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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#ifndef _NAOMIM1_H_
#define _NAOMIM1_H_
#include "naomibd.h"
#define MCFG_NAOMI_M1_BOARD_ADD(_tag, _eeprom_tag, _actel_tag, _irq_cb) \
MCFG_NAOMI_BOARD_ADD(_tag, NAOMI_M1_BOARD, _eeprom_tag, _actel_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 clock);
virtual DECLARE_ADDRESS_MAP(submap, 16) override;
DECLARE_READ16_MEMBER(actel_id_r);
protected:
virtual void device_start() override;
virtual void device_reset() override;
virtual void board_setup_address(UINT32 address, bool is_dma) override;
virtual void board_get_buffer(UINT8 *&base, UINT32 &limit) override;
virtual void board_advance(UINT32 size) override;
private:
enum { BUFFER_SIZE = 32768 };
UINT32 key;
std::unique_ptr<UINT8[]> buffer;
UINT8 dict[111], hist[2];
UINT64 avail_val;
UINT32 rom_cur_address, buffer_actual_size, avail_bits;
bool encryption, stream_ended, has_history;
void gb_reset();
UINT32 lookb(int bits);
void skipb(int bits);
UINT32 getb(int bits);
void enc_reset();
void enc_fill();
UINT32 get_decrypted_32b();
void wb(UINT8 byte);
};
extern const device_type NAOMI_M1_BOARD;
#endif
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