diff options
Diffstat (limited to 'src/devices/bus/nes/mmc2.h')
-rw-r--r-- | src/devices/bus/nes/mmc2.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/devices/bus/nes/mmc2.h b/src/devices/bus/nes/mmc2.h new file mode 100644 index 00000000000..205fcf7a1d4 --- /dev/null +++ b/src/devices/bus/nes/mmc2.h @@ -0,0 +1,54 @@ +// license:BSD-3-Clause +// copyright-holders:Fabio Priuli +#ifndef __NES_MMC2_H +#define __NES_MMC2_H + +#include "nxrom.h" + + +// ======================> nes_pxrom_device + +class nes_pxrom_device : public nes_nrom_device +{ +public: + // construction/destruction + nes_pxrom_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_pxrom_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // device-level overrides + virtual void device_start(); + virtual DECLARE_WRITE8_MEMBER(pxrom_write); + virtual DECLARE_WRITE8_MEMBER(write_h) { pxrom_write(space, offset, data, mem_mask); } + + virtual void ppu_latch(offs_t offset); + virtual void pcb_reset(); + +protected: + UINT8 m_reg[4]; + int m_latch1, m_latch2; +}; + + +// ======================> nes_fxrom_device + +class nes_fxrom_device : public nes_pxrom_device +{ +public: + // construction/destruction + nes_fxrom_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // device-level overrides + virtual DECLARE_WRITE8_MEMBER(write_h); + + virtual void pcb_reset(); +}; + + + + + +// device type definition +extern const device_type NES_PXROM; +extern const device_type NES_FXROM; + +#endif |