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Diffstat (limited to 'src/devices/machine/exorterm.cpp')
-rw-r--r-- | src/devices/machine/exorterm.cpp | 890 |
1 files changed, 890 insertions, 0 deletions
diff --git a/src/devices/machine/exorterm.cpp b/src/devices/machine/exorterm.cpp new file mode 100644 index 00000000000..977b84ec937 --- /dev/null +++ b/src/devices/machine/exorterm.cpp @@ -0,0 +1,890 @@ +// license:BSD-3-Clause +// copyright-holders: 68bit +/**************************************************************************** + +Motorola EXORterm 155 (M68SDS) + +The terminfo database has an entry for this terminal named 'ex155'. + +TODO + - Keyboard layout. All the codes appear to have been implemented following + the manual but have not been checked with hardware. The key repetition + rate and delay need to be checked. + - Video character ROM needs dumping. An apparently close Motorola published + 7x9 character set has been substituted for now, but three of the codes + (0x1a, 0x1b, and 0x1c) do not match the characters listed in the manual. + +****************************************************************************/ + +#include "emu.h" +#include "exorterm.h" + +#include "speaker.h" + +#include "exorterm155.lh" + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +exorterm155_device::exorterm155_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock) + : device_t(mconfig, type, tag, owner, clock) + , m_maincpu(*this, "maincpu") + , m_irqs(*this, "irqs") + , m_acia(*this, "acia") + , m_brg(*this, "brg") + , m_rs232_baud(*this, "RS232_BAUD") + , m_disable_fac(*this, "DISABLE_FAC") + , m_display_fac(*this, "DISPLAY_FAC") + , m_pia_kbd(*this, "pia_kbd") + , m_pia_cfg(*this, "pia_cfg") + , m_pia_disp(*this, "pia_disp") + , m_screen(*this, "screen") + , m_palette(*this, "palette") + , m_sys_timer_clock(*this, "sys_timer_clock") + , m_vram(*this, "videoram") + , m_chargen(*this, "chargen") + , m_beeper(*this, "beeper") + , m_online_led(*this, "online_led") + , m_auto_lf_led(*this, "auto_lf_led") + , m_page_mode_led(*this, "page_mode_led") + , m_insert_char_led(*this, "insert_char_led") + , m_rs232_conn_txd_handler(*this) + , m_rs232_conn_dtr_handler(*this) + , m_rs232_conn_rts_handler(*this) + // Keyboard + , m_kbd_scan_timer(nullptr) + , m_kbd_repeat_timer(nullptr) + , m_kbd_modifiers(*this, "KBD_MOD") + , m_kbd_rows(*this, "KBD_ROW%u", 0) + , m_kbd_next_row(0) + , m_kbd_processing(0) + , m_kbd_repeat_row(0) + , m_kbd_repeat_column(0) + , m_kbd_last_modifiers(0) +{ +} + +exorterm155_device::exorterm155_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : exorterm155_device(mconfig, EXORTERM155, tag, owner, clock) +{ +} + +//************************************************************************** +// ADDRESS MAPS +//************************************************************************** + +void exorterm155_device::mem_map(address_map &map) +{ + // 2 x 1Kx4 static RAM. + map(0x0000, 0x03ff).ram(); // Scratch RAM + + map(0xa000, 0xa7ff).rom(); // U89 68K edit mode + //map(0xa800, 0xafff).rom(); // U70 (reserved) + //map(0xb000, 0xb7ff).rom(); // U59 (reserved) + map(0xc000, 0xc7ff).rom(); // U49 Extended display + map(0xc800, 0xcfff).rom(); // U104 Basic display #1 + map(0xd000, 0xd7ff).rom(); // U98 Basic display #2 + // Appears to mirror to ff00-ffff for the reset vectors. + map(0xd800, 0xdfff).rom().mirror(0x2000); // U78 Terminal control + + // 4 x 1Kx4 static RAM. + map(0xe000, 0xe7ff).ram().share(m_vram); + + map(0xef00, 0xef01).rw(m_acia, FUNC(acia6850_device::read), FUNC(acia6850_device::write)); + map(0xef04, 0xef07).rw(m_pia_kbd, FUNC(pia6821_device::read), FUNC(pia6821_device::write)); + map(0xef08, 0xef0b).rw(m_pia_cfg, FUNC(pia6821_device::read), FUNC(pia6821_device::write)); + map(0xef0c, 0xef0f).rw(m_pia_disp, FUNC(pia6821_device::read), FUNC(pia6821_device::write)); +} + + +//************************************************************************** +// INPUT PORT DEFINITIONS +//************************************************************************** + +INPUT_PORTS_START( exorterm155 ) + + PORT_START("DISABLE_FAC") + PORT_DIPNAME(0x01, 0x01, "Disable FAC codes") PORT_DIPLOCATION("SW1:1") + PORT_DIPSETTING(0x00, "On") + PORT_DIPSETTING(0x01, "Off") + + PORT_START("DISPLAY_FAC") + PORT_DIPNAME(0x01, 0x01, "Display FAC codes") PORT_DIPLOCATION("SW1:2") + PORT_DIPSETTING(0x00, "On") + PORT_DIPSETTING(0x01, "Off") + + PORT_START("DIP_SWITCHES_A") + PORT_DIPNAME(0x01, 0x01, "Stop bits") PORT_DIPLOCATION("SW2:5") + PORT_DIPSETTING(0x00, "2") + PORT_DIPSETTING(0x01, "1") + PORT_DIPNAME(0x02, 0x02, "Duplex") PORT_DIPLOCATION("SW2:1") + PORT_DIPSETTING(0x00, "Half") + PORT_DIPSETTING(0x02, "Full") + PORT_DIPNAME(0x04, 0x04, "Parity") PORT_DIPLOCATION("SW2:2") + PORT_DIPSETTING(0x00, "Yes") + PORT_DIPSETTING(0x04, "No") + PORT_DIPNAME(0x08, 0x08, "Parity") PORT_DIPLOCATION("SW2:3") + PORT_DIPSETTING(0x00, "Odd") + PORT_DIPSETTING(0x08, "Even") + PORT_DIPNAME(0x10, 0x00, "Word size") PORT_DIPLOCATION("SW2:4") + PORT_DIPSETTING(0x00, "8-bit") + PORT_DIPSETTING(0x10, "7-bit") + PORT_DIPNAME(0x20, 0x00, "Connection") PORT_DIPLOCATION("SW2:6") + PORT_DIPSETTING(0x00, "Direct") + PORT_DIPSETTING(0x20, "Modem") + PORT_DIPNAME(0x40, 0x40, "Modem Type") PORT_DIPLOCATION("SW2:7") + PORT_DIPSETTING(0x00, "202") + PORT_DIPSETTING(0x40, "103") + PORT_DIPNAME(0x80, 0x80, "Turnaround") PORT_DIPLOCATION("SW2:8") + PORT_DIPSETTING(0x00, "Code") + PORT_DIPSETTING(0x80, "S-chan") + + PORT_START("DIP_SWITCHES_B") + PORT_DIPNAME(0x01, 0x01, "Code") PORT_DIPLOCATION("SW2:9") + PORT_DIPSETTING(0x00, "ETX") + PORT_DIPSETTING(0x01, "EOT") + PORT_DIPNAME(0x02, 0x02, "Spare 1") PORT_DIPLOCATION("SW1:5") + PORT_DIPSETTING(0x00, "On") + PORT_DIPSETTING(0x02, "Off") + PORT_DIPNAME(0x04, 0x04, "Spare 2") PORT_DIPLOCATION("SW1:6") + PORT_DIPSETTING(0x00, "On") + PORT_DIPSETTING(0x04, "Off") + PORT_DIPNAME(0x08, 0x08, "Spare 3") PORT_DIPLOCATION("SW1:7") + PORT_DIPSETTING(0x00, "On") + PORT_DIPSETTING(0x08, "Off") + PORT_DIPNAME(0x10, 0x10, "Display special characters") PORT_DIPLOCATION("SW1:8") + PORT_DIPSETTING(0x00, "On") + PORT_DIPSETTING(0x10, "Off") + PORT_DIPNAME(0x40, 0x40, "Transparent mode") PORT_DIPLOCATION("SW1:3") + PORT_DIPSETTING(0x00, "On") + PORT_DIPSETTING(0x40, "Off") + PORT_DIPNAME(0x80, 0x80, "Video invert") PORT_DIPLOCATION("SW1:4") + PORT_DIPSETTING(0x00, "Invert") + PORT_DIPSETTING(0x80, "Normal") + + PORT_START("RS232_BAUD") + PORT_DIPNAME(0x1ff, 0x01, "RS232 Baud Rate") + PORT_DIPSETTING(0x100, "110") PORT_DIPLOCATION("SW3:1,2,3,4,5,6,7,8,9") + PORT_DIPSETTING(0x080, "150") PORT_DIPLOCATION("SW3:1,2,3,4,5,6,7,8,9") + PORT_DIPSETTING(0x040, "300") PORT_DIPLOCATION("SW3:1,2,3,4,5,6,7,8,9") + PORT_DIPSETTING(0x020, "600") PORT_DIPLOCATION("SW3:1,2,3,4,5,6,7,8,9") + PORT_DIPSETTING(0x010, "1200") PORT_DIPLOCATION("SW3:1,2,3,4,5,6,7,8,9") + PORT_DIPSETTING(0x008, "1800") PORT_DIPLOCATION("SW3:1,2,3,4,5,6,7,8,9") + PORT_DIPSETTING(0x004, "2400") PORT_DIPLOCATION("SW3:1,2,3,4,5,6,7,8,9") + PORT_DIPSETTING(0x002, "4800") PORT_DIPLOCATION("SW3:1,2,3,4,5,6,7,8,9") + PORT_DIPSETTING(0x001, "9600") PORT_DIPLOCATION("SW3:1,2,3,4,5,6,7,8,9") + + // Keyboard + + PORT_START("KBD_MOD") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("All Caps") PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) + + PORT_START("KBD_ROW0") + PORT_BIT( 0x00001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) + PORT_BIT( 0x00002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) + PORT_BIT( 0x00004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) + PORT_BIT( 0x00008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) + PORT_BIT( 0x00010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5)) + PORT_BIT( 0x00020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6)) + PORT_BIT( 0x00040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7)) + PORT_BIT( 0x00080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8)) + PORT_BIT( 0x00100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F9) PORT_CHAR(UCHAR_MAMEKEY(F9)) + PORT_BIT( 