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// license:BSD-3-Clause
// copyright-holders:Nigel Barnes
/**********************************************************************
Cumana 68008 2nd processor
http://chrisacorns.computinghistory.org.uk/8bit_Upgrades/Cumana_680082ndProcessor.html
**********************************************************************/
#ifndef MAME_BUS_BBC_INTERNAL_CUMANA68K_H
#define MAME_BUS_BBC_INTERNAL_CUMANA68K_H
#include "internal.h"
#include "cpu/m68000/m68000.h"
#include "machine/6821pia.h"
#include "machine/input_merger.h"
#include "machine/mc146818.h"
#include "imagedev/floppy.h"
#include "machine/wd_fdc.h"
#include "formats/os9_dsk.h"
#include "bus/scsi/scsi.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class bbc_cumana68k_device :
public device_t,
public device_bbc_internal_interface
{
public:
// construction/destruction
bbc_cumana68k_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
DECLARE_WRITE8_MEMBER(pia_rtc_pb_w);
DECLARE_WRITE8_MEMBER(pia_sasi_pb_w);
DECLARE_READ8_MEMBER(mem6502_r);
DECLARE_WRITE8_MEMBER(mem6502_w);
DECLARE_FLOPPY_FORMATS(floppy_formats);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset_after_children() override;
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
private:
DECLARE_WRITE_LINE_MEMBER(reset68008_w);
DECLARE_WRITE_LINE_MEMBER(rtc_ce_w);
required_device<m68000_base_device> m_m68008;
required_device<pia6821_device> m_pia_sasi;
required_device<pia6821_device> m_pia_rtc;
required_device<input_merger_device> m_irqs;
required_device<mc146818_device> m_rtc;
required_device<wd2797_device> m_fdc;
required_device_array<floppy_connector, 4> m_floppy;
required_device<scsi_port_device> m_sasibus;
required_device<output_latch_device> m_sasi_data_out;
required_device<input_buffer_device> m_sasi_data_in;
void cumana68k_mem(address_map &map);
void fsel_w(offs_t offset, uint8_t data);
int m_masknmi;
void mc146818_set();
int m_mc146818_as;
int m_mc146818_ds;
int m_mc146818_rw;
int m_mc146818_ce;
};
// device type definition
DECLARE_DEVICE_TYPE(BBC_CUMANA68K, bbc_cumana68k_device)
#endif // MAME_BUS_BBC_INTERNAL_CUMANA68K_H
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