summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/mz700.cpp
blob: 038828de3692b85866eeacbdb072e265e25a7f02 (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
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
// license:GPL-2.0+
// copyright-holders:Juergen Buchmueller, Dirk Best
/******************************************************************************
 *  Sharp MZ700
 *
 *  Reference: http://sharpmz.computingmuseum.com
 *
 *  MZ700 memory map
 *
 *  0000-0FFF   1Z-013A ROM or RAM
 *  1000-CFFF   RAM
 *  D000-D7FF   videoram or RAM
 *  D800-DFFF   colorram or RAM
 *  E000-FFFF   memory mapped IO or RAM
 *
 *      xxx0    PPI8255 port A (output)
 *              bit 7   556RST (reset NE556)
 *              bit 6-4 unused
 *              bit 3-0 keyboard row demux (LS145)
 *
 *      xxx1    PPI8255 port B (input)
 *              bit 7-0 keyboard matrix code
 *
 *      xxx2    PPI8255 port C (input/output)
 *              bit 7 R -VBLANK input
 *              bit 6 R 556OUT (1.5Hz)
 *              bit 5 R RDATA from cassette
 *              bit 4 R MOTOR from cassette
 *              bit 3 W M-ON control
 *              bit 2 W INTMASK 1=enable 0=disabel clock interrupt
 *              bit 1 W WDATA to cassette
 *              bit 0 W unused
 *
 *      xxx3    PPI8255 control
 *
 *      xxx4    PIT8253 timer 0 (clock input 1,108800 MHz)
 *      xxx5    PIT8253 timer 1 (clock input 15,611 kHz)
 *      xxx6    PIT8253 timer 2 (clock input OUT1 1Hz (default))
 *      xxx7    PIT8253 control/status
 *
 *      xxx8    bit 7 R -HBLANK
 *              bit 6 R unused
 *              bit 5 R unused
 *              bit 4 R joystick JB2
 *              bit 3 R joystick JB1
 *              bit 2 R joystick JA2
 *              bit 1 R joystick JA1
 *              bit 0 R NE556 OUT (32Hz IC BJ)
 *                    W gate0 of PIT8253 (sound enable)
 *
 *  MZ800 memory map
 *
 *  0000-0FFF   ROM or RAM
 *  1000-1FFF   PCG ROM or RAM
 *  2000-7FFF   RAM
 *  8000-9FFF   videoram or RAM
 *  A000-BFFF   videoram or RAM
 *  C000-CFFF   PCG RAM or RAM
 *  D000-DFFF   videoram or RAM
 *  E000-FFFF   memory mapped IO or RAM
 *
 *  ToDo:
    - slows down while making sound
    - MZ800:
      - Port CF not done.
      - Dips not connected.
      - MZ800-mode display not working /Hi-res not coded.
      - The CRTC is a very complex custom device, mostly unemulated.
    - MZ1500:
      - Various ports not done.
      - Floppy disk and quick disk not done.
      - F4 display is blank.
      - Need manuals.

  Note: MZ800 hardware starts in memory map (mode A), but switches to MZ700
  compatibility mode (mode B) as soon as it starts up. We start in Mode B
  because it helps MZ1500 get started and it doesn't break anything.

*
 *****************************************************************************/

#include "emu.h"
#include "includes/mz700.h"

#include "cpu/z80/z80.h"
#include "sound/sn76496.h"

#include "softlist.h"
#include "speaker.h"

#include "formats/mz_cas.h"


/***************************************************************************
    TIMER DEVICE CALLBACKS
***************************************************************************/

TIMER_DEVICE_CALLBACK_MEMBER(mz_state::ne556_cursor_callback)
{
	m_cursor_bit ^= 1;
}

TIMER_DEVICE_CALLBACK_MEMBER(mz_state::ne556_other_callback)
{
	m_other_timer ^= 1;
}


