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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore 1570/1571/1571CR Single Disk Drive emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************/
#pragma once
#ifndef __C1571__
#define __C1571__
#include "emu.h"
#include "cbmiec.h"
#include "bus/c64/bn1541.h"
#include "cpu/m6502/m6502.h"
#include "imagedev/flopdrv.h"
#include "formats/d64_dsk.h"
#include "formats/g64_dsk.h"
#include "machine/64h156.h"
#include "machine/6522via.h"
#include "machine/isa.h"
#include "machine/mos6526.h"
#include "machine/wd_fdc.h"
#include "machine/isa_wd1002a_wx1.h"
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
#define C1571_TAG "c1571"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> c1571_device
class c1571_device : public device_t,
public device_cbm_iec_interface,
public device_c64_floppy_parallel_interface
{
public:
// construction/destruction
c1571_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
c1571_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual const rom_entry *device_rom_region() const;
virtual machine_config_constructor device_mconfig_additions() const;
virtual ioport_constructor device_input_ports() const;
DECLARE_WRITE_LINE_MEMBER( via0_irq_w );
DECLARE_READ8_MEMBER( via0_pa_r );
DECLARE_WRITE8_MEMBER( via0_pa_w );
DECLARE_READ8_MEMBER( via0_pb_r );
DECLARE_WRITE8_MEMBER( via0_pb_w );
DECLARE_READ_LINE_MEMBER( atn_in_r );
DECLARE_READ_LINE_MEMBER( wprt_r );
DECLARE_READ8_MEMBER( via1_r );
DECLARE_WRITE8_MEMBER( via1_w );
DECLARE_WRITE_LINE_MEMBER( via1_irq_w );
DECLARE_READ8_MEMBER( via1_pb_r );
DECLARE_WRITE8_MEMBER( via1_pb_w );
DECLARE_WRITE_LINE_MEMBER( cia_irq_w );
DECLARE_WRITE_LINE_MEMBER( cia_pc_w );
DECLARE_WRITE_LINE_MEMBER( cia_cnt_w );
DECLARE_WRITE_LINE_MEMBER( cia_sp_w );
DECLARE_READ8_MEMBER( cia_pb_r );
DECLARE_WRITE8_MEMBER( cia_pb_w );
DECLARE_WRITE_LINE_MEMBER( byte_w );
DECLARE_WRITE_LINE_MEMBER( wpt_w );
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
// device_cbm_iec_interface overrides
virtual void cbm_iec_srq(int state);
virtual void cbm_iec_atn(int state);
virtual void cbm_iec_data(int state);
virtual void cbm_iec_reset(int state);
// device_c64_floppy_parallel_interface overrides
virtual void parallel_data_w(UINT8 data);
virtual void parallel_strobe_w(int state);
enum
{
LED_POWER = 0,
LED_ACT
};
void update_iec();
required_device<cpu_device> m_maincpu;
required_device<via6522_device> m_via0;
required_device<via6522_device> m_via1;
required_device<mos6526_device> m_cia;
required_device<wd1770_t> m_fdc;
required_device<c64h156_device> m_ga;
required_device<legacy_floppy_image_device> m_image;
//required_device<floppy_image_device> m_floppy;
required_ioport m_address;
// signals
int m_1_2mhz; // clock speed
// IEC bus
int m_data_out; // serial data out
int m_ser_dir; // fast serial direction
int m_sp_out; // fast serial data out
int m_cnt_out; // fast serial clock out
// interrupts
int m_via0_irq; // VIA #0 interrupt request
int m_via1_irq; // VIA #1 interrupt request
int m_cia_irq; // CIA interrupt request
};
// ======================> c1570_device
class c1570_device : public c1571_device
{
public:
// construction/destruction
c1570_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual const rom_entry *device_rom_region() const;
virtual machine_config_constructor device_mconfig_additions() const;
};
// ======================> c1571cr_device
class c1571cr_device : public c1571_device
{
public:
// construction/destruction
c1571cr_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual const rom_entry *device_rom_region() const;
virtual machine_config_constructor device_mconfig_additions() const;
DECLARE_WRITE8_MEMBER( via0_pa_w );
DECLARE_WRITE8_MEMBER( via0_pb_w );
};
// ======================> mini_chief_device
class mini_chief_device : public c1571_device
{
public:
// construction/destruction
mini_chief_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual const rom_entry *device_rom_region() const;
virtual machine_config_constructor device_mconfig_additions() const;
DECLARE_READ8_MEMBER( cia_pa_r );
DECLARE_WRITE8_MEMBER( cia_pa_w );
DECLARE_WRITE8_MEMBER( cia_pb_w );
};
// device type definition
extern const device_type C1570;
extern const device_type C1571;
extern const device_type C1571CR;
extern const device_type MINI_CHIEF;
#endif
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