diff options
Diffstat (limited to 'src/devices/bus/snes/bsx.h')
-rw-r--r-- | src/devices/bus/snes/bsx.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/src/devices/bus/snes/bsx.h b/src/devices/bus/snes/bsx.h new file mode 100644 index 00000000000..a91e713560d --- /dev/null +++ b/src/devices/bus/snes/bsx.h @@ -0,0 +1,151 @@ +// license:BSD-3-Clause +// copyright-holders:Fabio Priuli +#ifndef __SNS_BSX_H +#define __SNS_BSX_H + +#include "snes_slot.h" +#include "rom.h" +#include "rom21.h" + +class BSX_base +{ +public: + BSX_base(running_machine &machine); + running_machine &machine() const { return m_machine; } + + void init(); + UINT8 read(UINT32 offset); + void write(UINT32 offset, UINT8 data); + +private: + // regs + UINT8 regs[0x18]; // 0x2188-0x219f + + // counter + clock + UINT8 r2192_counter; + UINT8 r2192_hour, r2192_minute, r2192_second; + + running_machine& m_machine; +}; + +// ======================> sns_rom_bsx_device + +class sns_rom_bsx_device : public sns_rom_device +{ +public: + // construction/destruction + sns_rom_bsx_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source); + sns_rom_bsx_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + virtual machine_config_constructor device_mconfig_additions() const; + + // additional reading and writing + virtual DECLARE_READ8_MEMBER(read_l); + virtual DECLARE_READ8_MEMBER(read_h); + virtual DECLARE_WRITE8_MEMBER(write_l); + virtual DECLARE_WRITE8_MEMBER(write_h); + virtual DECLARE_READ8_MEMBER(chip_read); + virtual DECLARE_WRITE8_MEMBER(chip_write); + + // base regs + BSX_base *m_base_unit; + + // cart regs + UINT8 m_cart_regs[16]; + UINT8 access_00_1f; // 1 = CART, 0 = NOTHING + UINT8 access_80_9f; // 1 = CART, 0 = NOTHING + UINT8 access_40_4f; // 1 = NOTHING, 0 = PRAM + UINT8 access_50_5f; // 1 = NOTHING, 0 = PRAM + UINT8 access_60_6f; // 1 = PRAM, 0 = NOTHING + UINT8 rom_access; // 2 = HiROM, 1 = LoROM, 0 = PRAM + void access_update(); + + + UINT8 m_pram[0x80000]; + +private: + required_device<sns_bsx_cart_slot_device> m_slot; +}; + +// ======================> sns_rom_bsxlo_device + +class sns_rom_bsxlo_device : public sns_rom_device +{ +public: + // construction/destruction + sns_rom_bsxlo_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // device-level overrides + virtual void device_start(); + virtual machine_config_constructor device_mconfig_additions() const; + + // additional reading and writing + virtual DECLARE_READ8_MEMBER(read_l); + virtual DECLARE_READ8_MEMBER(read_h); + +private: + required_device<sns_bsx_cart_slot_device> m_slot; +}; + +// ======================> sns_rom_bsxhi_device + +class sns_rom_bsxhi_device : public sns_rom21_device +{ +public: + // construction/destruction + sns_rom_bsxhi_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // device-level overrides + virtual void device_start(); + virtual machine_config_constructor device_mconfig_additions() const; + + // additional reading and writing + virtual DECLARE_READ8_MEMBER(read_l); + virtual DECLARE_READ8_MEMBER(read_h); + +private: + required_device<sns_bsx_cart_slot_device> m_slot; +}; + + +// ======================> sns_rom_bsmempak_device + +class sns_rom_bsmempak_device : public sns_rom_device +{ +public: + // construction/destruction + sns_rom_bsmempak_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + + // additional reading and writing + virtual DECLARE_READ8_MEMBER(read_l); + virtual DECLARE_READ8_MEMBER(read_h); + virtual DECLARE_WRITE8_MEMBER(write_l); +// virtual DECLARE_WRITE8_MEMBER(write_h); +// virtual DECLARE_READ8_MEMBER(chip_read); +// virtual DECLARE_WRITE8_MEMBER(chip_write); + + // flash regs + UINT32 m_command; + UINT8 m_write_old; + UINT8 m_write_new; + + int m_flash_enable; + int m_read_enable; + int m_write_enable; +}; + + +// device type definition +extern const device_type SNS_ROM_BSX; +extern const device_type SNS_LOROM_BSX; +extern const device_type SNS_HIROM_BSX; +extern const device_type SNS_BSMEMPAK; + +#endif |