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-rwxr-xr-xsrc/devices/bus/vcs/vcs_slot.h160
1 files changed, 160 insertions, 0 deletions
diff --git a/src/devices/bus/vcs/vcs_slot.h b/src/devices/bus/vcs/vcs_slot.h
new file mode 100755
index 00000000000..9b087988d80
--- /dev/null
+++ b/src/devices/bus/vcs/vcs_slot.h
@@ -0,0 +1,160 @@
+// license:BSD-3-Clause
+// copyright-holders:Fabio Priuli
+#ifndef __VCS_SLOT_H
+#define __VCS_SLOT_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
+};
+
+
+// ======================> 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;
+ dynamic_buffer 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();
+ virtual void device_config_complete();
+
+ // image-level overrides
+ virtual bool call_load();
+ virtual void call_unload();
+ virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry);
+
+ int get_cart_type() { return m_type; };
+ int identify_cart_type(UINT8 *ROM, UINT32 len);
+
+ virtual iodevice_t image_type() const { return IO_CARTSLOT; }
+ virtual bool is_readable() const { return 1; }
+ virtual bool is_writeable() const { return 0; }
+ virtual bool is_creatable() const { return 0; }
+ virtual bool must_be_loaded() const { return 1; }
+ virtual bool is_reset_on_load() const { return 1; }
+ virtual const option_guide *create_option_guide() const { return NULL; }
+ virtual const char *image_interface() const { return "a2600_cart"; }
+ virtual const char *file_extensions() const { return "bin,a26"; }
+
+ // slot interface overrides
+ virtual void get_default_card_software(std::string &result);
+
+ // 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