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// license:BSD-3-Clause
// copyright-holders:Fabio Priuli
#ifndef MAME_BUS_A7800_CPUWIZ_H
#define MAME_BUS_A7800_CPUWIZ_H
#pragma once
#include "a78_slot.h"
#include "rom.h"
// ======================> a78_versaboard_device
class a78_versaboard_device : public a78_rom_sg_device
{
public:
// construction/destruction
a78_versaboard_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// reading and writing
virtual uint8_t read_40xx(offs_t offset) override;
virtual void write_40xx(offs_t offset, uint8_t data) override;
protected:
a78_versaboard_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, const XTAL &clock);
int m_ram_bank;
};
// ======================> a78_megacart_device
class a78_megacart_device : public a78_versaboard_device
{
public:
// construction/destruction
a78_megacart_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
// reading and writing
virtual void write_40xx(offs_t offset, uint8_t data) override;
};
// VersaBoard variants of the standard carts + POKEY at 0x0450!
// ======================> a78_rom_p450_vb_device
class a78_rom_p450_vb_device : public a78_versaboard_device
{
public:
// construction/destruction
a78_rom_p450_vb_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
// reading and writing
virtual uint8_t read_04xx(offs_t offset) override { if (offset >= 0x50 && offset < 0x60) return m_pokey450->read(offset & 0x0f); else return 0xff; }
virtual void write_04xx(offs_t offset, uint8_t data) override { if (offset >= 0x50 && offset < 0x60) m_pokey450->write(offset & 0x0f, data); }
protected:
virtual void device_add_mconfig(machine_config &config) override;
required_device<pokey_device> m_pokey450;
};
// device type definition
DECLARE_DEVICE_TYPE(A78_ROM_VERSABOARD, a78_versaboard_device)
DECLARE_DEVICE_TYPE(A78_ROM_MEGACART, a78_megacart_device)
DECLARE_DEVICE_TYPE(A78_ROM_P450_VB, a78_rom_p450_vb_device)
#endif // MAME_BUS_A7800_CPUWIZ_H
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