summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/tmc600.cpp
blob: 26d727321e76e1b9b1fa8dcc5ae389a916b2efea (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
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/*

Telmac TMC-600

PCB Layout
----------

HP14782-1

            CN2                    CN3
        |---------|     |------------------------|
|-------|---------|-----|------------------------|------------------------------------------|
|  CN1                                                  CN4 SW1       CN5 CN6 P1 SW2 CN7    |
|         |-------|                                4049         T3                          |
| T1 K1   |CDP1852|         4050  4050  4050            40107 T2         C1  C2 8.867238MHz |
|         |-------|         |-------|                                     5.6260MHz T4      |
| MC1374                    |CDP1852|                               ROM5    |---------|     |
|                           |-------|                                       | CDP1870 |     |
|    K2                                                             ROM4    |---------|     |
|                       |-------------|       4050   5114   5114                            |
|           4013        |   CDP1802   |       4050   5114   5114    ROM3    4030  ROM6  4060|
|           4013 3.57MHz|-------------|       4050   5114   5114                            |
|           4081  40106                       4051   5114   5114    ROM2    4076  5114  4011|
|                                             4556   5114   5114          CDP1856 5114      |
|                   |-------|                        5114   5114    ROM1  CDP1856 5114  4076|
|           LS1     |CDP1852| CDP1853       CDP1856  5114   5114                            |
|                   |-------|               CDP1856  5114   5114    ROM0    |---------| 4011|
|                                                                           | CDP1869 |     |
|   7805            4051      4051                                          |---------|     |
|                                                                                           |
|                     |--CN8--|                                                             |
|-------------------------------------------------------------------------------------------|

Notes:
    All IC's shown. TMCP-300 and TMC-700 expansions have been installed.

    ROM0-5  - Toshiba TMM2732DI 4Kx8 EPROM
    ROM6    - Hitachi HN462732G 4Kx8 EPROM
    5114    - RCA MWS5114E1 1024-Word x 4-Bit LSI Static RAM
    MC1374  - Motorola MC1374P TV Modulator
    CDP1802 - RCA CDP1802BE CMOS 8-Bit Microprocessor running at 3.57MHz
    CDP1852 - RCA CDP1852CE Byte-Wide Input/Output Port
    CDP1853 - RCA CDP1853CE N-Bit 1 of 8 Decoder
    CDP1856 - RCA CDP1856CE 4-Bit Memory Buffer
    CDP1869 - RCA CDP1869CE Video Interface System (VIS) Address and Sound Generator
    CDP1870 - RCA CDP1870CE Video Interface System (VIS) Color Video (DOT XTAL at 5.6260MHz, CHROM XTAL at 8.867238MHz)
    CN1     - RF connector [TMC-700]
    CN2     - 10x2 pin printer connector [TMC-700]
    CN3     - 32x3 pin EURO connector
    CN4     - DIN5D tape connector
                1   input (500 mV / 47 Kohm)
                2   GND
                3   output (580 mV / 47 Kohm)
                4   input (500 mV / 47 Kohm)
                5   output (580 mV / 47 Kohm)
    CN5     - DIN5X video connector
                1   GND
                2   GND
                3   composite video output (75 ohm)
                4   GND
                5   composite video output (75 ohm)
    CN6     - DIN2 power connector
                1   input 8..12V DC..400Hz 300mA
                2   GND
    CN7     - DIN5D audio connector [TMCP-300]
                1   N/C
                2   GND
                3   mono audio output
                4   N/C
                5   mono audio output
    CN8     - 10x2 pin keyboard connector
    SW1     - RUN/STOP switch (left=run, right=stop)
    SW2     - internal speaker/external audio switch [TMCP-300]
    P1      - color phase lock adjustment potentiometer
    C1      - dot oscillator adjustment variable capacitor
    C2      - chroma oscillator adjustment variable capacitor
    T1      - RF signal strength adjustment potentiometer [TMC-700]
    T2      - tape recording level adjustment potentiometer (0.57 V p-p)
    T3      - video output level adjustment potentiometer (1 V p-p)
    T4      - video synchronization pulse adjustment potentiometer
    K1      - RF signal quality adjustment variable inductor [TMC-700]
    K2      - RF channel adjustment variable inductor (VHF I) [TMC-700]
    LS1     - loudspeaker

*/

/*

    TODO

    - connect expansion bus

*/

#include "emu.h"
#include "includes/tmc600.h"

uint8_t tmc600_state::rtc_r()
{
	m_rtc_int = m_vismac_reg_latch >> 3;

	return 0;
}

void tmc600_state::printer_w(uint8_t data)
{
	m_centronics->write_data0(BIT(data, 0));
	m_centronics->write_data1(BIT(data, 1));
	m_centronics->write_data2(BIT(data, 2));
	m_centronics->write_data3(BIT(data, 3));
	m_centronics->write_data4(BIT(data, 4));
	m_centronics->write_data5(BIT(data, 5));
	m_centronics->write_data6(BIT(data, 6));
	m_centronics->write_data7(BIT(data, 7));

	m_centronics->write_strobe(0);
	m_centronics->write_strobe(1);
}

/* Memory Maps */

void tmc600_state::tmc600_map(address_map &map)
{
	map(0x0000, 0x5fff).rom();
	map(0x6000, 0x7fff).ram();
	map(0xf400, 0xf7ff).m(m_vis, FUNC(cdp1869_device::char_map));
	map(0xf800, 0xffff).m(m_vis, FUNC(cdp1869_device::page_map));
}

void tmc600_state::tmc600_io_map(address_map &map)
{
	map(0x03, 0x03).w(m_bwio, FUNC(cdp1852_device::write));
	map(0x04, 0x04).w(CDP1852_TMC700_TAG, FUNC(cdp1852_device::write));
	map(0x05, 0x05).rw(FUNC(tmc600_state::rtc_r), FUNC(tmc600_state::vismac_data_w));
//  map(0x06, 0x06).w(FUNC(tmc600_state::floppy_w);
	map(0x07, 0x07).w(FUNC(tmc600_state::vismac_register_w));
}

/* Input Ports */

static INPUT_PORTS_START( tmc600 )
	PORT_START("Y0")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CODE(KEYCODE_0_PAD) PORT_CHAR('0')
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR('1') PORT_CHAR('!')
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD) PORT_CHAR('2') PORT_CHAR('\"')
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR('3') PORT_CHAR('#')
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_CHAR('4') PORT_CHAR('$')
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_CHAR('5') PORT_CHAR('%')
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_CHAR('6') PORT_CHAR('&')
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_7_PAD) PORT_CHAR('7') PORT_CHAR('/')

	PORT_START("Y1")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_8_PAD) PORT_CHAR('8') PORT_CHAR('(')
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR('9') PORT_CHAR(')')
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(':') PORT_CHAR('*')
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(';') PORT_CHAR('+')
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')

	PORT_START("Y2")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('@') PORT_CHAR('\\')
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('A')
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('B')
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('C')
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('D')
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('E')
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('F')
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('G')

	PORT_START("Y3")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('H')
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('I')
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('J')
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('K')
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('L')
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('M')
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('N')
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('O')

	PORT_START("Y4")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('P')
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('R')
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('S')
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('T')
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('U')
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('V')
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('W')

	PORT_START("Y5")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('X')
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("\xC3\x85") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR(0x00C5)
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("\xC3\x84") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(0x00C4)
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("\xC3\x96") PORT_CODE(KEYCODE_COLON) PORT_CHAR(0x00D6)
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('^') PORT_CHAR('~')
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BREAK") PORT_CODE(KEYCODE_END) PORT_CHAR(UCHAR_MAMEKEY(END))

	PORT_START("Y6")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("DEL") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("E2") PORT_CODE(KEYCODE_RALT) PORT_CHAR(UCHAR_MAMEKEY(RALT))
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CTRL1") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL))
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CTRL2") PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_MAMEKEY(RCONTROL))
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("E1") PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_MAMEKEY(LALT))
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)

	PORT_START("Y7")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SHIFT LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK))
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("(unknown)") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1))
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("LINE FEED") PORT_CODE(KEYCODE_HOME) PORT_CHAR(UCHAR_MAMEKEY(HOME)) PORT_CHAR(10)
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(13)
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_DOWN) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))

	PORT_START("RUN")
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Run/Stop") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_TOGGLE PORT_WRITE_LINE_DEVICE_MEMBER(CDP1802_TAG, cosmac_device, clear_w)
INPUT_PORTS_END

/* CDP1802 Interface */

READ_LINE_MEMBER( tmc600_state::ef2_r )
{
	return m_cassette->input() < 0;
}

READ_LINE_MEMBER( tmc600_state::ef3_r )
{
	return !BIT(m_key_row[(m_out3 >> 3) & 0x07]->read(), m_out3 & 0x07);
}

WRITE_LINE_MEMBER( tmc600_state::q_w )
{
	m_cassette->output(state ? +1.0 : -1.0);
}

void tmc600_state::sc_w(uint8_t data)
{
	if (data == COSMAC_STATE_CODE_S3_INTERRUPT) {
		m_maincpu->int_w(CLEAR_LINE);
	}
}

void tmc600_state::out3_w(uint8_t data)
{
	m_out3 = data;
}

/* Machine Drivers */

void tmc600_state::tmc600(machine_config &config)
{
	// CPU
	cdp1802_device &cpu(CDP1802(config, CDP1802_TAG, 3.57_MHz_XTAL));
	cpu.set_addrmap(AS_PROGRAM, &tmc600_state::tmc600_map);
	cpu.set_addrmap(AS_IO, &tmc600_state::tmc600_io_map);
	cpu.wait_cb().set_constant(1);
	cpu.ef2_cb().set(FUNC(tmc600_state::ef2_r));
	cpu.ef3_cb().set(FUNC(tmc600_state::ef3_r));
	cpu.q_cb().set(FUNC(tmc600_state::q_w));
	cpu.sc_cb().set(FUNC(tmc600_state::sc_w));
	cpu.tpb_cb().set(CDP1852_KB_TAG, FUNC(cdp1852_device::clock_w));
	cpu.tpb_cb().append(CDP1852_TMC700_TAG, FUNC(cdp1852_device::clock_w));

