summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/hp700.cpp
blob: 7dea387a8ac7fabfa0b0f140e4ae1b119a6ccd3e (plain) (blame)
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
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
// license:BSD-3-Clause
// copyright-holders:
/***********************************************************************************************************************************

Skeleton driver for HP-700 series terminals.

************************************************************************************************************************************/

#include "emu.h"
#include "cpu/nec/nec.h"
#include "machine/mc68681.h"
#include "machine/nvram.h"

class hp700_state : public driver_device
{
public:
	hp700_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag)
		, m_maincpu(*this, "maincpu")
		, m_duart(*this, "duart")
	{ }

	void hp700_92(machine_config &config);
	void hp700_70(machine_config &config);

private:
	void io_map(address_map &map);
	void mem_map(address_map &map);
	void hp700_70_map(address_map &map);

	required_device<cpu_device> m_maincpu;
	required_device<scn2681_device> m_duart;
};

void hp700_state::mem_map(address_map &map)
{
	map(0x00000, 0x1ffff).rom().region("maincpu", 0);
	map(0x20000, 0x2ffff).ram();
	map(0x30000, 0x31fff).ram().share("nvram");
	map(0x34000, 0x34000).nopr();
	map(0x38000, 0x38fff).lrw8(
							   NAME([this] (offs_t offset) {
								   return m_duart->read(offset >> 8);
							   }),
							   NAME([this] (offs_t offset, u8 data) {
								   m_duart->write(offset >> 8, data);
							   }));
	map(0xffff0, 0xfffff).rom().region("maincpu", 0x1fff0);
}

void hp700_state::hp700_70_map(address_map &map)
{
	map(0x00000, 0x3ffff).rom().region("maincpu", 0);
	map(0x60000, 0x6ffff).ram();
	map(0x70000, 0x71fff).ram().share("nvram");
	map(0x780f0, 0x780ff).rw(m_duart, FUNC(scn2681_device::read), FUNC(scn2681_device::write));
	map(0xffff0, 0xfffff).rom().region("maincpu", 0x1fff0);
}

void hp700_state::io_map(address_map &map)
{
	map(0x00f2, 0x00f2).nopw();
}

static INPUT_PORTS_START(hp700_92)
INPUT_PORTS_END

void hp700_state::hp700_92(machine_config &config)
{
	V20(config, m_maincpu, 29.4912_MHz_XTAL / 3); // divider not verified
	m_maincpu->set_addrmap(AS_PROGRAM, &hp700_state::mem_map);
	m_maincpu->set_addrmap(AS_IO, &hp700_state::io_map);

	NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);

	SCN2681(config, m_duart, 29.4912_MHz_XTAL / 8); // divider not verified
	m_duart->irq_cb().set_inputline(m_maincpu, INPUT_LINE_NMI);
}

void hp700_state::hp700_70(machine_config &config)
{
	V20(config, m_maincpu, 39.3216_MHz_XTAL / 4); // divider not verified (XTAL value not readable, assumed to be same as HP 700/60)
	m_maincpu->set_addrmap(AS_PROGRAM, &hp700_state::hp700_70_map);

	NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);

	SCN2681(config, m_duart, 39.3216_MHz_XTAL / 8); // divider not verified; device type probably wrong (48-pin DIP labeled 1LVS-0001)
	m_duart->irq_cb().set_inputline(m_maincpu, INPUT_LINE_NMI);
}


/**************************************************************************************************************

Hewlett-Packard HP-700/92.
Chips: TC5564APL-15, proprietary square chip, D70108C-10 (V20), SCN2681, Beeper
Crystals: 29.4912

***************************************************************************************************************/

ROM_START(hp700_92)
	ROM_REGION(0x20000, "maincpu", 0)
	ROM_LOAD("5181-8672.u803", 0x00000, 0x20000, CRC(21440d2f) SHA1(69a3de064ae2b18adc46c2fdd0bf69620375efe7))
ROM_END

/**************************************************************************************************************

HP 700/70 Terminal with AlphaWindows capability

Board D-3416 C1093-60001
-------------
2 EPROMs
EPROM Type: M27C1001 (128KB - 1 MBit)
-------------

-------------
1LV5-0001
93491
SINGAPORE
-------------

-------------
NEC
9401Y5 V20
D70108C-10(C)'84 NEC
-------------

-------------
HP ASIC 1MH1-0202
94281 Singapore
HJP02
-------------

***************************************************************************************************************/

ROM_START(hp700_70)
	ROM_REGION(0x40000, "maincpu", 0) // "© HP 1994 REV: 3440"
	ROM_LOAD("c1093-80008.u802", 0x00000, 0x20000, CRC(25c527a6) SHA1(97e82774d25eab6fd4cc6ff7a5a473341281abb1)) // "CKSM 96A5"
	ROM_LOAD("c1093-80009.u817", 0x20000, 0x20000, CRC(369e6855) SHA1(938ac9cd120d0aa7c76011d1a5e91244a142b397)) // "CKSM 7B6B"
ROM_END

COMP(1987, hp700_92, 0, 0, hp700_92, hp700_92, hp700_state, empty_init, "Hewlett-Packard", "HP 700/92 Display Terminal", MACHINE_IS_SKELETON)
COMP(1994, hp700_70, 0, 0, hp700_70, hp700_92, hp700_state, empty_init, "Hewlett-Packard", "HP 700/70 Windowing Terminal", MACHINE_IS_SKELETON)