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Diffstat (limited to 'src/mame/drivers/decwritr.cpp')
-rw-r--r--src/mame/drivers/decwritr.cpp485
1 files changed, 0 insertions, 485 deletions
diff --git a/src/mame/drivers/decwritr.cpp b/src/mame/drivers/decwritr.cpp
deleted file mode 100644
index bcd83f09b89..00000000000
--- a/src/mame/drivers/decwritr.cpp
+++ /dev/null
@@ -1,485 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Jonathan Gevaryahu
-/*************************************************************************
-
- decwritr.c
- Digital Equipment Corporation
- DECwriter III (LA120) Teletype/Teleprinter, 1978
-
-**************************************************************************/
-
-// tech manual: http://manx.classiccmp.org/mirror/vt100.net/docs/la120-tm/la120tm1.pdf
-
-#include "emu.h"
-#include "cpu/i8085/i8085.h"
-#include "machine/74259.h"
-#include "machine/er1400.h"
-#include "machine/i8251.h"
-#include "sound/beep.h"
-#include "render.h"
-#include "speaker.h"
-
-
-#define KBD_VERBOSE 1
-#define LED_VERBOSE 0
-#define DC305_VERBOSE 0
-
-//**************************************************************************
-// DRIVER STATE
-//**************************************************************************
-
-class decwriter_state : public driver_device
-{
-public:
- // constructor
- decwriter_state(const machine_config &mconfig, device_type type, const char *tag) :
- driver_device(mconfig, type, tag),
- m_maincpu(*this, "maincpu"),
- m_speaker(*this, "beeper"),
- m_usart(*this, "usart"),
- m_nvm(*this, "nvm"),
- m_ledlatch(*this, "ledlatch")
- {
- }
-
- void la120(machine_config &config);
-private:
- uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
- {
- bitmap.fill(rgb_t::black(), cliprect);
- return 0;
- }
- DECLARE_READ8_MEMBER(la120_KBD_r);
- DECLARE_WRITE8_MEMBER(la120_LED_w);
- DECLARE_READ8_MEMBER(la120_NVR_r);
- DECLARE_WRITE8_MEMBER(la120_NVR_w);
- DECLARE_READ8_MEMBER(la120_DC305_r);
- DECLARE_WRITE8_MEMBER(la120_DC305_w);
-
- void la120_io(address_map &map);
- void la120_mem(address_map &map);
-
- virtual void machine_start() override;
- //virtual void machine_reset();
-
- required_device<cpu_device> m_maincpu;
- required_device<beep_device> m_speaker;
- required_device<i8251_device> m_usart;
- required_device<er1400_device> m_nvm;
- required_device<ls259_device> m_ledlatch;
-
- ioport_port* m_col_array[16];
- uint8_t m_led_7seg_counter;
- uint8_t m_led_7seg[4];
-};
-
-READ8_MEMBER( decwriter_state::la120_KBD_r )
-{
- /* for reading the keyboard array, addr bits 5-11 are ignored.
- * a15 a14 a13 a12 a11 a10 a9 a8 a7 a6 a5 a4 a3 a2 a1 a0
- * 0 0 1 1 x x x x x x x * * * * *
- * | | \---\---\--- column select
- * | \--------------- kbd_banksel0
- * \------------------- kbd_banksel1
- * if both banks are selected, the resulting row read is a binary OR of both (LA120-TM1, page 4-5)
- *
- * d7 d6 d5 d4 d3 d2 d1 d0
- * \--\--\--\--\--\--\--\-- read from rows
- */
- uint8_t code = 0;
- if (offset&0x8) code |= m_col_array[offset&0x7]->read();
- if (offset&0x10) code |= m_col_array[(offset&0x7)+8]->read();
- if (KBD_VERBOSE)
- logerror("Keyboard column %X read, returning %02X\n", offset&0xF, code);
- return code;
-}
-
-WRITE8_MEMBER( decwriter_state::la120_LED_w )
-{
- /* for writing the keyboard array, addr bits 5-11 are ignored.
- * a15 a14 a13 a12 a11 a10 a9 a8 a7 a6 a5 a4 a3 a2 a1 a0
- * 0 0 1 1 x x x x x x x 0 * * * 0 turn OFF LED # <a3:a1> and clear 7seg counter
- * 0 0 1 1 x x x x x x x 0 * * * 1 turn ON LED # <a3:a1> and clear 7seg counter
- * 0 0 1 1 x x x x x x x 1 * * * * display a digit <a3:a0> in the digit pointed to by 7seg counter and increment counter
- * data bus is UNUSED.
