summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/att630.cpp
blob: 96e0626ea4a2588438f743571c187f6356f636df (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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
// license:BSD-3-Clause
// copyright-holders:
/***********************************************************************************************************************************

Skeleton driver for AT&T 630 MTG terminal.

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

#include "emu.h"
#include "cpu/m68000/m68000.h"
#include "machine/mc68681.h"
#include "machine/nvram.h"
#include "screen.h"

class att630_state : public driver_device
{
public:
	att630_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag)
		, m_maincpu(*this, "maincpu")
		, m_vram(*this, "vram")
	{ }

	void att630(machine_config &config);
	void att730x(machine_config &config);

protected:
	virtual void machine_start() override;

private:
	u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);

	u8 bram_r(offs_t offset);
	void bram_w(offs_t offset, u8 data);

	void att630_map(address_map &map);
	void att730_map(address_map &map);

	required_device<m68000_device> m_maincpu;
	required_shared_ptr<u16> m_vram;

	std::unique_ptr<u8[]> m_bram_data;
};

void att630_state::machine_start()
{
	m_bram_data = std::make_unique<u8[]>(0x2000);
	subdevice<nvram_device>("bram")->set_base(m_bram_data.get(), 0x2000);

	save_pointer(NAME(m_bram_data), 0x2000);
}

u32 att630_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
	for (int y = 0; y < 1024; y++)
		for (int x = 0; x < 1024; x++)
			bitmap.pix32(y, x) = BIT(m_vram[y * (1024 / 16) + x / 16], 15 - (x % 16)) ? rgb_t::white() : rgb_t::black();

	return 0;
}

u8 att630_state::bram_r(offs_t offset)
{
	return m_bram_data[offset];
}

void att630_state::bram_w(offs_t offset, u8 data)
{
	m_bram_data[offset] = data;
}

void att630_state::att630_map(address_map &map)
{
	map(0x000000, 0x03ffff).rom().region("maincpu", 0);
	map(0x040000, 0x0fffff).noprw(); // additional space for rom
	map(0x100000, 0x1fffff).noprw(); // cartridge space
	map(0x200000, 0x20001f).rw("duart1", FUNC(scn2681_device::read), FUNC(scn2681_device::write)).umask16(0x00ff);
	map(0x200020, 0x20003f).rw("duart2", FUNC(scn2681_device::read), FUNC(scn2681_device::write)).umask16(0x00ff);
	map(0x400000, 0x6fffff).noprw(); // expansion i/o card
//  map(0x700000, 0x75ffff).noprw(); // video controller
	map(0x760000, 0x77ffff).ram().share("vram");
	map(0x780000, 0x7fffff).ram(); // program ram
	map(0xe00000, 0xe03fff).mirror(0x1fc000).rw(FUNC(att630_state::bram_r), FUNC(att630_state::bram_w)).umask16(0x00ff);
}

void att630_state::att730_map(address_map &map)
{
	att630_map(map);
	map(0x040000, 0x05ffff).rom().region("maincpu", 0x40000);
	map(0x100000, 0x15ffff).rom().region("cart", 0);
	map(0x800000, 0x83ffff).ram(); // expansion RAM
	map(0xde0000, 0xdfffff).rom().region("starlan", 0);
}

static INPUT_PORTS_START( att630 )
INPUT_PORTS_END

void att630_state::att630(machine_config &config)
{
	M68000(config, m_maincpu, 40_MHz_XTAL / 4); // clock not confirmed
	m_maincpu->set_addrmap(AS_PROGRAM, &att630_state::att630_map);
	m_maincpu->set_cpu_space(AS_PROGRAM); // vectors are in BRAM

	NVRAM(config, "bram", nvram_device::DEFAULT_ALL_0); // 5264 + battery

	screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
	screen.set_raw(87.18336_MHz_XTAL, 1376, 0, 1024, 1056, 0, 1024);
	screen.set_color(rgb_t::amber());
	screen.set_screen_update(FUNC(att630_state::screen_update));

	scn2681_device &duart1(SCN2681(config, "duart1", 3.6864_MHz_XTAL));
	duart1.irq_cb().set_inputline(m_maincpu, M68K_IRQ_3);

	scn2681_device &duart2(SCN2681(config, "duart2", 3.6864_MHz_XTAL));
	duart2.irq_cb().set_inputline(m_maincpu, M68K_IRQ_2);
}

void att630_state::att730x(machine_config &config)
{
	att630(config);
	m_maincpu->set_addrmap(AS_PROGRAM, &att630_state::att730_map);
}


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

AT&T 630 MTG.
Chips: 2x SCN2681A, AT&T 492F proprietory, blank chip, MC68000P10, MB113F316 (square), MB113F316 (DIL), PAL16R4ACN
Crystals: 40MHz, 87.18336, 3.6864? (hard to read)

