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// license:BSD-3-Clause
// copyright-holders:Fabio Priuli
#ifndef MAME_BUS_M5_SLOT_H
#define MAME_BUS_M5_SLOT_H
#pragma once
#include "softlist_dev.h"
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
/* PCB */
enum
{
EM_5 = 1,
MEM64KBI,
MEM64KBF,
MEM64KRX
};
#define M5_STD 0
// ======================> device_m5_cart_interface
class device_m5_cart_interface : public device_slot_card_interface
{
public:
// construction/destruction
virtual ~device_m5_cart_interface();
// reading and writing
virtual DECLARE_READ8_MEMBER(read_rom) { return 0xff; }
virtual DECLARE_READ8_MEMBER(read_ram) { return 0xff; }
virtual DECLARE_WRITE8_MEMBER(write_ram) {}
void rom_alloc(uint32_t size, const char *tag);
void ram_alloc(uint32_t size);
uint8_t* get_rom_base() { return m_rom; }
uint8_t* get_ram_base() { return &m_ram[0]; }
uint32_t get_rom_size() { return m_rom_size; }
uint32_t get_ram_size() { return m_ram.size(); }
void save_ram() { device().save_item(NAME(m_ram)); }
protected:
device_m5_cart_interface(const machine_config &mconfig, device_t &device);
// internal state
uint8_t *m_rom;
uint32_t m_rom_size;
std::vector<uint8_t> m_ram;
};
// ======================> m5_cart_slot_device
class m5_cart_slot_device : public device_t,
public device_image_interface,
public device_slot_interface
{
public:
// construction/destruction
template <typename T>
m5_cart_slot_device(machine_config const &mconfig, char const *tag, device_t *owner, T &&opts, char const *dflt)
: m5_cart_slot_device(mconfig, tag, owner, 0)
{
option_reset();
opts(*this);
set_default_option(dflt);
set_fixed(false);
}
m5_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
virtual ~m5_cart_slot_device();
// device-level overrides
virtual void device_start() override;
// image-level overrides
virtual image_init_result call_load() override;
virtual void call_unload() override {}
virtual const software_list_loader &get_software_list_loader() const override { return rom_software_list_loader::instance(); }
int get_type() { return m_type; }
void save_ram() { if (m_cart && m_cart->get_ram_size()) m_cart->save_ram(); }
virtual iodevice_t image_type() const override { return IO_CARTSLOT; }
virtual bool is_readable() const override { return 1; }
virtual bool is_writeable() const override { return 0; }
virtual bool is_creatable() const override { return 0; }
virtual bool must_be_loaded() const override { return 0; }
virtual bool is_reset_on_load() const override { return 1; }
virtual const char *image_interface() const override { return "m5_cart"; }
virtual const char *file_extensions() const override { return "bin,rom"; }
// slot interface overrides
virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override;
// reading and writing
virtual DECLARE_READ8_MEMBER(read_rom);
virtual DECLARE_READ8_MEMBER(read_ram);
virtual DECLARE_WRITE8_MEMBER(write_ram);
protected:
int m_type;
device_m5_cart_interface* m_cart;
};
// device type definition
DECLARE_DEVICE_TYPE(M5_CART_SLOT, m5_cart_slot_device)
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define M5SLOT_ROM_REGION_TAG ":cart:rom"
#endif // MAME_BUS_M5_SLOT_H
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