0x00200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F10) PORT_CHAR(UCHAR_MAMEKEY(F10)) + PORT_BIT( 0x00400, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F11) PORT_CHAR(UCHAR_MAMEKEY(F11)) + PORT_BIT( 0x00800, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F12) PORT_CHAR(UCHAR_MAMEKEY(F12)) + PORT_BIT( 0x01000, IP_ACTIVE_HIGH, IPT_UNUSED ) + PORT_BIT( 0x02000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH_PAD) PORT_NAME("Auto LF") + PORT_BIT( 0x04000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ASTERISK) PORT_NAME("Online") + PORT_BIT( 0x08000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS_PAD) PORT_NAME("Page Mode") + PORT_BIT( 0x10000, IP_ACTIVE_HIGH, IPT_UNUSED ) + + PORT_START("KBD_ROW1") + PORT_BIT( 0x00001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') + PORT_BIT( 0x00002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') + PORT_BIT( 0x00004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') + PORT_BIT( 0x00008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') + PORT_BIT( 0x00010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') + PORT_BIT( 0x00020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') + PORT_BIT( 0x00040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') + PORT_BIT( 0x00080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') + PORT_BIT( 0x00100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') + PORT_BIT( 0x00200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') + PORT_BIT( 0x00400, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`') PORT_CHAR('~') + PORT_BIT( 0x00800, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') + PORT_BIT( 0x01000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+') + PORT_BIT( 0x02000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PAUSE) PORT_NAME("Break") PORT_CHAR(UCHAR_MAMEKEY(CANCEL)) + PORT_BIT( 0x04000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_INSERT) PORT_NAME("Insert Character") PORT_CHAR(UCHAR_MAMEKEY(INSERT)) + PORT_BIT( 0x08000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DEL) PORT_NAME("Delete Character") PORT_CHAR(UCHAR_MAMEKEY(DEL)) + PORT_BIT( 0x10000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PLUS_PAD) PORT_NAME("Set Tabs") + + PORT_START("KBD_ROW2") + PORT_BIT( 0x00001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ESC) PORT_NAME("Escape") PORT_CHAR(UCHAR_MAMEKEY(ESC)) + PORT_BIT( 0x00002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') + PORT_BIT( 0x00004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') + PORT_BIT( 0x00008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') + PORT_BIT( 0x00010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') + PORT_BIT( 0x00020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') + PORT_BIT( 0x00040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') + PORT_BIT( 0x00080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') + PORT_BIT( 0x00100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') + PORT_BIT( 0x00200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') + PORT_BIT( 0x00400, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') + PORT_BIT( 0x00800, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|') + PORT_BIT( 0x01000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_END) PORT_NAME("Linefeed") + PORT_BIT( 0x02000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ENTER) PORT_NAME("Return") PORT_CHAR(0x0dU) + PORT_BIT( 0x04000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TAB) PORT_NAME("Forward Tab") PORT_CHAR('\t') + PORT_BIT( 0x08000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("Back Tab") + PORT_BIT( 0x10000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DEL_PAD) PORT_NAME("Line Delete") + + PORT_START("KBD_ROW3") + PORT_BIT( 0x00001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') + PORT_BIT( 0x00002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') + PORT_BIT( 0x00004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') + PORT_BIT( 0x00008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') + PORT_BIT( 