-
Notifications
You must be signed in to change notification settings - Fork 1.9k
/
executive10.cpp
352 lines (273 loc) · 10.5 KB
/
executive10.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
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
// license: BSD-3-Clause
// copyright-holders: Dirk Best
/***************************************************************************
Esprit Systems Executive 10/102
VT102 compatible terminal
Hardware:
- Intel P8088
- Intel D8284A
- Intel P8259A-8
- 2x 2764 EPROM, 1x 2732 EPROM
- SY2128-2 (2k RAM)
- X2212D NOVRAM
- MC68B50P
- SCN2681A
- 14.469 MHz XTAL (near CPU), 3.6864 MHz XTAL (near 2681)
- CRT 9007
- 2x CRT 9006-135
- CRT9021A
- 2764 EPROM
- 4x SY2128-2 (8k RAM)
- 21.800 MHz XTAL (near 9007), 16.960 MHz XTAL (near 9007)
- 9 position DIP switch
TODO:
- Improve rendering (132 columns, smooth scrolling, non-line attributes(?))
- NOVRAM store/recall
- Printer
- DIP switch
Notes:
- Other models in this line: 10/51 (IBM 5251), 10/78 (IBM 3278)
- To go online: Enter Set-Up, press 5 for next screen, press 4 to switch
from local to online (no feedback, would be shown on keyboard LEDs)
***************************************************************************/
#include "emu.h"
#include "executive10_102_kbd.h"
#include "bus/rs232/rs232.h"
#include "cpu/i86/i86.h"
#include "machine/6850acia.h"
#include "machine/mc68681.h"
#include "machine/pic8259.h"
#include "machine/x2212.h"
#include "video/crt9007.h"
#include "emupal.h"
#include "multibyte.h"
#include "screen.h"
namespace {
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class executive10_state : public driver_device
{
public:
executive10_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_novram(*this, "novram"),
m_pic(*this, "pic"),
m_screen(*this, "screen"),
m_palette(*this, "palette"),
m_vpac(*this, "vpac"),
m_duart(*this, "duart"),
m_acia(*this, "acia"),
m_cram(*this, "cram"),
m_aram(*this, "aram"),
m_chargen(*this, "chargen")
{ }
void executive10(machine_config &config);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
private:
required_device<i8088_cpu_device> m_maincpu;
required_device<x2212_device> m_novram;
required_device<pic8259_device> m_pic;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
required_device<crt9007_device> m_vpac;
required_device<scn2681_device> m_duart;
required_device<acia6850_device> m_acia;
required_shared_ptr<uint8_t> m_cram;
required_shared_ptr<uint8_t> m_aram;
required_region_ptr<uint8_t> m_chargen;
void mem_map(address_map &map);
void io_map(address_map &map);
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
};
//**************************************************************************
// ADDRESS MAPS
//**************************************************************************
void executive10_state::mem_map(address_map &map)
{
map.global_mask(0xffff);
map(0x0000, 0x07ff).ram();
map(0x2000, 0x2fff).ram().share("cram");
map(0x4000, 0x4fff).ram().share("aram");
map(0x6000, 0x60ff).rw(m_novram, FUNC(x2210_device::read), FUNC(x2210_device::write));
map(0xb000, 0xffff).rom().region("maincpu", 0);
}
void executive10_state::io_map(address_map &map)
{
map(0x000, 0x03f).rw(m_vpac, FUNC(crt9007_device::read), FUNC(crt9007_device::write));
map(0x040, 0x04f).rw(m_duart, FUNC(scn2681_device::read), FUNC(scn2681_device::write));
map(0x080, 0x080).w(m_acia, FUNC(acia6850_device::control_w));
map(0x081, 0x081).r(m_acia, FUNC(acia6850_device::status_r));
map(0x082, 0x082).w(m_acia, FUNC(acia6850_device::data_w));
map(0x083, 0x083).r(m_acia, FUNC(acia6850_device::data_r));
map(0x0c0, 0x0c1).rw(m_pic, FUNC(pic8259_device::read), FUNC(pic8259_device::write));
//map(0x180, 0x180).nopw(); // novram store/recall?
}
//**************************************************************************
// INPUT PORT DEFINITIONS
//**************************************************************************
static INPUT_PORTS_START( executive10 )
INPUT_PORTS_END
//**************************************************************************
// VIDEO EMULATION
//**************************************************************************
uint32_t executive10_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
const pen_t *const pen = m_palette->pens();
for (int y = 0; y < 25; y++)
{
// f--------------- double height line
// -e-------------- double width line
// --dc------------ unknown
// ----ba9876543210 line address
uint16_t addr = get_u16le(&m_cram[0xfcc + (y * 2)]);
bool dw = addr & 0xc000;
uint8_t line_attr = 0x00;
for (int x = 0; x < (dw ? 40 : 80); x++)
{
uint16_t code = m_cram[(addr & 0x0fff) + x];
// move bit 7 to 8 (acs characters)
code = bitswap<9>(code, 7, 8, 6, 5, 4, 3, 2, 1, 0);
// select 80/132 column character set
code |= 0x80; // fixed 80 columns mode for now
// 7------- active for line attributes
// -6------ unknown
// --5----- blink
// ---4---- reverse
// ----3--- 0 = blank?