- */
- if (!(offset&0x10)) // we're updating an led state
- {
- if (LED_VERBOSE)
- logerror("Updated LED status array: LED #%d is now %d\n", ((offset&0xe)>>1), (offset&1));
- m_ledlatch->write_bit((~offset & 0xe) >> 1, !BIT(offset, 0));
- m_led_7seg_counter = 0;
- }
- else // we're updating the 7segment display
- {
- m_led_7seg_counter++;
- m_led_7seg_counter &= 0xF;
- if (LED_VERBOSE)
- logerror("Updated 7seg display: displaying a digit of %d in position %d\n", (offset&0xF)^0xF, m_led_7seg_counter-1);
- if ((m_led_7seg_counter >= 1) && (m_led_7seg_counter <= 4))
- {
- m_led_7seg[m_led_7seg_counter-1] = (offset&0xF)^0xF;
- }
- }
- popmessage("LEDs: %c %c %c %c : %s %s %s %s %s %s %s %s\n",
- m_led_7seg[3]+0x30, m_led_7seg[2]+0x30, m_led_7seg[1]+0x30, m_led_7seg[0]+0x30,
- (!m_ledlatch->q0_r())?"ON LINE":"-------",
- (!m_ledlatch->q1_r())?"LOCAL":"-----",
- (!m_ledlatch->q2_r())?"ALT CHR SET":"-----------",
- (!m_ledlatch->q3_r())?"<LED4>":"-----",
- (!m_ledlatch->q4_r())?"CTS":"---",
- (!m_ledlatch->q5_r())?"DSR":"---",
- (!m_ledlatch->q6_r())?"SET-UP":"------",
- (!m_ledlatch->q7_r())?"PAPER OUT":"---------" );
-}
-
-/* control lines:
- 3 2 1
- 0 0 0 Standby
- 0 0 1 Read
- 0 1 0 Erase
- 0 1 1 Write
- 1 0 0 <unused>
- 1 0 1 Shift data out
- 1 1 0 Accept address
- 1 1 1 Accept data
- */
-READ8_MEMBER( decwriter_state::la120_NVR_r )
-{
- // one wait state inserted
- if (!machine().side_effects_disabled())
- m_maincpu->adjust_icount(-1);
-
- return (!m_nvm->data_r() << 7) | 0x7f;
-}
-
-WRITE8_MEMBER( decwriter_state::la120_NVR_w )
-{
- // one wait state inserted
- if (!machine().side_effects_disabled())
- m_maincpu->adjust_icount(-1);
-
- // ER1400 has negative logic, but 7406 inverters are used
- m_nvm->c3_w(BIT(offset, 10));
- m_nvm->c2_w(BIT(offset, 9));
- m_nvm->c1_w(BIT(offset, 8));
-
- // FIXME: clock line shouldn't be inverted relative to C1-C3, but accesses only seems to work this way
- m_nvm->clock_w(!BIT(offset, 0));
-
- // C2 is used to disable pullup on data line
- m_nvm->data_w(!BIT(offset, 9) ? 0 : !BIT(data, 7));
-}
-
-/* todo: fully reverse engineer DC305 ASIC */
-/* read registers: all 4 registers read the same set of 8 bits, but what register is being read may be selectable by writing
- Tech manual implies this register is an 8-bit position counter of where the carriage head currently is located.
- 0 = 1 = 2 = 3
- data bits:
- 76543210
- |||||||\- ?
- ||||||\-- ?
- |||||\--- ?
- ||||\---- ?
- |||\----- ?
- ||\------ ?
- |\------- ?
- \-------- ?
- */
-READ8_MEMBER( decwriter_state::la120_DC305_r )
-{
- // one wait state inserted
- if (!machine().side_effects_disabled())
- m_maincpu->adjust_icount(-1);
-
- uint8_t data = 0x00;
- if (DC305_VERBOSE)
- logerror("DC305 Read from offset %01x, returning %02X\n", offset, data);
- return data;
-}
-/* write registers:
- 0 = ? (a bunch of data written here on start, likely motor control and setup bits)
- 1 = ? (one byte written here, possibly voltage control, 0x00 or could be dot fifo write?)
- 2 = ?
- 3 = ?
- there are at least two bits in here to enable the 2.5ms tick interrupt(rst3) and the dot interrupt/linefeed(rtc expired) interrupt(rst5)
- the dot fifo is 4 bytes long, dot int fires when it is half empty
- at least 3 bits control the speaker/buzzer which can be on or off, at least two volume levels, and at least two frequencies, 400hz or 2400hz
- two quadrature lines from the head servomotor connect here to allow the dc305 to determine motor position; one pulses when the motor turns clockwise and one when it turns counterclockwise. the head stop is found when the pulses stop, which firmware uses to find the zero position.
