summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/alto2.cpp
blob: bbcf2135b0e8f6986522c9b0321fb708f60529eb (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
// license:GPL-2.0+
// copyright-holders:Juergen Buchmueller
/***************************************************************************
 *   Xerox AltoII driver for MESS
 *
 ***************************************************************************/

#include "emu.h"
#include "cpu/alto2/alto2cpu.h"
#include "machine/diablo_hd.h"
#include "screen.h"
#include "rendlay.h"
#include "speaker.h"

class alto2_state : public driver_device
{
public:
	alto2_state(const machine_config &mconfig, device_type type, const char *tag) :
		driver_device(mconfig, type, tag),
		m_maincpu(*this, "maincpu"),
		m_speaker(*this, "speaker"),
		m_io_row0(*this, "ROW0"),
		m_io_row1(*this, "ROW1"),
		m_io_row2(*this, "ROW2"),
		m_io_row3(*this, "ROW3"),
		m_io_row4(*this, "ROW4"),
		m_io_row5(*this, "ROW5"),
		m_io_row6(*this, "ROW6"),
		m_io_row7(*this, "ROW7"),
		m_io_config(*this, "CONFIG")
	{ }

	DECLARE_DRIVER_INIT(alto2);
	DECLARE_MACHINE_RESET(alto2);

	void alto2(machine_config &config);
	void alto2_const_map(address_map &map);
	void alto2_iomem_map(address_map &map);
	void alto2_ucode_map(address_map &map);
protected:
	required_device<alto2_cpu_device> m_maincpu;
	required_device<speaker_sound_device> m_speaker;
	required_ioport m_io_row0;
	required_ioport m_io_row1;
	required_ioport m_io_row2;
	required_ioport m_io_row3;
	required_ioport m_io_row4;
	required_ioport m_io_row5;
	required_ioport m_io_row6;
	required_ioport m_io_row7;
	optional_ioport m_io_config;
	static const device_timer_id TIMER_VBLANK = 0;
	emu_timer* m_vblank_timer;
	virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
};

/* Input Ports */

#define PORT_KEY(_bit,_code,_char1,_char2,_name) \
	PORT_BIT(_bit, IP_ACTIVE_LOW, IPT_KEYBOARD) \
	PORT_CODE(_code) PORT_NAME(_name) \
	PORT_CHAR(_char1) PORT_CHAR(_char2)
#define SPACING "     "

static INPUT_PORTS_START( alto2 )
	PORT_START("ROW0")
	PORT_KEY(A2_KEY_5,          KEYCODE_5,          '5',            '%',          "5" SPACING "%")  //!< normal: 5    shifted: %
	PORT_KEY(A2_KEY_4,          KEYCODE_4,          '4',            '$',          "4" SPACING "$")  //!< normal: 4    shifted: $
	PORT_KEY(A2_KEY_6,          KEYCODE_6,          '6',            '~',          "6" SPACING "~")  //!< normal: 6    shifted: ~
	PORT_KEY(A2_KEY_E,          KEYCODE_E,          'e',            'E',          "e" SPACING "E")  //!< normal: e    shifted: E
	PORT_KEY(A2_KEY_7,          KEYCODE_7,          '7',            '&',          "7" SPACING "&")  //!< normal: 7    shifted: &
	PORT_KEY(A2_KEY_D,          KEYCODE_D,          'd',            'D',          "d" SPACING "D")  //!< normal: d    shifted: D
	PORT_KEY(A2_KEY_U,          KEYCODE_U,          'u',            'U',          "u" SPACING "U")  //!< normal: u    shifted: U
	PORT_KEY(A2_KEY_V,          KEYCODE_V,          'v',            'V',          "v" SPACING "V")  //!< normal: v    shifted: V
	PORT_KEY(A2_KEY_0,          KEYCODE_0,          '0',            ')',          "0" SPACING ")")  //!< normal: 0    shifted: )
	PORT_KEY(A2_KEY_K,          KEYCODE_K,          'k',            'K',          "k" SPACING "K")  //!< normal: k    shifted: K
	PORT_KEY(A2_KEY_MINUS,      KEYCODE_MINUS,      '-',            '_',          "-" SPACING "_")  //!< normal: -    shifted: _
	PORT_KEY(A2_KEY_P,          KEYCODE_P,          'p',            'P',          "p" SPACING "P")  //!< normal: p    shifted: P
	PORT_KEY(A2_KEY_SLASH,      KEYCODE_SLASH,      '/',            '?',          "/" SPACING "?")  //!< normal: /    shifted: ?
	PORT_KEY(A2_KEY_BACKSLASH,  KEYCODE_BACKSLASH,  '\\',           '|',         "\\" SPACING "|")  //!< normal: \    shifted: |
	PORT_KEY(A2_KEY_LF,         KEYCODE_DOWN,       10,             10,           "LF"           )  //!< normal: LF   shifted: ?
	PORT_KEY(A2_KEY_BS,         KEYCODE_BACKSPACE,  8,              8,            "BS"           )  //!< normal: BS   shifted: ?