0x00010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') + PORT_BIT( 0x00020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') + PORT_BIT( 0x00040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') + PORT_BIT( 0x00080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') + PORT_BIT( 0x00100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') + PORT_BIT( 0x00200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') + PORT_BIT( 0x00400, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"') + PORT_BIT( 0x00800, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') + PORT_BIT( 0x01000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') + PORT_BIT( 0x02000, IP_ACTIVE_HIGH, IPT_UNUSED ) + PORT_BIT( 0x04000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_UP) PORT_NAME("Cursor Up") PORT_CHAR(UCHAR_MAMEKEY(UP)) + PORT_BIT( 0x08000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DOWN) PORT_NAME("Cursor Down") PORT_CHAR(UCHAR_MAMEKEY(DOWN)) + PORT_BIT( 0x10000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0_PAD) PORT_NAME("Line Insert") + + PORT_START("KBD_ROW4") + PORT_BIT( 0x00001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_HOME) PORT_NAME("Home / Clear") + PORT_BIT( 0x00002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') + PORT_BIT( 0x00004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') + PORT_BIT( 0x00008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') + PORT_BIT( 0x00010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') + PORT_BIT( 0x00020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') + PORT_BIT( 0x00040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') + PORT_BIT( 0x00080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') + PORT_BIT( 0x00100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') + PORT_BIT( 0x00200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') + PORT_BIT( 0x00400, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') + PORT_BIT( 0x00800, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PGUP) PORT_NAME("Page Send / Line Send") + PORT_BIT( 0x01000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') + PORT_BIT( 0x02000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSPACE) PORT_NAME("Backspace") PORT_CHAR(0x08U) + PORT_BIT( 0x04000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LEFT) PORT_NAME("Cursor Left") PORT_CHAR(UCHAR_MAMEKEY(LEFT)) + PORT_BIT( 0x08000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_RIGHT) PORT_NAME("Cursor Right") PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) + PORT_BIT( 0x10000, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PGDN) PORT_NAME("Page Erase / Line Erase") + +INPUT_PORTS_END + + +// PA0 to PA6 - Keyboard data. +u8 exorterm155_device::pia_kbd_pa_r() +{ + u8 ret = m_term_data; + m_term_data = 0; + return ret; +} + +u8 exorterm155_device::pia_kbd_pb_r() +{ + // PB7 is a 'keyboard attached' signal, low when a keyboard is attached. + return 0x00; +} + +void exorterm155_device::pia_kbd_pb_w(u8 data) +{ + m_online_led = BIT(data, 0) ? 0 : 1; + m_auto_lf_led = BIT(data, 1) ? 0 : 1; + m_page_mode_led = BIT(data, 2) ? 0 : 1; + m_insert_char_led = BIT(data, 5) ? 0 : 1; + // Bit 3 is AUX ON, and bit 4 is AUX EN, but it is not clear + // if the firmware uses these? +} + +void exorterm155_device::pia_cfg_cb2_w(int state) +{ + m_beeper->set_state(!state); +} + +void exorterm155_device::pia_disp_pa_w(u8 data) +{ + m_cursor_addr = (m_cursor_addr & 0x700) | data; +} + +u8 exorterm155_device::pia_disp_pb_r() +{ + u8 ret = 0; + + if (m_dsr) + ret |= 0x20; + + return ret; +} + +void exorterm155_device::pia_disp_pb_w(u8 data) +{ + m_cursor_addr = (m_cursor_addr & 0x0ff) | ((data & 0x7) << 8); + + m_inv_video = BIT(data, 3); + m_special_char_disp = BIT(data, 4); + + m_rs232_conn_dtr_handler(BIT(data, 7)); +} + +//************************************************************************** +// VIDEO EMULATION +//************************************************************************** + +u32 exorterm155_device::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) +{ + u16 sy = 0, ma = 0; + u8 disable_fac = m_disable_fac->read() == 0; + u8 display_fac = m_display_fac->read() == 0; + rgb_t const *const palette = m_palette->palette()->entry_list_raw(); + + m_framecnt++; + + for (u8 y = 0; y < 24; y++) + { + for (u8 ra = 0; ra < 12; ra++) + { + u32 *p = &bitmap.pix(sy++); + // FAC codes are cleared on horizontal sync. + u8 underline1 = 0; + u8 underline2 = 0; + u8 non_display = 0; + u8 invert = 0; + u8 half_bright = 0; + u8 blink = 0; + + for (u16 x = ma; x < ma + 80; x++) + { + u8 code = m_vram[x + 0x80]; + u16 gfx = 0; + + if (BIT(code, 7) && !disable_fac) + { + underline1 = BIT(code, 4); + non_display = BIT(code, 3); + invert = BIT(code, 2); + half_bright = BIT(code, 1); + blink = BIT(code, 0); + } + + // Copying the circuit logic for loading from + // the character generator which occurs when: + // + // 1. Special character display is enabled or + // it is not a special character 0x00 to 0x1f. + // + // AND + // + // 2. Not 'non display' + // + // AND + // + // 3. Not 'blink' and blinked off. + // + // AND + // + // 4. Not FAC code or Display FAC enabled. + // + if ((m_special_char_disp || (code & 0xe0)) && + !non_display && + !(blink && (m_framecnt & 8)) && + (!BIT(code, 7) || display_fac)) + { + offs_t address = ((code & 0x7f) << 4) | (ra & 0x0f); + gfx = m_chargen[address]; + } + + if (underline1 && underline2 && ra == 10) + gfx |= 0x1ff; + + u8 cursor_display = x + 0x80 == m_cursor_addr; + cursor_display = cursor_display && (m_framecnt & 4); + + if (m_inv_video ^ invert ^ cursor_display) + gfx ^= 0x1ff; // invert + + u32 font_color = palette[2 - half_bright]; + + /* Display a scanline of a character */ + *p++ = (BIT(gfx, 7)) ? font_color : 0; + *p++ = (BIT(gfx, 6)) ? font_color : 0; + *p++ = (BIT(gfx, 5)) ? font_color : 0; + *p++ = (BIT(gfx, 4)) ? font_color : 0; + *p++ = (BIT(gfx, 3)) ? font_color : 0; + *p++ = (BIT(gfx, 2)) ? font_color : 0; + *p++ = (BIT(gfx, 1)) ? font_color : 0; + *p++ = (BIT(gfx, 0)) ? font_color : 0; + *p++ = (BIT(gfx, 8)) ? font_color : 0; + + // The circuit has logic to delay underlining + // but not for the other attributes. + underline2 = underline1; + } + } + ma += 80; + } + + return 0; +} + +static const gfx_layout char_layout = +{ + 8,12, + RGN_FRAC(1,1), + 1, + { 0 }, + { 0, 1, 2, 3, 4, 5, 6, 7 }, + { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8 }, + 8*16 +}; + +static GFXDECODE_START(chars) + GFXDECODE_ENTRY("chargen", 0, char_layout, 0, 1) +GFXDECODE_END + +//************************************************************************** +// MACHINE EMULATION +//************************************************************************** + +void exorterm155_device::sys_timer_w(int state) +{ + // 3.4ms + m_pia_disp->cb1_w(state); + + // Divide by 16, giving 27.5ms. + if (state == 1) m_sys_timer_count++; + m_pia_disp->ca1_w((m_sys_timer_count & 8) != 0); + + // The terminal firmware does not initialize properly if a key + // interrupt is received too soon after reset, so a hold off period is + // implemented and measured in terms of these timer interrupts. + if (m_kbd_start_holdoff > 0) + { + if (m_kbd_start_holdoff == 1) + kbd_start_processing(); + m_kbd_start_holdoff--; + } +} + +void exorterm155_device::write_f1_clock(int state) +{ + if (BIT(m_rs232_baud->read(), 0)) + { + m_acia->write_txc(state); + m_acia->write_rxc(state); + } +} + +void exorterm155_device::write_f3_clock(int state) +{ + if (BIT(m_rs232_baud->read(), 1)) + { + m_acia->write_txc(state); + m_acia->write_rxc(state); + } +} + +void exorterm155_device::write_f5_clock(int state) +{ + if (BIT(m_rs232_baud->read(), 2)) + { + m_acia->write_txc(state); + m_acia->write_rxc(state); + } +} + +void exorterm155_device::write_f6_clock(int state) +{ + if (BIT(m_rs232_baud->read(), 3)) + { + m_acia->write_txc(state); + m_acia->write_rxc(state); + } +} + +void exorterm155_device::write_f7_clock(int state) +{ + if (BIT(m_rs232_baud->read(), 4)) + { + m_acia->write_txc(state); + m_acia->write_rxc(state); + } +} + +void