// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#ifndef MAME_MACHINE_NAOMIM1_H
#define MAME_MACHINE_NAOMIM1_H
#pragma once
#include "naomibd.h"
#define MCFG_NAOMI_M1_BOARD_ADD(_tag, _eeprom_tag, _irq_cb) \
MCFG_NAOMI_BOARD_ADD(_tag, NAOMI_M1_BOARD, _eeprom_tag, _irq_cb)
class naomi_m1_board : public naomi_board
{
public:
naomi_m1_board(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual void submap(address_map &map) override;
DECLARE_READ16_MEMBER(actel_id_r);
protected:
virtual void device_start() override;
virtual void device_reset() override;
virtual void board_setup_address(uint32_t address, bool is_dma) override;
virtual void board_get_buffer(uint8_t *&base, uint32_t &limit) override;
virtual void board_advance(uint32_t size) override;
private:
enum { BUFFER_SIZE = 32768 };
uint32_t key;
uint16_t actel_id;
std::unique_ptr<uint8_t[]> buffer;
uint8_t dict[111], hist[2];
uint64_t avail_val;
uint32_t rom_cur_address, buffer_actual_size, avail_bits;
bool encryption, stream_ended, has_history;
required_memory_region m_region;
void gb_reset();
uint32_t lookb(int bits);
void skipb(int bits);
uint32_t getb(int bits);
void enc_reset();
void enc_fill();
uint32_t get_decrypted_32b();
void wb(uint8_t byte);
};
DECLARE_DEVICE_TYPE(NAOMI_M1_BOARD, naomi_m1_board)
#endif // MAME_MACHINE_NAOMIM1_H