	PORT_START("ROW1")
	PORT_KEY(A2_KEY_3,          KEYCODE_3,          '3',            '#',          "3" SPACING "#")  //!< normal: 3    shifted: #
	PORT_KEY(A2_KEY_2,          KEYCODE_2,          '2',            '@',          "2" SPACING "@")  //!< normal: 2    shifted: @
	PORT_KEY(A2_KEY_W,          KEYCODE_W,          'w',            'W',          "w" SPACING "W")  //!< normal: w    shifted: W
	PORT_KEY(A2_KEY_Q,          KEYCODE_Q,          'q',            'Q',          "q" SPACING "Q")  //!< normal: q    shifted: Q
	PORT_KEY(A2_KEY_S,          KEYCODE_S,          's',            'S',          "s" SPACING "S")  //!< normal: s    shifted: S
	PORT_KEY(A2_KEY_A,          KEYCODE_A,          'a',            'A',          "a" SPACING "A")  //!< normal: a    shifted: A
	PORT_KEY(A2_KEY_9,          KEYCODE_9,          '9',            '(',          "9" SPACING "(")  //!< normal: 9    shifted: (
	PORT_KEY(A2_KEY_I,          KEYCODE_I,          'i',            'I',          "i" SPACING "I")  //!< normal: i    shifted: I
	PORT_KEY(A2_KEY_X,          KEYCODE_X,          'x',            'X',          "x" SPACING "X")  //!< normal: x    shifted: X
	PORT_KEY(A2_KEY_O,          KEYCODE_O,          'o',            'O',          "o" SPACING "O")  //!< normal: o    shifted: O
	PORT_KEY(A2_KEY_L,          KEYCODE_L,          'l',            'L',          "l" SPACING "L")  //!< normal: l    shifted: L
	PORT_KEY(A2_KEY_COMMA,      KEYCODE_COMMA,      ',',            '<',          "," SPACING "<")  //!< normal: ,    shifted: <
	PORT_KEY(A2_KEY_QUOTE,      KEYCODE_QUOTE,      39,             34,           "'" SPACING "\"") //!< normal: '    shifted: "
	PORT_KEY(A2_KEY_RBRACKET,   KEYCODE_CLOSEBRACE, ']',            '}',          "]" SPACING "}")  //!< normal: ]    shifted: }
	PORT_KEY(A2_KEY_BLANK_MID,  KEYCODE_END,        0,              0,            "MID"          )  //!< middle blank key
	PORT_KEY(A2_KEY_BLANK_TOP,  KEYCODE_PGUP,       0,              0,            "TOP"          )  //!< top blank key

	PORT_START("ROW2")
	PORT_KEY(A2_KEY_1,          KEYCODE_1,          '1',            '!',          "1" SPACING "!")  //!< normal: 1    shifted: !
	PORT_KEY(A2_KEY_ESCAPE,     KEYCODE_ESC,        27,             0,            "ESC"          )  //!< normal: ESC  shifted: ?
	PORT_KEY(A2_KEY_TAB,        KEYCODE_TAB,        9,              0,            "TAB"          )  //!< normal: TAB  shifted: ?
	PORT_KEY(A2_KEY_F,          KEYCODE_F,          'f',            'F',          "f" SPACING "F")  //!< normal: f    shifted: F
	PORT_KEY(A2_KEY_CTRL,       KEYCODE_LCONTROL,   0,              0,            "CTRL"         )  //!< CTRL
	PORT_KEY(A2_KEY_C,          KEYCODE_C,          'c',            'C',          "c" SPACING "C")  //!< normal: c    shifted: C
	PORT_KEY(A2_KEY_J,          KEYCODE_J,          'j',            'J',          "j" SPACING "J")  //!< normal: j    shifted: J
	PORT_KEY(A2_KEY_B,          KEYCODE_B,          'b',            'B',          "b" SPACING "B")  //!< normal: b    shifted: B
	PORT_KEY(A2_KEY_Z,          KEYCODE_Z,          'z',            'Z',          "z" SPACING "Z")  //!< normal: z    shifted: Z
	PORT_KEY(A2_KEY_LSHIFT,     KEYCODE_LSHIFT,     UCHAR_SHIFT_1,  0,            "LSHIFT"       )  //!< LSHIFT
	PORT_KEY(A2_KEY_PERIOD,     KEYCODE_STOP,       '.',            '>',          "." SPACING ">")  //!< normal: .    shifted: >
	PORT_KEY(A2_KEY_SEMICOLON,  KEYCODE_COLON,      ';',            ':',          ";" SPACING ":")  //!< normal: ;    shifted: :
	PORT_KEY(A2_KEY_RETURN,     KEYCODE_ENTER,      13,             0,            "RETURN"       )  //!< RETURN
	PORT_KEY(A2_KEY_LEFTARROW,  KEYCODE_LEFT,       0,              0,            "???" SPACING "???")  //!< normal: left arrow   shifted: up arrow (caret)
	PORT_KEY(A2_KEY_DEL,        KEYCODE_DEL,        UCHAR_MAMEKEY(DEL), 0,        "DEL"          )  //!< normal: DEL  shifted: ?
	PORT_KEY(A2_KEY_MSW_2_17,   KEYCODE_MENU,       0,              0,            "MSW2/17"      )  //!< unused on Microswitch KDB

