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// license:BSD-3-Clause
// copyright-holders:Wilbert Pol
#ifndef MAME_BUS_MSX_SLOT_SONY08_H
#define MAME_BUS_MSX_SLOT_SONY08_H
#pragma once
#include "slot.h"
#include "machine/nvram.h"
DECLARE_DEVICE_TYPE(MSX_SLOT_SONY08, msx_slot_sony08_device)
#define MCFG_MSX_SLOT_SONY08_ADD(_tag, _startpage, _numpages, _region, _offset) \
MCFG_MSX_INTERNAL_SLOT_ADD(_tag, MSX_SLOT_SONY08, _startpage, _numpages) \
downcast<msx_slot_sony08_device &>(*device).set_rom_start("^" _region, _offset);
class msx_slot_sony08_device : public device_t,
public msx_internal_slot_interface
{
public:
msx_slot_sony08_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// configuration helpers
void set_rom_start(const char *region, uint32_t offset) { m_rom_region.set_tag(region); m_region_offset = offset; }
virtual DECLARE_READ8_MEMBER(read) override;
virtual DECLARE_WRITE8_MEMBER(write) override;
protected:
virtual void device_start() override;
virtual void device_add_mconfig(machine_config &config) override;
void restore_banks();
private:
required_device<nvram_device> m_nvram;
required_memory_region m_rom_region;
uint32_t m_region_offset;
const uint8_t *m_rom;
uint8_t m_selected_bank[8];
const uint8_t *m_bank_base[8];
uint8_t m_sram[0x4000];
void map_bank(int bank);
};
#endif // MAME_BUS_MSX_SLOT_SONY08_H
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