exorterm155_device::write_f8_clock(int state) +{ + if (BIT(m_rs232_baud->read(), 5)) + { + m_acia->write_txc(state); + m_acia->write_rxc(state); + } +} + +void exorterm155_device::write_f9_clock(int state) +{ + if (BIT(m_rs232_baud->read(), 6)) + { + m_acia->write_txc(state); + m_acia->write_rxc(state); + } +} + +void exorterm155_device::write_f11_clock(int state) +{ + if (BIT(m_rs232_baud->read(), 7)) + { + m_acia->write_txc(state); + m_acia->write_rxc(state); + } +} + +void exorterm155_device::write_f13_clock(int state) +{ + if (BIT(m_rs232_baud->read(), 8)) + { + m_acia->write_txc(state); + m_acia->write_rxc(state); + } +} + +void exorterm155_device::acia_txd_w(int state) +{ + m_rs232_conn_txd_handler(state); +} + +void exorterm155_device::acia_rts_w(int state) +{ + m_rs232_conn_rts_handler(state); +} + +void exorterm155_device::rs232_conn_dcd_w(int state) +{ + m_acia->write_dcd(state); +} + +void exorterm155_device::rs232_conn_dsr_w(int state) +{ + // Input of Display PIA PB5, pulled high. + m_dsr = state; +} + +void exorterm155_device::rs232_conn_ri_w(int state) +{ + m_pia_disp->ca2_w(state); +} + +void exorterm155_device::rs232_conn_cts_w(int state) +{ + m_acia->write_cts(state); +} + +void exorterm155_device::rs232_conn_rxd_w(int state) +{ + m_acia->write_rxd(state); +} + + +// Keyboard + +u8 const exorterm155_device::translation_table[][5][17] = { + { // Standard + { 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xff, 0xf7, 0xf8, 0xc7, 0xff }, + { '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '`', '-', '=', 0x8c, 0xd0, 0xd1, 0xdc }, + { 0x1b, 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '\\', 0x0a, 0x0d, 0xda, 0xdb, 0xd7 }, + { 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '[', ']', 0xff, 0xc1, 0xc2, 0xd6 }, + { 0xc0, 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0xd9, ' ', 0x08, 0xc3, 0xc4, 0xd4 } + }, + { // Shift + { 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xff, 0xff, 0xff, 0xff, 0xff }, + { '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '~', '_', '+', 0xff, 0xd6, 0xd7, 0xff }, + { 0x1b , 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '|', 0x0a, 0x0d, 0xdb, 0xff, 0xff }, + { 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '{', '}', 0xff, 0xff, 0xff, 0xff }, + { 0xd8, 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', 0xdf, ' ', 0x08, 0xff, 0xff, 0xd5 } + }, + { // Ctrl + { 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xff, 0xff, 0xff, 0xff, 0xff }, + { '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', 0x00, 0x1f, 0x1e, 0xff, 0xff, 0xff, 0xff }, + { 0x1b, 0x11, 0x17, 0x05, 0x12, 0x14, 0x19, 0x15, 0x09, 0x0f, 0x10, 0x1c, 0x0a, 0x0d, 0x09, 0xff, 0xff }, + { 0x01, 0x13, 0x04, 0x06, 0x07, 0x08, 0x0a, 0x0b, 0x0c, ';', '\'', 0x1b, 0x1d, 0xff, 0xff, 0xff, 0xff }, + { 0xff, 0x1a, 0x18, 0x03, 0x16, 0x02, 0x0e, 0x0d, ',', '.', 0x1f, 0xff, 0x00, 0x08, 0xff, 0xff, 0xff } + } +}; + +bool const exorterm155_device::caps_table[5][17] = { + { false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false }, + { false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false }, + { false, true, true, true, true, true, true, true, true, true, true, false, false, false, false, false, false }, + { true, true, true, true, true, true, true, true, true, false, false, false, false, false, false, false, false }, + { false, true, true, true, true, true, true, true, false, false, false, false, false, false, false, false, false } +}; + +void exorterm155_device::kbd_start_processing() +{ + attotime period = attotime::from_hz(2'400); + m_kbd_processing = 1; + m_kbd_scan_timer->adjust(period, 0, period); +} + +void exorterm155_device::kbd_reset_state() +{ + std::fill(std::begin(m_kbd_states), std::end(m_kbd_states), ioport_value(0)); + m_kbd_next_row = 0; +} + +void exorterm155_device::kbd_repeat_start(uint8_t row, uint8_t column) +{ + attotime delay = attotime::from_msec(750); + attotime interval = attotime::from_msec(100); + + m_kbd_repeat_row = row; + m_kbd_repeat_column = column; + m_kbd_repeat_timer->adjust(delay, 0, interval); +} + +void exorterm155_device::kbd_repeat_restart() +{ + attotime delay = attotime::from_msec(750); + attotime interval = attotime::from_msec(100); + + if ((m_kbd_repeat_row != 0xff) || (m_kbd_repeat_column != 0xff)) + m_kbd_repeat_timer->adjust(delay, 0, interval); +} + +void exorterm155_device::kbd_repeat_stop() +{ + m_kbd_repeat_row = 0xff; + m_kbd_repeat_column = 0xff; + m_kbd_repeat_timer->reset(); +} + +void exorterm155_device::kbd_send_translated(u8 code) +{ + unsigned row = (code >> 5) & 0x07; + unsigned col = (code >> 0) & 0x1f; + + u16 modifiers = m_kbd_modifiers->read(); + bool shift = BIT(modifiers, 1) != ((modifiers & 4) && caps_table[row][col]); + bool ctrl = BIT(modifiers, 0); + + unsigned map = ctrl ? 2 : shift ? 1 : 0; + u8 result = translation_table[map][row][col]; + + if (result == 0xff) + return; + + m_term_data = result; + // Triggers on the falling edge. + m_pia_kbd->ca1_w(ASSERT_LINE); + m_pia_kbd->ca1_w(CLEAR_LINE); + m_pia_kbd->ca1_w(ASSERT_LINE); +} + +TIMER_CALLBACK_MEMBER(exorterm155_device::kbd_scan_row) +{ + u16 const modifiers(m_kbd_modifiers->read()); + if (modifiers != m_kbd_last_modifiers) + kbd_repeat_restart(); + + m_kbd_last_modifiers = modifiers; + + ioport_value &state(m_kbd_states[m_kbd_next_row]); + ioport_value const keys(m_kbd_rows[m_kbd_next_row]->read()); + ioport_value const change(state ^ keys); + + ioport_value mask(1U); + for (uint8_t column = 0U; m_kbd_processing && (state != keys); ++column, mask <<= 1) + { + if (change & mask) + { + state ^= mask; + if (keys & mask) + { + kbd_send_translated((m_kbd_next_row << 5) | column); + kbd_repeat_start(m_kbd_next_row, column); + } + else + { + if (m_kbd_repeat_row == m_kbd_next_row && m_kbd_repeat_column == column) + kbd_repeat_stop(); + } + } + } + + m_kbd_next_row = (m_kbd_next_row + 1) % 5; +} + +TIMER_CALLBACK_MEMBER(exorterm155_device::kbd_repeat) +{ + assert((m_kbd_repeat_row != 0xff) || (m_kbd_repeat_column != 0xff)); + kbd_send_translated((m_kbd_repeat_row << 5) | m_kbd_repeat_column); +} + + + + +void exorterm155_device::device_start() +{ + m_online_led.resolve(); + m_auto_lf_led.resolve(); + m_page_mode_led.resolve(); + m_insert_char_led.resolve(); + + // register for save states + save_item(NAME(m_term_data)); + save_item(NAME(m_framecnt)); + save_item(NAME(m_cursor_addr)); + save_item(NAME(m_inv_video)); + save_item(NAME(m_special_char_disp)); + + save_item(NAME(m_sys_timer_count)); + save_item(NAME(m_dsr)); + save_item(NAME(m_kbd_start_holdoff)); + + // Keyboard + m_kbd_scan_timer = timer_alloc(FUNC(exorterm155_device::kbd_scan_row), this); + m_kbd_repeat_timer = timer_alloc(FUNC(exorterm155_device::kbd_repeat), this); + kbd_reset_state(); + kbd_repeat_stop(); + + save_item(NAME(m_kbd_states)); + save_item(NAME(m_kbd_next_row)); + save_item(NAME(m_kbd_processing)); + save_item(NAME(m_kbd_repeat_row)); + save_item(NAME(m_kbd_repeat_column)); + save_item(NAME(m_kbd_last_modifiers)); + + m_dsr = 1; +} + +void exorterm155_device::device_reset() +{ + m_brg->rsa_w(CLEAR_LINE); + m_brg->rsb_w(ASSERT_LINE); + + m_online_led = 0; + m_auto_lf_led = 0; + m_page_mode_led = 0; + m_insert_char_led = 0; + + m_framecnt = 0; + m_cursor_addr = 0; + m_inv_video = 0; + m_special_char_disp = 0; + m_sys_timer_count = 0; + + m_beeper->set_state(0); + + // Keyboard + kbd_reset_state(); + kbd_repeat_stop(); + m_kbd_start_holdoff = 180; + m_kbd_last_modifiers = 0; +} + + +//************************************************************************** +// ROM DEFINITIONS +//************************************************************************** + +ROM_START( exorterm155 ) + ROM_REGION(0x10000, "maincpu", 0) + ROM_LOAD("51aw1018b25.bin", 0xa000, 0x0800, CRC(5f9352ba) SHA1(9fb52992bd3f3409fa8ec1002e2ebdf61318d260)) + ROM_LOAD("51aw1018b22.bin", 0xc000, 0x0800, CRC(b6bb9df0) SHA1(5c0bda69d94fd58c21f07c810525043cd22a9d7d)) + ROM_LOAD("51aw1018b27.bin", 0xc800, 0x0800, CRC(15f77b53) SHA1(1f73098ebf83d7255efcf2b509d12e559001ca5b)) + ROM_LOAD("51aw1018b26.bin", 0xd000, 