	PORT_START("ROW3")
	PORT_KEY(A2_KEY_R,          KEYCODE_R,          'r',            'R',          "r" SPACING "R")  //!< normal: r    shifted: R
	PORT_KEY(A2_KEY_T,          KEYCODE_T,          't',            'T',          "t" SPACING "T")  //!< normal: t    shifted: T
	PORT_KEY(A2_KEY_G,          KEYCODE_G,          'g',            'G',          "g" SPACING "G")  //!< normal: g    shifted: G
	PORT_KEY(A2_KEY_Y,          KEYCODE_Y,          'y',            'Y',          "y" SPACING "Y")  //!< normal: y    shifted: Y
	PORT_KEY(A2_KEY_H,          KEYCODE_H,          'h',            'H',          "h" SPACING "H")  //!< normal: h    shifted: H
	PORT_KEY(A2_KEY_8,          KEYCODE_8,          '8',            '*',          "8" SPACING "*")  //!< normal: 8    shifted: *
	PORT_KEY(A2_KEY_N,          KEYCODE_N,          'n',            'N',          "n" SPACING "N")  //!< normal: n    shifted: N
	PORT_KEY(A2_KEY_M,          KEYCODE_M,          'm',            'M',          "m" SPACING "M")  //!< normal: m    shifted: M
	PORT_KEY(A2_KEY_LOCK,       KEYCODE_SCRLOCK,    0,              0,            "LOCK"         )  //!< LOCK
	PORT_KEY(A2_KEY_SPACE,      KEYCODE_SPACE,      32,             0,            "SPACE"        )  //!< SPACE
	PORT_KEY(A2_KEY_LBRACKET,   KEYCODE_OPENBRACE,  '[',            '{',          "[" SPACING "{")  //!< normal: [    shifted: {
	PORT_KEY(A2_KEY_EQUALS,     KEYCODE_EQUALS,     '=',            '+',          "=" SPACING "+")  //!< normal: =    shifted: +
	PORT_KEY(A2_KEY_RSHIFT,     KEYCODE_RSHIFT,     UCHAR_SHIFT_2,  0,            "RSHIFT"       )  //!< RSHIFT
	PORT_KEY(A2_KEY_BLANK_BOT,  KEYCODE_PGDN,       0,              0,            "BOT"          )  //!< bottom blank key
	PORT_KEY(A2_KEY_MSW_3_16,   KEYCODE_HOME,       0,              0,            "MSW3/16"      )  //!< unused on Microswitch KDB
	PORT_KEY(A2_KEY_MSW_3_17,   KEYCODE_INSERT,     0,              0,            "MSW3/17"      )  //!< unused on Microswitch KDB

	PORT_START("ROW4")
	PORT_KEY(A2_KEY_FR2,        KEYCODE_F6,         0,              0,            "FR2"          )  //!< ADL right function key 2
	PORT_KEY(A2_KEY_FL2,        KEYCODE_F2,         0,              0,            "FL2"          )  //!< ADL left function key 2

	PORT_START("ROW5")
	PORT_KEY(A2_KEY_FR4,        KEYCODE_F8,         0,              0,            "FR4"          )  //!< ADL right function key 4
	PORT_KEY(A2_KEY_BW,         KEYCODE_F10,        0,              0,            "BW"           )  //!< ADL BW (?)

