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r19087 Wednesday 21st November, 2012 at 10:55:53 UTC by Jonathan Gevaryahu
(MESS) APC: Fixed a few missing keys (a few are still missing though),
and hooked the rtc clock, command and strobe lines up in a plausible
configuration. The status line clock now works though shows an invalid
value for year (the upd1990a didn't have a year response, so perhaps
whatever rtc is being used here is a later variant which does store a
year). The "date set" command doesn't work properly and doesn't even seem
to poke the rtc at all. Needs further investigation. [Lord Nightmare]
[src/mess/drivers]apc.c

trunk/src/mess/drivers/apc.c
r19086r19087
423423/* TODO: bit arrangement is completely wrong */
424424READ8_MEMBER(apc_state::apc_rtc_r)
425425{
426   //fprintf(stderr, "RTC Read: %d\n", m_rtc->data_out_r());
426427   return m_rtc->data_out_r();
427428}
428429
429430WRITE8_MEMBER(apc_state::apc_rtc_w)
430431{
431   m_rtc->data_in_w(BIT(data, 0));
432   m_rtc->stb_w(BIT(data, 1));
433   m_rtc->clk_w(BIT(data, 2));
434   m_rtc->oe_w(BIT(data, 3));
435   m_rtc->c0_w(BIT(data, 3));
436   m_rtc->c1_w(BIT(data, 4));
437   m_rtc->c2_w(BIT(data, 5));
432/*
433RTC write: 0x01 0001
434RTC write: 0x03 0011
435RTC write: 0x0b 1011 <- cmd: read clock to shifter latch
436RTC write: 0x03 0011
437RTC write: 0x01 0001
438RTC write: 0x09 1001 <- cmd: begin shifting latch data out
439RTC write: 0x01 0001
440RTC write: 0x11
441RTC write: 0x01
442RTC write: 0x11
443RTC write: 0x01
444RTC write: 0x11
445...
446
447RTC write bits: 76543210
448                |||||||\- c0 (or OE?)
449                ||||||\-- c1
450                |||||\--- c2
451                ||||\---- STB
452                |||\----- CLK
453                ||\------ DATA_IN
454                |\------- ?
455                \-------- ?
456*/
457   if (data&0xE0) fprintf(stderr,"RTC write: 0x%02x\n", data);
458   m_rtc->c0_w(BIT(data, 0)); // correct assuming theres a delay for changing command lines before stb
459   m_rtc->c1_w(BIT(data, 1)); // "
460   m_rtc->c2_w(BIT(data, 2)); // "
461   m_rtc->stb_w(BIT(data, 3)); // seems correct assuming delay for changing command line
462   m_rtc->clk_w(BIT(data, 4)); // correct for sure
463   m_rtc->data_in_w(BIT(data, 5)); // ? no idea about this.
464   m_rtc->oe_w(1);
438465}
439466
440467static ADDRESS_MAP_START( apc_map, AS_PROGRAM, 16, apc_state )
r19086r19087
496523   PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x37)
497524
498525   PORT_START("KEY1")
499   PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('0') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x38)
500   PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('1') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x39)
526   PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x38)
527   PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x39)
501528
502529   PORT_START("KEY2")
503530   PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x41)
r19086r19087
532559   PORT_START("KEY5")
533560   PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x59)
534561   PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x5a)
535   PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("[ / {") PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x5b)
536   PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("\\ / |") PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x5c)
537   PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("] / }") PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x5d)
562   PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("[ / {") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x5b)
563   PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("\\ / |") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x5c)
564   PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("] / }") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x5d)
538565   PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("(up score) / ^") PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x5e)
539   PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("- / _") PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x5f)
566   PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("- / _") PORT_CODE(KEYCODE_MINUS) PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x5f)
540567//   PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("unk6") PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x26)
541568
542569   PORT_START("KEY6")
543570   PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x20)
544   PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("; / :") PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x3a)
545   PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("= / +") PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x2d)
546   PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("' / ~") PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x40)
547   PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("' / \"") PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x3b)
548   PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("' / \"") PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x3b)
571   PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("; / :") PORT_CODE(KEYCODE_COLON) PORT_CHAR(':') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x3a)
572   PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("= / +") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x2d)
573   PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("` / ~") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x40)
574   PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("' / \"") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x3b)
575   PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(", / <") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x2c)
576   PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(". / >") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x2e)
577   PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("/ / ?") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0x2f)
549578
579
550580/*
551581;
552582; Special table for screwed-up keys.  Scan codes are converted.
r19086r19087
698728   PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("ENTER (PAD)") PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(0x0d) PORT_IMPULSE(1) PORT_CHANGED_MEMBER(DEVICE_SELF, apc_state, key_stroke, 0xfd)
699729
700730   PORT_START("KEY_MOD")
701   PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT)
731   PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT)
702732   PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CAPS LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE
703733INPUT_PORTS_END
704734

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