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Diffstat (limited to 'src/devices/bus/msx/slot/ax230.h')
-rw-r--r-- | src/devices/bus/msx/slot/ax230.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/devices/bus/msx/slot/ax230.h b/src/devices/bus/msx/slot/ax230.h new file mode 100644 index 00000000000..31f5fa3df8d --- /dev/null +++ b/src/devices/bus/msx/slot/ax230.h @@ -0,0 +1,38 @@ +// license:BSD-3-Clause +// copyright-holders:Wilbert Pol +#ifndef MAME_BUS_MSX_SLOT_AX230_H +#define MAME_BUS_MSX_SLOT_AX230_H + +#pragma once + +#include "slot.h" + + +DECLARE_DEVICE_TYPE(MSX_SLOT_AX230, msx_slot_ax230_device) + + +class msx_slot_ax230_device : public device_t, public msx_internal_slot_interface +{ +public: + msx_slot_ax230_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + + // configuration helpers + void set_rom_start(const char *region, u32 offset) { m_rom_region.set_tag(region); m_region_offset = offset; } + +protected: + virtual void device_start() override; + virtual void device_reset() override; + +private: + static constexpr u8 BANKS = 0x80; + static constexpr u8 BANK_MASK = BANKS - 1; + + void mapper_write(offs_t offset, uint8_t data); + + required_memory_region m_rom_region; + memory_bank_array_creator<4> m_rombank; + u32 m_region_offset; +}; + + +#endif // MAME_BUS_MSX_SLOT_AX230_H |