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

// Access functions for the ORPSoC Verilator model: implementation

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

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

// Contributor Julius Baxter <jb@orsoc.se>

// 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_except.h"

#include "Vorpsoc_top_or1200_sprs.h"

#include "Vorpsoc_top_or1200_rf.h"

#include "Vorpsoc_top_or1200_dpram.h"

//#include "Vorpsoc_top_ram_wb.h"

//#include "Vorpsoc_top_ram_wb_sc_sw.h"

#include "Vorpsoc_top_ram_wb__D20_A18_M800000.h"

#include "Vorpsoc_top_ram_wb_sc_sw__D20_A18_M800000.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;

  or1200_except = orpsoc_top->v->i_or1k->i_or1200_top->or1200_cpu->or1200_except;

  or1200_sprs = orpsoc_top->v->i_or1k->i_or1200_top->or1200_cpu->or1200_sprs;

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

  ram_wb_sc_sw = orpsoc_top->v->ram_wb0->ram0;

}       // OrpsocAccess ()

//! Access for the ex_freeze signal

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

bool

OrpsocAccess::getExFreeze ()

{

  return  or1200_ctrl->ex_freeze;

}       // getExFreeze ()

//! 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 except_flushpipe signal

//! @return  The value of the or1200_except.except_flushpipe signal

bool

OrpsocAccess::getExceptFlushpipe ()

{

  return  or1200_except->except_flushpipe;

}       // getExceptFlushpipe ()

//! Access for the ex_dslot signal

//! @return  The value of the or1200_except.ex_dslot signalfac

bool

OrpsocAccess::getExDslot ()

{

  return  or1200_except->ex_dslot;

}       // getExDslot ()

//! Access for the except_type value

//! @return  The value of the or1200_except.except_type register

uint32_t

OrpsocAccess::getExceptType ()

{

  return  (or1200_except->get_except_type) ();

}       // getExceptType ()

//! Access for the id_pc register

//! @return  The value of the or1200_except.id_pc register

uint32_t

OrpsocAccess::getIdPC ()

{

  return  (or1200_except->get_id_pc) ();

}       // getIdPC ()

//! Access for the ex_pc register

//! @return  The value of the or1200_except.id_ex register

uint32_t

OrpsocAccess::getExPC ()

{

  return  (or1200_except->get_ex_pc) ();

}       // getExPC ()

//! Access for the wb_pc register

//! @return  The value of the or1200_except.wb_pc register

uint32_t

OrpsocAccess::getWbPC ()

{

  return  (or1200_except->get_wb_pc) ();

}       // getWbPC ()

//! Access for the id_insn register

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

uint32_t

OrpsocAccess::getIdInsn ()

{

  return  (or1200_ctrl->get_id_insn) ();

}       // getIdInsn ()

//! Access for the ex_insn register

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

uint32_t

OrpsocAccess::getExInsn ()

{

  return  (or1200_ctrl->get_ex_insn) ();

}       // getExInsn ()

//! 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 the Wishbone SRAM memory

//! @return  The value of the memory word at addr

uint32_t

OrpsocAccess::get_mem (uint32_t addr)

{

  return  (ram_wb_sc_sw->get_mem) (addr);

}       // get_mem ()

//! Write value to the Wishbone SRAM memory

void

OrpsocAccess::set_mem (uint32_t addr, uint32_t data)

{

  (ram_wb_sc_sw->set_mem) (addr, data);

}       // set_mem ()

//! Trigger the $readmemh() system call

void

OrpsocAccess::do_ram_readmemh (void)

{

  (ram_wb_sc_sw->do_readmemh) ();

}       // do_ram_readmemh ()

//! 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 ()

//! Access for the sr register

//! @return  The value of the or1200_sprs.sr register

uint32_t

OrpsocAccess::getSprSr ()

{

  return  (or1200_sprs->get_sr) ();

}       // getSprSr ()

//! Access for the epcr register

//! @return  The value of the or1200_sprs.epcr register

uint32_t

OrpsocAccess::getSprEpcr ()

{

  return  (or1200_sprs->get_epcr) ();

}       // getSprEpcr ()

//! Access for the eear register

//! @return  The value of the or1200_sprs.eear register

uint32_t

OrpsocAccess::getSprEear ()

{

  return  (or1200_sprs->get_eear) ();

}       // getSprEear ()

//! Access for the esr register

//! @return  The value of the or1200_sprs.esr register

uint32_t

OrpsocAccess::getSprEsr ()

{

  return  (or1200_sprs->get_esr) ();

}       // getSprEsr ()