	PORT_START("ROW6")
	PORT_KEY(A2_KEY_FR3,        KEYCODE_F7,         0,              0,            "FR3"          )  //!< ADL right function key 3
	PORT_KEY(A2_KEY_FL1,        KEYCODE_F1,         0,              0,            "FL1"          )  //!< ADL left function key 1
	PORT_KEY(A2_KEY_FL3,        KEYCODE_F3,         0,              0,            "FL3"          )  //!< ADL left function key 3

	PORT_START("ROW7")
	PORT_KEY(A2_KEY_FR1,        KEYCODE_F5,         0,              0,            "FR1"          )  //!< ADL right function key 1
	PORT_KEY(A2_KEY_FL4,        KEYCODE_F4,         0,              0,            "FL4"          )  //!< ADL left function key 4
	PORT_KEY(A2_KEY_FR5,        KEYCODE_F9,         0,              0,            "FR5"          )  //!< ADL right function key 5

	PORT_START("mouseb0")   // Mouse button 0
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_NAME("Mouse RED (left)")      PORT_PLAYER(1) PORT_CODE(MOUSECODE_BUTTON1) PORT_CHANGED_MEMBER( ":maincpu", alto2_cpu_device, mouse_button_0, nullptr )
	PORT_START("mouseb1")   // Mouse button 1
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON2) PORT_NAME("Mouse BLUE (right)")    PORT_PLAYER(1) PORT_CODE(MOUSECODE_BUTTON2) PORT_CHANGED_MEMBER( ":maincpu", alto2_cpu_device, mouse_button_1, nullptr )
	PORT_START("mouseb2")   // Mouse button 2
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON3) PORT_NAME("Mouse YELLOW (middle)") PORT_PLAYER(1) PORT_CODE(MOUSECODE_BUTTON3) PORT_CHANGED_MEMBER( ":maincpu", alto2_cpu_device, mouse_button_2, nullptr )

	PORT_START("mousex")    // Mouse - X AXIS
	PORT_BIT( 0xffff, 0, IPT_MOUSE_X) PORT_SENSITIVITY(100) PORT_KEYDELTA(1) PORT_CHANGED_MEMBER( ":maincpu", alto2_cpu_device, mouse_motion_x, nullptr )

	PORT_START("mousey")    // Mouse - Y AXIS
	PORT_BIT( 0xffff, 0, IPT_MOUSE_Y) PORT_SENSITIVITY(100) PORT_KEYDELTA(1) PORT_CHANGED_MEMBER( ":maincpu", alto2_cpu_device, mouse_motion_y, nullptr )

	PORT_START("CONFIG")    /* Memory switch on AIM board */
	PORT_CONFNAME( 0x01, 0x01, "Memory switch")
	PORT_CONFSETTING( 0x00, "on")
	PORT_CONFSETTING( 0x01, "off")
	PORT_CONFNAME( 0x06, 0x02, "CROM/CRAM configuration")
	PORT_CONFSETTING( 0x00, "Invalid (no CROM/CRAM)")
	PORT_CONFSETTING( 0x02, "1K CROM, 1K CRAM")
	PORT_CONFSETTING( 0x04, "2K CROM, 1K CRAM")
	PORT_CONFSETTING( 0x06, "1K CROM, 3K CRAM")
	PORT_CONFNAME( 0x70, 0x00, "Ethernet breath-of-life")
	PORT_CONFSETTING( 0x00, "off")
	PORT_CONFSETTING( 0x10, "5 seconds")
	PORT_CONFSETTING( 0x20, "10 seconds")
	PORT_CONFSETTING( 0x30, "15 seconds")
	PORT_CONFSETTING( 0x40, "30 seconds")
	PORT_CONFSETTING( 0x50, "60 seconds")
	PORT_CONFSETTING( 0x60, "90 seconds")
	PORT_CONFSETTING( 0x70, "120 seconds")