	// sound and video hardware
	tmc600_video(config);

	// keyboard output latch
	CDP1852(config, m_bwio); // clock is CDP1802 TPB
	m_bwio->mode_cb().set_constant(1);
	m_bwio->do_cb().set(FUNC(tmc600_state::out3_w));

#if 0
	// address bus demux for expansion bus
	cdp1852_device &demux(CDP1852(config, CDP1852_BUS_TAG)); // clock is expansion bus TPA
	demux.mode_cb().set_constant(0);
#endif

	// printer output latch
	cdp1852_device &prtout(CDP1852(config, CDP1852_TMC700_TAG)); // clock is CDP1802 TPB
	prtout.mode_cb().set_constant(1);
	prtout.do_cb().set(FUNC(tmc600_state::printer_w));

	// printer connector
	CENTRONICS(config, m_centronics, centronics_devices, "printer");
	m_centronics->busy_handler().set(CDP1802_TAG, FUNC(cosmac_device::ef4_w)).exor(1);

	// cassette
	CASSETTE(config, m_cassette);
	m_cassette->set_default_state(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_ENABLED);

	// expansion bus connector
	TMC600_EUROBUS_SLOT(config, m_bus, tmc600_eurobus_cards, nullptr);

	// internal RAM
	RAM(config, RAM_TAG).set_default_size("8K");
}

/* ROMs */

#if 0
ROM_START( tmc600s1 )
	ROM_REGION( 0x6000, CDP1802_TAG, 0 )
	ROM_LOAD( "sb20",       0x0000, 0x1000, NO_DUMP )
	ROM_LOAD( "sb21",       0x1000, 0x1000, NO_DUMP )
	ROM_LOAD( "sb22",       0x2000, 0x1000, NO_DUMP )
	ROM_LOAD( "sb23",       0x3000, 0x1000, NO_DUMP )
	ROM_SYSTEM_BIOS( 0, "sb040282", "SB040282" )
	ROMX_LOAD( "190482",    0x4000, 0x1000, NO_DUMP, ROM_BIOS(0) )
	ROM_SYSTEM_BIOS( 1, "sbdos", "SBDOS" )
	ROMX_LOAD( "190482_",   0x4000, 0x1000, NO_DUMP, ROM_BIOS(1) )
	ROMX_LOAD( "190482_v",  0x5000, 0x1000, NO_DUMP, ROM_BIOS(1) )

	ROM_REGION( 0x1000, "chargen", 0 )
	ROM_LOAD( "chargen",    0x0000, 0x1000, CRC(93f92cbf) SHA1(371156fb38fa5319c6fde537ccf14eed94e7adfb) )
ROM_END
#endif

ROM_START( tmc600s2 )
	ROM_REGION( 0x6000, CDP1802_TAG, 0 )
	ROM_LOAD( "sb30",       0x0000, 0x1000, CRC(95d1292a) SHA1(1fa52d59d3005f8ac74a32c2164fdb22947c2748) )
	ROM_LOAD( "sb31",       0x1000, 0x1000, CRC(2c8f3d17) SHA1(f14e8adbcddeaeaa29b1e7f3dfa741f4e230f599) )
	ROM_LOAD( "sb32",       0x2000, 0x1000, CRC(dd58a128) SHA1(be9bdb0fc5e0cc3dcc7f2fb7ccab69bf5b043803) )
	ROM_LOAD( "sb33",       0x3000, 0x1000, CRC(b7d241fa) SHA1(6f3eadf86c4e3aaf93d123e302a18dc4d9db964b) )
	ROM_SYSTEM_BIOS( 0, "sb040282", "SB040282" )
	ROMX_LOAD( "151182",    0x4000, 0x1000, CRC(c1a8d9d8) SHA1(4552e1f06d0e338ba7b0f1c3a20b8a51c27dafde), ROM_BIOS(0) )
	ROM_SYSTEM_BIOS( 1, "sbdos", "SBDOS" )
	ROMX_LOAD( "151182_",   0x4000, 0x1000, NO_DUMP, ROM_BIOS(1) )
	ROMX_LOAD( "151182_v",  0x5000, 0x1000, NO_DUMP, ROM_BIOS(1) )

	ROM_REGION( 0x1000, "chargen", 0 )
	ROM_LOAD( "chargen",    0x0000, 0x1000, CRC(93f92cbf) SHA1(371156fb38fa5319c6fde537ccf14eed94e7adfb) )
ROM_END

/* System Drivers */
//    YEAR  NAME      PARENT  COMPAT  MACHINE  INPUT   CLASS         INIT        COMPANY        FULLNAME                     FLAGS
//COMP( 1982, tmc600s1, 0,      0,      tmc600,  tmc600, tmc600_state, empty_init, "Telercas Oy", "Telmac TMC-600 (Sarja I)",  MACHINE_NOT_WORKING )
COMP( 1982, tmc600s2, 0,      0,      tmc600,  tmc600, tmc600_state, empty_init, "Telercas Oy", "Telmac TMC-600 (Sarja II)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )