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r20430 Thursday 24th January, 2013 at 15:06:42 UTC by Curt Coder
(MESS) xerox820: Use ASCII keyboard. (nw)
[src/mess/drivers]xerox820.c
[src/mess/includes]xerox820.h

trunk/src/mess/includes/xerox820.h
r20429r20430
66#include "cpu/z80/z80daisy.h"
77#include "cpu/i86/i86.h"
88#include "machine/com8116.h"
9#include "machine/keyboard.h"
910#include "machine/ram.h"
1011#include "machine/sa1403d.h"
1112#include "machine/scsibus.h"
r20429r20430
7778   DECLARE_READ8_MEMBER( kbpio_pb_r );
7879   DECLARE_WRITE_LINE_MEMBER( intrq_w );
7980   DECLARE_WRITE_LINE_MEMBER( drq_w );
81   DECLARE_WRITE8_MEMBER( kbd_w );
8082
81   void scan_keyboard();
8283   void bankswitch(int bank);
8384   void update_nmi();
8485   void fdc_intrq_w(bool state);
r20429r20430
103104   int m_8n5;                          /* 5.25" / 8" drive select */
104105   int m_400_460;                      /* double sided disk detect */
105106
106   TIMER_DEVICE_CALLBACK_MEMBER(xerox820_keyboard_tick);
107107   TIMER_DEVICE_CALLBACK_MEMBER(ctc_tick);
108108};
109109
trunk/src/mess/drivers/xerox820.c
r20429r20430
3535
3636#include "includes/xerox820.h"
3737
38/* Keyboard HACK */
39
40static const UINT8 xerox820_keycodes[3][9][8] =
41{
42   /* unshifted */
43   {
44   { 0x1e, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37 },
45   { 0x38, 0x39, 0x30, 0x2d, 0x3d, 0x08, 0x7f, 0x2d },
46   { 0x37, 0x38, 0x39, 0x09, 0x71, 0x77, 0x65, 0x72 },
47   { 0x74, 0x79, 0x75, 0x69, 0x6f, 0x70, 0x5b, 0x5d },
48   { 0x1b, 0x2b, 0x34, 0x35, 0x36, 0x61, 0x73, 0x64 },
49   { 0x66, 0x67, 0x68, 0x6a, 0x6b, 0x6c, 0x3b, 0x27 },
50   { 0x0d, 0x0a, 0x01, 0x31, 0x32, 0x33, 0x7a, 0x78 },
51   { 0x63, 0x76, 0x62, 0x6e, 0x6d, 0x2c, 0x2e, 0x2f },
52   { 0x04, 0x02, 0x03, 0x30, 0x2e, 0x20, 0x00, 0x00 }
53   },
54
55   /* shifted */
56   {
57   { 0x1e, 0x21, 0x40, 0x23, 0x24, 0x25, 0x5e, 0x26 },
58   { 0x2a, 0x28, 0x29, 0x5f, 0x2b, 0x08, 0x7f, 0x2d },
59   { 0x37, 0x38, 0x39, 0x09, 0x51, 0x57, 0x45, 0x52 },
60   { 0x54, 0x59, 0x55, 0x49, 0x4f, 0x50, 0x7b, 0x7d },
61   { 0x1b, 0x2b, 0x34, 0x35, 0x36, 0x41, 0x53, 0x44 },
62   { 0x46, 0x47, 0x48, 0x4a, 0x4b, 0x4c, 0x3a, 0x22 },
63   { 0x0d, 0x0a, 0x01, 0x31, 0x32, 0x33, 0x5a, 0x58 },
64   { 0x43, 0x56, 0x42, 0x4e, 0x4d, 0x3c, 0x3e, 0x3f },
65   { 0x04, 0x02, 0x03, 0x30, 0x2e, 0x20, 0x00, 0x00 }
66   },
67
68   /* control */
69   {
70   { 0x9e, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97 },
71   { 0x98, 0x99, 0x90, 0x1f, 0x9a, 0x88, 0xff, 0xad },
72   { 0xb7, 0xb8, 0xb9, 0x89, 0x11, 0x17, 0x05, 0x12 },
73   { 0x14, 0x19, 0x15, 0x09, 0x0f, 0x10, 0x1b, 0x1d },
74   { 0x9b, 0xab, 0xb4, 0xb5, 0xb6, 0x01, 0x13, 0x04 },
75   { 0x06, 0x07, 0x08, 0x0a, 0x0b, 0x0c, 0x7e, 0x60 },
76   { 0x8d, 0x8a, 0x81, 0xb1, 0xb2, 0xb3, 0x1a, 0x18 },
77   { 0x03, 0x16, 0x02, 0x0e, 0x0d, 0x1c, 0x7c, 0x5c },
78   { 0x84, 0x82, 0x83, 0xb0, 0xae, 0x00, 0x00, 0x00 }
79   }
80};
81
82void xerox820_state::scan_keyboard()
83{
84   static const char *const keynames[] = { "ROW0", "ROW1", "ROW2", "ROW3", "ROW4", "ROW5", "ROW6", "ROW7", "ROW8" };
85   int table = 0, row, col;
86   int keydata = -1;
87
88   if (ioport("ROW9")->read() & 0x07)
89   {
90      /* shift, upper case */
91      table = 1;
92   }
93
94   if (ioport("ROW9")->read() & 0x18)
95   {
96      /* ctrl */
97      table = 2;
98   }
99
100   /* scan keyboard */
101   for (row = 0; row < 9; row++)
102   {
103      UINT8 data = ioport(keynames[row])->read();
104
105      for (col = 0; col < 8; col++)
106      {
107         if (!BIT(data, col))
108         {
109            /* latch key data */
110            keydata = ~xerox820_keycodes[table][row][col];
111
112            if (m_keydata != keydata)
113            {
114               m_keydata = keydata;
115
116               /* strobe in keyboard data */
117               m_kbpio->strobe_b(0);
118               m_kbpio->strobe_b(1);
119            }
120         }
121      }
122   }
123
124   m_keydata = keydata;
125}
126
127TIMER_DEVICE_CALLBACK_MEMBER(xerox820_state::xerox820_keyboard_tick)
128{
129   scan_keyboard();
130}
131
13238/* Read/Write Handlers */
13339
13440void xerox820_state::bankswitch(int bank)
r20429r20430
288194/* Input Ports */
289195
290196static INPUT_PORTS_START( xerox820 )
291   PORT_START("ROW0")
292   PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("HELP") PORT_CODE(KEYCODE_TILDE)
293   PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
