/********************************************************************** Luxor ABC-800 keyboard emulation Copyright MESS Team. Visit http://mamedev.org for licensing and usage restrictions. **********************************************************************/ /* PCB Layout ---------- KTC A65-02201-201K |---------------| |---| CN1 |---------------------------------------------------| | | | LS193 LS374 8048 22-008-03 | | LS13 LS193 22-050-3B 5.9904MHz | | | | | | | | | | | | | | | | | |-----------------------------------------------------------------------| Notes: All IC's shown. 8048 - National Semiconductor INS8048 MCU "8048-132" 22-008-03 - Exar Semiconductor XR22-008-03 keyboard matrix capacitive readout latch 22-050-3B - Exar Semiconductor XR22-050-3B keyboard matrix row driver with 4 to 12 decoder/demultiplexer CN1 - keyboard data connector XR22-008-03 Pinout ------------------ _____ _____ D0 1 |* \_/ | 20 Vcc D1 2 | | 19 _CLR D2 3 | | 18 Q0 D3 4 | | 17 Q1 HYS 5 | 22-008-03 | 16 Q2 D4 6 | | 15 Q3 D5 7 | | 14 Q4 D6 8 | | 13 Q5 D7 9 | | 12 Q6 GND 10 |_____________| 11 Q7 XR22-050-3B Pinout ------------------ _____ _____ Y8 1 |* \_/ | 20 Vcc Y9 2 | | 19 Y7 Y10 3 | | 18 Y6 Y11 4 | | 17 Y5 _STB 5 | 22-050-3B | 16 Y4 A0 6 | | 15 Y3 A1 7 | | 14 Y2 A2 8 | | 13 Y1 A3 9 | | 12 Y0 GND 10 |_____________| 11 OE? */ #include "abc800kb.h" //************************************************************************** // MACROS / CONSTANTS //************************************************************************** #define I8048_TAG "i8048" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** const device_type ABC800_KEYBOARD = &device_creator; //------------------------------------------------- // device_config_complete - perform any // operations now that the configuration is // complete //------------------------------------------------- void abc800_keyboard_device::device_config_complete() { // inherit a copy of the static data const abc800_keyboard_interface *intf = reinterpret_cast(static_config()); if (intf != NULL) *static_cast(this) = *intf; // or initialize to defaults if none provided else { memset(&m_out_clock_cb, 0, sizeof(m_out_clock_cb)); memset(&m_out_keydown_cb, 0, sizeof(m_out_keydown_cb)); } m_shortname = "abc800kb"; } //------------------------------------------------- // ROM( abc800_keyboard ) //------------------------------------------------- ROM_START( abc800_keyboard ) ROM_REGION( 0x400, I8048_TAG, 0 ) ROM_LOAD( "8048-132.z9", 0x0000, 0x0400, CRC(05c4dce5) SHA1(1824c5d304bbd09f97056cfa408e1b18b5219ba2) ) ROM_END //------------------------------------------------- // rom_region - device-specific ROM region //------------------------------------------------- const rom_entry *abc800_keyboard_device::device_rom_region() const { return ROM_NAME( abc800_keyboard ); } //------------------------------------------------- // ADDRESS_MAP( abc800_keyboard_io ) //------------------------------------------------- static ADDRESS_MAP_START( abc800_keyboard_io, AS_IO, 8, abc800_keyboard_device ) AM_RANGE(MCS48_PORT_P1, MCS48_PORT_P1) AM_READWRITE(kb_p1_r, kb_p1_w) AM_RANGE(MCS48_PORT_P2, MCS48_PORT_P2) AM_WRITE(kb_p2_w) AM_RANGE(MCS48_PORT_T1, MCS48_PORT_T1) AM_READ(kb_t1_r) ADDRESS_MAP_END //------------------------------------------------- // MACHINE_DRIVER( abc800_keyboard ) //------------------------------------------------- static MACHINE_CONFIG_FRAGMENT( abc800_keyboard ) MCFG_CPU_ADD(I8048_TAG, I8048, XTAL_5_9904MHz) MCFG_CPU_IO_MAP(abc800_keyboard_io) MACHINE_CONFIG_END //------------------------------------------------- // machine_config_additions - device-specific // machine configurations //------------------------------------------------- machine_config_constructor abc800_keyboard_device::device_mconfig_additions() const { return MACHINE_CONFIG_NAME( abc800_keyboard ); } //------------------------------------------------- // INPUT_PORTS( abc800_keyboard ) //------------------------------------------------- INPUT_PORTS_START( abc800_keyboard ) PORT_START("X0") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CAPS LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Left SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) // 80 PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) // 81 PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) // 82 PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) // 83 PORT_START("X1") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad -") PORT_CODE(KEYCODE_MINUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(MINUS_PAD)) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad RETURN") PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(UCHAR_MAMEKEY(ENTER_PAD)) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) // 84 PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) // 85 PORT_START("X2") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) // 18 PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 6") PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD)) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 3") PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD)) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) // 86 PORT_START("X3") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("4 \xC2\xA4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR(0x00A4) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 9") PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD)) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 5") PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD)) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 2") PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_START("X4") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 8") PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD)) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 4") PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD)) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 1") PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD)) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad .") PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR(UCHAR_MAMEKEY(DEL_PAD)) PORT_START("X5") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 7") PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD)) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PF4") PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PF6") PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6)) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 0") PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD)) PORT_START("X6") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('/') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PF2") PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PF3") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PF5") PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PF8") PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8)) PORT_START("X7") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PF1") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR('\r') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PF7") PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7)) PORT_START("X8") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR(';') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('<') PORT_CHAR('>') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u_UMLAUT " " U_UMLAUT) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(0x00FC) PORT_CHAR(0x00DC) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('\'') PORT_CHAR('*') PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_TAB) PORT_CHAR(UCHAR_MAMEKEY(TAB)) PORT_START("X9") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('=') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR(':') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(e_ACUTE " " E_ACUTE) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR(0x00E9) PORT_CHAR(0x00C9) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(a_RING " " A_RING) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR(0x00E5) PORT_CHAR(0x00C5) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(a_UMLAUT " " A_UMLAUT) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(0x00E4) PORT_CHAR(0x00C4) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Right SHIFT") PORT_CODE(KEYCODE_RSHIFT) PORT_START("X10") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('+') PORT_CHAR('?') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(o_UMLAUT " " O_UMLAUT) PORT_CODE(KEYCODE_COLON) PORT_CHAR(0x00F6) PORT_CHAR(0x00D6) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('-') PORT_CHAR('_') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) // 87 PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) // 88 PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) // 89 PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) // 8a PORT_START("X11") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) // 03 PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED ) // 23 PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) // 96 PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) // 8b PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) // 8c PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) // 8d PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) // 8e PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) // 8f INPUT_PORTS_END //------------------------------------------------- // input_ports - device-specific input ports //------------------------------------------------- ioport_constructor abc800_keyboard_device::device_input_ports() const { return INPUT_PORTS_NAME( abc800_keyboard ); } //************************************************************************** // INLINE HELPERS //************************************************************************** //------------------------------------------------- // serial_output - //------------------------------------------------- inline void abc800_keyboard_device::serial_output(int state) { if (m_txd != state) { m_txd = state; } } //------------------------------------------------- // serial_clock - //------------------------------------------------- inline void abc800_keyboard_device::serial_clock() { m_clk = !m_clk; m_out_clock_func(!m_clk); } //------------------------------------------------- // keydown - //------------------------------------------------- inline void abc800_keyboard_device::key_down(int state) { if (m_keydown != state) { m_keydown = state; m_out_keydown_func(state); } } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // abc800_keyboard_device - constructor //------------------------------------------------- abc800_keyboard_device::abc800_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, ABC800_KEYBOARD, "ABC-800 Keyboard", tag, owner, clock), m_maincpu(*this, I8048_TAG), m_x0(*this, "X0"), m_x1(*this, "X1"), m_x2(*this, "X2"), m_x3(*this, "X3"), m_x4(*this, "X4"), m_x5(*this, "X5"), m_x6(*this, "X6"), m_x7(*this, "X7"), m_x8(*this, "X8"), m_x9(*this, "X9"), m_x10(*this, "X10"), m_x11(*this, "X11"), m_row(0), m_txd(1), m_clk(0), m_stb(1), m_keydown(1) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void abc800_keyboard_device::device_start() { // allocate timers m_serial_timer = timer_alloc(); m_serial_timer->adjust(attotime::from_hz(XTAL_5_9904MHz/(3*5)/20), 0, attotime::from_hz(XTAL_5_9904MHz/(3*5)/20)); // ??? // resolve callbacks m_out_clock_func.resolve(m_out_clock_cb, *this); m_out_keydown_func.resolve(m_out_keydown_cb, *this); // state saving save_item(NAME(m_row)); save_item(NAME(m_clk)); save_item(NAME(m_txd)); save_item(NAME(m_stb)); save_item(NAME(m_keydown)); } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void abc800_keyboard_device::device_reset() { } //------------------------------------------------- // device_timer - handler timer events //------------------------------------------------- void abc800_keyboard_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) { serial_clock(); } //------------------------------------------------- // rxd_w - keyboard receive data write //------------------------------------------------- WRITE_LINE_MEMBER( abc800_keyboard_device::rxd_w ) { m_maincpu->set_input_line(MCS48_INPUT_IRQ, state ? CLEAR_LINE : ASSERT_LINE); } //------------------------------------------------- // txd_r - keyboard transmit data read //------------------------------------------------- READ_LINE_MEMBER( abc800_keyboard_device::txd_r ) { return m_txd; } //------------------------------------------------- // kb_p1_r - keyboard column data read //------------------------------------------------- READ8_MEMBER( abc800_keyboard_device::kb_p1_r ) { UINT8 data = 0xff; if (m_stb) { switch (m_row) { case 0: data = m_x0->read(); break; case 1: data = m_x1->read(); break; case 2: data = m_x2->read(); break; case 3: data = m_x3->read(); break; case 4: data = m_x4->read(); break; case 5: data = m_x5->read(); break; case 6: data = m_x6->read(); break; case 7: data = m_x7->read(); break; case 8: data = m_x8->read(); break; case 9: data = m_x9->read(); break; case 10: data = m_x10->read(); break; case 11: data = m_x11->read(); break; } } return data; } //------------------------------------------------- // kb_p1_w - keyboard row write //------------------------------------------------- WRITE8_MEMBER( abc800_keyboard_device::kb_p1_w ) { /* bit description 0 A0 1 A1 2 A2 3 A3 4 ? 5 ? 6 7 */ // keyboard row if (!m_stb) { m_row = data & 0x0f; } } //------------------------------------------------- // kb_p2_w - keyboard control write //------------------------------------------------- WRITE8_MEMBER( abc800_keyboard_device::kb_p2_w ) { /* bit description 0 1 2 3 4 TxD 5 ? 6 22-008-03 CLR, 22-050-3B STB 7 22-008-03 HYS */ // TxD serial_output(!BIT(data, 4)); // keydown key_down(!BIT(data, 5)); // strobe m_stb = BIT(data, 6); } //------------------------------------------------- // kb_t1_r - keyboard T1 timer read //------------------------------------------------- READ8_MEMBER( abc800_keyboard_device::kb_t1_r ) { return m_clk; }