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

void mz_state::mz700_mem(address_map &map)
{
	map(0x0000, 0x0fff).bankr("bankr0").bankw("bankw0");
	map(0x1000, 0xcfff).ram();
	map(0xd000, 0xdfff).bankrw("bankd");
	map(0xe000, 0xffff).m(m_banke, FUNC(address_map_bank_device::amap8));
}

void mz_state::mz700_banke(address_map &map)
{
	// bank 0: ram (mz700_bank1)
	map(0x0000, 0x1fff).ram();
	// bank 1: devices (mz700_bank3)
	map(0x2000, 0x2003).mirror(0x1ff0).rw(m_ppi, FUNC(i8255_device::read), FUNC(i8255_device::write));
	map(0x2004, 0x2007).mirror(0x1ff0).rw(m_pit, FUNC(pit8253_device::read), FUNC(pit8253_device::write));
	map(0x2008, 0x200b).mirror(0x1ff0).rw(FUNC(mz_state::mz700_e008_r), FUNC(mz_state::mz700_e008_w));
	map(0x200c, 0x200f).mirror(0x1ff0).noprw();
	// bank 2: switched out (mz700_bank5)
	map(0x4000, 0x5fff).noprw();
}

void mz_state::mz700_io(address_map &map)
{
	map.global_mask(0xff);
	map(0xe0, 0xe0).w(FUNC(mz_state::mz700_bank_0_w));
	map(0xe1, 0xe1).w(FUNC(mz_state::mz700_bank_1_w));
	map(0xe2, 0xe2).w(FUNC(mz_state::mz700_bank_2_w));
	map(0xe3, 0xe3).w(FUNC(mz_state::mz700_bank_3_w));
	map(0xe4, 0xe4).w(FUNC(mz_state::mz700_bank_4_w));
	map(0xe5, 0xe5).w(FUNC(mz_state::mz700_bank_5_w));
	map(0xe6, 0xe6).w(FUNC(mz_state::mz700_bank_6_w));
}

void mz_state::mz800_mem(address_map &map)
{
	map(0x0000, 0x0fff).bankr("bankr0").bankw("bankw0");
	map(0x1000, 0x1fff).bankrw("bank1");
	map(0x2000, 0x7fff).ram();
	map(0x8000, 0xbfff).bankrw("banka");
	map(0xc000, 0xcfff).bankrw("bankc");
	map(0xd000, 0xdfff).bankrw("bankd");
	map(0xe000, 0xffff).m(m_bankf, FUNC(address_map_bank_device::amap8));
}

void mz_state::mz800_bankf(address_map &map)
{
	// bank 0: ram (mz700_bank1)
	map(0x0000, 0x1fff).ram();
	// bank 1: devices (mz700_bank3)
	map(0x2000, 0x2003).rw(m_ppi, FUNC(i8255_device::read), FUNC(i8255_device::write));
	map(0x2004, 0x2007).rw(m_pit, FUNC(pit8253_device::read), FUNC(pit8253_device::write));
	map(0x2008, 0x200b).rw(FUNC(mz_state::mz700_e008_r), FUNC(mz_state::mz700_e008_w));
	map(0x200c, 0x200f).noprw();
	map(0x2010, 0x3fff).rom().region("monitor", 0x2010);
	// bank 2: switched out (mz700_bank5)
	map(0x4000, 0x5fff).noprw();
}

void mz_state::mz800_io(address_map &map)
{
	map.global_mask(0xff);
	map(0xcc, 0xcc).w(FUNC(mz_state::mz800_write_format_w));
	map(0xcd, 0xcd).w(FUNC(mz_state::mz800_read_format_w));
	map(0xce, 0xce).rw(FUNC(mz_state::mz800_crtc_r), FUNC(mz_state::mz800_display_mode_w));
	map(0xcf, 0xcf).w(FUNC(mz_state::mz800_scroll_border_w));
	map(0xd0, 0xd3).rw(m_ppi, FUNC(i8255_device::read), FUNC(i8255_device::write));
	map(0xd4, 0xd7).rw(m_pit, FUNC(pit8253_device::read), FUNC(pit8253_device::write));
	map(0xe0, 0xe0).rw(FUNC(mz_state::mz800_bank_0_r), FUNC(mz_state::mz800_bank_0_w));
	map(0xe1, 0xe1).rw(FUNC(mz_state::mz800_bank_1_r), FUNC(mz_state::mz700_bank_1_w));
	map(0xe2, 0xe2).w(FUNC(mz_state::mz700_bank_2_w));
	map(0xe3, 0xe3).w(FUNC(mz_state::mz700_bank_3_w));
	map(0xe4, 0xe4).w(FUNC(mz_state::mz700_bank_4_w));
	map(0xe5, 0xe5).w(FUNC(mz_state::mz700_bank_5_w));
	map(0xe6, 0xe6).w(FUNC(mz_state::mz700_bank_6_w));
	map(0xea, 0xea).rw(FUNC(mz_state::mz800_ramdisk_r), FUNC(mz_state::mz800_ramdisk_w));
	map(0xeb, 0xeb).w(FUNC(mz_state::mz800_ramaddr_w));
	map(0xf0, 0xf0).portr("atari_joy1").w(FUNC(mz_state::mz800_palette_w));
	map(0xf1, 0xf1).portr("atari_joy2");
	map(0xf2, 0xf2).w("sn76489n", FUNC(sn76489_device::write));
	map(0xfc, 0xff).rw("z80pio", FUNC(z80pio_device::read), FUNC(z80pio_device::write));
}

/***************************************************************************
    INPUT PORTS
***************************************************************************/

/* 2008-05 FP:
Notice that there is no Backspace key, only a 'Del' one.

Small note about natural keyboard support: currently,
- "Alpha" is mapped to 'F6'
- "Graph" is mapped to 'F7'
- "Break" is mapped to 'F8'                      */

static INPUT_PORTS_START( mz700 )
	PORT_START("ROW0")
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("CR") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE)         PORT_CHAR(':') PORT_CHAR('*')
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON)         PORT_CHAR(';') PORT_CHAR('+')
	PORT_BIT(0x08, 0x08, IPT_UNUSED )
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_NAME("Alpha") PORT_CODE(KEYCODE_TAB) PORT_CHAR(UCHAR_MAMEKEY(F6))
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_NAME("\xE2\x86\x93  \xC2\xA3") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0xA3) // this one would be 2nd row, 3rd key after 'P'
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("Graph") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(F7))
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_CODE(KEYCODE_PGUP)          PORT_CHAR('_') // this one would be 2nd row, 4th key after 'P'

	PORT_START("ROW1")
	PORT_BIT(0x07, 0x07, IPT_UNUSED )
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH)     PORT_CHAR(']') PORT_CHAR('}')
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE)    PORT_CHAR('[') PORT_CHAR('{')
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE)     PORT_CHAR('@') PORT_CHAR('`')
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z)             PORT_CHAR('z') PORT_CHAR('Z')
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y)             PORT_CHAR('y') PORT_CHAR('Y')

	PORT_START("ROW2")
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_CODE(KEYCODE_X)             PORT_CHAR('x') PORT_CHAR('X')
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_CODE(KEYCODE_W)             PORT_CHAR('w') PORT_CHAR('W')
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_CODE(KEYCODE_V)             PORT_CHAR('v') PORT_CHAR('V')
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_CODE(KEYCODE_U)             PORT_CHAR('u') PORT_CHAR('U')
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_CODE(KEYCODE_T)             PORT_CHAR('t') PORT_CHAR('T')
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_CODE(KEYCODE_S)             PORT_CHAR('s') PORT_CHAR('S')
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_CODE(KEYCODE_R)             PORT_CHAR('r') PORT_CHAR('R')
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q)             PORT_CHAR('q') PORT_CHAR('Q')

	PORT_START("ROW3")
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_CODE(KEYCODE_P)             PORT_CHAR('p') PORT_CHAR('P')
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_CODE(KEYCODE_O)             PORT_CHAR('o') PORT_CHAR('O')
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_CODE(KEYCODE_N)             PORT_CHAR('n') PORT_CHAR('N')
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_CODE(KEYCODE_M)             PORT_CHAR('m') PORT_CHAR('M')
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_CODE(KEYCODE_L)             PORT_CHAR('l') PORT_CHAR('L')
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_CODE(KEYCODE_K)             PORT_CHAR('k') PORT_CHAR('K')
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_CODE(KEYCODE_J)             PORT_CHAR('j') PORT_CHAR('J')
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_CODE(KEYCODE_I)             PORT_CHAR('i') PORT_CHAR('I')

