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// license:BSD-3-Clause
// copyright-holders:smf
#ifndef MAME_MACHINE_DS128X_H
#define MAME_MACHINE_DS128X_H
#include "mc146818.h"
// ======================> ds12885_device
class ds12885_device : public mc146818_device
{
public:
// construction/destruction
ds12885_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 32'768);
protected:
ds12885_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
virtual int data_size() const override { return 128; }
virtual int get_timer_bypass() const override;
};
// device type definition
DECLARE_DEVICE_TYPE(DS12885, ds12885_device)
// ======================> ds12885ext_device
class ds12885ext_device : public ds12885_device
{
public:
// construction/destruction
ds12885ext_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 32'768);
// read/write access to extended ram
uint8_t read_extended(offs_t offset);
void write_extended(offs_t offset, uint8_t data);
protected:
virtual int data_size() const override { return 256; }
};
// device type definition
DECLARE_DEVICE_TYPE(DS12885EXT, ds12885ext_device)
#endif // MAME_MACHINE_DS128X_H
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