/
tmc2000e.cpp
332 lines (265 loc) · 9.03 KB
/
tmc2000e.cpp
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
// 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 "emu.h"
#include "tmc2000e.h"
#include "screen.h"
#include "speaker.h"
/* Read/Write Handlers */
uint8_t tmc2000e_state::vismac_r()
{
return 0;
}
void tmc2000e_state::vismac_w(uint8_t data)
{
}
uint8_t tmc2000e_state::floppy_r()
{
return 0;
}
void tmc2000e_state::floppy_w(uint8_t data)
{
}
uint8_t tmc2000e_state::ascii_keyboard_r()
{
return 0;
}
uint8_t tmc2000e_state::io_r()
{
return 0;
}
void tmc2000e_state::io_w(uint8_t data)
{
}
void tmc2000e_state::io_select_w(uint8_t data)
{
}
void tmc2000e_state::keyboard_latch_w(uint8_t data)
{
m_keylatch = data;
}
/* Memory Maps */
void tmc2000e_state::tmc2000e_map(address_map &map)
{
map(0x0000, 0x1fff).ram();
map(0xc000, 0xdfff).rom();
map(0xfc00, 0xffff).writeonly().share("colorram");
}
void tmc2000e_state::tmc2000e_io_map(address_map &map)
{
map(0x01, 0x01).w(m_cti, FUNC(cdp1864_device::tone_latch_w));
map(0x02, 0x02).w(m_cti, FUNC(cdp1864_device::step_bgcolor_w));
map(0x03, 0x03).rw(FUNC(tmc2000e_state::ascii_keyboard_r), FUNC(tmc2000e_state::keyboard_latch_w));
map(0x04, 0x04).rw(FUNC(tmc2000e_state::io_r), FUNC(tmc2000e_state::io_w));
map(0x05, 0x05).rw(FUNC(tmc2000e_state::vismac_r), FUNC(tmc2000e_state::vismac_w));
map(0x06, 0x06).rw(FUNC(tmc2000e_state::floppy_r), FUNC(tmc2000e_state::floppy_w));
map(0x07, 0x07).portr("DSW0").w(FUNC(tmc2000e_state::io_select_w));
}
/* 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 */
int tmc2000e_state::rdata_r()
{
return BIT(m_color, 2);
}
int tmc2000e_state::bdata_r()
{
return BIT(m_color, 1);
}
int tmc2000e_state::gdata_r()
{
return BIT(m_color, 0);
}
/* CDP1802 Interface */
int tmc2000e_state::clear_r()
{
return BIT(m_run->read(), 0);
}
int tmc2000e_state::ef2_r()
{
return m_cassette->input() < 0;
}
int tmc2000e_state::ef3_r()
{
uint8_t data = ~(m_key_row[m_keylatch / 8])->read();
return BIT(data, m_keylatch % 8);
}
void tmc2000e_state::q_w(int state)
{
// turn CDP1864 sound generator on/off
m_cti->aoe_w(state);
// set Q led status
m_led = state ? 1 : 0;
// tape out
m_cassette->output(state ? -1.0 : +1.0);
// floppy control (FDC-6)
}
void tmc2000e_state::dma_w(offs_t offset, uint8_t data)
{
m_color = (m_colorram[offset & 0x3ff]) & 0x07; // 0x04 = R, 0x02 = B, 0x01 = G
m_cti->con_w(0); // HACK
m_cti->dma_w(data);
}
/* Machine Initialization */
void tmc2000e_state::machine_start()
{
m_led.resolve();
/* 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 */
void tmc2000e_state::tmc2000e(machine_config &config)
{
// basic system hardware
CDP1802(config, m_maincpu, 1.75_MHz_XTAL);
m_maincpu->set_addrmap(AS_PROGRAM, &tmc2000e_state::tmc2000e_map);
m_maincpu->set_addrmap(AS_IO, &tmc2000e_state::tmc2000e_io_map);
m_maincpu->wait_cb().set_constant(1);
m_maincpu->clear_cb().set(FUNC(tmc2000e_state::clear_r));
m_maincpu->ef2_cb().set(FUNC(tmc2000e_state::ef2_r));
m_maincpu->ef3_cb().set(FUNC(tmc2000e_state::ef3_r));
m_maincpu->q_cb().set(FUNC(tmc2000e_state::q_w));
m_maincpu->dma_wr_cb().set(FUNC(tmc2000e_state::dma_w));
// video hardware
SCREEN(config, SCREEN_TAG, SCREEN_TYPE_RASTER);
// sound hardware
SPEAKER(config, "mono").front_center();
CDP1864(config, m_cti, 1.75_MHz_XTAL).set_screen(SCREEN_TAG);
m_cti->inlace_cb().set_constant(0);
m_cti->int_cb().set_inputline(m_maincpu, COSMAC_INPUT_LINE_INT);
m_cti->dma_out_cb().set_inputline(m_maincpu, COSMAC_INPUT_LINE_DMAOUT);
m_cti->efx_cb().set_inputline(m_maincpu, COSMAC_INPUT_LINE_EF1);
m_cti->rdata_cb().set(FUNC(tmc2000e_state::rdata_r));
m_cti->bdata_cb().set(FUNC(tmc2000e_state::bdata_r));
m_cti->gdata_cb().set(FUNC(tmc2000e_state::gdata_r));
m_cti->set_chrominance(RES_K(2.2), RES_K(1), RES_K(5.1), RES_K(4.7)); // unverified
m_cti->add_route(ALL_OUTPUTS, "mono", 0.25);
/* devices */
CASSETTE(config, m_cassette).set_default_state(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_ENABLED);
m_cassette->add_route(ALL_OUTPUTS, "mono", 0.05);
/* internal ram */
RAM(config, RAM_TAG).set_default_size("8K").set_extra_options("40K");
}
/* 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 CLASS INIT COMPANY FULLNAME STATE
COMP( 1980, tmc2000e, 0, 0, tmc2000e, tmc2000e, tmc2000e_state, empty_init, "Telercas Oy", "Telmac 2000E", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )