exsid-emu.h

/***************************************************************************
                   exsid-emu.h - exSID support interface.
                             -------------------
   Based on hardsid-emu.h (C) 2000-2002 Simon White, (C) 2001-2002 Jarno Paananen
 
    copyright            : (C) 2015 Thibaut VARENE
 ***************************************************************************/
/***************************************************************************
 *                                                                         *
 *   This 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.                            *
 *                                                                         *
 ***************************************************************************/
 
#ifndef EXSID_EMU_H
#define EXSID_EMU_H
 
#include "sidemu.h"
#include "Event.h"
#include "EventScheduler.h"
#include "sidplayfp/siddefs.h"
 
#include "sidcxx11.h"
 
#ifdef HAVE_CONFIG_H
#  include "config.h"
#endif
 
namespace libsidplayfp
{
 
#define EXSID_VOICES 3
 
// Approx 30ms
#define EXSID_DELAY_CYCLES 50480
 
/***************************************************************************
 * exSID SID Specialisation
 ***************************************************************************/
class exSID final : public sidemu
{
private:
    //friend class HardSIDBuilder;
 
    // exSID specific data
    static unsigned int sid;
 
    bool m_status;
 
    bool readflag;
 
    uint8_t busValue;
 
    bool muted[3];
 
    SidConfig::sid_model_t runmodel;
 
private:
    unsigned int delay();
 
public:
    static const char* getCredits();
 
public:
    exSID(sidbuilder *builder);
    ~exSID();
 
    bool getStatus() const { return m_status; }
 
    uint8_t read(uint_least8_t addr) override;
    void write(uint_least8_t addr, uint8_t data) override;
 
    // c64sid functions
    void reset(uint8_t volume) override;
 
    // Standard SID functions
    void clock() override;
 
    void model(SidConfig::sid_model_t model, bool digiboost) override;
 
    void voice(unsigned int num, bool mute) override;
 
    void filter(bool) {}
 
    void sampling(float systemclock, float freq,
        SidConfig::sampling_method_t method, bool) override;
 
    // exSID specific
    void flush();
 
    // Must lock the SID before using the standard functions.
    bool lock(EventScheduler *env) override;
    void unlock() override;
};
 
}
 
#endif // EXSID_EMU_H