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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
International Memories Incorporated IMI 7000 Series bus emulation
**********************************************************************
GND 1 2 GND
SPARE 3 4 SPARE
-SEL UNIT ADDR 3 5 6 -SEL UNIT ADDR 2
+R/W DATA 7 8 -R/W DATA
-SEL UNIT ADDR 1 9 10 -SEL UNIT ADDR 0
+SYS CLOCK 11 12 -SYS CLOCK
GND 13 14 GND
-SECTOR 15 16 -INDEX
-SEEK COMPLETE 17 18 -FAULT
-CMD STROBE 19 20 -CMD R/W
-CMD SELECT 0 21 22 -CMD SELECT 1
SPARE 23 24 SPARE
-CMD ACK 25 26 SPARE
-CMD BUS 6 27 28 -CMD BUS 7
-CMD BUS 4 29 30 -CMD BUS 5
-CMD BUS 2 31 32 -CMD BUS 3
-CMD BUS 0 33 34 -CMD BUS 1
**********************************************************************/
#pragma once
#ifndef __IMI7000_BUS__
#define __IMI7000_BUS__
//**************************************************************************
// CONSTANTS
//**************************************************************************
#define IMI7000_BUS_TAG "imi7000"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_IMI7000_BUS_ADD(_def_slot1, _def_slot2, _def_slot3, _def_slot4) \
MCFG_DEVICE_ADD(IMI7000_BUS_TAG, IMI7000_BUS, 0) \
MCFG_DEVICE_ADD(IMI7000_BUS_TAG":0", IMI7000_SLOT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(imi7000_devices, _def_slot1, false) \
MCFG_DEVICE_ADD(IMI7000_BUS_TAG":1", IMI7000_SLOT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(imi7000_devices, _def_slot2, false) \
MCFG_DEVICE_ADD(IMI7000_BUS_TAG":2", IMI7000_SLOT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(imi7000_devices, _def_slot3, false) \
MCFG_DEVICE_ADD(IMI7000_BUS_TAG":3", IMI7000_SLOT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(imi7000_devices, _def_slot4, false)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class imi7000_slot_device;
class device_imi7000_interface;
// ======================> imi7000_bus_device
class imi7000_bus_device : public device_t
{
public:
// construction/destruction
imi7000_bus_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_start() override;
imi7000_slot_device *m_unit[4];
};
// ======================> imi7000_slot_device
class imi7000_slot_device : public device_t,
public device_slot_interface
{
public:
// construction/destruction
imi7000_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_start() override;
device_imi7000_interface *m_card;
};
// ======================> device_imi7000_interface
class device_imi7000_interface : public device_slot_card_interface
{
friend class imi7000_slot_device;
public:
// construction/destruction
device_imi7000_interface(const machine_config &mconfig, device_t &device);
virtual ~device_imi7000_interface() { }
protected:
imi7000_slot_device *m_slot;
};
// device type definition
extern const device_type IMI7000_BUS;
extern const device_type IMI7000_SLOT;
// slot interface
SLOT_INTERFACE_EXTERN( imi7000_devices );
#endif
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