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// license:BSD-3-Clause
// copyright-holders:Tim Schuerewegen
/*
M-Systems DiskOnChip G3 - Flash Disk with MLC NAND and M-Systems? x2 Technology
(c) 2009 Tim Schuerewegen
*/
#ifndef MAME_MACHINE_DOCG3_H
#define MAME_MACHINE_DOCG3_H
#pragma once
// ======================> diskonchip_g3_device
class diskonchip_g3_device : public device_t, public device_nvram_interface
{
public:
diskonchip_g3_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0U);
void set_size(int _size) { m_size = _size; }
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_nvram_interface overrides
virtual void nvram_default() override;
virtual bool nvram_read(util::read_stream &file) override;
virtual bool nvram_write(util::write_stream &file) override;
public:
uint16_t sec_1_r(offs_t offset);
void sec_1_w(offs_t offset, uint16_t data);
uint16_t sec_2_r(offs_t offset, uint16_t mem_mask = ~0);
void sec_2_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
uint16_t sec_3_r(offs_t offset);
void sec_3_w(offs_t offset, uint16_t data);
private:
uint32_t g3_offset_data_1();
uint32_t g3_offset_data_2();
uint32_t g3_offset_data_3();
uint8_t g3_read_data();
void g3_write_data(uint8_t data);
uint16_t sec_2_read_1000();
uint16_t sec_2_read_1074();
uint8_t sec_2_read_1042();
uint8_t sec_2_read_1046();
uint8_t sec_2_read_1048();
uint8_t sec_2_read_1049();
uint8_t sec_2_read_104A();
uint8_t sec_2_read_104B();
uint8_t sec_2_read_104C();
uint8_t sec_2_read_104D();
uint8_t sec_2_read_104E();
uint8_t sec_2_read_104F();
uint8_t sec_2_read_100E();
uint8_t sec_2_read_1014();
uint8_t sec_2_read_1022();
uint8_t sec_2_read_1038();
uint16_t sec_2_read16(uint32_t offset);
uint8_t sec_2_read8(uint32_t offset);
void sec_2_write_100C(uint8_t data);
void sec_2_write_1032(uint8_t data);
void g3_erase_block();
void sec_2_write_1034(uint8_t data);
void sec_2_write_1036(uint8_t data);
void sec_2_write_1040(uint16_t data);
void sec_2_write_100A(uint8_t data);
void sec_2_write16(uint32_t offset, uint16_t data);
void sec_2_write8(uint32_t offset, uint8_t data);
int m_size = 0;
uint32_t m_planes = 0;
uint32_t m_blocks = 0;
uint32_t m_pages = 0;
uint32_t m_user_data_size = 0;
uint32_t m_extra_area_size = 0;
std::unique_ptr<uint8_t[]> m_data[3]{};
uint32_t m_data_size[3]{};
uint8_t m_sec_2[0x800]{};
uint32_t m_data_1036 = 0;
uint32_t m_data_1036_count = 0;
uint32_t m_transfer_offset = 0;
uint8_t m_device = 0;
uint32_t m_block = 0;
uint32_t m_page = 0;
uint32_t m_plane = 0;
uint32_t m_transfersize = 0;
uint8_t m_test = 0;
uint32_t m_address_count = 0;
};
// device type definition
DECLARE_DEVICE_TYPE(DISKONCHIP_G3, diskonchip_g3_device)
#endif // MAME_MACHINE_DOCG3_H
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