0x0800, CRC(f5b204bc) SHA1(9815fd7d7ba617ebb3f55e595e4931d75942b6a9)) + ROM_LOAD("51aw1018b24.bin", 0xd800, 0x0800, CRC(18a0ed66) SHA1(5fa6e4b3c27969c1d7e27c79fc2993e4cc9262cf)) + + ROM_REGION(0x0800, "chargen", 0) + ROM_LOAD("chargen.rom", 0x0000, 0x0800, CRC(0087cbad) SHA1(a6d3dd0512db4c459944c60d728536755a570964) BAD_DUMP) // constructed from an apparently similar published Motorola character set + +ROM_END + +//************************************************************************** +// MACHINE DEFINTIONS +//************************************************************************** + +void exorterm155_device::device_add_mconfig(machine_config &config) +{ + M6800(config, m_maincpu, 16.6698_MHz_XTAL / 18); + m_maincpu->set_addrmap(AS_PROGRAM, &exorterm155_device::mem_map); + + INPUT_MERGER_ANY_HIGH(config, m_irqs).output_handler().set_inputline(m_maincpu, M6800_IRQ_LINE); + + SCREEN(config, m_screen, SCREEN_TYPE_RASTER); + m_screen->set_refresh_hz(50); + m_screen->set_size(80*9, 24*12); + m_screen->set_visarea(0, 80*9-1, 0, 24*12-1); + m_screen->set_screen_update(FUNC(exorterm155_device::screen_update)); + + PALETTE(config, m_palette, palette_device::MONOCHROME_HIGHLIGHT); + + GFXDECODE(config, "gfxdecode", m_palette, chars); + + config.set_default_layout(layout_exorterm155); + + ACIA6850(config, m_acia, 0); + m_acia->txd_handler().set(FUNC(exorterm155_device::acia_txd_w)); + m_acia->rts_handler().set(FUNC(exorterm155_device::acia_rts_w)); + m_acia->irq_handler().set(m_irqs, FUNC(input_merger_device::in_w<0>)); + + MC14411(config, m_brg, XTAL(1'843'200)); + m_brg->out_f<1>().set(FUNC(exorterm155_device::write_f1_clock)); + m_brg->out_f<3>().set(FUNC(exorterm155_device::write_f3_clock)); + m_brg->out_f<5>().set(FUNC(exorterm155_device::write_f5_clock)); + m_brg->out_f<6>().set(FUNC(exorterm155_device::write_f6_clock)); + m_brg->out_f<7>().set(FUNC(exorterm155_device::write_f7_clock)); + m_brg->out_f<8>().set(FUNC(exorterm155_device::write_f8_clock)); + m_brg->out_f<9>().set(FUNC(exorterm155_device::write_f9_clock)); + m_brg->out_f<11>().set(FUNC(exorterm155_device::write_f11_clock)); + m_brg->out_f<13>().set(FUNC(exorterm155_device::write_f13_clock)); + + PIA6821(config, m_pia_kbd); + m_pia_kbd->readpa_handler().set(FUNC(exorterm155_device::pia_kbd_pa_r)); + m_pia_kbd->readpb_handler().set(FUNC(exorterm155_device::pia_kbd_pb_r)); + m_pia_kbd->writepb_handler().set(FUNC(exorterm155_device::pia_kbd_pb_w)); + m_pia_kbd->irqa_handler().set(m_irqs, FUNC(input_merger_device::in_w<1>)); + m_pia_kbd->irqb_handler().set(m_irqs, FUNC(input_merger_device::in_w<2>)); + + PIA6821(config, m_pia_cfg); + m_pia_cfg->readpa_handler().set_ioport("DIP_SWITCHES_A"); + m_pia_cfg->readpb_handler().set_ioport("DIP_SWITCHES_B"); + m_pia_cfg->cb2_handler().set(FUNC(exorterm155_device::pia_cfg_cb2_w)); + m_pia_cfg->irqa_handler().set(m_irqs, FUNC(input_merger_device::in_w<3>)); + m_pia_cfg->irqb_handler().set(m_irqs, FUNC(input_merger_device::in_w<4>)); + + PIA6821(config, m_pia_disp); + m_pia_disp->writepa_handler().set(FUNC(exorterm155_device::pia_disp_pa_w)); + m_pia_disp->readpb_handler().set(FUNC(exorterm155_device::pia_disp_pb_r)); + m_pia_disp->writepb_handler().set(FUNC(exorterm155_device::pia_disp_pb_w)); + m_pia_disp->ca2_w(0); + m_pia_disp->irqa_handler().set(m_irqs, FUNC(input_merger_device::in_w<5>)); + m_pia_disp->irqb_handler().set(m_irqs, FUNC(input_merger_device::in_w<6>)); + + // Derived from the horizontal blanking, 3.4ms. + CLOCK(config, m_sys_timer_clock, 4706 / 16); + m_sys_timer_clock->signal_handler().set(FUNC(exorterm155_device::sys_timer_w)); + + SPEAKER(config, "bell").front_center(); + BEEP(config, m_beeper, 2000); + m_beeper->add_route(ALL_OUTPUTS, "bell", 0.25); +} + +ioport_constructor exorterm155_device::device_input_ports() const +{ + return INPUT_PORTS_NAME(exorterm155); +} + +const tiny_rom_entry *exorterm155_device::device_rom_region() const +{ + return ROM_NAME(exorterm155); +} + +DEFINE_DEVICE_TYPE(EXORTERM155, exorterm155_device, "exorterm155_device", "EXORTERM155") |