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// license:GPL-2.0+
// copyright-holders:Dirk Best
/***************************************************************************
Nascom NASBUS
77-pin slot
1 0V
2 0V
3 0V
4 0V
5 Clock
6 (spare)
7 (spare)
8 (spare)
9 /RAM DISABLE
10 /RESET SWITCH
11 /NASCOM MEM
12 /NASCOM IO
13 /DBDR
14 /RESET
15 /HALT
16 /BAI
17 /BAO
18 /BUSRQ
19 IEI
20 IEO
21 (reserved for /NMI)
22 /INT
23 /WAIT
24 /RFSH
25 /MI
26 /IORQ
27 /MREQ
28 /WR
29 /RD
30 A0
31 A1
32 A2
33 A3
34 A4
35 A5
36 A6
37 A7
38 A8
39 A9
40 A10
41 A11
42 A12
43 A13
44 A14
45 A15
46 (reserved)
47 (reserved)
48 (reserved)
49 (reserved)
50 D0
51 D1
52 D2
53 D3
54 D4
55 D5
56 D6
57 D7
58 (reserved)
59 (reserved)
60 (reserved)
61 (reserved)
62 (reserved)
63 (reserved)
64 (reserved)
65 (reserved)
66 (unused)
67 (unused)
68 -5V
69 -5V
70 -12V
71 -12V
72 Keyway
73 +12V
74 +12V
75 +5V
76 +5V
77 +5V
78 +5V
***************************************************************************/
#ifndef MAME_BUS_NASBUS_NASBUS_H
#define MAME_BUS_NASBUS_NASBUS_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// forward declaration
class device_nasbus_card_interface;
class nasbus_device;
// ======================> nasbus_slot_device
class nasbus_slot_device : public device_t, public device_single_card_slot_interface<device_nasbus_card_interface>
{
public:
// construction/destruction
template <typename T, typename U>
nasbus_slot_device(machine_config const &mconfig, char const *tag, device_t *owner, T &&bus, U &&opts, char const *dflt)
: nasbus_slot_device(mconfig, tag, owner, (uint32_t)0)
{
option_reset();
opts(*this);
set_default_option(dflt);
set_fixed(false);
set_bus(std::forward<T>(bus));
}
nasbus_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template <typename T> void set_bus(T &&tag) { m_bus.set_tag(std::forward<T>(tag)); }
protected:
nasbus_slot_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_start() override;
private:
required_device<nasbus_device> m_bus;
};
// device type definition
DECLARE_DEVICE_TYPE(NASBUS_SLOT, nasbus_slot_device)
// ======================> nasbus_device
class nasbus_device : public device_t
{
friend class device_nasbus_card_interface;
public:
// construction/destruction
nasbus_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
virtual ~nasbus_device();
auto ram_disable() { return m_ram_disable_handler.bind(); }
void add_card(device_nasbus_card_interface &card);
template <typename T> void set_program_space(T &&tag, int spacenum) { m_program.set_tag(std::forward<T>(tag), spacenum); }
template <typename T> void set_io_space(T &&tag, int spacenum) { m_io.set_tag(std::forward<T>(tag), spacenum); }
// from cards
DECLARE_WRITE_LINE_MEMBER( ram_disable_w );
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
private:
required_address_space m_program;
required_address_space m_io;
simple_list<device_nasbus_card_interface> m_dev;
devcb_write_line m_ram_disable_handler;
};
// device type definition
DECLARE_DEVICE_TYPE(NASBUS, nasbus_device)
// ======================> device_nasbus_interface
class device_nasbus_card_interface : public device_interface
{
template <class ElementType> friend class simple_list;
public:
// construction/destruction
virtual ~device_nasbus_card_interface();
void set_nasbus_device(nasbus_device &nasbus);
device_nasbus_card_interface *next() const { return m_next; }
protected:
device_nasbus_card_interface(const machine_config &mconfig, device_t &device);
virtual void interface_pre_start() override;
DECLARE_WRITE_LINE_MEMBER( ram_disable_w ) { m_nasbus->ram_disable_w(state); }
address_space &program_space() { return *m_nasbus->m_program; }
address_space &io_space() { return *m_nasbus->m_io; }
private:
nasbus_device *m_nasbus;
device_nasbus_card_interface *m_next;
};
// include here so drivers don't need to
#include "cards.h"
#endif // MAME_BUS_NASBUS_NASBUS_H
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