diff options
Diffstat (limited to 'src/mess/machine/nes_legacy.h')
-rw-r--r-- | src/mess/machine/nes_legacy.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/mess/machine/nes_legacy.h b/src/mess/machine/nes_legacy.h new file mode 100644 index 00000000000..df905ce1a89 --- /dev/null +++ b/src/mess/machine/nes_legacy.h @@ -0,0 +1,71 @@ +#ifndef __NES_LEGACY_H +#define __NES_LEGACY_H + +#include "machine/nes_nxrom.h" + + +// ======================> nes_ffe3_device + +class nes_ffe3_device : public nes_nrom_device +{ +public: + // construction/destruction + nes_ffe3_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // device-level overrides + virtual void device_start(); + virtual DECLARE_WRITE8_MEMBER(write_h); + + virtual void pcb_reset(); +}; + + +// ======================> nes_ffe4_device + +class nes_ffe4_device : public nes_nrom_device +{ +public: + // construction/destruction + nes_ffe4_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); + nes_ffe4_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // device-level overrides + virtual void device_start(); + virtual DECLARE_WRITE8_MEMBER(write_l); + virtual DECLARE_WRITE8_MEMBER(write_h); + + virtual void hblank_irq(int scanline, int vblank, int blanked); + virtual void pcb_reset(); + +protected: + UINT16 m_irq_count; + int m_irq_enable; + + UINT8 m_latch; +}; + + +// ======================> nes_ffe8_device + +class nes_ffe8_device : public nes_ffe4_device +{ +public: + // construction/destruction + nes_ffe8_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // device-level overrides + virtual DECLARE_WRITE8_MEMBER(write_l); + virtual DECLARE_WRITE8_MEMBER(write_h) {} + + virtual void pcb_reset(); +}; + + + +// device type definition +extern const device_type NES_FFE3; +extern const device_type NES_FFE4; +extern const device_type NES_FFE8; + + +#endif |