// license:BSD-3-Clause // copyright-holders:Olivier Galibert,Andreas Naive #ifndef _NAOMIM4_H_ #define _NAOMIM4_H_ #include "naomibd.h" #define MCFG_NAOMI_M4_BOARD_ADD(_tag, _key_tag, _eeprom_tag, _actel_tag, _irq_cb) \ MCFG_NAOMI_BOARD_ADD(_tag, NAOMI_M4_BOARD, _eeprom_tag, _actel_tag, _irq_cb) \ naomi_m4_board::static_set_tags(*device, _key_tag); class naomi_m4_board : public naomi_board { public: naomi_m4_board(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); static void static_set_tags(device_t &device, const char *_key_tag); virtual DECLARE_ADDRESS_MAP(submap, 16); DECLARE_READ16_MEMBER(m4_id_r); protected: virtual void device_start(); virtual void device_reset(); virtual void board_setup_address(UINT32 address, bool is_dma); virtual void board_get_buffer(UINT8 *&base, UINT32 &limit); virtual void board_advance(UINT32 size); virtual void board_write(offs_t offset, UINT16 data); private: enum { BUFFER_SIZE = 32768 }; static const UINT8 k_sboxes[4][16]; const char *key_tag; UINT16 subkey1, subkey2; UINT16 *one_round; UINT8 *buffer; UINT32 rom_cur_address, buffer_actual_size; UINT16 iv; UINT8 counter; bool encryption; bool cfi_mode; void enc_init(); void enc_reset(); void enc_fill(); UINT16 decrypt_one_round(UINT16 word, UINT16 subkey); }; extern const device_type NAOMI_M4_BOARD; #endif