// license:BSD-3-Clause
// copyright-holders:Mark Garlanger
/***************************************************************************
Heathkit H19
A smart terminal designed and manufactured by Heath Company.
The keyboard consists of a 9x10 matrix connected to a MM5740AAC/N
mask-programmed keyboard controller. The output of this passes
through a rom.
Input can also come from the serial port (a 8250).
Either device will signal an interrupt to the CPU when a key
is pressed/data is received.
TODO:
- speed up emulation
- update SW401 baud rate options for Watz ROM
- update SW401 & SW402 definitions for Super-19 ROM
- update SW401 & SW402 definitions for ULTRA ROM
- add option for ULTRA ROMs second page of screen RAM
****************************************************************************/
/***************************************************************************
Memory Layout
The U435 three-to-eight line decoder uses A14 and A15 to generate three memory addresses:
1. Program ROM 0x0000
2. Scratchpad RAM 0x4000
3. Display Memory 0xF800
Port Layout
Only address lines A5, A6, A7 are used by the U442 three-to-eight line decoder
Address Description
----------------------------------------------------
0x00 Power-up configuration (primary - SW401)
0x20 Power-up configuration (secondary - SW402)
0x40 ACE (communications)
0x60 CRT controller
0x80 Keyboard encoder
0xA0 Keyboard status
0xC0 Key click enable
0xE0 Bell enable
****************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/ins8250.h"
#include "machine/mm5740.h"
#include "sound/beep.h"
#include "video/mc6845.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
// Standard H19 used a 2.048 MHz clock
#define H19_CLOCK (XTAL(12'288'000) / 6)
#define MC6845_CLOCK (XTAL(12'288'000) /8)
#define INS8250_CLOCK (XTAL(12'288'000) /4)
// Capacitor value in pF
#define H19_KEY_DEBOUNCE_CAPACITOR 5000
#define MM5740_CLOCK (mm5740_device::calc_effective_clock_key_debounce(H19_KEY_DEBOUNCE_CAPACITOR))
// Beep Frequency is 1 KHz
#define H19_BEEP_FRQ (H19_CLOCK / 2048)
#define KBDC_TAG "mm5740"
class h19_state : public driver_device
{
public:
enum
{
TIMER_KEY_CLICK_OFF,
TIMER_BELL_OFF
};
h19_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_palette(*this, "palette")
, m_maincpu(*this, "maincpu")
, m_crtc(*this, "crtc")
, m_ace(*this, "ins8250")
, m_beep(*this, "beeper")
, m_p_videoram(*this, "videoram")
, m_p_chargen(*this, "chargen")
, m_mm5740(*this, KBDC_TAG)
, m_kbdrom(*this, "keyboard")
, m_kbspecial(*this, "MODIFIERS")
{
}
void h19(machine_config &config);
private:
void h19_keyclick_w(uint8_t data);
void h19_bell_w(uint8_t data);
uint8_t kbd_key_r();
uint8_t kbd_flags_r();
DECLARE_READ_LINE_MEMBER(mm5740_shift_r);
DECLARE_READ_LINE_MEMBER(mm5740_control_r);
DECLARE_WRITE_LINE_MEMBER(mm5740_data_ready_w);
MC6845_UPDATE_ROW(crtc_update_row);
void io_map(address_map &map);
void mem_map(address_map &map);
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
virtual void machine_start() override;
required_device<palette_device> m_palette;
required_device<cpu_device> m_maincpu;
required_device<mc6845_device> m_crtc;
required_device<ins8250_device> m_ace;
required_device<beep_device> m_beep;
required_shared_ptr<uint8_t> m_p_videoram;
required_region_ptr<u8> m_p_chargen;
required_device<mm5740_device> m_mm5740;
required_memory_region m_kbdrom;
required_ioport m_kbspecial;
uint8_t m_transchar;
