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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Western Digital WDXT-GEN ISA XT MFM Hard Disk Controller
**********************************************************************
Emulated here is the variant supplied with Amstrad PC1512/1640,
which has a custom BIOS and is coupled with a Tandom TM262 HDD.
chdman -createblankhd tandon_tm262.chd 615 4 17 512
**********************************************************************/
#ifndef MAME_BUS_ISA8_WDXT_GEN_H
#define MAME_BUS_ISA8_WDXT_GEN_H
#pragma once
#include "isa.h"
#include "cpu/mcs48/mcs48.h"
#include "machine/wd11c00_17.h"
#include "machine/wd2010.h"
#include "imagedev/harddriv.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> wdxt_gen_device
class wdxt_gen_device : public device_t,
public device_isa8_card_interface
{
public:
// construction/destruction
wdxt_gen_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
// device_isa8_card_interface
virtual uint8_t dack_r(int line) override;
virtual void dack_w(int line, uint8_t data) override;
virtual void dack_line_w(int line, int state) override;
private:
DECLARE_WRITE_LINE_MEMBER( irq5_w );
DECLARE_WRITE_LINE_MEMBER( drq3_w );
DECLARE_WRITE_LINE_MEMBER( mr_w );
uint8_t rd322_r();
uint8_t ram_r(offs_t offset);
void ram_w(offs_t offset, uint8_t data);
DECLARE_READ_LINE_MEMBER( wd1015_t1_r );
uint8_t wd1015_p1_r();
void wd1015_p1_w(uint8_t data);
uint8_t wd1015_p2_r();
void wd1015_p2_w(uint8_t data);
void wd1015_io(address_map &map);
required_device<cpu_device> m_maincpu;
required_device<wd11c00_17_device> m_host;
required_device<wd2010_device> m_hdc;
uint8_t m_ram[0x800];
//uint8_t m_hdc_addr;
};
// device type definition
DECLARE_DEVICE_TYPE(ISA8_WDXT_GEN, wdxt_gen_device)
#endif // MAME_BUS_ISA8_WDXT_GEN_H
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