55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
// license: GPL-2.0+
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// copyright-holders: Dirk Best
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/***************************************************************************
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Silicon Disc
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A 256k RAM drive that gets accessed as drive 3.
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***************************************************************************/
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#ifndef MAME_BUS_EINSTEIN_SILICON_DISC_H
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#define MAME_BUS_EINSTEIN_SILICON_DISC_H
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#pragma once
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#include "pipe.h"
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> einstein_silicon_disc_device
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class einstein_silicon_disc_device : public device_t, public device_tatung_pipe_interface
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{
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public:
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// construction/destruction
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einstein_silicon_disc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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DECLARE_WRITE8_MEMBER(sector_low_w);
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DECLARE_WRITE8_MEMBER(sector_high_w);
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DECLARE_READ8_MEMBER(ram_r);
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DECLARE_WRITE8_MEMBER(ram_w);
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protected:
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virtual const tiny_rom_entry *device_rom_region() const override;
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virtual void device_start() override;
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virtual void device_reset() override;
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private:
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DECLARE_ADDRESS_MAP(map, 8);
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required_memory_region m_rom;
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required_memory_region m_bios;
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std::unique_ptr<uint8_t[]> m_ram;
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uint16_t m_sector;
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};
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// device type definition
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DECLARE_DEVICE_TYPE(EINSTEIN_SILICON_DISC, einstein_silicon_disc_device)
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#endif // MAME_BUS_EINSTEIN_SILICON_DISC_H
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