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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore 1551 Single Disk Drive emulation
**********************************************************************/
#ifndef MAME_BUS_PLUS4_C1551_H
#define MAME_BUS_PLUS4_C1551_H
#pragma once
#include "exp.h"
#include "cpu/m6502/m6510t.h"
#include "imagedev/floppy.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_t clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
// optional information overrides
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_add_mconfig(machine_config &config) override;
virtual ioport_constructor device_input_ports() const override;
// device_plus4_expansion_card_interface overrides
virtual uint8_t plus4_cd_r(offs_t offset, uint8_t data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h) override;
virtual void plus4_cd_w(offs_t offset, uint8_t data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h) override;
private:
uint8_t port_r();
void port_w(uint8_t data);
uint8_t tcbm_data_r();
void tcbm_data_w(uint8_t data);
uint8_t tpi0_pc_r();
void tpi0_pc_w(uint8_t data);
uint8_t tpi1_pb_r();
uint8_t tpi1_pc_r();
void tpi1_pc_w(uint8_t data);
uint8_t tpi0_r(offs_t offset);
void tpi0_w(offs_t offset, uint8_t data);
void c1551_mem(address_map &map);
DECLARE_FLOPPY_FORMATS( floppy_formats );
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;
output_finder<2> m_leds;
// TCBM bus
uint8_t 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
DECLARE_DEVICE_TYPE(C1551, c1551_device)
#endif // MAME_BUS_PLUS4_C1551_H
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