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

ROM_START( att630 )
	ROM_REGION(0x40000, "maincpu", 0)
	ROM_LOAD16_BYTE( "460621-1.bin", 0x00000, 0x10000, CRC(136749cd) SHA1(15378c292ddc7384cc69a35de55b69257a9f2a1c) )
	ROM_LOAD16_BYTE( "460620-1.bin", 0x00001, 0x10000, CRC(27ab77f0) SHA1(5ff1d9ee5a69dee308d62c447ee67e1888afab0e) )
	ROM_LOAD16_BYTE( "460623-1.bin", 0x20000, 0x10000, CRC(aeae12fb) SHA1(fa3ce26e4622875aa1dea7cf1bd1df237010ff2b) )
	ROM_LOAD16_BYTE( "460622-1.bin", 0x20001, 0x10000, CRC(c108c1e0) SHA1(ef01349e890b8a4117c01e78d1c23fbd113ba58f) )
ROM_END

ROM_START( att730x )
	ROM_REGION(0x60000, "maincpu", 0) // D27512-200V10 EPROMs "© AT&T 1990"
	ROM_LOAD16_BYTE( "106219637_mln3.bin", 0x00000, 0x10000, CRC(8bb2f5f9) SHA1(e7a50b8da4dde5479c8184f89f59daf511989377) )
	ROM_LOAD16_BYTE( "106219645_mln2.bin", 0x00001, 0x10000, CRC(5663da5b) SHA1(a572381a4ca73c3ddac2eff461603c8b46949687) )
	ROM_LOAD16_BYTE( "106219652_mlq3.bin", 0x20000, 0x10000, CRC(e0f88160) SHA1(2def2bb1ad11eb976bfbab25ffa536fd14eb75ca) )
	ROM_LOAD16_BYTE( "106219660_mlq2.bin", 0x20001, 0x10000, CRC(66cdd13c) SHA1(902f653ef88c4f4d93701f0b578a45618f6caa63) )
	ROM_LOAD16_BYTE( "106219678_mls3.bin", 0x40000, 0x10000, CRC(675b8d6f) SHA1(748f42021ff9655dbc4670ac412444171e7c0e95) )
	ROM_LOAD16_BYTE( "106219686_mls2.bin", 0x40001, 0x10000, CRC(87155cfd) SHA1(2e7a2a654193979330a4cadbf4a8f00617a73c05) )

	// 730X CARTRIDGE PC Code 33503 © 1989 AT&T ISSUE 1 MADE IN USA
	ROM_REGION16_BE(0x60000, "cart", 0) // D27512-200V05 EPROMs "© AT&T-1989"
	ROM_LOAD16_BYTE( "846481877.b1", 0x00000, 0x10000, CRC(5797e737) SHA1(0406add8373ab1b8c00511fd038b6548fa431d0a) )
	ROM_LOAD16_BYTE( "846481828.a1", 0x00001, 0x10000, CRC(d58e9ad6) SHA1(787a5011778be470b01036d2053945bb330da948) )
	ROM_LOAD16_BYTE( "846481844.b2", 0x20000, 0x10000, CRC(4a426790) SHA1(33209daa61255fe9b7f010e337f8de1e9446ee2b) )
	ROM_LOAD16_BYTE( "846481851.a2", 0x20001, 0x10000, CRC(57e0d7bd) SHA1(7b664c26ed9e9496d229a9907c9340e298934aba) )
	ROM_LOAD16_BYTE( "846481885.b3", 0x40000, 0x10000, CRC(eb4b0c4c) SHA1(0a520485be72992a45d5113ac053db7234adf609) )
	ROM_LOAD16_BYTE( "846481836.a3", 0x40001, 0x10000, CRC(8becf605) SHA1(8b5820d8b931a235e0c0a375973c461e14d55fed) )

	ROM_REGION16_BE(0x20000, "starlan", 0) // D27512-200V05 EPROMs "© AT&T 1990"
	ROM_LOAD16_BYTE( "846541910_abf1_001.d10", 0x00000, 0x10000, CRC(3fce193e) SHA1(e5f9704e9d06f97700ccf6f88fc935efbcd0cd4e) )
	ROM_LOAD16_BYTE( "846541902_6d82_000.b10", 0x00001, 0x10000, CRC(dcf9165c) SHA1(3f264193228bbf935a2699e64bbff08ceb1c2164) )
ROM_END

COMP( 1986, att630, 0, 0, att630, att630, att630_state, empty_init, "AT&T", "630 MTG", MACHINE_IS_SKELETON )
COMP( 1990, att730x, 0, 0, att730x, att630, att630_state, empty_init, "AT&T", "730X", MACHINE_IS_SKELETON )