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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore 1551 Single Disk Drive emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************/
#pragma once
#ifndef __C1551__
#define __C1551__
#include "emu.h"
#include "exp.h"
#include "cpu/m6502/m6510t.h"
#include "machine/64h156.h"
#include "machine/6525tpi.h"
#include "machine/pla.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> c1551_device
class c1551_device : public device_t,
public device_plus4_expansion_card_interface
{
public:
// construction/destruction
c1551_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_READ8_MEMBER( port_r );
DECLARE_WRITE8_MEMBER( port_w );
DECLARE_READ8_MEMBER( tcbm_data_r );
DECLARE_WRITE8_MEMBER( tcbm_data_w );
DECLARE_READ8_MEMBER( tpi0_r );
DECLARE_WRITE8_MEMBER( tpi0_w );
DECLARE_READ8_MEMBER( yb_r );
DECLARE_WRITE8_MEMBER( yb_w );
DECLARE_READ8_MEMBER( tpi0_pc_r );
DECLARE_WRITE8_MEMBER( tpi0_pc_w );
DECLARE_READ8_MEMBER( tpi1_pa_r );
DECLARE_WRITE8_MEMBER( tpi1_pa_w );
DECLARE_READ8_MEMBER( tpi1_pb_r );
DECLARE_READ8_MEMBER( tpi1_pc_r );
DECLARE_WRITE8_MEMBER( tpi1_pc_w );
DECLARE_FLOPPY_FORMATS( floppy_formats );
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
// device_plus4_expansion_card_interface overrides
virtual UINT8 plus4_cd_r(address_space &space, offs_t offset, UINT8 data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h);
virtual void plus4_cd_w(address_space &space, offs_t offset, UINT8 data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h);
private:
enum
{
LED_POWER = 0,
LED_ACT
};
bool tpi1_selected(offs_t offset);
required_device<m6510t_device> m_maincpu;
required_device<tpi6525_device> m_tpi0;
required_device<tpi6525_device> m_tpi1;
required_device<c64h156_device> m_ga;
required_device<pls100_device> m_pla;
required_device<floppy_image_device> m_floppy;
required_device<plus4_expansion_slot_device> m_exp;
required_ioport m_jp1;
// TCBM bus
UINT8 m_tcbm_data; // data
int m_status; // status
int m_dav; // data valid
int m_ack; // acknowledge
int m_dev; // device number
// timers
emu_timer *m_irq_timer;
};
// device type definition
extern const device_type C1551;
#endif
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