bool m_strobe;
bool m_keyclickactive;
bool m_bellactive;
uint16_t translate_mm5740_b(uint16_t b);
};
void h19_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
switch (id)
{
case TIMER_KEY_CLICK_OFF:
m_keyclickactive = false;
break;
case TIMER_BELL_OFF:
m_bellactive = false;
break;
default:
throw emu_fatalerror("Unknown id in h19_state::device_timer");
}
if (!m_keyclickactive && !m_bellactive)
m_beep->set_state(0);
}
void h19_state::mem_map(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0x1fff).mirror(0x2000).rom();
map(0x4000, 0x4100).mirror(0x3e00).ram();
map(0xc000, 0xc7ff).mirror(0x3800).ram().share("videoram");
}
void h19_state::io_map(address_map &map)
{
map.unmap_value_high();
map.global_mask(0xff);
map(0x00, 0x00).mirror(0x1f).portr("SW401");
map(0x20, 0x20).mirror(0x1f).portr("SW402");
map(0x40, 0x47).mirror(0x18).rw(m_ace, FUNC(ins8250_device::ins8250_r), FUNC(ins8250_device::ins8250_w));
map(0x60, 0x60).mirror(0x1E).w(m_crtc, FUNC(mc6845_device::address_w));
map(0x61, 0x61).mirror(0x1E).rw(m_crtc, FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w));
map(0x80, 0x80).mirror(0x1f).r(FUNC(h19_state::kbd_key_r));
map(0xA0, 0xA0).mirror(0x1f).r(FUNC(h19_state::kbd_flags_r));
map(0xC0, 0xC0).mirror(0x1f).w(FUNC(h19_state::h19_keyclick_w));
map(0xE0, 0xE0).mirror(0x1f).w(FUNC(h19_state::h19_bell_w));
}
/* Input ports */
static INPUT_PORTS_START( h19 )
PORT_START("MODIFIERS")
// bit 0 connects to B8 of MM5740 - low if either shift key is
// bit 7 is low if a key is pressed
PORT_BIT(0x002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CapsLock") PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE
PORT_BIT(0x004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Break") PORT_CODE(KEYCODE_PAUSE)
PORT_BIT(0x008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("OffLine") PORT_CODE(KEYCODE_F12) PORT_TOGGLE
PORT_BIT(0x010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL))
PORT_BIT(0x020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LeftShift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x040, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Repeat") PORT_CODE(KEYCODE_LALT)
PORT_BIT(0x100, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RightShift") PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x200, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Reset") PORT_CODE(KEYCODE_F10)
PORT_START("X1")
PORT_BIT(0x001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
PORT_BIT(0x002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Unused")
PORT_BIT(0x004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Unused")
PORT_BIT(0x008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Unused")
PORT_BIT(0x010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("k_X2")
PORT_BIT(0x020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Unused")
PORT_BIT(0x040, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0-pad") PORT_CODE(KEYCODE_0_PAD) PORT_CHAR('0')
PORT_BIT(0x080, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Dot-pad") PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR('.')
PORT_BIT(0x100, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Enter-pad") PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(13)
PORT_BIT(0x200, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Unused")
PORT_START("X2")
PORT_BIT(0x001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('.')
