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Diffstat (limited to 'src/mame/machine/k7659kb.cpp')
-rw-r--r-- | src/mame/machine/k7659kb.cpp | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/src/mame/machine/k7659kb.cpp b/src/mame/machine/k7659kb.cpp new file mode 100644 index 00000000000..5b46d8a9814 --- /dev/null +++ b/src/mame/machine/k7659kb.cpp @@ -0,0 +1,311 @@ +// license:BSD-3-Clause +// copyright-holders:Sergey Svishchev +/********************************************************************** + + K7659 keyboard emulation + +*********************************************************************/ + +#include "k7659kb.h" + + + +//************************************************************************** +// MACROS / CONSTANTS +//************************************************************************** + + + + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +const device_type K7659_KEYBOARD = &device_creator<k7659_keyboard_device>; + + + +//------------------------------------------------- +// ROM( k7659_keyboard ) +//------------------------------------------------- + +ROM_START( k7659_keyboard ) + ROM_REGION(0x0800, "k7659",0) + ROM_LOAD ("k7659n.bin", 0x0000, 0x0800, CRC(7454bf0a) SHA1(b97e7df93778fa371b96b6f4fb1a5b1c8b89d7ba) ) +ROM_END + + +//------------------------------------------------- +// rom_region - device-specific ROM region +//------------------------------------------------- + +const rom_entry *k7659_keyboard_device::device_rom_region() const +{ + return ROM_NAME( k7659_keyboard ); +} + + +//------------------------------------------------- +// ADDRESS_MAP( kb_io ) +//------------------------------------------------- + + + +//------------------------------------------------- +// DISCRETE_SOUND_START( k7659kb ) +//------------------------------------------------- + + + +//------------------------------------------------- +// MACHINE_DRIVER( k7659_keyboard ) +//------------------------------------------------- + +static MACHINE_CONFIG_FRAGMENT( k7659_keyboard ) + +MACHINE_CONFIG_END + + +//------------------------------------------------- +// machine_config_additions - device-specific +// machine configurations +//------------------------------------------------- + +machine_config_constructor k7659_keyboard_device::device_mconfig_additions() const +{ + return MACHINE_CONFIG_NAME( k7659_keyboard ); +} + + +//------------------------------------------------- +// INPUT_PORTS( k7659_keyboard ) +//------------------------------------------------- + +static INPUT_PORTS_START( k7659_keyboard ) + PORT_START("A1") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1 !") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_CHAR(0x11) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_CHAR(0x01) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_CHAR(0x19) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2 \"") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_CHAR(0x17) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_CHAR(0x13) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_CHAR(0x18) + PORT_START("A2") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR(0xff) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_CHAR(0x05) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_CHAR(0x04) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_CHAR(0x03) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4 $") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_CHAR(0x12) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_CHAR(0x06) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_CHAR(0x16) + PORT_START("A3") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5 %") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_CHAR(0x14) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_CHAR(0x07) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_CHAR(0x02) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6 &") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_CHAR(0x1a) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_CHAR(0x08) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_CHAR(0x0e) + PORT_START("A4") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7 /") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('/') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_CHAR(0x15) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_CHAR(0x0a) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_CHAR(0x0d) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8 (") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_CHAR(0x09) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_CHAR(0x0b) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(", ;") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR(';') + PORT_START("A5") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9 )") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_CHAR(0x0f) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_CHAR(0x0c) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(". :") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR(':') + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('=') PORT_CHAR('0') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_CHAR(0x10) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("| \\") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('|') PORT_CHAR('\\') PORT_CHAR(0x1c) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("- _") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') + PORT_START("A6") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("~ ?") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('~') PORT_CHAR('?') PORT_CHAR(0x1e) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("} ]") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('}') PORT_CHAR(']') PORT_CHAR(0x1d) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("{ [") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('{') PORT_CHAR('[') PORT_CHAR(0x1b) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("<") PORT_CODE(KEYCODE_0_PAD) PORT_CHAR('<') + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("+ *") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('+') PORT_CHAR('*') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("# '") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('#') PORT_CHAR('\'') PORT_CHAR(0x1f) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("^ ~") PORT_CODE(KEYCODE_COLON) PORT_CHAR('^') PORT_CHAR('~') PORT_CHAR(0x1e) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Tab") PORT_CODE(KEYCODE_TAB) PORT_CHAR(0x09) + PORT_START("A7") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(">") PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR('>') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("CR") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(0x0d) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("04") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x04) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("01") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x01) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_CHAR(' ') PORT_CHAR('`') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Escape") PORT_CODE(KEYCODE_ESC) PORT_CHAR(0x1b) PORT_CHAR(0x1b) PORT_CHAR(0x1f) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("13") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x13) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("06") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x06) + PORT_START("A8") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_RSHIFT) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) + PORT_START("A9") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("CLS") PORT_CODE(KEYCODE_END) PORT_CHAR(0x0c) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL) PORT_CHAR(0x7f) PORT_CHAR(0x1e) PORT_CHAR(0x1f) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F01") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x05) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F02") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x18) + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F03") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x13) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F04") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x04) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F06") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x03) + PORT_START("A10") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F07") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x1a) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F08") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x17) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F09") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x07) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F10") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x14) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F11") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x19) + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F12") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x02) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F13") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x0b) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F14") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x11) + PORT_START("A11") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F05") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x12) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP) PORT_CHAR(0x1a) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN) PORT_CHAR(0x0a) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Right") PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(0x15) + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Left") PORT_CODE(KEYCODE_LEFT) PORT_CHAR(0x08) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E95") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0xff) + PORT_START("A12") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Reset") PORT_CODE(KEYCODE_TILDE) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("NMI") PORT_CODE(KEYCODE_TILDE) + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) +INPUT_PORTS_END + + +//------------------------------------------------- +// input_ports - device-specific input ports +//------------------------------------------------- + +ioport_constructor k7659_keyboard_device::device_input_ports() const +{ + return INPUT_PORTS_NAME( k7659_keyboard ); +} + + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// k7659_keyboard_device - constructor +//------------------------------------------------- + +k7659_keyboard_device::k7659_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : device_t(mconfig, K7659_KEYBOARD, "K7659 Keyboard", tag, owner, clock, "k7659kb", __FILE__) +{} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void k7659_keyboard_device::device_start() +{ + m_timer = timer_alloc(); + // state saving + //save_item(NAME(m_y)); + //save_item(NAME(m_so)); +} + + +//------------------------------------------------- +// device_reset - device-specific reset +//------------------------------------------------- + +void k7659_keyboard_device::device_reset() +{ + m_lookup = 0; + m_p_rom = memregion("k7659")->base(); + m_timer->adjust(attotime::from_hz(200), 0, attotime::from_hz(200)); +} + +void k7659_keyboard_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) +{ + UINT8 retVal = 0;//m_lookup; + UINT8 a1 = ioport("A1")->read(); + UINT8 a2 = ioport("A2")->read(); + UINT8 a3 = ioport("A3")->read(); + UINT8 a4 = ioport("A4")->read(); + UINT8 a5 = ioport("A5")->read(); + UINT8 a6 = ioport("A6")->read(); + UINT8 a7 = ioport("A7")->read(); + UINT8 a8 = ioport("A8")->read(); + UINT8 a9 = ioport("A9")->read(); + UINT8 a10 = ioport("A10")->read(); + UINT8 a11 = ioport("A11")->read(); + UINT8 a12 = ioport("A12")->read(); + UINT16 code = 0; + if (a1) + code = 0x10 + key_pos(a1); + else if (a2) + code = 0x20 + key_pos(a2); + else if (a3) + code = 0x30 + key_pos(a3); + else if (a4) + code = 0x40 + key_pos(a4); + else if (a5) + code = 0x50 + key_pos(a5); + else if (a6) + code = 0x60 + key_pos(a6); + else if (a7) + code = 0x70 + key_pos(a7); + else if (a9) + code = 0x80 + key_pos(a9); + else if (a10) + code = 0x90 + key_pos(a10); + else if (a11) + code = 0xA0 + key_pos(a11); + + if (code) + { + if (BIT(a8,6) || BIT(a8,7)) + code |= 0x100; + else + if (BIT(a12,6)) + code |= 0x200; + + m_lookup = m_p_rom[code]; + retVal = m_lookup | 0x80; + } + m_key = retVal; +} + +UINT8 k7659_keyboard_device::key_pos(UINT8 val) +{ + if (BIT(val,0)) return 1; + if (BIT(val,1)) return 2; + if (BIT(val,2)) return 3; + if (BIT(val,3)) return 4; + if (BIT(val,4)) return 5; + if (BIT(val,5)) return 6; + if (BIT(val,6)) return 7; + if (BIT(val,7)) return 8; + return 0; +} + +READ8_MEMBER(k7659_keyboard_device::read) +{ + return m_key; +} |