dingusppc/devices/hmc.h

/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-20 divingkatae and maximum
                      (theweirdo)     spatium

(Contact divingkatae#1017 or powermax#2286 on Discord for more info)

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 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/

/** Highspeed Memory Controller emulation.

    Author: Max Poliakovski

    Highspeed Memory Controller (HMC) is a custom memory
    and L2 cache controller designed especially for the
    first generation of the PowerMacintosh computer.
*/

#ifndef HMC_H
#define HMC_H

#include "hwcomponent.h"
#include "memctrlbase.h"
#include "mmiodevice.h"
#include <cinttypes>

class HMC : public MemCtrlBase, public MMIODevice {
public:
    HMC();
    ~HMC() = default;

    bool supports_type(HWCompType type);

    /* MMIODevice methods */
    uint32_t read(uint32_t reg_start, uint32_t offset, int size);
    void write(uint32_t reg_start, uint32_t offset, uint32_t value, int size);

private:
    int      bit_pos;
    uint64_t config_reg;
};

#endif // HMC_H