diff options
Diffstat (limited to 'src/devices/bus/msx_slot/panasonic08.h')
-rw-r--r-- | src/devices/bus/msx_slot/panasonic08.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/devices/bus/msx_slot/panasonic08.h b/src/devices/bus/msx_slot/panasonic08.h new file mode 100644 index 00000000000..c9be040678f --- /dev/null +++ b/src/devices/bus/msx_slot/panasonic08.h @@ -0,0 +1,48 @@ +// license:BSD-3-Clause +// copyright-holders:Wilbert Pol +#ifndef __MSX_SLOT_PANASONIC08_H +#define __MSX_SLOT_PANASONIC08_H + +#include "slot.h" +#include "machine/nvram.h" + + +extern const device_type MSX_SLOT_PANASONIC08; + + +#define MCFG_MSX_SLOT_PANASONIC08_ADD(_tag, _startpage, _numpages, _region, _offset) \ + MCFG_MSX_INTERNAL_SLOT_ADD(_tag, MSX_SLOT_PANASONIC08, _startpage, _numpages) \ + msx_slot_panasonic08_device::set_rom_start(*device, _region, _offset); + +class msx_slot_panasonic08_device : public device_t, + public msx_internal_slot_interface +{ +public: + msx_slot_panasonic08_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // static configuration helpers + static void set_rom_start(device_t &device, const char *region, UINT32 offset); + + virtual void device_start(); + virtual machine_config_constructor device_mconfig_additions() const; + + virtual DECLARE_READ8_MEMBER(read); + virtual DECLARE_WRITE8_MEMBER(write); + + void restore_banks(); + +private: + required_device<nvram_device> m_nvram; + const char *m_region; + UINT32 m_region_offset; + const UINT8 *m_rom; + UINT8 m_selected_bank[8]; + const UINT8 *m_bank_base[8]; + UINT8 m_control; + dynamic_buffer m_sram; + + void map_bank(int bank); +}; + + +#endif |