	PORT_START("ETHERID")
	PORT_DIPNAME( 0377, 0042, "Ethernet ID")
	PORT_DIPSETTING( 0000, "No ether") PORT_DIPSETTING( 0001, "ID 001")   PORT_DIPSETTING( 0002, "ID 002")   PORT_DIPSETTING( 0003, "ID 003")
	PORT_DIPSETTING( 0004, "ID 004")   PORT_DIPSETTING( 0005, "ID 005")   PORT_DIPSETTING( 0006, "ID 006")   PORT_DIPSETTING( 0007, "ID 007")
	PORT_DIPSETTING( 0010, "ID 010")   PORT_DIPSETTING( 0011, "ID 011")   PORT_DIPSETTING( 0012, "ID 012")   PORT_DIPSETTING( 0013, "ID 013")
	PORT_DIPSETTING( 0014, "ID 014")   PORT_DIPSETTING( 0015, "ID 015")   PORT_DIPSETTING( 0016, "ID 016")   PORT_DIPSETTING( 0017, "ID 017")
	PORT_DIPSETTING( 0020, "ID 020")   PORT_DIPSETTING( 0021, "ID 021")   PORT_DIPSETTING( 0022, "ID 022")   PORT_DIPSETTING( 0023, "ID 023")
	PORT_DIPSETTING( 0024, "ID 024")   PORT_DIPSETTING( 0025, "ID 025")   PORT_DIPSETTING( 0026, "ID 026")   PORT_DIPSETTING( 0027, "ID 027")
	PORT_DIPSETTING( 0030, "ID 030")   PORT_DIPSETTING( 0031, "ID 031")   PORT_DIPSETTING( 0032, "ID 032")   PORT_DIPSETTING( 0033, "ID 033")
	PORT_DIPSETTING( 0034, "ID 034")   PORT_DIPSETTING( 0035, "ID 035")   PORT_DIPSETTING( 0036, "ID 036")   PORT_DIPSETTING( 0037, "ID 037")
	PORT_DIPSETTING( 0040, "ID 040")   PORT_DIPSETTING( 0041, "ID 041")   PORT_DIPSETTING( 0042, "ID 042")   PORT_DIPSETTING( 0043, "ID 043")
	PORT_DIPSETTING( 0044, "ID 044")   PORT_DIPSETTING( 0045, "ID 045")   PORT_DIPSETTING( 0046, "ID 046")   PORT_DIPSETTING( 0047, "ID 047")
	PORT_DIPSETTING( 0050, "ID 050")   PORT_DIPSETTING( 0051, "ID 051")   PORT_DIPSETTING( 0052, "ID 052")   PORT_DIPSETTING( 0053, "ID 053")
	PORT_DIPSETTING( 0054, "ID 054")   PORT_DIPSETTING( 0055, "ID 055")   PORT_DIPSETTING( 0056, "ID 056")   PORT_DIPSETTING( 0057, "ID 057")
	PORT_DIPSETTING( 0060, "ID 060")   PORT_DIPSETTING( 0061, "ID 061")   PORT_DIPSETTING( 0062, "ID 062")   PORT_DIPSETTING( 0063, "ID 063")
	PORT_DIPSETTING( 0064, "ID 064")   PORT_DIPSETTING( 0065, "ID 065")   PORT_DIPSETTING( 0066, "ID 066")   PORT_DIPSETTING( 0067, "ID 067")
	PORT_DIPSETTING( 0070, "ID 070")   PORT_DIPSETTING( 0071, "ID 071")   PORT_DIPSETTING( 0072, "ID 072")   PORT_DIPSETTING( 0073, "ID 073")
	PORT_DIPSETTING( 0074, "ID 074")   PORT_DIPSETTING( 0075, "ID 075")   PORT_DIPSETTING( 0076, "ID 076")   PORT_DIPSETTING( 0077, "ID 077")
	PORT_DIPSETTING( 0100, "ID 100")   PORT_DIPSETTING( 0101, "ID 101")   PORT_DIPSETTING( 0102, "ID 102")   PORT_DIPSETTING( 0103, "ID 103")
	PORT_DIPSETTING( 0104, "ID 104")   PORT_DIPSETTING( 0105, "ID 105")   PORT_DIPSETTING( 0106, "ID 106")   PORT_DIPSETTING( 0107, "ID 107")
	PORT_DIPSETTING( 0110, "ID 110")   PORT_DIPSETTING( 0111, "ID 111")   PORT_DIPSETTING( 0112, "ID 112")   PORT_DIPSETTING( 0113, "ID 113")
	PORT_DIPSETTING( 0114, "ID 114")   PORT_DIPSETTING( 0115, "ID 115")   PORT_DIPSETTING( 0116, "ID 116")   PORT_DIPSETTING( 0117, "ID 117")
	PORT_DIPSETTING( 0120, "ID 120")   PORT_DIPSETTING( 0121, "ID 121")   PORT_DIPSETTING( 0122, "ID 122")   PORT_DIPSETTING( 0123, "ID 123")
