Subversion Repositories wbddr3

////////////////////////////////////////////////////////////////////////////////
//
// Filename: 	pddrsim.h
//
// Project:	A wishbone controlled DDR3 SDRAM memory controller.
//
// Purpose:	To expand a DDR3 SDRAM controllers influence across multiple
//		clocks.  Hence, if the DDR3 SDRAM controller runs at half
//	the clock rate of the DDR3-SDRAM, this will expand it to the full
//	clock rate.
//
// Creator:	Dan Gisselquist, Ph.D.
//		Gisselquist Technology, LLC
//
////////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2016, Gisselquist Technology, LLC
//
// This program is free software (firmware): you can redistribute it and/or
// modify it under the terms of  the GNU 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 MERCHANTIBILITY 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 program.  (It's in the $(ROOT)/doc directory, run make with no
// target there if the PDF file isn't present.)  If not, see
// <http://www.gnu.org/licenses/> for a copy.
//
// License:	GPL, v3, as defined and found on www.gnu.org,
//		http://www.gnu.org/licenses/gpl.html
//
//
////////////////////////////////////////////////////////////////////////////////
//
//
#ifndef	PDDRSIM_H
#define	PDDRSIM_H
 
#include "ddrsdramsim.h"
 
class	PDDRSIM	: protected DDRSDRAMSIM {
public:
	PDDRSIM(int lglen) : DDRSDRAMSIM(lglen) {};
	unsigned long operator()(int, int, int,
			unsigned, unsigned, unsigned long);
	unsigned long operator[](unsigned addr) {
		unsigned hdata, ldata;
		unsigned long odata;
		hdata = mem(addr<<1);
		ldata = mem((addr<<1)+1);
 
		odata = (((unsigned long)hdata)<<32)|((unsigned long)ldata);
		return odata; };
	void set(unsigned addr, unsigned long data) {
		unsigned hdata, ldata;
		hdata = (unsigned long)(data>>32);
		ldata = (unsigned long)(data);
 
		mem((addr<<1)  ) = hdata;
		mem((addr<<1)+1) = ldata;
	};
	unsigned bank_state(int bankid) {
		return (m_bank[bankid].m_state & 0x0ffff); };
};
 
#endif