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// license:BSD-3-Clause
// copyright-holders:David Haywood, Miodrag Milanovic
/*********************************************************************
pgm2_memcard.h
PGM2 Memory card functions.
(based on ng_memcard.h)
*********************************************************************/
#ifndef MAME_MACHINE_PGM2_MEMCARD_H
#define MAME_MACHINE_PGM2_MEMCARD_H
#pragma once
/***************************************************************************
FUNCTION PROTOTYPES
***************************************************************************/
// ======================> pgm2_memcard_device
class pgm2_memcard_device : public device_t,
public device_image_interface
{
public:
// construction/destruction
pgm2_memcard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual iodevice_t image_type() const noexcept override { return IO_MEMCARD; }
virtual bool is_readable() const noexcept override { return true; }
virtual bool is_writeable() const noexcept override { return true; }
virtual bool is_creatable() const noexcept override { return true; }
virtual bool must_be_loaded() const noexcept override { return false; }
virtual bool is_reset_on_load() const noexcept override { return false; }
virtual const char *file_extensions() const noexcept override { return "pg2,bin,mem"; }
virtual image_init_result call_load() override;
virtual void call_unload() override;
virtual image_init_result call_create(int format_type, util::option_resolution *format_options) override;
// device-level overrides
virtual void device_start() override;
u8 read(offs_t offset);
void write(offs_t offset, u8 data);
u8 read_prot(offs_t offset);
void write_prot(offs_t offset, u8 data);
u8 read_sec(offs_t offset);
void write_sec(offs_t offset, u8 data);
void auth(u8 p1, u8 p2, u8 p3);
/* returns the index of the current memory card, or -1 if none */
int present() { return is_loaded() ? 0 : -1; }
private:
u8 m_memcard_data[0x100];
u8 m_protection_data[4];
u8 m_security_data[4];
bool m_authenticated;
};
// device type definition
DECLARE_DEVICE_TYPE(PGM2_MEMCARD, pgm2_memcard_device)
#endif // MAME_MACHINE_PGM2_MEMCARD_H
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