// -----2-- underline
// ------1- unknown
// -------0 highlight
uint8_t attr = m_aram[(addr & 0x0fff) + x];
// new line attribute?
if (BIT(attr, 7))
line_attr = attr;
for (int i = 0; i < 12; i++)
{
unsigned char_line = i;
// adjust rendered line for double height mode
if (BIT(addr, 15))
char_line = (i / 2) + (BIT(addr, 14) * (12 / 2));
uint16_t data = m_chargen[(code << 4) + char_line] << 1;
// maybe? fixes line drawing characters
if (BIT(data, 8) == 1)
{
if (BIT(data, 1) == 1)
data |= 0x001;
if (BIT(data, 7) == 0)
data &= ~0x100;
}
// underline?
if (BIT(line_attr, 2) && i == 10)
data = 0x1ff;
// reverse?
if (BIT(line_attr, 4))
data = ~data;
// blink?
if (BIT(line_attr, 5) && (m_screen->frame_number() & 0x20)) // wrong timing
data = 0x000;
// cursor?
if (m_vpac->cursor_active(x, y))
data = ~data; // might be solid instead
// foreground/background colors
rgb_t fg = BIT(line_attr, 0) ? pen[2] : pen[1];
rgb_t bg = pen[0];
// draw character line
if (dw)
{
for (int p = 0; p < 9; p++)
{
bitmap.pix(y * 12 + i, x * 18 + p * 2 + 0) = BIT(data, 8 - p) ? fg : bg;
bitmap.pix(y * 12 + i, x * 18 + p * 2 + 1) = BIT(data, 8 - p) ? fg : bg;
}
}
else
{
for (int p = 0; p < 9; p++)
bitmap.pix(y * 12 + i, x * 9 + p) = BIT(data, 8 - p) ? fg : bg;
}
}
}
}
return 0;
}
static const gfx_layout char_layout =
{
8, 12,
RGN_FRAC(1,1),
1,
{ 0 },
{ 0, 1, 2, 3, 4, 5, 6, 7 },
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8 },
8 * 16
};
static GFXDECODE_START( chars )
GFXDECODE_ENTRY("chargen", 0, char_layout, 0, 1)
GFXDECODE_END
//**************************************************************************
// MACHINE EMULATION
//**************************************************************************
void executive10_state::machine_start()
{
}
void executive10_state::machine_reset()
{
}
//**************************************************************************
// MACHINE DEFINTIONS
//**************************************************************************
void executive10_state::executive10(machine_config &config)
{
I8088(config, m_maincpu, 14.469_MHz_XTAL / 3);
m_maincpu->set_addrmap(AS_PROGRAM, &executive10_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &executive10_state::io_map);
m_maincpu->set_irq_acknowledge_callback(m_pic, FUNC(pic8259_device::inta_cb));
X2212(config, m_novram);
PIC8259(config, m_pic);
m_pic->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_color(rgb_t::green());
m_screen->set_raw(16.960_MHz_XTAL, 890, 0, 720, 320, 0, 300); // maybe
m_screen->set_screen_update(FUNC(executive10_state::screen_update));
PALETTE(config, m_palette, palette_device::MONOCHROME_HIGHLIGHT);
GFXDECODE(config, "gfxdecode", m_palette, chars);
CRT9007(config, m_vpac, 16.960_MHz_XTAL / 9);
m_vpac->set_screen("screen");
m_vpac->set_character_width(9);
m_vpac->int_callback().set(m_pic, FUNC(pic8259_device::ir2_w));
SCN2681(config, m_duart, 3.6864_MHz_XTAL);
m_duart->a_tx_cb().set("serial", FUNC(rs232_port_device::write_txd));
m_duart->outport_cb().set(m_acia, FUNC(acia6850_device::write_rxc)).bit(3);
m_duart->outport_cb().append(m_acia, FUNC(acia6850_device::write_txc)).bit(3);
m_duart->outport_cb().append(m_pic, FUNC(pic8259_device::ir0_w)).bit(4).invert();
m_duart->outport_cb().append(m_pic, FUNC(pic8259_device::ir1_w)).bit(5).invert();
rs232_port_device &serial(RS232_PORT(config, "serial", default_rs232_devices, nullptr));
serial.rxd_handler().set(m_duart, FUNC(scn2681_device::rx_a_w));
serial.cts_handler().set(m_duart, FUNC(scn2681_device::ip0_w));
ACIA6850(config, m_acia);
m_acia->irq_handler().set(m_pic, FUNC(pic8259_device::ir4_w));
m_acia->txd_handler().set("kbd", FUNC(executive10_102_kbd_device::rxd_w));
executive10_102_kbd_device &kbd(EXECUTIVE10_102_KBD(config, "kbd"));
kbd.txd_cb().set(m_acia, FUNC(acia6850_device::write_rxd));
kbd.cts_cb().set(m_acia, FUNC(acia6850_device::write_cts));
}
//**************************************************************************
// ROM DEFINITIONS
//**************************************************************************
ROM_START( exe10102 )
ROM_REGION(0x5000, "maincpu", 0)
ROM_LOAD("113-03-0.u25", 0x0000, 0x1000, CRC(bf5498d4) SHA1(46a3e832a1ba9a08c1d4938d6c94b2194ef00081))
ROM_LOAD("113-01-0.u26", 0x1000, 0x2000, CRC(5e6babb3) SHA1(4669107e9cfaba1a697db6e832bc36c8220ee591))
ROM_LOAD("113-02-0.u27", 0x3000, 0x2000, CRC(05bcd49b) SHA1(fbeac116ded46215644df7db1810f4f9d41e49ca))
ROM_REGION(0x2000, "chargen", 0)
ROM_LOAD("111-01-0.u59", 0x0000, 0x2000, CRC(4e54c69f) SHA1(92640a57863c5eab9db6d07c31deebfa3d1dafa5))
ROM_END
} // anonymous namespace
//**************************************************************************
// SYSTEM DRIVERS
//**************************************************************************
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 1983, exe10102, 0, 0, executive10, executive10, executive10_state, empty_init, "Esprit Systems", "Executive 10/102", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )