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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
/***************************************************************************
dirom.h
Interface to a rom, either through a memory map or a region
***************************************************************************/
#pragma once
#ifndef __EMU_H__
#error Dont include this file directly; include emu.h instead.
#endif
#ifndef MAME_EMU_DIROM_H
#define MAME_EMU_DIROM_H
class device_rom_interface : public device_memory_interface
{
public:
device_rom_interface(const machine_config &mconfig, device_t &device, u8 addrwidth, endianness_t endian = ENDIANNESS_LITTLE, u8 datawidth = 8);
virtual ~device_rom_interface();
inline u8 read_byte(offs_t byteaddress) { return m_rom_direct->read_byte(byteaddress); }
inline u16 read_word(offs_t byteaddress) { return m_rom_direct->read_word(byteaddress); }
inline u32 read_dword(offs_t byteaddress) { return m_rom_direct->read_dword(byteaddress); }
inline u64 read_qword(offs_t byteaddress) { return m_rom_direct->read_qword(byteaddress); }
void set_rom(const void *base, u32 size);
void set_rom_bank(int bank);
protected:
virtual void rom_bank_updated() = 0;
private:
const address_space_config m_rom_config;
direct_read_data *m_rom_direct;
memory_bank *m_bank;
int m_cur_bank, m_bank_count;
virtual const address_space_config *memory_space_config(address_spacenum spacenum) const override;
virtual void interface_pre_start() override;
DECLARE_READ8_MEMBER(z8_r);
DECLARE_READ16_MEMBER(z16_r);
DECLARE_READ32_MEMBER(z32_r);
DECLARE_READ64_MEMBER(z64_r);
void reset_bank();
};
#endif // MAME_EMU_DIROM_H
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