- */
-WRITE8_MEMBER( decwriter_state::la120_DC305_w )
-{
- // one wait state inserted
- if (!machine().side_effects_disabled())
- m_maincpu->adjust_icount(-1);
-
- if (DC305_VERBOSE)
- logerror("DC305 Write of %02X to offset %01X\n", data, offset);
-}
-
-/*
- * 8080 address map (x = ignored; * = selects address within this range)
- a15 a14 a13 a12 a11 a10 a9 a8 a7 a6 a5 a4 a3 a2 a1 a0
- 0 0 0 0 * * * * * * * * * * * * R ROMS0 (e6 first half OR e6,e8)
- 0 0 0 1 * * * * * * * * * * * * R ROMS1 (e6 second half OR e12,e17)
- 0 0 1 0 0 * * * * * * * * * * * R ROMS2 (e4)
- 0 0 1 0 1 * * * * * * * * * * * R ROMS2 (open bus)
- 0 0 1 1 x x x x x x x * * * * * RW KBD(R)/LED(W)
- 0 1 0 0 x x * * * * * * * * * * RW RAM0 (e7,e13)
- 0 1 0 1 x x * * * * * * * * * * RW RAM1 (e9,e18)
- 0 1 1 0 x * * * x x x x x x x * RW NVM (ER1400,e39)
- 0 1 1 1 x x x x x x x x x x * * RW PTR (DC305 ASIC,e25)
- 1 * * * * * * * * * * * * * * * Expansion space (open bus)
- */
-void decwriter_state::la120_mem(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0x27ff).rom();
- map(0x3000, 0x301f).rw(FUNC(decwriter_state::la120_KBD_r), FUNC(decwriter_state::la120_LED_w)).mirror(0xFE0); // keyboard read, write to status and 7seg LEDS
- map(0x4000, 0x43ff).mirror(0x0c00).ram(); // 1k 'low ram'
- map(0x5000, 0x53ff).mirror(0x0c00).ram(); // 1k 'high ram'
- map(0x6000, 0x67ff) /*.mirror(0x08fe)*/ .mirror(0x800).rw(FUNC(decwriter_state::la120_NVR_r), FUNC(decwriter_state::la120_NVR_w)); // ER1400 EAROM; a10,9,8 are c3,2,1, a0 is clk, data i/o on d7, d0 always reads as 0 (there may have once been a second er1400 with data i/o on d0, sharing same address controls as the d7 one, not populated on shipping boards), d1-d6 read open bus
- map(0x7000, 0x7003).mirror(0x0ffc).rw(FUNC(decwriter_state::la120_DC305_r), FUNC(decwriter_state::la120_DC305_w)); // DC305 printer controller ASIC stuff; since this can generate interrupts (dot interrupt, lf interrupt, 2.5ms interrupt) this needs to be split to its own device.
- // 8000-ffff is reserved for expansion (i.e. unused, open bus)
-}
-
-/*
- * 8080 IO address map (x = ignored; * = selects address within this range)
- * (a15 to a8 are latched the same value as a7-a0 on the 8080 and 8085)
- a7 a6 a5 a4 a3 a2 a1 a0
- 0 x x x x x 0 0 RW 8251 Data
- 0 x x x x x 0 1 RW 8251 Status/Control
- 0 x x x x x 1 x RW Flags Read/Write
- 1 x x x x x x x RW Expansion (Open bus)
- */
-void decwriter_state::la120_io(address_map &map)
-{
- map.unmap_value_high();
- map(0x00, 0x01).mirror(0x7C).rw(m_usart, FUNC(i8251_device::read), FUNC(i8251_device::write)); // 8251 Status/Control
- //map(0x02, 0x02).mirror(0x7D); // other io ports, serial loopback etc, see table 4-9 in TM
- // 0x80-0xff are reserved for expansion (i.e. unused, open bus)
- map.global_mask(0xff);
-}
-
-/* Input ports */
-static INPUT_PORTS_START( la120 )
- PORT_START("COL0")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num .") PORT_CODE(KEYCODE_DEL_PAD)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("PF4") PORT_CODE(KEYCODE_F4)
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Local LF") PORT_CODE(KEYCODE_F12)
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Break") PORT_CODE(KEYCODE_F6)
- PORT_BIT(0x60, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
- PORT_START("COL1")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("PF3") PORT_CODE(KEYCODE_F3)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Local FF") PORT_CODE(KEYCODE_F11)
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("\\ |") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|')
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Delete") PORT_CODE(KEYCODE_DEL) PORT_CHAR(127)
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Backspace") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
- PORT_BIT(0x60, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) // this is actually the cover open interlock sensor
- PORT_START("COL2")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("PF2") PORT_CODE(KEYCODE_F2)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("HERE IS") PORT_CODE(KEYCODE_F10)
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("(alternate) Opt LF") PORT_CODE(KEYCODE_RALT)
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("` ~") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`') PORT_CHAR('~')
- PORT_BIT(0x60, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) // this is actually the paper out interlock sensor
- PORT_START("COL3")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("PF1") PORT_CODE(KEYCODE_F1)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LF") PORT_CODE(KEYCODE_LALT) PORT_CHAR(10)
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LINE LOCAL") PORT_CODE(KEYCODE_F9)
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("] }") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}')
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("= +") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+')
- PORT_BIT(0x60, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
- PORT_START("COL4")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num -") PORT_CODE(KEYCODE_MINUS_PAD)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num ,") PORT_CODE(KEYCODE_PLUS_PAD)
