summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/tmc2000e.cpp
blob: 8291efb580b12c3384745bfb81cfe4a8b02dfc2f (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
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/*

    Telmac 2000E
    ------------
    (c) 1980 Telercas Oy, Finland

    CPU:        CDP1802A    1.75 MHz
    RAM:        8 KB
    ROM:        8 KB

    Video:      CDP1864     1.75 MHz
    Color RAM:  1 KB

    Colors:     8 fg, 4 bg
    Resolution: 64x192
    Sound:      frequency control, volume on/off
    Keyboard:   ASCII (RCA VP-601/VP-611), KB-16/KB-64

    SBASIC:     24.0


    Telmac TMC-121/111/112
    ----------------------
    (c) 198? Telercas Oy, Finland

    CPU:        CDP1802A    ? MHz

    Built from Telmac 2000 series cards. Huge metal box.

*/

#include "includes/tmc2000e.h"

/* Read/Write Handlers */

READ8_MEMBER( tmc2000e_state::vismac_r )
{
	return 0;
}

WRITE8_MEMBER( tmc2000e_state::vismac_w )
{
}

READ8_MEMBER( tmc2000e_state::floppy_r )
{
	return 0;
}

WRITE8_MEMBER( tmc2000e_state::floppy_w )
{
}

READ8_MEMBER( tmc2000e_state::ascii_keyboard_r )
{
	return 0;
}

READ8_MEMBER( tmc2000e_state::io_r )
{
	return 0;
}

WRITE8_MEMBER( tmc2000e_state::io_w )
{
}

WRITE8_MEMBER( tmc2000e_state::io_select_w )
{
}

WRITE8_MEMBER( tmc2000e_state::keyboard_latch_w )
{
	m_keylatch = data;
}

/* Memory Maps */

static ADDRESS_MAP_START( tmc2000e_map, AS_PROGRAM, 8, tmc2000e_state )
	AM_RANGE(0x0000, 0x1fff) AM_RAM
	AM_RANGE(0xc000, 0xdfff) AM_ROM
	AM_RANGE(0xfc00, 0xffff) AM_WRITEONLY AM_SHARE("colorram")
ADDRESS_MAP_END

static ADDRESS_MAP_START( tmc2000e_io_map, AS_IO, 8, tmc2000e_state )
	AM_RANGE(0x01, 0x01) AM_DEVWRITE(CDP1864_TAG, cdp1864_device, tone_latch_w)
	AM_RANGE(0x02, 0x02) AM_DEVWRITE(CDP1864_TAG, cdp1864_device, step_bgcolor_w)
	AM_RANGE(0x03, 0x03) AM_READWRITE(ascii_keyboard_r, keyboard_latch_w)
	AM_RANGE(0x04, 0x04) AM_READWRITE(io_r, io_w)
	AM_RANGE(0x05, 0x05) AM_READWRITE(vismac_r, vismac_w)
	AM_RANGE(0x06, 0x06) AM_READWRITE(floppy_r, floppy_w)
	AM_RANGE(0x07, 0x07) AM_READ_PORT("DSW0") AM_WRITE(io_select_w)
ADDRESS_MAP_END

/* Input Ports */

static INPUT_PORTS_START( tmc2000e )
	PORT_START("Y0")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD )

	PORT_START("Y1")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD )

	PORT_START("Y2")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD )

	PORT_START("Y3")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD )

	PORT_START("Y4")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD )

	PORT_START("Y5")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD )

	PORT_START("Y6")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD )

	PORT_START("Y7")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD )

	PORT_START("DSW0")  // System Configuration DIPs
	PORT_DIPNAME( 0x80, 0x00, "Keyboard Type" )
	PORT_DIPSETTING(    0x00, "ASCII" )
	PORT_DIPSETTING(    0x80, "Matrix" )
	PORT_DIPNAME( 0x40, 0x00, "Operating System" )
	PORT_DIPSETTING(    0x00, "TOOL-2000-E" )
	PORT_DIPSETTING(    0x40, "Load from disk" )
	PORT_DIPNAME( 0x30, 0x00, "Display Interface" )
	PORT_DIPSETTING(    0x00, "PAL" )
	PORT_DIPSETTING(    0x10, "CDG-80" )
	PORT_DIPSETTING(    0x20, "VISMAC" )
	PORT_DIPSETTING(    0x30, "UART" )
	PORT_BIT( 0x0f, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START("RUN")
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Run/Reset") PORT_CODE(KEYCODE_R) PORT_TOGGLE
INPUT_PORTS_END

