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// license:BSD-3-Clause
// copyright-holders: F. Ulivi
/*********************************************************************
98034.h
98034 module (HPIB interface)
*********************************************************************/
#ifndef MAME_BUS_HP9845_IO_98034_H
#define MAME_BUS_HP9845_IO_98034_H
#pragma once
#include "hp9845_io.h"
#include "cpu/nanoprocessor/nanoprocessor.h"
#include "bus/ieee488/ieee488.h"
class hp98034_io_card_device : public device_t, public device_hp9845_io_interface
{
public:
// construction/destruction
hp98034_io_card_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual ~hp98034_io_card_device();
protected:
virtual void device_start() override;
virtual void device_reset() override;
// device-level overrides
virtual ioport_constructor device_input_ports() const override;
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_add_mconfig(machine_config &config) override;
virtual uint16_t reg_r(address_space &space, offs_t offset) override;
virtual void reg_w(address_space &space, offs_t offset, uint16_t data) override;
private:
void dc_w(uint8_t data);
uint8_t dc_r();
uint8_t int_ack_r();
void hpib_data_w(uint8_t data);
void hpib_ctrl_w(uint8_t data);
uint8_t hpib_ctrl_r();
uint8_t hpib_data_r();
uint8_t idr_r();
void odr_w(uint8_t data);
uint8_t mode_reg_r();
void mode_reg_clear_w(uint8_t data);
uint8_t switch_r();
void np_io_map(address_map &map);
void np_program_map(address_map &map);
DECLARE_WRITE_LINE_MEMBER(ieee488_ctrl_w);
required_device<hp_nanoprocessor_device> m_cpu;
required_ioport m_sw1;
required_device<ieee488_device> m_ieee488;
// DC lines
uint8_t m_dc;
// Interface state
uint8_t m_idr; // Input Data Register
uint8_t m_odr; // Output Data Register
bool m_force_flg;
uint8_t m_mode_reg;
bool m_flg;
// 488 bus state
bool m_clr_hpib;
uint8_t m_ctrl_out;
uint8_t m_data_out;
void update_dc();
bool update_flg();
void update_np_irq();
void update_data_out();
void update_ctrl_out();
void update_clr_hpib();
};
// device type definition
DECLARE_DEVICE_TYPE(HP98034_IO_CARD, hp98034_io_card_device)
#endif // MAME_BUS_HP9845_IO_98034_H
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