// license:BSD-3-Clause // copyright-holders:R. Belmont /* Apple Macintosh original/512/Plus keyboard Emulation by R. Belmont Port definitions from "IM Underground Volume 1" http://bitsavers.org/pdf/apple/mac/IM_Underground_Vol_1_1985.pdf Key matrix for keyboard: Cols 0 1 2 3 4 5 6 7 8 Rows G B T 5 0 P ; . n/a 0 H n/a Y 6 8 I K M Enter 1 F V R 4 - [ ' N Backsp 2 D C E 3 7 U J / ` 3 S X W 2 9 O L , Space 4 A Z Q 1 = ] Ret \ Tab 5 Port 0: x------- Clock to Mac -x------ Caps Lock --x----- Row 5 readback (tied to Vcc for keypad) ---x---- Row 4 readback ----x--- Row 3 readback -----x-- Row 2 readback ------x- Row 1 readback -------x Row 0 readback Port 1: x------- Column 8 strobe -x------ Column 7 strobe --x----- Column 6 strobe ---x---- Column 5 strobe ----x--- Column 4 strobe -----x-- Column 3 strobe ------x- Column 2 strobe -------x Column 1 strobe Port 2: x--- Command/Apple -x-- Shift --x- Column 0 strobe ---x Data to Mac The T1 line is "Option". There is a later M0110 keyboard version which uses a GI PIC1657; we do not have a dump of that version. */ #include "emu.h" #include "mackbd.h" #include "cpu/mcs48/mcs48.h" //************************************************************************** // MACROS / CONSTANTS //************************************************************************** #define MACKBD_CPU_TAG "mackbd" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** DEFINE_DEVICE_TYPE(MACKBD, mackbd_device, "mackbd", "Macintosh Keyboard") ROM_START( mackbd ) ROM_REGION(0x800, MACKBD_CPU_TAG, 0) // original Mac keyboard and optional external keypad ROM_LOAD( "ip8021h_2173.bin", 0x000000, 0x000400, CRC(5fbd9a94) SHA1(32a3b58afb445a8675b12a4de3aec2fa00c99222) ) // Mac Plus all-in-one keyboard (not yet supported) ROM_LOAD( "341-0332-a.bin", 0x000400, 0x000400, CRC(6554f5b6) SHA1(a80404a122d74721cda13b285c412057c2c78bd7) ) ROM_END static INPUT_PORTS_START( mackbd ) PORT_START("COL0") PORT_BIT(0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_BIT(0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_BIT(0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_BIT(0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_BIT(0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_BIT(0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_START("COL1") PORT_BIT(0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_BIT(0x0002, IP_ACTIVE_LOW, IPT_UNKNOWN) PORT_BIT(0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_BIT(0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_BIT(0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_BIT(0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_START("COL2") PORT_BIT(0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_BIT(0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_BIT(0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_BIT(0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_BIT(0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_BIT(0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_START("COL3") PORT_BIT(0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT(0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') PORT_BIT(0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_BIT(0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT(0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') PORT_BIT(0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_START("COL4") PORT_BIT(0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') PORT_BIT(0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') PORT_BIT(0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') PORT_BIT(0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') PORT_BIT(0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') PORT_BIT(0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+') PORT_START("COL5") PORT_BIT(0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_BIT(0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_BIT(0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') PORT_BIT(0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_BIT(0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_BIT(0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') PORT_START("COL6") PORT_BIT(0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') PORT_BIT(0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_BIT(0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"') PORT_BIT(0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_BIT(0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_BIT(0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR('\r') PORT_NAME("Return") PORT_START("COL7") PORT_BIT(0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') PORT_BIT(0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_BIT(0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_BIT(0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') PORT_BIT(0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') PORT_BIT(0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|') PORT_START("COL8") PORT_BIT(0x0001, IP_ACTIVE_LOW, IPT_UNKNOWN) PORT_BIT(0x0002, IP_ACTIVE_LOW, IPT_UNKNOWN) PORT_BIT(0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_BIT(0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`') PORT_CHAR('~') PORT_BIT(0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT(0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t') PORT_START("MODS") PORT_BIT(0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Caps Lock") PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE PORT_BIT(0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Option") PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_SHIFT_2) PORT_BIT(0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT(0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Command") PORT_CODE(KEYCODE_LCONTROL) INPUT_PORTS_END //------------------------------------------------- // device_add_mconfig - add device configuration //------------------------------------------------- void mackbd_device::device_add_mconfig(machine_config &config) { mcs48_cpu_device &cpu(I8021(config, m_maincpu, 3000000)); // "the approximate clock rate of the MPU is 3 MHz" cpu.bus_in_cb().set(FUNC(mackbd_device::p0_r)); cpu.bus_out_cb().set(FUNC(mackbd_device::p0_w)); cpu.p1_in_cb().set(FUNC(mackbd_device::p1_r)); cpu.p1_out_cb().set(FUNC(mackbd_device::p1_w)); cpu.p2_in_cb().set(FUNC(mackbd_device::p2_r)); cpu.p2_out_cb().set(FUNC(mackbd_device::p2_w)); cpu.t1_in_cb().set_ioport("MODS").bit(1); // option } const tiny_rom_entry *mackbd_device::device_rom_region() const { return ROM_NAME( mackbd ); } ioport_constructor mackbd_device::device_input_ports() const { return INPUT_PORTS_NAME( mackbd ); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // mackbd_device - constructor //------------------------------------------------- mackbd_device::mackbd_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, MACKBD, tag, owner, clock), m_maincpu(*this, MACKBD_CPU_TAG), m_clkout_handler(*this), m_dataout_handler(*this) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void mackbd_device::device_start() { m_clkout_handler.resolve_safe(); } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void mackbd_device::device_reset() { p0 = p1 = p2 = 0; p0 = 0x3f; data_from_mac = data_to_mac = 0; } void mackbd_device::scan_kbd_col(int col) { char tempcol[8]; uint16_t keydata; // read the selected col sprintf(tempcol, "COL%d", col); keydata = ioport(tempcol)->read(); p0 &= ~0x3f; p0 |= (keydata & 0x3f); // set modifier bits in p2 p2 = ioport("MODS")->read() & 0xc; } READ8_MEMBER(mackbd_device::p0_r) { uint8_t ret = p0; // capslock if (ioport("MODS")->read() & 0x1) { ret |= 0x40; } return ret; } WRITE8_MEMBER(mackbd_device::p0_w) { if (!(data & 2)) { scan_kbd_col(0); } if (data & 0x80) { m_clkout_handler(ASSERT_LINE); } else { m_clkout_handler(CLEAR_LINE); // machine().scheduler().boost_interleave(attotime::zero, attotime::from_usec(10)); } } READ8_MEMBER(mackbd_device::p1_r) { return p1; } WRITE8_MEMBER(mackbd_device::p1_w) { data ^= 0xff; if (data & 0x01) scan_kbd_col(1); if (data & 0x02) scan_kbd_col(2); if (data & 0x04) scan_kbd_col(3); if (data & 0x08) scan_kbd_col(4); if (data & 0x10) scan_kbd_col(5); if (data & 0x20) scan_kbd_col(6); if (data & 0x40) scan_kbd_col(7); if (data & 0x80) scan_kbd_col(8); } READ8_MEMBER(mackbd_device::p2_r) { return p2 | data_from_mac; } WRITE8_MEMBER(mackbd_device::p2_w) { // prevent key scan accesses to the port from messing with the data line (how does this work on h/w?) if (m_maincpu->pc() != 0x19e && m_maincpu->pc() != 0x1a3) { data_to_mac = data_from_mac = (data & 1); // printf("data to/from mac = %d (PC=%x)\n", data_to_mac, m_maincpu->pc()); } } WRITE_LINE_MEMBER(mackbd_device::data_w) { data_from_mac = (state == ASSERT_LINE) ? 1 : 0; }