1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
// license:BSD-3-Clause
// copyright-holders:Nigel Barnes
/**********************************************************************
Digital Services Ethernet Podule
TODO:
- everything, this is skeleton with ROM.
**********************************************************************/
#include "emu.h"
#include "etherd.h"
namespace {
class arc_etherd_device :
public device_t,
public device_archimedes_podule_interface
{
public:
// construction/destruction
arc_etherd_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
static constexpr feature_type unemulated_features() { return feature::COMMS; }
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
// device_archimedes_podule_interface overrides
virtual void ioc_map(address_map &map) override;
virtual void memc_map(address_map &map) override;
private:
required_memory_region m_podule_rom;
u8 m_rom_page;
};
void arc_etherd_device::ioc_map(address_map &map)
{
map(0x0000, 0x1fff).lr8(NAME([this](offs_t offset) { return m_podule_rom->base()[offset | ((m_rom_page << 11) & 0x1f800)]; })).umask32(0x000000ff);
map(0x0000, 0x0000).lw8(NAME([this](u8 data) { m_rom_page = data; }));
}
void arc_etherd_device::memc_map(address_map &map)
{
}
//-------------------------------------------------
// ROM( etherd )
//-------------------------------------------------
ROM_START( etherd )
ROM_REGION(0x20000, "podule_rom", 0)
ROM_LOAD("dsle3a-2.00.rom", 0x0000, 0x20000, CRC(123a04b9) SHA1(e972c1ab2ccfd20a6e5321549d555f8ae14e12f9))
ROM_END
const tiny_rom_entry *arc_etherd_device::device_rom_region() const
{
return ROM_NAME( etherd );
}
//-------------------------------------------------
// device_add_mconfig - add device configuration
//-------------------------------------------------
void arc_etherd_device::device_add_mconfig(machine_config &config)
{
//SMC91C90(config, "lan", 20_MHz_XTAL);
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// arc_etherd_device - constructor
//-------------------------------------------------
arc_etherd_device::arc_etherd_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: device_t(mconfig, ARC_ETHERD, tag, owner, clock)
, device_archimedes_podule_interface(mconfig, *this)
, m_podule_rom(*this, "podule_rom")
, m_rom_page(0)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void arc_etherd_device::device_start()
{
save_item(NAME(m_rom_page));
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void arc_etherd_device::device_reset()
{
m_rom_page = 0x00;
}
} // anonymous namespace
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE_PRIVATE(ARC_ETHERD, device_archimedes_podule_interface, arc_etherd_device, "arc_etherd", "Digital Services Ethernet Podule")
|