	PORT_START("ROW4")
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_CODE(KEYCODE_H)             PORT_CHAR('h') PORT_CHAR('H')
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_CODE(KEYCODE_G)             PORT_CHAR('g') PORT_CHAR('G')
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_CODE(KEYCODE_F)             PORT_CHAR('f') PORT_CHAR('F')
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_CODE(KEYCODE_E)             PORT_CHAR('e') PORT_CHAR('E')
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_CODE(KEYCODE_D)             PORT_CHAR('d') PORT_CHAR('D')
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_CODE(KEYCODE_C)             PORT_CHAR('c') PORT_CHAR('C')
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_CODE(KEYCODE_B)             PORT_CHAR('b') PORT_CHAR('B')
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_CODE(KEYCODE_A)             PORT_CHAR('a') PORT_CHAR('A')

	PORT_START("ROW5")
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_CODE(KEYCODE_8)             PORT_CHAR('8') PORT_CHAR('(')
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_CODE(KEYCODE_7)             PORT_CHAR('7') PORT_CHAR('\'')
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_CODE(KEYCODE_6)             PORT_CHAR('6') PORT_CHAR('&')
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_CODE(KEYCODE_5)             PORT_CHAR('5') PORT_CHAR('%')
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_CODE(KEYCODE_4)             PORT_CHAR('4') PORT_CHAR('$')
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_CODE(KEYCODE_3)             PORT_CHAR('3') PORT_CHAR('#')
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_CODE(KEYCODE_2)             PORT_CHAR('2') PORT_CHAR('"')
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_CODE(KEYCODE_1)             PORT_CHAR('1') PORT_CHAR('!')

	PORT_START("ROW6")
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP)          PORT_CHAR('.') PORT_CHAR('>')
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA)         PORT_CHAR(',') PORT_CHAR('<')
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_CODE(KEYCODE_9)             PORT_CHAR('9') PORT_CHAR(')')
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_NAME("0  Pi")               PORT_CODE(KEYCODE_0) PORT_CHAR('0')
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE)         PORT_CHAR(' ')
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS)         PORT_CHAR('-') PORT_CHAR('=')
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("\xE2\x86\x91  ~") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('~')
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_CODE(KEYCODE_PGDN)          PORT_CHAR('\\') PORT_CHAR('|')  // this one would be 1st row, 3rd key after '0'

	PORT_START("ROW7")
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("/  \xE2\x86\x90") PORT_CODE(KEYCODE_SLASH)    PORT_CHAR('/')
	PORT_BIT(0x02, 0x02, IPT_KEYBOARD) PORT_NAME("?  \xE2\x86\x92") PORT_CODE(KEYCODE_END)      PORT_CHAR('?')  // this one would be 4th row, 4th key after 'M'
	PORT_BIT(0x04, 0x04, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT)                                  PORT_CHAR(UCHAR_MAMEKEY(LEFT))
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT)                                 PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN)                                  PORT_CHAR(UCHAR_MAMEKEY(DOWN))
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP)                                    PORT_CHAR(UCHAR_MAMEKEY(UP))
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL)                  PORT_CHAR(UCHAR_MAMEKEY(DEL))
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_NAME("INST") PORT_CODE(KEYCODE_INSERT)              PORT_CHAR(UCHAR_MAMEKEY(INSERT))

	PORT_START("ROW8")
	PORT_BIT(0x01, 0x01, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
	PORT_BIT(0x3e, 0x3e, IPT_UNUSED)
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_NAME("Break") PORT_CODE(KEYCODE_HOME)               PORT_CHAR(UCHAR_MAMEKEY(F8))    // this one would be at Backspace position

