diff options
Diffstat (limited to 'src/devices/bus/wswan/rom.h')
-rw-r--r-- | src/devices/bus/wswan/rom.h | 101 |
1 files changed, 67 insertions, 34 deletions
diff --git a/src/devices/bus/wswan/rom.h b/src/devices/bus/wswan/rom.h index 916562ab6e2..9a47ebf8023 100644 --- a/src/devices/bus/wswan/rom.h +++ b/src/devices/bus/wswan/rom.h @@ -13,38 +13,38 @@ class ws_rom_device : public device_t, { public: // construction/destruction - ws_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + ws_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); // reading and writing - virtual uint8_t read_rom20(offs_t offset) override; - virtual uint8_t read_rom30(offs_t offset) override; - virtual uint8_t read_rom40(offs_t offset) override; - virtual uint8_t read_io(offs_t offset) override; - virtual void write_io(offs_t offset, uint8_t data) override; + virtual u16 read_rom20(offs_t offset, u16 mem_mask) override; + virtual u16 read_rom30(offs_t offset, u16 mem_mask) override; + virtual u16 read_rom40(offs_t offset, u16 mem_mask) override; + virtual u16 read_io(offs_t offset, u16 mem_mask) override; + virtual void write_io(offs_t offset, u16 data, u16 mem_mask) override; protected: - static constexpr device_timer_id TIMER_RTC = 0; - - ws_rom_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); + ws_rom_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock); // device-level overrides virtual void device_start() override; virtual void device_reset() override; - virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; - uint8_t m_io_regs[0x10]; - uint32_t m_base20, m_base30, m_base40; + TIMER_CALLBACK_MEMBER(rtc_tick); + + u16 m_io_regs[8]; + u32 m_base20, m_base30, m_base40; + u32 m_rom_mask; // RTC - uint8_t m_rtc_setting; /* Timer setting byte */ - uint8_t m_rtc_year; /* Year */ - uint8_t m_rtc_month; /* Month */ - uint8_t m_rtc_day; /* Day */ - uint8_t m_rtc_day_of_week; /* Day of the week */ - uint8_t m_rtc_hour; /* Hour, high bit = 0 => AM, high bit = 1 => PM */ - uint8_t m_rtc_minute; /* Minute */ - uint8_t m_rtc_second; /* Second */ - uint8_t m_rtc_index; /* index for reading/writing of current of alarm time */ + u8 m_rtc_setting; /* Timer setting byte */ + u8 m_rtc_year; /* Year */ + u8 m_rtc_month; /* Month */ + u8 m_rtc_day; /* Day */ + u8 m_rtc_day_of_week; /* Day of the week */ + u8 m_rtc_hour; /* Hour, high bit = 0 => AM, high bit = 1 => PM */ + u8 m_rtc_minute; /* Minute */ + u8 m_rtc_second; /* Second */ + u8 m_rtc_index; /* index for reading/writing of current of alarm time */ emu_timer *rtc_timer; }; @@ -56,20 +56,22 @@ class ws_rom_sram_device : public ws_rom_device { public: // construction/destruction - ws_rom_sram_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + ws_rom_sram_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); // reading and writing - virtual uint8_t read_ram(offs_t offset) override; - virtual void write_ram(offs_t offset, uint8_t data) override; - virtual void write_io(offs_t offset, uint8_t data) override; + virtual u16 read_ram(offs_t offset, u16 mem_mask) override; + virtual void write_ram(offs_t offset, u16 data, u16 mem_mask) override; + virtual void write_io(offs_t offset, u16 data, u16 mem_mask) override; protected: + ws_rom_sram_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock); + // device-level overrides virtual void device_start() override; virtual void device_reset() override; private: - uint32_t m_nvram_base; + u32 m_nvram_base; }; @@ -79,11 +81,11 @@ class ws_rom_eeprom_device : public ws_rom_device { public: // construction/destruction - ws_rom_eeprom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + ws_rom_eeprom_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); // reading and writing - virtual uint8_t read_io(offs_t offset) override; - virtual void write_io(offs_t offset, uint8_t data) override; + virtual u16 read_io(offs_t offset, u16 mem_mask) override; + virtual void write_io(offs_t offset, u16 data, u16 mem_mask) override; protected: // device-level overrides @@ -91,18 +93,49 @@ protected: virtual void device_reset() override; private: - uint8_t m_eeprom_mode; /* eeprom mode */ - uint16_t m_eeprom_address; /* Read/write address */ - uint8_t m_eeprom_command; /* Commands: 00, 01, 02, 03, 04, 08, 0C */ - uint8_t m_eeprom_start; /* start bit */ - uint8_t m_eeprom_write_enabled; /* write enabled yes/no */ + u8 m_eeprom_mode; /* eeprom mode */ + u16 m_eeprom_address; /* Read/write address */ + u8 m_eeprom_command; /* Commands: 00, 01, 02, 03, 04, 08, 0C */ + u8 m_eeprom_start; /* start bit */ + u8 m_eeprom_write_enabled; /* write enabled yes/no */ }; +class ws_wwitch_device : public ws_rom_sram_device +{ +public: + // construction/destruction + ws_wwitch_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + + // reading and writing + virtual u16 read_ram(offs_t offset, u16 mem_mask) override; + virtual void write_ram(offs_t offset, u16 data, u16 mem_mask) override; + +protected: + // device-level overrides + virtual void device_start() override; + virtual void device_reset() override; + +private: + enum { + READ_MODE = 0, + COMMAND_MODE + }; + u8 m_flash_seq; + u8 m_flash_command; + bool m_write_flash; + bool m_writing_flash; + bool m_write_resetting; + u8 m_flash_mode; + u8 m_flash_status; + u8 m_flash_count; +}; + // device type definition DECLARE_DEVICE_TYPE(WS_ROM_STD, ws_rom_device) DECLARE_DEVICE_TYPE(WS_ROM_SRAM, ws_rom_sram_device) DECLARE_DEVICE_TYPE(WS_ROM_EEPROM, ws_rom_eeprom_device) +DECLARE_DEVICE_TYPE(WS_ROM_WWITCH, ws_wwitch_device) #endif // MAME_BUS_WSWAN_ROM_H |