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// license:BSD-3-Clause
// copyright-holders:Fabio Priuli
#ifndef MAME_BUS_VCS_VCS_SLOT_H
#define MAME_BUS_VCS_VCS_SLOT_H
#pragma once
#include "softlist_dev.h"
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
#define A26SLOT_ROM_REGION_TAG ":cart:rom"
/* 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_interface
{
public:
// construction/destruction
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) { }
virtual void setup_addon_ptr(uint8_t *ptr) { }
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(); }
protected:
device_vcs_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;
};
// ======================> vcs_cart_slot_device
class vcs_cart_slot_device : public device_t,
public device_image_interface,
public device_single_card_slot_interface<device_vcs_cart_interface>
{
public:
// construction/destruction
template <typename T>
vcs_cart_slot_device(machine_config const &mconfig, char const *tag, device_t *owner, T &&opts, char const *dflt)
: vcs_cart_slot_device(mconfig, tag, owner, (uint32_t)0)
{
option_reset();
opts(*this);
set_default_option(dflt);
set_fixed(false);
}
vcs_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
virtual ~vcs_cart_slot_device();
// image-level overrides
virtual image_init_result call_load() override;
virtual void call_unload() override;
virtual iodevice_t image_type() const noexcept override { return IO_CARTSLOT; }
virtual bool is_readable() const noexcept override { return true; }
virtual bool is_writeable() const noexcept override { return false; }
virtual bool is_creatable() const noexcept override { return false; }
virtual bool must_be_loaded() const noexcept override { return true; }
virtual bool is_reset_on_load() const noexcept override { return true; }
virtual const char *image_interface() const noexcept override { return "a2600_cart"; }
virtual const char *file_extensions() const noexcept override { return "bin,a26"; }
// slot interface overrides
virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override;
int get_cart_type() { return m_type; };
static int identify_cart_type(const uint8_t *ROM, uint32_t len);
// 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);
protected:
// device-level overrides
virtual void device_start() override;
// device_image_interface implementation
virtual const software_list_loader &get_software_list_loader() const override { return rom_software_list_loader::instance(); }
private:
device_vcs_cart_interface* m_cart;
int m_type;
static bool detect_snowhite(const uint8_t *cart, uint32_t len);
static bool detect_modeDC(const uint8_t *cart, uint32_t len);
static bool detect_modeF6(const uint8_t *cart, uint32_t len);
static bool detect_mode3E(const uint8_t *cart, uint32_t len);
static bool detect_modeSS(const uint8_t *cart, uint32_t len);
static bool detect_modeFE(const uint8_t *cart, uint32_t len);
static bool detect_modeE0(const uint8_t *cart, uint32_t len);
static bool detect_modeCV(const uint8_t *cart, uint32_t len);
static bool detect_modeFV(const uint8_t *cart, uint32_t len);
static bool detect_modeJVP(const uint8_t *cart, uint32_t len);
static bool detect_modeE7(const uint8_t *cart, uint32_t len);
static bool detect_modeUA(const uint8_t *cart, uint32_t len);
static bool detect_8K_mode3F(const uint8_t *cart, uint32_t len);
static bool detect_32K_mode3F(const uint8_t *cart, uint32_t len);
static bool detect_super_chip(const uint8_t *cart, uint32_t len);
};
// device type definition
DECLARE_DEVICE_TYPE(VCS_CART_SLOT, vcs_cart_slot_device)
#endif // MAME_BUS_VCS_VCS_SLOT_H
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