PORT_BIT(0x002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\'") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('\"')
PORT_BIT(0x004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("{") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('{') PORT_CHAR('}')
PORT_BIT(0x008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Return") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
PORT_BIT(0x010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Unused")
PORT_BIT(0x020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Unused")
PORT_BIT(0x040, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1-pad") PORT_CODE(KEYCODE_1_PAD) PORT_CHAR('1')
PORT_BIT(0x080, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2-pad") PORT_CODE(KEYCODE_2_PAD) PORT_CHAR('2')
PORT_BIT(0x100, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3-pad") PORT_CODE(KEYCODE_3_PAD) PORT_CHAR('3')
PORT_BIT(0x200, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Unused")
PORT_START("X3")
PORT_BIT(0x001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
PORT_BIT(0x002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("[") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR(']')
PORT_BIT(0x004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\\") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|')
PORT_BIT(0x008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LF") PORT_CODE(KEYCODE_RWIN)
PORT_BIT(0x010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(DEL))
PORT_BIT(0x020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Unused")
PORT_BIT(0x040, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4-pad") PORT_CODE(KEYCODE_4_PAD) PORT_CHAR('4')
PORT_BIT(0x080, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5-pad") PORT_CODE(KEYCODE_5_PAD) PORT_CHAR('5')
PORT_BIT(0x100, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6-pad") PORT_CODE(KEYCODE_6_PAD) PORT_CHAR('6')
PORT_BIT(0x200, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Unused")
PORT_START("X4")
PORT_BIT(0x001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')')
PORT_BIT(0x002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_')
PORT_BIT(0x004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("=") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+')
PORT_BIT(0x008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("AccentAcute") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`') PORT_CHAR('~')
PORT_BIT(0x010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BS") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
PORT_BIT(0x020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("k_X1")
PORT_BIT(0x040, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7-pad") PORT_CODE(KEYCODE_7_PAD) PORT_CHAR('7')
PORT_BIT(0x080, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8-pad") PORT_CODE(KEYCODE_8_PAD) PORT_CHAR('8')
PORT_BIT(0x100, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9-pad") PORT_CODE(KEYCODE_9_PAD) PORT_CHAR('9')
PORT_BIT(0x200, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Unused")
PORT_START("X5")
PORT_BIT(0x001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1)
PORT_BIT(0x002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2)
PORT_BIT(0x004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3)
PORT_BIT(0x008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4)
PORT_BIT(0x010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5)
PORT_BIT(0x020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Erase") PORT_CODE(KEYCODE_F6)
PORT_BIT(0x040, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Blue") PORT_CODE(KEYCODE_F7)
PORT_BIT(0x080, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Red") PORT_CODE(KEYCODE_F8)
PORT_BIT(0x100, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Gray") PORT_CODE(KEYCODE_F9)
PORT_BIT(0x200, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Unused")
PORT_START("X6")
PORT_BIT(0x001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