	PORT_START("ROW9")
	PORT_BIT(0x07, 0x07, IPT_UNUSED)
	PORT_BIT(0x08, 0x08, IPT_KEYBOARD) PORT_CODE(KEYCODE_F5)            PORT_CHAR(UCHAR_MAMEKEY(F5))
	PORT_BIT(0x10, 0x10, IPT_KEYBOARD) PORT_CODE(KEYCODE_F4)            PORT_CHAR(UCHAR_MAMEKEY(F4))
	PORT_BIT(0x20, 0x20, IPT_KEYBOARD) PORT_CODE(KEYCODE_F3)            PORT_CHAR(UCHAR_MAMEKEY(F3))
	PORT_BIT(0x40, 0x40, IPT_KEYBOARD) PORT_CODE(KEYCODE_F2)            PORT_CHAR(UCHAR_MAMEKEY(F2))
	PORT_BIT(0x80, 0x80, IPT_KEYBOARD) PORT_CODE(KEYCODE_F1)            PORT_CHAR(UCHAR_MAMEKEY(F1))

	PORT_START("JOY")
	PORT_BIT(0x01, 0x00, IPT_UNUSED)
	PORT_BIT(0x02, 0x00, IPT_JOYSTICK_UP)       PORT_8WAY
	PORT_BIT(0x04, 0x00, IPT_JOYSTICK_DOWN)     PORT_8WAY
	PORT_BIT(0x08, 0x00, IPT_JOYSTICK_LEFT)     PORT_8WAY
	PORT_BIT(0x10, 0x00, IPT_JOYSTICK_RIGHT)    PORT_8WAY
INPUT_PORTS_END

static INPUT_PORTS_START( mz800 )
	PORT_INCLUDE(mz700)

	PORT_MODIFY("JOY")
	PORT_BIT(0x1f, 0x00, IPT_UNUSED)

	PORT_START("atari_joy1")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP)    PORT_PLAYER(1) PORT_8WAY
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN)  PORT_PLAYER(1) PORT_8WAY
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT)  PORT_PLAYER(1) PORT_8WAY
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_PLAYER(1) PORT_8WAY
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON1)        PORT_PLAYER(1)
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_BUTTON2)        PORT_PLAYER(1)

	PORT_START("atari_joy2")
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP)    PORT_PLAYER(2) PORT_8WAY
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN)  PORT_PLAYER(2) PORT_8WAY
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT)  PORT_PLAYER(2) PORT_8WAY
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_PLAYER(2) PORT_8WAY
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON1)        PORT_PLAYER(2)
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_BUTTON2)        PORT_PLAYER(2)

	PORT_START("system_settings")
	PORT_DIPNAME(0x01, 0x00, "Mode selection")
	PORT_DIPLOCATION("SW:4")
	PORT_DIPSETTING(0x01, "MZ-700")
	PORT_DIPSETTING(0x00, "MZ-800")
	PORT_DIPNAME(0x06, 0x06, "Printer selection")
	PORT_DIPLOCATION("SW:3,2")
	PORT_DIPSETTING(0x06, "MZ printer")
	PORT_DIPSETTING(0x00, "Centronics printer")
	PORT_DIPNAME(0x08, 0x08, "Cassette polarity")
	PORT_DIPLOCATION("SW:1")
	PORT_DIPSETTING(0x08, DEF_STR(Unknown))
	PORT_DIPSETTING(0x00, DEF_STR(Unknown))
INPUT_PORTS_END


/***************************************************************************
    GFX LAYOUT
***************************************************************************/

static const gfx_layout mz700_layout =
{
	8, 8,       /* 8 x 8 graphics */
	512,        /* 512 codes */
	1,      /* 1 bit per pixel */
	{ 0 },      /* no bitplanes */
	{ 7, 6, 5, 4, 3, 2, 1, 0 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	8 * 8       /* code takes 8 times 8 bits */
};

static GFXDECODE_START( gfx_mz700 )
	GFXDECODE_ENTRY("cgrom", 0, mz700_layout, 0, 4)
GFXDECODE_END

static GFXDECODE_START( gfx_mz800 )
	GFXDECODE_ENTRY("monitor", 0x1000, mz700_layout, 0, 4)    // for mz800 viewer only
GFXDECODE_END


