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// license:BSD-3-Clause
// copyright-holders:Fabio Priuli
#ifndef MAME_BUS_NES_KARASTUDIO_H
#define MAME_BUS_NES_KARASTUDIO_H
#pragma once
#include "nxrom.h"
#include "softlist_dev.h"
//-----------------------------------------
//
// Karaoke Studio Cartslot implementation
//
//-----------------------------------------
// ======================> kstudio_cart_interface
class kstudio_cart_interface : public device_interface
{
public:
// construction/destruction
virtual ~kstudio_cart_interface();
// reading and writing
virtual uint8_t read(offs_t offset);
uint8_t *get_cart_base() { return m_rom; }
void write_prg_bank(uint8_t bank) { m_bank = bank; }
protected:
kstudio_cart_interface(const machine_config &mconfig, device_t &device);
// internal state
uint8_t *m_rom;
// ROM is accessed via two 16K banks, but only the first one can be switched
uint8_t m_bank;
};
// ======================> nes_kstudio_slot_device
class nes_karaokestudio_device;
class nes_kstudio_slot_device : public device_t,
public device_image_interface,
public device_single_card_slot_interface<kstudio_cart_interface>
{
friend class nes_karaokestudio_device;
public:
// construction/destruction
template <typename T>
nes_kstudio_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, T &&opts)
: nes_kstudio_slot_device(mconfig, tag, owner, (uint32_t)0)
{
option_reset();
opts(*this);
set_default_option(nullptr);
set_fixed(false);
}
nes_kstudio_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual ~nes_kstudio_slot_device();
// image-level overrides
virtual image_init_result call_load() 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 false; }
virtual bool is_reset_on_load() const noexcept override { return true; }
virtual const char *image_interface() const noexcept override { return "ks_cart"; }
virtual const char *file_extensions() const noexcept override { return "bin"; }
// slot interface overrides
virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override;
uint8_t read(offs_t offset);
void write_prg_bank(uint8_t bank) { if (m_cart) m_cart->write_prg_bank(bank); }
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(); }
kstudio_cart_interface* m_cart;
};
// device type definition
DECLARE_DEVICE_TYPE(NES_KSEXPANSION_SLOT, nes_kstudio_slot_device)
//-----------------------------------------------
//
// Karaoke Studio Expansion cart implementation
//
//-----------------------------------------------
// ======================> nes_kstudio_rom_device
class nes_kstudio_rom_device : public device_t,
public kstudio_cart_interface
{
public:
// construction/destruction
nes_kstudio_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// optional information overrides
virtual const tiny_rom_entry *device_rom_region() const override;
virtual uint8_t* get_cart_base();
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
};
// device type definition
DECLARE_DEVICE_TYPE(NES_KSEXPANSION_ROM, nes_kstudio_rom_device)
//-------------------------------------------
//
// Karaoke Studio Base Cart implementation
//
//-------------------------------------------
// ======================> nes_karaokestudio_device
class nes_karaokestudio_device : public nes_nrom_device
{
public:
// construction/destruction
nes_karaokestudio_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual uint8_t read_m(offs_t offset) override;
virtual uint8_t read_h(offs_t offset) override;
virtual void write_h(offs_t offset, uint8_t data) override;
virtual void pcb_reset() override;
protected:
// device-level overrides
virtual void device_start() override;
virtual ioport_constructor device_input_ports() const override;
virtual void device_add_mconfig(machine_config &config) override;
private:
int m_exp_active;
required_device<nes_kstudio_slot_device> m_subslot;
required_ioport m_mic_ipt;
};
// device type definition
DECLARE_DEVICE_TYPE(NES_KARAOKESTUDIO, nes_karaokestudio_device)
#endif // MAME_BUS_NES_KARASTUDIO_H
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