PORT_BIT(0x002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
PORT_BIT(0x004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
PORT_BIT(0x008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
PORT_BIT(0x010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
PORT_BIT(0x020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
PORT_BIT(0x040, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
PORT_BIT(0x080, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(",") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
PORT_BIT(0x100, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
PORT_BIT(0x200, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
PORT_START("X7")
PORT_BIT(0x001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
PORT_BIT(0x002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
PORT_BIT(0x004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
PORT_BIT(0x008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
PORT_BIT(0x010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
PORT_BIT(0x020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
PORT_BIT(0x040, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
PORT_BIT(0x080, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
PORT_BIT(0x100, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
PORT_BIT(0x200, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Scroll") PORT_CODE(KEYCODE_LWIN)
PORT_START("X8")
PORT_BIT(0x001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
PORT_BIT(0x002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
PORT_BIT(0x004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
PORT_BIT(0x008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
PORT_BIT(0x010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
PORT_BIT(0x020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
PORT_BIT(0x040, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
PORT_BIT(0x080, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
PORT_BIT(0x100, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
PORT_BIT(0x200, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Tab") PORT_CODE(KEYCODE_TAB) PORT_CHAR(9)
PORT_START("X9")
PORT_BIT(0x001, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
PORT_BIT(0x002, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@')
PORT_BIT(0x004, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
PORT_BIT(0x008, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
PORT_BIT(0x010, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
PORT_BIT(0x020, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^')
PORT_BIT(0x040, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&')
PORT_BIT(0x080, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*')
PORT_BIT(0x100, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(')
PORT_BIT(0x200, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Esc") PORT_CODE(KEYCODE_ESC) PORT_CHAR(27)
PORT_START("SW401")
PORT_DIPNAME( 0x0f, 0x0c, "Baud Rate")
PORT_DIPSETTING( 0x01, "110")
PORT_DIPSETTING( 0x02, "150")
PORT_DIPSETTING( 0x03, "300")
PORT_DIPSETTING( 0x04, "600")
PORT_DIPSETTING( 0x05, "1200")
PORT_DIPSETTING( 0x06, "1800")
PORT_DIPSETTING( 0x07, "2000")
PORT_DIPSETTING( 0x08, "2400")
PORT_DIPSETTING( 0x09, "3600")
PORT_DIPSETTING( 0x0a, "4800")
PORT_DIPSETTING( 0x0b, "7200")
PORT_DIPSETTING( 0x0c, "9600")
PORT_DIPSETTING( 0x0d, "19200")
PORT_DIPNAME( 0x30, 0x00, "Parity")
PORT_DIPSETTING( 0x00, DEF_STR(None))
PORT_DIPSETTING( 0x10, "Odd")
PORT_DIPSETTING( 0x30, "Even")
PORT_DIPNAME( 0x40, 0x00, "Parity Type")
PORT_DIPSETTING( 0x00, DEF_STR(Normal))
PORT_DIPSETTING( 0x40, "Stick")
PORT_DIPNAME( 0x80, 0x80, "Duplex")
PORT_DIPSETTING( 0x00, "Half")
PORT_DIPSETTING( 0x80, "Full")
PORT_START("SW402") // stored at 40C8
PORT_DIPNAME( 0x01, 0x00, "Cursor")
PORT_DIPSETTING( 0x00, "Underline")
PORT_DIPSETTING( 0x01, "Block")
PORT_DIPNAME( 0x02, 0x00, "Keyclick")
PORT_DIPSETTING( 0x02, DEF_STR(No))
