GNU Lesser General Public License as published by

// the Free Software Foundation, either version 3 of the License, or (at your

// option) any later version.

// This 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 Lesser General Public

// License for more details.

// You should have received a copy of the GNU Lesser General Public License

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

// ----------------------------------------------------------------------------

// $Id: OrpsocAccess.cpp 303 2009-02-16 11:20:17Z jeremy $

#include "OrpsocAccess.h"

#include "Vorpsoc_top.h"

#include "Vorpsoc_top_orpsoc_top.h"

#include "Vorpsoc_top_or1k_top.h"

#include "Vorpsoc_top_or1200_top.h"

#include "Vorpsoc_top_or1200_cpu.h"

#include "Vorpsoc_top_or1200_ctrl.h"

#include "Vorpsoc_top_or1200_rf.h"

#include "Vorpsoc_top_or1200_dpram.h"

//! Constructor for the ORPSoC access class

//! Initializes the pointers to the various module instances of interest

//! within the Verilator model.

//! @param[in] orpsoc  The SystemC Verilated ORPSoC instance

OrpsocAccess::OrpsocAccess (Vorpsoc_top *orpsoc_top)

{

  or1200_ctrl = orpsoc_top->v->i_or1k->i_or1200_top->or1200_cpu->or1200_ctrl;

  rf_a        = orpsoc_top->v->i_or1k->i_or1200_top->or1200_cpu->or1200_rf->rf_a;

}       // OrpsocAccess ()

//! Access for the wb_freeze signal

//! @return  The value of the or1200_ctrl.wb_freeze signal

bool

OrpsocAccess::getWbFreeze ()

{

  return  or1200_ctrl->wb_freeze;

}       // getWbFreeze ()

//! Access for the wb_insn register

//! @return  The value of the or1200_ctrl.wb_insn register

uint32_t

OrpsocAccess::getWbInsn ()

{

  return  (or1200_ctrl->get_wb_insn) ();

}       // getWbInsn ()

//! Access for the OR1200 GPRs

//! These are extracted from memory using the Verilog function

//! @param[in] regNum  The GPR whose value is wanted

//! @return            The value of the GPR

uint32_t

OrpsocAccess::getGpr (uint32_t  regNum)

{

  return  (rf_a->get_gpr) (regNum);

}       // getGpr ()