	PORT_DIPSETTING( 0124, "ID 124")   PORT_DIPSETTING( 0125, "ID 125")   PORT_DIPSETTING( 0126, "ID 126")   PORT_DIPSETTING( 0127, "ID 127")
	PORT_DIPSETTING( 0130, "ID 130")   PORT_DIPSETTING( 0131, "ID 131")   PORT_DIPSETTING( 0132, "ID 132")   PORT_DIPSETTING( 0133, "ID 133")
	PORT_DIPSETTING( 0134, "ID 134")   PORT_DIPSETTING( 0135, "ID 135")   PORT_DIPSETTING( 0136, "ID 136")   PORT_DIPSETTING( 0137, "ID 137")
	PORT_DIPSETTING( 0140, "ID 140")   PORT_DIPSETTING( 0141, "ID 141")   PORT_DIPSETTING( 0142, "ID 142")   PORT_DIPSETTING( 0143, "ID 143")
	PORT_DIPSETTING( 0144, "ID 144")   PORT_DIPSETTING( 0145, "ID 145")   PORT_DIPSETTING( 0146, "ID 146")   PORT_DIPSETTING( 0147, "ID 147")
	PORT_DIPSETTING( 0150, "ID 150")   PORT_DIPSETTING( 0151, "ID 151")   PORT_DIPSETTING( 0152, "ID 152")   PORT_DIPSETTING( 0153, "ID 153")
	PORT_DIPSETTING( 0154, "ID 154")   PORT_DIPSETTING( 0155, "ID 155")   PORT_DIPSETTING( 0156, "ID 156")   PORT_DIPSETTING( 0157, "ID 157")
	PORT_DIPSETTING( 0160, "ID 160")   PORT_DIPSETTING( 0161, "ID 161")   PORT_DIPSETTING( 0162, "ID 162")   PORT_DIPSETTING( 0163, "ID 163")
	PORT_DIPSETTING( 0164, "ID 164")   PORT_DIPSETTING( 0165, "ID 165")   PORT_DIPSETTING( 0166, "ID 166")   PORT_DIPSETTING( 0167, "ID 167")
	PORT_DIPSETTING( 0170, "ID 170")   PORT_DIPSETTING( 0171, "ID 171")   PORT_DIPSETTING( 0172, "ID 172")   PORT_DIPSETTING( 0173, "ID 173")
	PORT_DIPSETTING( 0174, "ID 174")   PORT_DIPSETTING( 0175, "ID 175")   PORT_DIPSETTING( 0176, "ID 176")   PORT_DIPSETTING( 0177, "ID 177")
	PORT_DIPSETTING( 0200, "ID 200")   PORT_DIPSETTING( 0201, "ID 201")   PORT_DIPSETTING( 0202, "ID 202")   PORT_DIPSETTING( 0203, "ID 203")
	PORT_DIPSETTING( 0204, "ID 204")   PORT_DIPSETTING( 0205, "ID 205")   PORT_DIPSETTING( 0206, "ID 206")   PORT_DIPSETTING( 0207, "ID 207")
	PORT_DIPSETTING( 0210, "ID 210")   PORT_DIPSETTING( 0211, "ID 211")   PORT_DIPSETTING( 0212, "ID 212")   PORT_DIPSETTING( 0213, "ID 213")
	PORT_DIPSETTING( 0214, "ID 214")   PORT_DIPSETTING( 0215, "ID 215")   PORT_DIPSETTING( 0216, "ID 216")   PORT_DIPSETTING( 0217, "ID 217")
	PORT_DIPSETTING( 0220, "ID 220")   PORT_DIPSETTING( 0221, "ID 221")   PORT_DIPSETTING( 0222, "ID 222")   PORT_DIPSETTING( 0223, "ID 223")
	PORT_DIPSETTING( 0224, "ID 224")   PORT_DIPSETTING( 0225, "ID 225")   PORT_DIPSETTING( 0226, "ID 226")   PORT_DIPSETTING( 0227, "ID 227")
	PORT_DIPSETTING( 0230, "ID 230")   PORT_DIPSETTING( 0231, "ID 231")   PORT_DIPSETTING( 0232, "ID 232")   PORT_DIPSETTING( 0233, "ID 233")
	PORT_DIPSETTING( 0234, "ID 234")   PORT_DIPSETTING( 0235, "ID 235")   PORT_DIPSETTING( 0236, "ID 236")   PORT_DIPSETTING( 0237, "ID 237")
	PORT_DIPSETTING( 0240, "ID 240")   PORT_DIPSETTING( 0241, "ID 241")   PORT_DIPSETTING( 0242, "ID 242")   PORT_DIPSETTING( 0243, "ID 243")
	PORT_DIPSETTING( 0244, "ID 244")   PORT_DIPSETTING( 0245, "ID 245")   PORT_DIPSETTING( 0246, "ID 246")   PORT_DIPSETTING( 0247, "ID 247")