/* Video */

READ_LINE_MEMBER( tmc2000e_state::rdata_r )
{
	return BIT(m_color, 2);
}

READ_LINE_MEMBER( tmc2000e_state::bdata_r )
{
	return BIT(m_color, 1);
}

READ_LINE_MEMBER( tmc2000e_state::gdata_r )
{
	return BIT(m_color, 0);
}

/* CDP1802 Interface */

READ_LINE_MEMBER( tmc2000e_state::clear_r )
{
	return BIT(m_run->read(), 0);
}

READ_LINE_MEMBER( tmc2000e_state::ef2_r )
{
	return m_cassette->input() < 0;
}

READ_LINE_MEMBER( tmc2000e_state::ef3_r )
{
	uint8_t data = ~(m_key_row[m_keylatch / 8])->read();

	return BIT(data, m_keylatch % 8);
}

WRITE_LINE_MEMBER( tmc2000e_state::q_w )
{
	// turn CDP1864 sound generator on/off
	m_cti->aoe_w(state);

	// set Q led status
	output().set_led_value(1, state);

	// tape out
	m_cassette->output(state ? -1.0 : +1.0);

	// floppy control (FDC-6)
}

WRITE8_MEMBER( tmc2000e_state::dma_w )
{
	m_color = (m_colorram[offset & 0x3ff]) & 0x07; // 0x04 = R, 0x02 = B, 0x01 = G

	m_cti->con_w(0); // HACK
	m_cti->dma_w(space, offset, data);
}


/* Machine Initialization */

void tmc2000e_state::machine_start()
{
	/* register for state saving */
	save_item(NAME(m_cdp1864_efx));
	save_item(NAME(m_keylatch));
}

void tmc2000e_state::machine_reset()
{
	m_cti->reset();

	// reset program counter to 0xc000
}

/* Machine Drivers */

static MACHINE_CONFIG_START( tmc2000e, tmc2000e_state )
	// basic system hardware
	MCFG_CPU_ADD(CDP1802_TAG, CDP1802, XTAL_1_75MHz)
	MCFG_CPU_PROGRAM_MAP(tmc2000e_map)
	MCFG_CPU_IO_MAP(tmc2000e_io_map)
	MCFG_COSMAC_WAIT_CALLBACK(VCC)
	MCFG_COSMAC_CLEAR_CALLBACK(READLINE(tmc2000e_state, clear_r))
	MCFG_COSMAC_EF2_CALLBACK(READLINE(tmc2000e_state, ef2_r))
	MCFG_COSMAC_EF3_CALLBACK(READLINE(tmc2000e_state, ef3_r))
	MCFG_COSMAC_Q_CALLBACK(WRITELINE(tmc2000e_state, q_w))
	MCFG_COSMAC_DMAW_CALLBACK(WRITE8(tmc2000e_state, dma_w))

	// video hardware
	MCFG_CDP1864_SCREEN_ADD(SCREEN_TAG, XTAL_1_75MHz)
	MCFG_SCREEN_UPDATE_DEVICE(CDP1864_TAG, cdp1864_device, screen_update)

	// sound hardware
	MCFG_SPEAKER_STANDARD_MONO("mono")
	MCFG_CDP1864_ADD(CDP1864_TAG, SCREEN_TAG, XTAL_1_75MHz, GND, INPUTLINE(CDP1802_TAG, COSMAC_INPUT_LINE_INT), INPUTLINE(CDP1802_TAG, COSMAC_INPUT_LINE_DMAOUT), INPUTLINE(CDP1802_TAG, COSMAC_INPUT_LINE_EF1), NOOP, READLINE(tmc2000e_state, rdata_r), READLINE(tmc2000e_state, bdata_r), READLINE(tmc2000e_state, gdata_r))
	MCFG_CDP1864_CHROMINANCE(RES_K(2.2), RES_K(1), RES_K(5.1), RES_K(4.7)) // unverified
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)

	/* devices */
	MCFG_CASSETTE_ADD("cassette")
	MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_MUTED)

	/* internal ram */
	MCFG_RAM_ADD(RAM_TAG)
	MCFG_RAM_DEFAULT_SIZE("8K")
	MCFG_RAM_EXTRA_OPTIONS("40K")
MACHINE_CONFIG_END

/* ROMs */

ROM_START( tmc2000e )
	ROM_REGION( 0x10000, CDP1802_TAG, 0 )
	ROM_LOAD( "1", 0xc000, 0x0800, NO_DUMP )
	ROM_LOAD( "2", 0xc800, 0x0800, NO_DUMP )
	ROM_LOAD( "3", 0xd000, 0x0800, NO_DUMP )
	ROM_LOAD( "4", 0xd800, 0x0800, NO_DUMP )
ROM_END

//    YEAR  NAME      PARENT   COMPAT   MACHINE   INPUT     INIT    COMPANY        FULLNAME
COMP( 1980, tmc2000e, 0,       0,       tmc2000e, tmc2000e, driver_device, 0,       "Telercas Oy", "Telmac 2000E", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )