#pragma once

#include <stdint.h>
#include <stdio.h>

#define MEMTAG_NONE     0x00
#define MEMTAG_DATA     0x01
#define MEMTAG_INST     0x02
#define MEMTAG_CODE     0x04
#define MEMTAG_IGNORE   0x08
#define MEMTAG_TDATA    0x10
#define MEMTAG_TINST    0x20
#define MEMTAG_TREPEAT  0x40
#define MEMTAG_MODIFIED 0x80

#define MEMTAG_KNOWN    0x07
#define MEMTAG_TOUCHED  0x70

class z80mem
{
    public:
        static z80mem *get() { return singleton; };

        virtual uint8_t readMem(uint16_t address) = 0;
        virtual void writeMem(uint16_t address, uint8_t value) = 0;

        virtual void loadMem(uint16_t address, uint16_t len, uint8_t *buffer) = 0;

        virtual uint8_t getTag(uint16_t address) = 0;
        virtual void setTag(uint16_t address, uint8_t value) = 0;
        virtual void reset() = 0;

        virtual void saveState(FILE* f) = 0;
        virtual void loadState(FILE* f) = 0;

        virtual uint32_t getSize() = 0;

        virtual uint8_t *rawPtr(uint32_t address) = 0;
    
    protected:

        static z80mem *singleton;
};