mirror of
https://github.com/holub/mame
synced 2025-05-23 22:20:01 +03:00
90 lines
2.4 KiB
C++
90 lines
2.4 KiB
C++
/**********************************************************************
|
|
|
|
Commodore 2031 Single Disk Drive emulation
|
|
|
|
Copyright MESS Team.
|
|
Visit http://mamedev.org for licensing and usage restrictions.
|
|
|
|
**********************************************************************/
|
|
|
|
#pragma once
|
|
|
|
#ifndef __C2031__
|
|
#define __C2031__
|
|
|
|
|
|
#include "emu.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/ieee488.h"
|
|
|
|
|
|
|
|
//**************************************************************************
|
|
// TYPE DEFINITIONS
|
|
//**************************************************************************
|
|
|
|
// ======================> c2031_device
|
|
|
|
class c2031_device : public device_t,
|
|
public device_ieee488_interface
|
|
{
|
|
public:
|
|
// construction/destruction
|
|
c2031_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
|
|
|
|
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( via0_ca1_r );
|
|
DECLARE_READ_LINE_MEMBER( via0_ca2_r );
|
|
DECLARE_WRITE_LINE_MEMBER( via1_irq_w );
|
|
DECLARE_READ8_MEMBER( via1_pb_r );
|
|
DECLARE_WRITE8_MEMBER( via1_pb_w );
|
|
DECLARE_WRITE_LINE_MEMBER( byte_w );
|
|
|
|
// optional information overrides
|
|
virtual const rom_entry *device_rom_region() const;
|
|
virtual machine_config_constructor device_mconfig_additions() const;
|
|
|
|
protected:
|
|
// device-level overrides
|
|
virtual void device_start();
|
|
virtual void device_reset();
|
|
|
|
// device_ieee488_interface overrides
|
|
virtual void ieee488_atn(int state);
|
|
virtual void ieee488_ifc(int state);
|
|
|
|
inline int get_device_number();
|
|
|
|
required_device<cpu_device> m_maincpu;
|
|
required_device<via6522_device> m_via0;
|
|
required_device<via6522_device> m_via1;
|
|
required_device<c64h156_device> m_ga;
|
|
required_device<legacy_floppy_image_device> m_image;
|
|
|
|
// IEEE-488 bus
|
|
int m_nrfd_out; // not ready for data
|
|
int m_ndac_out; // not data accepted
|
|
int m_atna; // attention acknowledge
|
|
|
|
// interrupts
|
|
int m_via0_irq; // VIA #0 interrupt request
|
|
int m_via1_irq; // VIA #1 interrupt request
|
|
};
|
|
|
|
|
|
// device type definition
|
|
extern const device_type C2031;
|
|
|
|
|
|
|
|
#endif
|