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-rw-r--r--src/devices/bus/a2bus/agat7langcard.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/src/devices/bus/a2bus/agat7langcard.h b/src/devices/bus/a2bus/agat7langcard.h
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+// license:BSD-3-Clause
+// copyright-holders:Sergey Svishchev
+/*********************************************************************
+
+ agat7langcard.h
+
+ Implemention of the Agat-7 language card
+
+*********************************************************************/
+
+#ifndef __A2BUS_AGAT7LANGCARD__
+#define __A2BUS_AGAT7LANGCARD__
+
+#include "emu.h"
+#include "a2bus.h"
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+class a2bus_agat7langcard_device:
+ public device_t,
+ public device_a2bus_card_interface
+{
+public:
+ // construction/destruction
+ a2bus_agat7langcard_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, uint32_t clock, const char *shortname, const char *source);
+ a2bus_agat7langcard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+protected:
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+ // overrides of standard a2bus slot functions
+ virtual uint8_t read_cnxx(address_space &space, uint8_t offset) override;
+ virtual void write_cnxx(address_space &space, uint8_t offset, uint8_t data) override;
+ virtual uint8_t read_inh_rom(address_space &space, uint16_t offset) override;
+ virtual void write_inh_rom(address_space &space, uint16_t offset, uint8_t data) override;
+ virtual uint16_t inh_start() override { return 0xd000; }
+ virtual uint16_t inh_end() override { return 0xffff; }
+ virtual int inh_type() override;
+
+private:
+ void do_io(int offset);
+
+ int m_inh_state;
+ int m_last_offset;
+ int m_dxxx_bank;
+ int m_main_bank;
+ uint8_t m_ram[32*1024];
+ uint8_t m_mode;
+};
+
+// device type definition
+extern const device_type A2BUS_AGAT7LANGCARD;
+
+#endif /* __A2BUS_AGAT7LANGCARD__ */