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r26584 Wednesday 11th December, 2013 at 03:46:20 UTC by R. Belmont
(MESS) itt3030: preliminary keyboard matrix hookup, fixed text drawing [R. Belmont]
[src/mess/drivers]itt3030.c

trunk/src/mess/drivers/itt3030.c
r26583r26584
55   
66   ToDo:
77   - Check Beeper
8   - hook up keyboard
8   - finish hooking up keyboard
99   - According to the manual, the keyboard is based on a 8278 ... it's nowhere to be found. The keyboard / video card has a 8741 instead of which a ROM dump exists
10   - memory map
1110   - serial port
1211   - daisy chain
1312   - ...
r26583r26584
216215      , m_floppy0(*this, "fdc:0")
217216      , m_floppy1(*this, "fdc:1")
218217      , m_beep(*this, "beeper")
218      , m_keyrow1(*this, "ROW1")
219      , m_keyrow2(*this, "ROW2")
220      , m_keyrow3(*this, "ROW3")
221      , m_keyrow4(*this, "ROW4")
222      , m_keyrow5(*this, "ROW5")
223      , m_keyrow6(*this, "ROW6")
224      , m_keyrow7(*this, "ROW7")
225      , m_keyrow8(*this, "ROW8")
226      , m_keyrow9(*this, "ROW9")
227      , m_keyrow10(*this, "ROW10")
228      , m_keyrow11(*this, "ROW11")
229      , m_keyrow12(*this, "ROW12")
230      , m_keyrow13(*this, "ROW13")
231      , m_keyrow14(*this, "ROW14")
232      , m_keyrow15(*this, "ROW15")
233      , m_keyrow16(*this, "ROW16")
219234      , m_vram(*this, "vram")
220235   { }
221236
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230245   required_device<floppy_connector> m_floppy1;
231246   required_device<beep_device> m_beep;
232247
248   required_ioport m_keyrow1, m_keyrow2, m_keyrow3, m_keyrow4, m_keyrow5, m_keyrow6, m_keyrow7, m_keyrow8, m_keyrow9;
249   required_ioport m_keyrow10, m_keyrow11, m_keyrow12, m_keyrow13, m_keyrow14, m_keyrow15, m_keyrow16;
250
233251   // shared pointers
234252   required_shared_ptr<UINT8> m_vram;
235253
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259277private:
260278   UINT8 m_unk;
261279   UINT8 m_bank;
262   UINT8 m_kbdrow, m_kbdcol, m_kbdclk;
280   UINT8 m_kbdrow, m_kbdcol, m_kbdclk, m_kbdread;
263281};
264282
265283void itt3030_state::video_start()
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323341
324342UINT32 itt3030_state::screen_update( screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
325343{
326   //address_space &space = m_maincpu->space(AS_PROGRAM);
327
328344   for(int y = 0; y < 24; y++ )
329345   {
330346      for(int x = 0; x < 80; x++ )
331347      {
332         UINT8 code = m_vram[0x3000 + x + y*128];
348         UINT8 code = m_vram[x + y*128];
333349         drawgfx_opaque(bitmap, cliprect, machine().gfx[0],  code , 0, 0,0, x*8,y*16);
334350      }
335351   }
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349365
350366static ADDRESS_MAP_START( lower48_map, AS_PROGRAM, 8, itt3030_state )
351367   AM_RANGE(0x00000, 0x7ffff) AM_READWRITE(bankl_r, bankl_w)   // pages 0-7
352//  AM_RANGE(0x00000, 0x7ffff) AM_DEVREADWRITE("mainram", ram_device, read, write)   // should work in theory, but compiler blows up spectacularly?
353368   AM_RANGE(0x80000, 0x807ff) AM_ROM AM_REGION("maincpu", 0)   // begin "page 8"
354369   AM_RANGE(0x80800, 0x80fff) AM_ROM AM_REGION("maincpu", 0)
355370   AM_RANGE(0x81000, 0x810ff) AM_RAM AM_MIRROR(0x100)   // only 256 bytes, but ROM also clears 11xx?
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374389
375390READ8_MEMBER(itt3030_state::kbd_matrix_r)
376391{
377   return 0;
392   return m_kbdread;
378393}
379394
380395WRITE8_MEMBER(itt3030_state::kbd_matrix_w)
381396{
397   ioport_port *ports[16] = { m_keyrow1, m_keyrow2, m_keyrow3, m_keyrow4, m_keyrow5, m_keyrow6, m_keyrow7, m_keyrow8, m_keyrow9,
398                        m_keyrow10, m_keyrow11, m_keyrow12, m_keyrow13, m_keyrow14, m_keyrow15, m_keyrow16 };
399   int col_masks[8] = { 1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80 };
400   int tmp_read;
401
382402   m_kbdrow = data & 0xf;
383403   m_kbdcol = (data >> 4) & 0x7;
404
405   if ((data & 0x80) && (!m_kbdclk))
406   {
407      tmp_read = ports[m_kbdrow]->read() & col_masks[m_kbdcol];
408      m_kbdread = (tmp_read != 0) ? 1 : 0;
409   }
410
384411   m_kbdclk = (data & 0x80) ? 1 : 0;
385412}
386413
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388415// Port 1 goes to the keyboard matrix. 
389416// bits 0-3 select matrix rows, bits 4-6 choose column to read, bit 7 clocks the process (rising edge strobes the row, falling edge reads the data)
390417// T0 is the key matrix return
391// Port 2 bit 2 is IRQ (in or out?)
418// Port 2 bit 2 is shown as "IRQ" on the schematics, and the code does a lot with it as well (debug?)
392419static ADDRESS_MAP_START( kbdmcu_io, AS_IO, 8, itt3030_state )
393420   AM_RANGE(MCS48_PORT_T0, MCS48_PORT_T0) AM_READ(kbd_matrix_r)
394421   AM_RANGE(MCS48_PORT_P1, MCS48_PORT_P1) AM_WRITE(kbd_matrix_w)
422   AM_RANGE(MCS48_PORT_P2, MCS48_PORT_P2) AM_NOP AM_WRITENOP
395423ADDRESS_MAP_END
396424
397425static INPUT_PORTS_START( itt3030 )
398   PORT_START("COL0")
426   PORT_START("ROW1")
399427   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL)
400428   PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
401429   PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
402430   PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Shift Lock") PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE
403431   PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
404432
405   PORT_START("COL1")
433   PORT_START("ROW2")
406434   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1))
407435   PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"')
408436   PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
409437   PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
410438   PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
439
440   PORT_START("ROW3")
441   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2))
442   PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')   // actually UK pound symbol
443   PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
444   PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
445   PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
446
447   PORT_START("ROW4")
448   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3))
449   PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
450   PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
451   PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
452   PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
453
454   PORT_START("ROW5")
455   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4))
456   PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
457   PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
458   PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
459   PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
460
461   PORT_START("ROW6")
462   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5))
463   PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
464   PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
465   PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
466   PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
467
468   PORT_START("ROW7")
469   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F6") PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6))
470   PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('/')
471   PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
472   PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
473   PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
474
475   PORT_START("ROW8")
476   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F7") PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7))
477   PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
478   PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
479   PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
480   PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
481
482   PORT_START("ROW9")
483   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F8") PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8))
484   PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
485   PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
486   PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
487   PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR(';')
488
489   PORT_START("ROW10")
490   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_F9)
491   PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('=')
492   PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
493   PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
494   PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR(':')
495
496   PORT_START("ROW11")
497   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_F10)
498   PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('@') PORT_CHAR('?')
499   PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('<') PORT_CHAR('>')
500   PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR('[') PORT_CHAR('{')
501   PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('-') PORT_CHAR('`')
502
503   PORT_START("ROW12")
504   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Esc") PORT_CODE(KEYCODE_F11) PORT_CHAR(27)                                   
505   PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('/') PORT_CHAR('\\')
506   PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('+') PORT_CHAR('*')
507   PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(']') PORT_CHAR('}')
508   PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_MAMEKEY(RSHIFT))
509
510   PORT_START("ROW13")
511   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("(R)") PORT_CODE(KEYCODE_F12) PORT_CHAR('=')
512   PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('~')
513   PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
514   PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_CHAR('^')   // PC doesn't have 3 keys to the right of L, so we sub DEL for the 3rd one
515   PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
516
517   PORT_START("ROW14")
518   PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("(CL)") PORT_CODE(KEYCODE_F13) PORT_CHAR(4)   // produces control-D always
519   PORT_BIT(0x001e, IP_ACTIVE_HIGH, IPT_UNUSED)
520
521   PORT_START("ROW15")
522   PORT_BIT(0x001f, IP_ACTIVE_HIGH, IPT_UNUSED)
523
524   PORT_START("ROW16")
525   PORT_BIT(0x001f, IP_ACTIVE_HIGH, IPT_UNUSED)
411526INPUT_PORTS_END
412527
413528static const gfx_layout charlayout =
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429544
430545void itt3030_state::machine_start()
431546{
547   save_item(NAME(m_unk));
548   save_item(NAME(m_bank));
549   save_item(NAME(m_kbdrow));
550   save_item(NAME(m_kbdcol));
551   save_item(NAME(m_kbdclk));
552   save_item(NAME(m_kbdread));
553
554   m_kbdclk = 0;   // must be initialized here b/c mcs48_reset() causes write of 0xff to all ports
432555}
433556
434557void itt3030_state::machine_reset()
435558{
436559   m_bank = 1;
437560   m_48kbank->set_bank(8);
561   m_kbdread = 1;
562   m_kbdrow = m_kbdcol = 0;
563   m_kbdclk = 1;
438564}
439565
440566FLOPPY_FORMATS_MEMBER( itt3030_state::itt3030_floppy_formats )

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