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// license:BSD-3-Clause
// copyright-holders:Fabio Priuli
#ifndef __VCS_SLOT_H
#define __VCS_SLOT_H
#include "softlist_dev.h"
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
/* PCB */
enum
{
A26_2K = 0,
A26_4K,
A26_F4,
A26_F6,
A26_F8,
A26_F8SW,
A26_FA,
A26_FE,
A26_3E, // to test
A26_3F,
A26_E0,
A26_E7,
A26_UA,
A26_DC,
A26_CV,
A26_FV,
A26_JVP, // to test
A26_32IN1,
A26_8IN1,
A26_4IN1,
A26_DPC,
A26_SS,
A26_CM,
A26_X07,
A26_HARMONY,
};
// ======================> device_vcs_cart_interface
class device_vcs_cart_interface : public device_slot_card_interface
{
public:
// construction/destruction
device_vcs_cart_interface(const machine_config &mconfig, device_t &device);
virtual ~device_vcs_cart_interface();
// reading from ROM
virtual DECLARE_READ8_MEMBER(read_rom) { return 0xff; }
// writing to RAM chips (sometimes it is in a different range than write_bank!)
virtual DECLARE_WRITE8_MEMBER(write_ram) {}
// read/write to bankswitch address
virtual DECLARE_READ8_MEMBER(read_bank) { return 0xff; }
virtual DECLARE_WRITE8_MEMBER(write_bank) {}
// direct update handler
virtual DECLARE_DIRECT_UPDATE_MEMBER(cart_opbase) { return address; }
virtual void setup_addon_ptr(UINT8 *ptr) {}
void rom_alloc(UINT32 size, const char *tag);
void ram_alloc(UINT32 size);
UINT8* get_rom_base() { return m_rom; }
UINT8* get_ram_base() { return &m_ram[0]; }
UINT32 get_rom_size() { return m_rom_size; }
UINT32 get_ram_size() { return m_ram.size(); }
protected:
// internal state
UINT8 *m_rom;
UINT32 m_rom_size;
std::vector<UINT8> m_ram;
};
// ======================> vcs_cart_slot_device
class vcs_cart_slot_device : public device_t,
public device_image_interface,
public device_slot_interface
{
public:
// construction/destruction
vcs_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
virtual ~vcs_cart_slot_device();
// device-level overrides
virtual void device_start() override;
virtual void device_config_complete() 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_cart_type() { return m_type; };
int identify_cart_type(UINT8 *ROM, UINT32 len);
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 1; }
virtual bool is_reset_on_load() const override { return 1; }
virtual const char *image_interface() const override { return "a2600_cart"; }
virtual const char *file_extensions() const override { return "bin,a26"; }
// slot interface overrides
virtual std::string get_default_card_software() override;
// reading and writing
virtual DECLARE_READ8_MEMBER(read_rom);
virtual DECLARE_READ8_MEMBER(read_bank);
virtual DECLARE_WRITE8_MEMBER(write_bank);
virtual DECLARE_WRITE8_MEMBER(write_ram);
virtual DECLARE_DIRECT_UPDATE_MEMBER(cart_opbase);
private:
device_vcs_cart_interface* m_cart;
int m_type;
int detect_snowhite(UINT8 *cart, UINT32 len);
int detect_modeDC(UINT8 *cart, UINT32 len);
int detect_modeF6(UINT8 *cart, UINT32 len);
int detect_mode3E(UINT8 *cart, UINT32 len);
int detect_modeSS(UINT8 *cart, UINT32 len);
int detect_modeFE(UINT8 *cart, UINT32 len);
int detect_modeE0(UINT8 *cart, UINT32 len);
int detect_modeCV(UINT8 *cart, UINT32 len);
int detect_modeFV(UINT8 *cart, UINT32 len);
int detect_modeJVP(UINT8 *cart, UINT32 len);
int detect_modeE7(UINT8 *cart, UINT32 len);
int detect_modeUA(UINT8 *cart, UINT32 len);
int detect_8K_mode3F(UINT8 *cart, UINT32 len);
int detect_32K_mode3F(UINT8 *cart, UINT32 len);
int detect_super_chip(UINT8 *cart, UINT32 len);
};
// device type definition
extern const device_type VCS_CART_SLOT;
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define A26SLOT_ROM_REGION_TAG ":cart:rom"
#define MCFG_VCS_CARTRIDGE_ADD(_tag,_slot_intf,_def_slot) \
MCFG_DEVICE_ADD(_tag, VCS_CART_SLOT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
#endif
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