	PORT_DIPSETTING( 0250, "ID 250")   PORT_DIPSETTING( 0251, "ID 251")   PORT_DIPSETTING( 0252, "ID 252")   PORT_DIPSETTING( 0253, "ID 253")
	PORT_DIPSETTING( 0254, "ID 254")   PORT_DIPSETTING( 0255, "ID 255")   PORT_DIPSETTING( 0256, "ID 256")   PORT_DIPSETTING( 0257, "ID 257")
	PORT_DIPSETTING( 0260, "ID 260")   PORT_DIPSETTING( 0261, "ID 261")   PORT_DIPSETTING( 0262, "ID 262")   PORT_DIPSETTING( 0263, "ID 263")
	PORT_DIPSETTING( 0264, "ID 264")   PORT_DIPSETTING( 0265, "ID 265")   PORT_DIPSETTING( 0266, "ID 266")   PORT_DIPSETTING( 0267, "ID 267")
	PORT_DIPSETTING( 0270, "ID 270")   PORT_DIPSETTING( 0271, "ID 271")   PORT_DIPSETTING( 0272, "ID 272")   PORT_DIPSETTING( 0273, "ID 273")
	PORT_DIPSETTING( 0274, "ID 274")   PORT_DIPSETTING( 0275, "ID 275")   PORT_DIPSETTING( 0276, "ID 276")   PORT_DIPSETTING( 0277, "ID 277")
	PORT_DIPSETTING( 0300, "ID 300")   PORT_DIPSETTING( 0301, "ID 301")   PORT_DIPSETTING( 0302, "ID 302")   PORT_DIPSETTING( 0303, "ID 303")
	PORT_DIPSETTING( 0304, "ID 304")   PORT_DIPSETTING( 0305, "ID 305")   PORT_DIPSETTING( 0306, "ID 306")   PORT_DIPSETTING( 0307, "ID 307")
	PORT_DIPSETTING( 0310, "ID 310")   PORT_DIPSETTING( 0311, "ID 311")   PORT_DIPSETTING( 0312, "ID 312")   PORT_DIPSETTING( 0313, "ID 313")
	PORT_DIPSETTING( 0314, "ID 314")   PORT_DIPSETTING( 0315, "ID 315")   PORT_DIPSETTING( 0316, "ID 316")   PORT_DIPSETTING( 0317, "ID 317")
	PORT_DIPSETTING( 0320, "ID 320")   PORT_DIPSETTING( 0321, "ID 321")   PORT_DIPSETTING( 0322, "ID 322")   PORT_DIPSETTING( 0323, "ID 323")
	PORT_DIPSETTING( 0324, "ID 324")   PORT_DIPSETTING( 0325, "ID 325")   PORT_DIPSETTING( 0326, "ID 326")   PORT_DIPSETTING( 0327, "ID 327")
	PORT_DIPSETTING( 0330, "ID 330")   PORT_DIPSETTING( 0331, "ID 331")   PORT_DIPSETTING( 0332, "ID 332")   PORT_DIPSETTING( 0333, "ID 333")
	PORT_DIPSETTING( 0334, "ID 334")   PORT_DIPSETTING( 0335, "ID 335")   PORT_DIPSETTING( 0336, "ID 336")   PORT_DIPSETTING( 0337, "ID 337")
	PORT_DIPSETTING( 0340, "ID 340")   PORT_DIPSETTING( 0341, "ID 341")   PORT_DIPSETTING( 0342, "ID 342")   PORT_DIPSETTING( 0343, "ID 343")
	PORT_DIPSETTING( 0344, "ID 344")   PORT_DIPSETTING( 0345, "ID 345")   PORT_DIPSETTING( 0346, "ID 346")   PORT_DIPSETTING( 0347, "ID 347")
	PORT_DIPSETTING( 0350, "ID 350")   PORT_DIPSETTING( 0351, "ID 351")   PORT_DIPSETTING( 0352, "ID 352")   PORT_DIPSETTING( 0353, "ID 353")
	PORT_DIPSETTING( 0354, "ID 354")   PORT_DIPSETTING( 0355, "ID 355")   PORT_DIPSETTING( 0356, "ID 356")   PORT_DIPSETTING( 0357, "ID 357")
	PORT_DIPSETTING( 0360, "ID 360")   PORT_DIPSETTING( 0361, "ID 361")   PORT_DIPSETTING( 0362, "ID 362")   PORT_DIPSETTING( 0363, "ID 363")
	PORT_DIPSETTING( 0364, "ID 364")   PORT_DIPSETTING( 0365, "ID 365")   PORT_DIPSETTING( 0366, "ID 366")   PORT_DIPSETTING( 0367, "ID 367")
	PORT_DIPSETTING( 0370, "ID 370")   PORT_DIPSETTING( 0371, "ID 371")   PORT_DIPSETTING( 0372, "ID 372")   PORT_DIPSETTING( 0373, "ID 373")
	PORT_DIPSETTING( 0374, "ID 374")   PORT_DIPSETTING( 0375, "ID 375")
INPUT_PORTS_END