/***************************************************************************
    MACHINE DRIVERS
***************************************************************************/

void mz_state::mz700(machine_config &config)
{
	/* basic machine hardware */
	Z80(config, m_maincpu, XTAL(17'734'470)/5);
	m_maincpu->set_addrmap(AS_PROGRAM, &mz_state::mz700_mem);
	m_maincpu->set_addrmap(AS_IO, &mz_state::mz700_io);

	ADDRESS_MAP_BANK(config, "banke").set_map(&mz_state::mz700_banke).set_options(ENDIANNESS_LITTLE, 8, 16, 0x2000);

	MCFG_MACHINE_RESET_OVERRIDE(mz_state, mz700)

	/* video hardware */
	SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
	m_screen->set_raw(XTAL(17'734'470)/2, 568, 0, 40*8, 312, 0, 25*8);
	m_screen->set_screen_update(FUNC(mz_state::screen_update_mz700));
	m_screen->set_palette(m_palette);

	PALETTE(config, m_palette, palette_device::RGB_3BIT);
	GFXDECODE(config, "gfxdecode", m_palette, gfx_mz700);

	/* sound hardware */
	SPEAKER(config, "mono").front_center();
	SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 0.50);

	/* ne556 timers */
	TIMER(config, "cursor").configure_periodic(FUNC(mz_state::ne556_cursor_callback), attotime::from_hz(1.5));
	TIMER(config, "other").configure_periodic(FUNC(mz_state::ne556_other_callback), attotime::from_hz(34.5));

	/* devices */
	PIT8253(config, m_pit, 0);
	m_pit->set_clk<0>(XTAL(17'734'470)/20);
	m_pit->out_handler<0>().set(FUNC(mz_state::pit_out0_changed));
	m_pit->set_clk<1>(15611.0);
	m_pit->out_handler<1>().set(m_pit, FUNC(pit8253_device::write_clk2));
	m_pit->set_clk<2>(0);
	m_pit->out_handler<2>().set(FUNC(mz_state::pit_irq_2));

	I8255(config, m_ppi);
	m_ppi->out_pa_callback().set(FUNC(mz_state::pio_port_a_w));
	m_ppi->in_pb_callback().set(FUNC(mz_state::pio_port_b_r));
	m_ppi->in_pc_callback().set(FUNC(mz_state::pio_port_c_r));
	m_ppi->out_pc_callback().set(FUNC(mz_state::pio_port_c_w));

	TTL74145(config, m_ls145);

	CASSETTE(config, m_cassette);
	m_cassette->set_formats(mz700_cassette_formats);
	m_cassette->set_default_state(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_ENABLED);
	m_cassette->add_route(ALL_OUTPUTS, "mono", 0.05);
	m_cassette->set_interface("mz_cass");

	SOFTWARE_LIST(config, "cass_list").set_original("mz700_cass");

	/* internal ram */
	RAM(config, RAM_TAG).set_default_size("64K");
}


void mz_state::mz800(machine_config &config)
{
	mz700(config);
	config.device_remove("banke");

	/* basic machine hardware */
	m_maincpu->set_addrmap(AS_PROGRAM, &mz_state::mz800_mem);
	m_maincpu->set_addrmap(AS_IO, &mz_state::mz800_io);

	ADDRESS_MAP_BANK(config, "bankf").set_map(&mz_state::mz800_bankf).set_options(ENDIANNESS_LITTLE, 8, 16, 0x2000);

	MCFG_MACHINE_RESET_OVERRIDE(mz_state, mz800)
	subdevice<gfxdecode_device>("gfxdecode")->set_info(gfx_mz800);

	m_screen->set_screen_update(FUNC(mz_state::screen_update_mz800));

	SN76489(config, "sn76489n", XTAL(17'734'470)/5).add_route(ALL_OUTPUTS, "mono", 1.0);

	config.device_remove("cass_list");
	SOFTWARE_LIST(config, "cass_list").set_original("mz800_cass");

	/* devices */
	m_pit->set_clk<0>(XTAL(17'734'470)/16);

	z80pio_device& pio(Z80PIO(config, "z80pio", XTAL(17'734'470)/5));
	pio.out_int_callback().set(FUNC(mz_state::mz800_z80pio_irq));
	pio.in_pa_callback().set(FUNC(mz_state::mz800_z80pio_port_a_r));
	pio.out_pa_callback().set(FUNC(mz_state::mz800_z80pio_port_a_w));
	pio.out_pb_callback().set("cent_data_out", FUNC(output_latch_device::bus_w));

