// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Tandy Radio Shack TRS-80 Model II keyboard emulation **********************************************************************/ #include "emu.h" #include "trs80m2kb.h" //************************************************************************** // MACROS / CONSTANTS //************************************************************************** #define I8021_TAG "z4" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** DEFINE_DEVICE_TYPE(TRS80M2_KEYBOARD, trs80m2_keyboard_device, "trs80m2kb", "TRS-80 Model II Keyboard") //------------------------------------------------- // ROM( trs80m2_keyboard ) //------------------------------------------------- ROM_START( trs80m2_keyboard ) ROM_REGION( 0x400, I8021_TAG, 0 ) ROM_LOAD( "65-1991.z4", 0x0000, 0x0400, CRC(0a50e977) SHA1(c944cb9be062c9eed4f20a5b2568c8019dc71e27)) ROM_END //------------------------------------------------- // rom_region - device-specific ROM region //------------------------------------------------- const tiny_rom_entry *trs80m2_keyboard_device::device_rom_region() const { return ROM_NAME( trs80m2_keyboard ); } //------------------------------------------------- // device_add_mconfig - add device configuration //------------------------------------------------- void trs80m2_keyboard_device::device_add_mconfig(machine_config &config) { I8021(config, m_maincpu, 3000000); // 1000uH inductor connected across the XTAL inputs m_maincpu->t1_in_cb().set(FUNC(trs80m2_keyboard_device::kb_t1_r)); m_maincpu->bus_in_cb().set(FUNC(trs80m2_keyboard_device::kb_p0_r)); m_maincpu->p1_out_cb().set(FUNC(trs80m2_keyboard_device::kb_p1_w)); m_maincpu->p2_out_cb().set(FUNC(trs80m2_keyboard_device::kb_p2_w)); m_maincpu->set_disable(); // TODO } //------------------------------------------------- // INPUT_PORTS( trs80m2_keyboard ) //------------------------------------------------- INPUT_PORTS_START( trs80m2_keyboard ) PORT_START("Y0") PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 0") PORT_CODE(KEYCODE_0_PAD) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("Y1") PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_DOWN) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("Y2") PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("REPEAT") PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Right SHIFT") PORT_CODE(KEYCODE_RSHIFT) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CAPS") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Left SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("LOCK") PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("Y3") PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("cannot read label") PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad .") PORT_CODE(KEYCODE_DEL_PAD) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 3") PORT_CODE(KEYCODE_3_PAD) PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_START("Y4") PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BACKSPACE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_BIT( 0x10, 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_E) PORT_CHAR('e') PORT_CHAR('E') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F2") PORT_CODE(KEYCODE_F2) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 5") PORT_CODE(KEYCODE_5_PAD) PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_START("Y5") PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("HOLD") PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F1") PORT_CODE(KEYCODE_F1) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 2") PORT_CODE(KEYCODE_2_PAD) PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_START("Y6") PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad ENTER") PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(13) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 9") PORT_CODE(KEYCODE_9_PAD) PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 7") PORT_CODE(KEYCODE_7_PAD) PORT_START("Y7") PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') PORT_BIT( 0x10, 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_W) PORT_CHAR('w') PORT_CHAR('W') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 6") PORT_CODE(KEYCODE_6_PAD) PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 4") PORT_CODE(KEYCODE_4_PAD) PORT_START("Y8") PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 8") PORT_CODE(KEYCODE_8_PAD) PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 1") PORT_CODE(KEYCODE_1_PAD) PORT_START("Y9") PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("Y10") PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') PORT_BIT( 0x10, 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_1) PORT_CHAR('1') PORT_CHAR('!') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("Y11") PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t') PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) INPUT_PORTS_END //------------------------------------------------- // input_ports - device-specific input ports //------------------------------------------------- ioport_constructor trs80m2_keyboard_device::device_input_ports() const { return INPUT_PORTS_NAME( trs80m2_keyboard ); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // trs80m2_keyboard_device - constructor //------------------------------------------------- trs80m2_keyboard_device::trs80m2_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, TRS80M2_KEYBOARD, tag, owner, clock), m_maincpu(*this, I8021_TAG), m_y(*this, "Y%u", 0), m_leds(*this, "led%u", 0U), m_write_clock(*this), m_busy(1), m_data(1), m_clk(0) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void trs80m2_keyboard_device::device_start() { m_leds.resolve(); // resolve callbacks m_write_clock.resolve_safe(); // state saving save_item(NAME(m_busy)); save_item(NAME(m_data)); save_item(NAME(m_clk)); save_item(NAME(m_keylatch)); } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void trs80m2_keyboard_device::device_reset() { } //------------------------------------------------- // busy_w - //------------------------------------------------- WRITE_LINE_MEMBER( trs80m2_keyboard_device::busy_w ) { m_busy = state; } //------------------------------------------------- // data_r - //------------------------------------------------- READ_LINE_MEMBER( trs80m2_keyboard_device::data_r ) { return m_data; } //------------------------------------------------- // kb_t1_r - //------------------------------------------------- READ_LINE_MEMBER( trs80m2_keyboard_device::kb_t1_r ) { return m_busy; } //------------------------------------------------- // kb_p0_r - //------------------------------------------------- uint8_t trs80m2_keyboard_device::kb_p0_r() { uint8_t data = 0xff; if (m_keylatch < 12) { data &= m_y[m_keylatch]->read(); } return data; } //------------------------------------------------- // kb_p1_w - //------------------------------------------------- void trs80m2_keyboard_device::kb_p1_w(uint8_t data) { /* bit description 0 DATA 1 CLOCK 2 LED 3 4 LED 5 6 7 */ m_data = BIT(data, 0); int clk = BIT(data, 1); if (m_clk != clk) { m_write_clock(clk); m_clk = clk; } m_leds[LED_0] = BIT(data, 2); m_leds[LED_1] = BIT(data, 4); } //------------------------------------------------- // kb_p2_w - //------------------------------------------------- void trs80m2_keyboard_device::kb_p2_w(uint8_t data) { /* bit description 0 D 1 C 2 B 3 A 4 5 6 7 */ m_keylatch = bitswap<8>(data, 7, 6, 5, 4, 0, 1, 2, 3) & 0x0f; }