c64vic.h

/*
 * This file is part of libsidplayfp, a SID player engine.
 *
 * Copyright 2011-2018 Leandro Nini <drfiemost@users.sourceforge.net>
 * Copyright 2007-2010 Antti Lankila
 * Copyright 2001 Simon White
 *
 * This program is free software; 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 2 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
 
#ifndef C64VIC_H
#define C64VIC_H
 
// The VIC emulation is very generic and here we need to effectively
// wire it into the computer (like adding a chip to a PCB).
 
#include "Banks/Bank.h"
#include "c64/c64env.h"
#include "sidendian.h"
#include "VIC_II/mos656x.h"
 
#ifdef DEBUG
#  include <iostream>
#endif
 
class c64vic: public MOS656X, public Bank
{
private:
    c64env &m_env;
 
protected:
    void interrupt(bool state)
    {
        m_env.interruptIRQ (state);
    }
 
    void setBA(bool state)
    {
        m_env.setBA (state);
    }
 
public:
    c64vic(c64env *env) :
        MOS656X(&(env->context ())),
        m_env(*env) {}
 
    void poke(uint_least16_t address, uint8_t value)
    {
#ifdef DEBUG
        //if (address == 0xD01A)
        //{
        //    std::cout << std::hex << (int)address << ": " << (int)value << std::endl;
        //}
        if (address == 0xD020)
        {
            //std::cout << (int)(value && 0x0f) << std::endl;
            const char* msg = 0;
            if (value == 5 || value == 13) msg = "OK";      // Green
            else if (value == 2 || value == 10) msg = "KO"; // Red
            if (msg)
            {
                std::cout << std::endl << msg << std::endl;
            }
        }
#endif
        write(endian_16lo8(address), value);
    }
 
    uint8_t peek(uint_least16_t address)
    {
        return read(endian_16lo8(address));
    }
};
 
#endif // C64VIC_H