	CENTRONICS(config, m_centronics, centronics_devices, "printer");

	output_latch_device &cent_data_out(OUTPUT_LATCH(config, "cent_data_out"));
	m_centronics->set_output_latch(cent_data_out);
}


/***************************************************************************
    ROM DEFINITIONS
***************************************************************************/

ROM_START( mz700 )
	ROM_REGION( 0x1000, "monitor", 0 )
	ROM_LOAD( "1z-013a.rom", 0x0000, 0x1000, CRC(4c6c6b7b) SHA1(ef8f7399e86c1dc638a5cb83efdb73369c2b5735) )

	ROM_REGION( 0x1000, "cgrom", 0 )
	ROM_LOAD( "mz700fon.int", 0x0000, 0x1000, CRC(42b9e8fb) SHA1(5128ad179a702f8e0bd9910a58bad8fbe4c20167) )
ROM_END

ROM_START( mz700j )
	ROM_REGION( 0x1000, "monitor", 0 )
	ROM_LOAD( "1z-009b.rom", 0x0000, 0x1000, CRC(ab1fbe6f) SHA1(7b10d7965c541393e33a265bcf71a00314d2db7a))

	ROM_REGION( 0x1000, "cgrom", 0 )
	//ROM_LOAD( "mz700fon.jp", 0x0000, 0x1000, CRC(697ec121) SHA1(5eb1d42d273b1fd2cab120486279ab8ff6c85dc7))
	ROM_LOAD( "mz700fon.jpn", 0x0000, 0x1000, CRC(425eedf5) SHA1(bd2cc750f2d2f63e50a59786668509e81a276e32) )
ROM_END

ROM_START( mz800 )
	ROM_REGION( 0x4000, "monitor", 0 )
	ROM_LOAD( "mz800.rom", 0x0000, 0x4000, CRC(600d17e1) SHA1(950ce4b51429916f8036e41ba6130fac149b36e4) )

	ROM_REGION( 0x10000, "user1", ROMREGION_ERASE00 ) // ramdisk
ROM_END

ROM_START( mz1500 )
	ROM_REGION( 0x4000, "monitor", 0 )
	ROM_LOAD( "9z-502m.rom",  0x0000, 0x1000, CRC(643db428) SHA1(c2ad8af2ef00db32afde54d5741b07de5d4da16a))
	ROM_CONTINUE(0x2800, 0x1800)

	ROM_REGION( 0x1000, "cgrom", 0 )
	//ROM_LOAD( "mz700fon.jp", 0x0000, 0x1000, CRC(697ec121) SHA1(5eb1d42d273b1fd2cab120486279ab8ff6c85dc7))
	ROM_LOAD( "mz700fon.jpn", 0x0000, 0x1000, CRC(425eedf5) SHA1(bd2cc750f2d2f63e50a59786668509e81a276e32) )

	ROM_REGION( 0x10000, "user1", ROMREGION_ERASE00 ) // ramdisk
ROM_END

/***************************************************************************
    GAME DRIVERS
***************************************************************************/

//    YEAR  NAME    PARENT  COMPAT  MACHINE  INPUT  CLASS     INIT        COMPANY  FULLNAME          FLAGS
COMP( 1982, mz700,  0,      0,      mz700,   mz700, mz_state, init_mz700, "Sharp", "MZ-700",         0 )
COMP( 1982, mz700j, mz700,  0,      mz700,   mz700, mz_state, init_mz700, "Sharp", "MZ-700 (Japan)", 0 )
COMP( 1984, mz800,  0,      0,      mz800,   mz800, mz_state, init_mz800, "Sharp", "MZ-800",         MACHINE_NOT_WORKING )
COMP( 1984, mz1500, 0,      0,      mz800,   mz800, mz_state, init_mz800, "Sharp", "MZ-1500",        MACHINE_NOT_WORKING )    // Japanese version of the MZ-800