/* ROM */
ROM_START( alto2 )
	// dummy region for the maincpu - this is not used in any way
	ROM_REGION( 0400, "maincpu", 0 )
	ROM_FILL(0, 0400, ALTO2_UCODE_INVERTED)
ROM_END

//**************************************************************************
//  ADDRESS MAPS
//**************************************************************************

void alto2_state::alto2_ucode_map(address_map &map)
{
	map(0, 4*ALTO2_UCODE_PAGE_SIZE-1).m(m_maincpu, FUNC(alto2_cpu_device::ucode_map));
}

void alto2_state::alto2_const_map(address_map &map)
{
	map(0, ALTO2_CONST_SIZE-1).m(m_maincpu, FUNC(alto2_cpu_device::const_map));
}

void alto2_state::alto2_iomem_map(address_map &map)
{
	map(0, 2*ALTO2_RAM_SIZE-1).m(m_maincpu, FUNC(alto2_cpu_device::iomem_map));
}

MACHINE_CONFIG_START(alto2_state::alto2)
	// Basic machine hardware
	// SYSCLK is Display Control part A51 (tagged 29.4MHz) divided by 5(?)
	// 5.8MHz according to de.wikipedia.org/wiki/Xerox_Alto
	MCFG_DEVICE_ADD("maincpu", ALTO2, XTAL(29'491'200)/5)
	MCFG_DEVICE_PROGRAM_MAP(alto2_ucode_map)
	MCFG_DEVICE_DATA_MAP(alto2_const_map)
	MCFG_DEVICE_IO_MAP(alto2_iomem_map)

	// Video hardware
	MCFG_SCREEN_ADD_MONOCHROME("screen", RASTER, rgb_t::white())
	MCFG_SCREEN_RAW_PARAMS(XTAL(20'160'000),
			 A2_DISP_TOTAL_WIDTH, 0, A2_DISP_WIDTH,
			 A2_DISP_TOTAL_HEIGHT, 0, A2_DISP_HEIGHT)
	// Two interlaced fields at 60Hz => 30Hz frame rate
	MCFG_SCREEN_REFRESH_RATE(30)
	MCFG_SCREEN_UPDATE_DEVICE("maincpu", alto2_cpu_device, screen_update)
	MCFG_SCREEN_PALETTE("palette")

	MCFG_DEFAULT_LAYOUT( layout_vertical )

	MCFG_PALETTE_ADD_MONOCHROME("palette")

	// Sound hardware
	MCFG_SPEAKER_STANDARD_MONO("mono")
	MCFG_DEVICE_ADD("speaker", SPEAKER_SOUND)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80)

	MCFG_DIABLO_DRIVES_ADD()
MACHINE_CONFIG_END

/* Driver Init */

DRIVER_INIT_MEMBER( alto2_state, alto2 )
{
	// Make the diablo drives known to the CPU core
	alto2_cpu_device* cpu = downcast<alto2_cpu_device *>(m_maincpu.target());
	cpu->set_diablo(0, downcast<diablo_hd_device *>(machine().device(DIABLO_HD_0)));
	cpu->set_diablo(1, downcast<diablo_hd_device *>(machine().device(DIABLO_HD_1)));
	cpu->set_speaker(m_speaker);
	// Create a timer which fires twice per frame, once for each field
	m_vblank_timer = timer_alloc(TIMER_VBLANK);
	m_vblank_timer->adjust(attotime::from_hz(2*30),0,attotime::from_hz(30*2));
}

void alto2_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
	alto2_cpu_device* cpu = downcast<alto2_cpu_device *>(m_maincpu.target());
	switch (id) {
	case TIMER_VBLANK:
		cpu->screen_vblank();
		break;
	}
}

/* Game Drivers */

//    YEAR  NAME    PARENT  COMPAT  MACHINE  INPUT  CLASS        INIT   COMPANY  FULLNAME   FLAGS
COMP( 1977, alto2,  0,      0,      alto2,   alto2, alto2_state, alto2, "Xerox", "Alto-II", 0 )