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Diffstat (limited to 'src/devices/bus/a800/maxflash.h')
-rw-r--r-- | src/devices/bus/a800/maxflash.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/devices/bus/a800/maxflash.h b/src/devices/bus/a800/maxflash.h new file mode 100644 index 00000000000..b096e41b8b3 --- /dev/null +++ b/src/devices/bus/a800/maxflash.h @@ -0,0 +1,53 @@ +// license: BSD-3-Clause +// copyright-holders: Angelo Salese + +#ifndef MAME_BUS_A800_MAXFLASH_H +#define MAME_BUS_A800_MAXFLASH_H + +#pragma once + +#include "rom.h" +#include "machine/intelfsh.h" + +class a800_maxflash_128kb_device : public a800_rom_device +{ +public: + a800_maxflash_128kb_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); + a800_maxflash_128kb_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + + virtual void cart_map(address_map &map) override ATTR_COLD; + virtual void cctl_map(address_map &map) override ATTR_COLD; + virtual std::tuple<int, int> get_initial_rd_state() override { return std::make_tuple(0, 1); } + +protected: + virtual void device_add_mconfig(machine_config &config) override ATTR_COLD; + + virtual void device_start() override ATTR_COLD; + virtual void device_reset() override ATTR_COLD; + + required_device<intelfsh8_device> m_flash; + + uint8_t disable_rom_r(offs_t offset); + void disable_rom_w(offs_t offset, uint8_t data); + uint8_t rom_bank_r(offs_t offset); + void rom_bank_w(offs_t offset, uint8_t data); + +private: + int m_bank; +}; + +class a800_maxflash_1mb_device : public a800_maxflash_128kb_device +{ +public: + a800_maxflash_1mb_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + + virtual void cctl_map(address_map &map) override ATTR_COLD; + +protected: + virtual void device_add_mconfig(machine_config &config) override ATTR_COLD; +}; + +DECLARE_DEVICE_TYPE(A800_MAXFLASH_128KB, a800_maxflash_128kb_device) +DECLARE_DEVICE_TYPE(A800_MAXFLASH_1MB, a800_maxflash_1mb_device) + +#endif // MAME_BUS_A800_MAXFLASH_H |