294   PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@')
295   PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
296   PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
297   PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
298   PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^')
299   PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&')
300
301   PORT_START("ROW1")
302   PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*')
303   PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(')
304   PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')')
305   PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_')
306   PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+')
307   PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BACKSPACE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
308   PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL)
309   PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad -") PORT_CODE(KEYCODE_MINUS_PAD)
310
311   PORT_START("ROW2")
312   PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 7") PORT_CODE(KEYCODE_7_PAD)
313   PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 8") PORT_CODE(KEYCODE_8_PAD)
314   PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 9") PORT_CODE(KEYCODE_9_PAD)
315   PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t')
316   PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
317   PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
318   PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
319   PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
320
321   PORT_START("ROW3")
322   PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
323   PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
324   PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
325   PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
326   PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
327   PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
328   PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{')
329   PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}')
330
331   PORT_START("ROW4")
332   PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
333   PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad +") PORT_CODE(KEYCODE_PLUS_PAD)
334   PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 4") PORT_CODE(KEYCODE_4_PAD)
335   PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 5") PORT_CODE(KEYCODE_5_PAD)
336   PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 6") PORT_CODE(KEYCODE_6_PAD)
337   PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
338   PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
339   PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
340
341   PORT_START("ROW5")
342   PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
343   PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
344   PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
345   PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
346   PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
347   PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
348   PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':')
349   PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"')
350
351   PORT_START("ROW6")
352   PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR('\r')
353   PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("LINE FEED") PORT_CODE(KEYCODE_ENTER_PAD)
354   PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
355   PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 1") PORT_CODE(KEYCODE_1_PAD)
356   PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 2") PORT_CODE(KEYCODE_2_PAD)
357   PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 3") PORT_CODE(KEYCODE_3_PAD)
358   PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
359   PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
360
361   PORT_START("ROW7")
362   PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
363   PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
364   PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
365   PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
366   PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
367   PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
368   PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
369   PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
370
371   PORT_START("ROW8")