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("' \"") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"')
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("[ {") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{')
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("- _") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_')
- PORT_BIT(0x60, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_TOGGLE PORT_NAME("Caps lock") PORT_CODE(KEYCODE_CAPSLOCK) // This key has a physical toggle
- PORT_START("COL5")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 0") PORT_CODE(KEYCODE_0_PAD)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("/ ?") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("; :") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':')
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0 )") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')')
- PORT_BIT(0x60, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
- PORT_START("COL6")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 9") PORT_CODE(KEYCODE_9_PAD)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(". >") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9 (") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(')
- PORT_BIT(0x60, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Return") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
- PORT_START("COL7")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 8") PORT_CODE(KEYCODE_8_PAD)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(", <") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8 *") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*')
- PORT_BIT(0x60, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Set Up") PORT_CODE(KEYCODE_F5)
- PORT_START("COL8")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 7") PORT_CODE(KEYCODE_7_PAD)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7 &") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&')
- PORT_BIT(0xe0, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_START("COL9")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 6") PORT_CODE(KEYCODE_6_PAD)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6 ^") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^')
- PORT_BIT(0xe0, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_START("COLA")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 5") PORT_CODE(KEYCODE_5_PAD)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5 %") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
- PORT_BIT(0xe0, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_START("COLB")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 4") PORT_CODE(KEYCODE_4_PAD)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4 $") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
- PORT_BIT(0xe0, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_START("COLC")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 3") PORT_CODE(KEYCODE_3_PAD)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3 #") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
- PORT_BIT(0xe0, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_START("COLD")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 2") PORT_CODE(KEYCODE_2_PAD)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2 @") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@')
- PORT_BIT(0xe0, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_START("COLE")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 1") PORT_CODE(KEYCODE_1_PAD)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1 !") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
- PORT_BIT(0xe0, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_START("COLF")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num Enter") PORT_CODE(KEYCODE_ENTER_PAD)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED) // this is actually the RO flag
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("View") PORT_CODE(KEYCODE_LWIN)
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Tab") PORT_CODE(KEYCODE_TAB) PORT_CHAR(9)
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Esc") PORT_CODE(KEYCODE_ESC) PORT_CHAR(27)
- PORT_BIT(0xe0, IP_ACTIVE_HIGH, IPT_UNUSED)
-INPUT_PORTS_END
-
-void decwriter_state::machine_start()
-{
- char kbdcol[8];
- // look up all 16 tags 'the slow way' but only once on reset
- for (int i = 0; i < 16; i++)
- {
- sprintf(kbdcol,"COL%X", i);
- m_col_array[i] = ioport(kbdcol);
- }
- m_led_7seg_counter = 0;
- m_led_7seg[0] = m_led_7seg[1] = m_led_7seg[2] = m_led_7seg[3] = 0xF;
-}
-
-/*
-void decwriter_state::machine_reset()
-{
-}
-*/
-
-//**************************************************************************
-// MACHINE DRIVERS
-//**************************************************************************
-
-void decwriter_state::la120(machine_config &config)
-{
- I8080A(config, m_maincpu, XTAL(18'000'000) / 9); // 18Mhz xtal on schematics, using an i8224 clock divider/reset sanitizer IC
- m_maincpu->set_addrmap(AS_PROGRAM, &decwriter_state::la120_mem);
- m_maincpu->set_addrmap(AS_IO, &decwriter_state::la120_io);
- //m_maincpu->set_irq_acknowledge_callback("prtlsi", FUNC(dc305_device::inta_cb));
-
- /* video hardware */
- //TODO: no actual screen! has 8 leds above the keyboard (similar to vt100/vk100) and has 4 7segment leds for showing an error code.
- screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
- screen.set_screen_update(FUNC(decwriter_state::screen_update));
- screen.set_size(640,480);
- screen.set_visarea_full();
- screen.set_refresh_hz(30);
-
- //dc305_device &prtlsi(DC305(config, "prtlsi", XTAL(18'000'000) / 9));
- //prtlsi.out_rxc_cb().set("usart", FUNC(i8251_device, write_rxc));
- //prtlsi.out_txc_cb().set("usart", FUNC(i8251_device, write_txc));
- //prtlsi.out_int_cb().set("mainint", FUNC(input_merger_device::in_w<0>));
-
- LS259(config, m_ledlatch); // E2 on keyboard
- m_ledlatch->q_out_cb<0>().set_output("led1").invert(); // ON LINE
- m_ledlatch->q_out_cb<1>().set_output("led2").invert(); // LOCAL
- m_ledlatch->q_out_cb<2>().set_output("led3").invert(); // ALT CHAR SET
- m_ledlatch->q_out_cb<3>().set_output("led4").invert();
- m_ledlatch->q_out_cb<4>().set_output("led5").invert(); // CTS
- m_ledlatch->q_out_cb<5>().set_output("led6").invert(); // DSR
- m_ledlatch->q_out_cb<6>().set_output("led7").invert(); // SETUP
- m_ledlatch->q_out_cb<7>().set_output("led8").invert(); // PAPER OUT
-
- //config.set_default_layout(layout_la120);
-
- /* audio hardware */
- SPEAKER(config, "mono").front_center();
- BEEP(config, m_speaker, 786).add_route(ALL_OUTPUTS, "mono", 0.50); // TODO: LA120 speaker is controlled by asic; VT100 has: 7.945us per serial clock = ~125865.324hz, / 160 clocks per char = ~ 786 hz
-
- /* i8251 */
- I8251(config, "usart", XTAL(18'000'000) / 9);
- /*
- usart.txd_handler().set(RS232_TAG, FUNC(rs232_port_device::write_txd));
- usart.dtr_handler().set(RS232_TAG, FUNC(rs232_port_device::write_dtr));
- usart.rts_handler().set(RS232_TAG, FUNC(rs232_port_device::write_rts));
- usart.rxrdy_handler().set("mainint", FUNC(input_merger_device::in_w<1>));
-
- INPUT_MERGER_ANY_HIGH(config, "mainint").output_handler().set_inputline(m_maincpu, 0);
-
- rs232_port_device &rs232(RS232_PORT(config, RS232_TAG, default_rs232_devices, nullptr));
- rs232.rxd_handler().set("usart", FUNC(i8251_device::write_rxd));
- rs232.dsr_handler().set("usart", FUNC(i8251_device::write_dsr));
- */
-
- ER1400(config, m_nvm);
-}
-
-
-
-//**************************************************************************
-// ROM DEFINITIONS
-//**************************************************************************
-
-ROM_START( la120 )
- ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
- // later romset, with 23-003e2.e6, 23-004e2.e8, 23-005e2.e12, 23-006e2.e17 replaced by one rom, 23-038e4.e6 which may be a concatenation of the old roms, unclear.
- ROM_LOAD( "23-038e4-00.e6", 0x0000, 0x2000, CRC(cad4eb09) SHA1(d5db117da363d36817476f906251ea4ee1cb14b8))
- ROM_LOAD( "23-007e2-00.e4", 0x2000, 0x0800, CRC(41eaebf1) SHA1(c7d05417b24b853280d1636776d399a0aea34720)) // used by both earlier and later romset
- // there is an optional 3 roms, european and APL (and BOTH) rom which goes from 2000-2fff in e4, all undumped.
- // there is another romset used on the Bell Teleprinter 1000 (Model LAS12) which I believe is 23-004e4.e6 and 23-086e2.e4
-ROM_END
-
-
-//**************************************************************************
-// DRIVERS
-//**************************************************************************
-/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
-COMP( 1978, la120, 0, 0, la120, la120, decwriter_state, empty_init, "Digital Equipment Corporation", "DECwriter III (LA120)", MACHINE_IS_SKELETON )