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-rw-r--r--src/devices/bus/a800/maxflash.h53
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diff --git a/src/devices/bus/a800/maxflash.h b/src/devices/bus/a800/maxflash.h
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+// 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