372   PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
373   PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_DOWN) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
374   PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
375   PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 0") PORT_CODE(KEYCODE_0_PAD)
376   PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad .") PORT_CODE(KEYCODE_ASTERISK)
377   PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
378   PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD )
379   PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD )
380
381   PORT_START("ROW9")
382   PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE
383   PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("LEFT SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
384   PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("RIGHT SHIFT") PORT_CODE(KEYCODE_RSHIFT)
385   PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("LEFT CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL))
386   PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("RIGHT CTRL") PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_MAMEKEY(RCONTROL))
197   // inputs defined in machine/keyboard.c
387198INPUT_PORTS_END
388199
389200TIMER_CALLBACK_MEMBER( bigboard_state::bigboard_beepoff )
r20429r20430
695506   { 101376, 67584, 46080, 37686, 33792, 16896, 8448, 4224, 2816, 2534, 2112, 1408, 1056, 704, 528, 264 },         /* transmitter divisor ROM */
696507};
697508
509WRITE8_MEMBER( xerox820_state::kbd_w )
510{
511   m_keydata = ~data;
512
513   /* strobe in keyboard data */
514   m_kbpio->strobe_b(0);
515   m_kbpio->strobe_b(1);
516}
517
518static ASCII_KEYBOARD_INTERFACE( keyboard_intf )
519{
520   DEVCB_DRIVER_MEMBER(xerox820_state, kbd_w)
521};
522
698523/* Video */
699524
700525void xerox820_state::video_start()
r20429r20430
873698   MCFG_SCREEN_RAW_PARAMS(XTAL_10_69425MHz, 700, 0, 560, 260, 0, 240)
874699   MCFG_GFXDECODE(xerox820)
875700
876   /* keyboard */
877   MCFG_TIMER_DRIVER_ADD_PERIODIC("keyboard", xerox820_state, xerox820_keyboard_tick, attotime::from_hz(60))
878   //MCFG_TIMER_DRIVER_ADD_PERIODIC("ctc", xerox820_state, ctc_tick, attotime::from_hz(XTAL_20MHz/8))
879
880701   /* devices */
881702   MCFG_Z80SIO0_ADD(Z80SIO_TAG, XTAL_20MHz/8, sio_intf)
882703   MCFG_Z80PIO_ADD(Z80PIO_KB_TAG, XTAL_20MHz/8, xerox820_kbpio_intf)
883704   MCFG_Z80PIO_ADD(Z80PIO_GP_TAG, XTAL_20MHz/8, gppio_intf)
884705   MCFG_Z80CTC_ADD(Z80CTC_TAG, XTAL_20MHz/8, ctc_intf)
706   //MCFG_TIMER_DRIVER_ADD_PERIODIC("ctc", xerox820_state, ctc_tick, attotime::from_hz(XTAL_20MHz/8))
885707   MCFG_FD1771x_ADD(FD1771_TAG, XTAL_20MHz/20)
886708   MCFG_FLOPPY_DRIVE_ADD(FD1771_TAG":0", xerox820_floppies, "sa400", NULL, floppy_image_device::default_floppy_formats)
887709   MCFG_FLOPPY_DRIVE_ADD(FD1771_TAG":1", xerox820_floppies, "sa400", NULL, floppy_image_device::default_floppy_formats)
888710   MCFG_COM8116_ADD(COM8116_TAG, XTAL_5_0688MHz, com8116_intf)
711   MCFG_ASCII_KEYBOARD_ADD(KEYBOARD_TAG, keyboard_intf)
889712
890713   /* internal ram */
891714   MCFG_RAM_ADD(RAM_TAG)
r20429r20430
915738   MCFG_SCREEN_RAW_PARAMS(XTAL_10_69425MHz, 700, 0, 560, 260, 0, 240)
916739   MCFG_GFXDECODE(xerox820ii)
917740
918   /* keyboard */
919   MCFG_TIMER_DRIVER_ADD_PERIODIC("keyboard", xerox820_state, xerox820_keyboard_tick, attotime::from_hz(60))
920   //MCFG_TIMER_DRIVER_ADD_PERIODIC("ctc", xerox820_state, ctc_tick, attotime::from_hz(XTAL_16MHz/4))
921
922741   /* sound hardware */
923742   MCFG_SPEAKER_STANDARD_MONO("mono")
924743   MCFG_SOUND_ADD(SPEAKER_TAG, SPEAKER_SOUND, 0)
r20429r20430
930749   MCFG_Z80PIO_ADD(Z80PIO_GP_TAG, XTAL_16MHz/4, gppio_intf)
931750   MCFG_Z80PIO_ADD(Z80PIO_RD_TAG, XTAL_20MHz/8, rdpio_intf)
932751   MCFG_Z80CTC_ADD(Z80CTC_TAG, XTAL_16MHz/4, ctc_intf)
752   //MCFG_TIMER_DRIVER_ADD_PERIODIC("ctc", xerox820_state, ctc_tick, attotime::from_hz(XTAL_16MHz/4))
933753   MCFG_FD1797x_ADD(FD1797_TAG, XTAL_16MHz/8)
934754   MCFG_FLOPPY_DRIVE_ADD(FD1797_TAG":0", xerox820_floppies, "sa450", NULL, floppy_image_device::default_floppy_formats)
935755   MCFG_FLOPPY_DRIVE_ADD(FD1797_TAG":1", xerox820_floppies, "sa450", NULL, floppy_image_device::default_floppy_formats)
936756   MCFG_COM8116_ADD(COM8116_TAG, XTAL_5_0688MHz, com8116_intf)
757   MCFG_ASCII_KEYBOARD_ADD(KEYBOARD_TAG, keyboard_intf)
937758
938759   // SASI bus
939760   MCFG_SCSIBUS_ADD(SASIBUS_TAG)

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