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// license:BSD-3-Clause
// copyright-holders:Fabio Priuli
#ifndef MAME_BUS_SATURN_SAT_SLOT_H
#define MAME_BUS_SATURN_SAT_SLOT_H
#include "softlist_dev.h"
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// ======================> device_sat_cart_interface
class device_sat_cart_interface : public device_slot_card_interface
{
public:
virtual ~device_sat_cart_interface();
// reading from ROM
virtual DECLARE_READ32_MEMBER(read_rom) { return 0xffffffff; }
// reading and writing to Extended DRAM chips
virtual DECLARE_READ32_MEMBER(read_ext_dram0) { return 0xffffffff; }
virtual DECLARE_WRITE32_MEMBER(write_ext_dram0) { }
virtual DECLARE_READ32_MEMBER(read_ext_dram1) { return 0xffffffff; }
virtual DECLARE_WRITE32_MEMBER(write_ext_dram1) { }
// reading and writing to Extended BRAM chip
virtual DECLARE_READ32_MEMBER(read_ext_bram) { return 0xffffffff; }
virtual DECLARE_WRITE32_MEMBER(write_ext_bram) { }
int get_cart_type() const { return m_cart_type; }
void rom_alloc(uint32_t size, const char *tag);
void bram_alloc(uint32_t size);
void dram0_alloc(uint32_t size);
void dram1_alloc(uint32_t size);
uint32_t* get_rom_base() { return m_rom; }
uint32_t* get_ext_dram0_base() { return &m_ext_dram0[0]; }
uint32_t* get_ext_dram1_base() { return &m_ext_dram1[0]; }
uint8_t* get_ext_bram_base() { return &m_ext_bram[0]; }
uint32_t get_rom_size() { return m_rom_size; }
uint32_t get_ext_dram0_size() { return m_ext_dram0.size()*sizeof(uint32_t); }
uint32_t get_ext_dram1_size() { return m_ext_dram1.size()*sizeof(uint32_t); }
uint32_t get_ext_bram_size() { return m_ext_bram.size(); }
protected:
// construction/destruction
device_sat_cart_interface(const machine_config &mconfig, device_t &device, int cart_type);
const int m_cart_type;
// internal state
uint32_t *m_rom;
uint32_t m_rom_size;
std::vector<uint32_t> m_ext_dram0;
std::vector<uint32_t> m_ext_dram1;
std::vector<uint8_t> m_ext_bram;
};
// ======================> sat_cart_slot_device
class sat_cart_slot_device : public device_t,
public device_image_interface,
public device_slot_interface
{
public:
// construction/destruction
template <typename T>
sat_cart_slot_device(machine_config const &mconfig, char const *tag, device_t *owner, T &&opts, char const *dflt)
: sat_cart_slot_device(mconfig, tag, owner, 0)
{
option_reset();
opts(*this);
set_default_option(dflt);
set_fixed(false);
}
sat_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
virtual ~sat_cart_slot_device();
// 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_cart_type();
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 "sat_cart"; }
virtual const char *file_extensions() const override { return "bin"; }
// slot interface overrides
virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override;
// reading and writing
virtual DECLARE_READ32_MEMBER(read_rom);
virtual DECLARE_READ32_MEMBER(read_ext_dram0);
virtual DECLARE_WRITE32_MEMBER(write_ext_dram0);
virtual DECLARE_READ32_MEMBER(read_ext_dram1);
virtual DECLARE_WRITE32_MEMBER(write_ext_dram1);
virtual DECLARE_READ32_MEMBER(read_ext_bram);
virtual DECLARE_WRITE32_MEMBER(write_ext_bram);
protected:
// device-level overrides
virtual void device_start() override;
private:
device_sat_cart_interface* m_cart;
};
// device type definition
DECLARE_DEVICE_TYPE(SATURN_CART_SLOT, sat_cart_slot_device)
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define SATSLOT_ROM_REGION_TAG ":cart:rom"
#endif // MAME_BUS_SATURN_SAT_SLOT_H
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