PORT_DIPSETTING( 0x00, DEF_STR(Yes))
PORT_DIPNAME( 0x04, 0x00, "Wrap at EOL")
PORT_DIPSETTING( 0x00, DEF_STR(No))
PORT_DIPSETTING( 0x04, DEF_STR(Yes))
PORT_DIPNAME( 0x08, 0x00, "Auto LF on CR")
PORT_DIPSETTING( 0x00, DEF_STR(No))
PORT_DIPSETTING( 0x08, DEF_STR(Yes))
PORT_DIPNAME( 0x10, 0x00, "Auto CR on LF")
PORT_DIPSETTING( 0x00, DEF_STR(No))
PORT_DIPSETTING( 0x10, DEF_STR(Yes))
PORT_DIPNAME( 0x20, 0x00, "Mode")
PORT_DIPSETTING( 0x00, "VT52")
PORT_DIPSETTING( 0x20, "ANSI")
PORT_DIPNAME( 0x40, 0x00, "Keypad Shifted")
PORT_DIPSETTING( 0x00, DEF_STR(No))
PORT_DIPSETTING( 0x40, DEF_STR(Yes))
PORT_DIPNAME( 0x80, 0x00, "Refresh")
PORT_DIPSETTING( 0x00, "50Hz")
PORT_DIPSETTING( 0x80, "60Hz")
INPUT_PORTS_END
// Keyboard encoder masks
#define KB_ENCODER_KEY_VALUE_MASK 0x7F
#define KB_ENCODER_CONTROL_KEY_MASK 0x80
// Keyboard flag masks
#define KB_STATUS_SHIFT_KEYS_MASK 0x01
#define KB_STATUS_CAPS_LOCK_MASK 0x02
#define KB_STATUS_BREAK_KEY_MASK 0x04
#define KB_STATUS_ONLINE_KEY_MASK 0x08
#define KB_STATUS_REPEAT_KEYS_MASK 0x40
#define KB_STATUS_KEYBOARD_STROBE_MASK 0x80
void h19_state::machine_start()
{
save_item(NAME(m_transchar));
save_item(NAME(m_strobe));
save_item(NAME(m_keyclickactive));
save_item(NAME(m_bellactive));
}
void h19_state::h19_keyclick_w(uint8_t data)
{
/* Keyclick - 6 mSec */
m_beep->set_state(1);
m_keyclickactive = true;
timer_set(attotime::from_msec(6), TIMER_KEY_CLICK_OFF);
}
void h19_state::h19_bell_w(uint8_t data)
{
/* Bell (^G) - 200 mSec */
m_beep->set_state(1);
m_bellactive = true;
timer_set(attotime::from_msec(200), TIMER_BELL_OFF);
}
/***************************************************************************
MM5740 B Mapping to the ROM address
B1 -> A0 A10 = 0
B2 -> A1 A9 = 0
B3 -> A2 A8 = B8
B4 -> A3 A7 = B7
B5 -> A4 A6 = B9
B6 -> A5 A5 = B6
B7 -> A7 A4 = B5
B8 -> A8 A3 = B4
B9 -> A6 A2 = B3
ground -> A9 A1 = B2
ground -> A10 A0 = B1
****************************************************************************/
uint16_t h19_state::translate_mm5740_b(uint16_t b)
{
return ((b & 0x100) >> 2) | ((b & 0x0c0) << 1) | (b & 0x03f);
}
uint8_t h19_state::kbd_key_r()
{
m_maincpu->set_input_line(INPUT_LINE_IRQ0, CLEAR_LINE);
m_strobe = false;
// high bit is for control key pressed, this is handled in the ROM, no processing needed.
return m_transchar;
}
uint8_t h19_state::kbd_flags_r()
{
uint16_t modifiers = m_kbspecial->read();
uint8_t rv = modifiers & 0x7f;
// check both shifts
if (((modifiers & 0x020) == 0) || ((modifiers & 0x100) == 0))
{
rv |= KB_STATUS_SHIFT_KEYS_MASK;
}
// invert offline switch
rv ^= KB_STATUS_ONLINE_KEY_MASK;
if (!m_strobe)
{
rv |= KB_STATUS_KEYBOARD_STROBE_MASK;
}
return rv;
}
READ_LINE_MEMBER(h19_state::mm5740_shift_r)
{
return ((m_kbspecial->read() ^ 0x120) & 0x120) ? ASSERT_LINE : CLEAR_LINE;
}
READ_LINE_MEMBER(h19_state::mm5740_control_r)
{
return ((m_kbspecial->read() ^ 0x10) & 0x10) ? ASSERT_LINE: CLEAR_LINE;
}
WRITE_LINE_MEMBER(h19_state::mm5740_data_ready_w)
{
if (state == ASSERT_LINE)
{
uint8_t *decode = m_kbdrom->base();
m_transchar = decode[translate_mm5740_b(m_mm5740->b_r())];
m_strobe = true;
m_maincpu->set_input_line(INPUT_LINE_IRQ0, ASSERT_LINE);
}
}
MC6845_UPDATE_ROW( h19_state::crtc_update_row )
{
if (!de)
return;
const rgb_t *palette = m_palette->palette()->entry_list_raw();
uint32_t *p = &bitmap.pix32(y);
for (uint16_t x = 0; x < x_count; x++)
{
uint8_t inv = (x == cursor_x) ? 0xff : 0;
uint8_t chr = m_p_videoram[(ma + x) & 0x7ff];
if (chr & 0x80)
{
inv ^= 0xff;
chr &= 0x7f;
}
/* get pattern of pixels for that character scanline */
uint8_t gfx = m_p_chargen[(chr<<4) | ra] ^ inv;
/* Display a scanline of a character (8 pixels) */
*p++ = palette[BIT(gfx, 7)];
*p++ = palette[BIT(gfx, 6)];
*p++ = palette[BIT(gfx, 5)];
*p++ = palette[BIT(gfx, 4)];
*p++ = palette[BIT(gfx, 3)];
*p++ = palette[BIT(gfx, 2)];
*p++ = palette[BIT(gfx, 1)];
*p++ = palette[BIT(gfx, 0)];
}
}
/* F4 Character Displayer */
static const gfx_layout h19_charlayout =
{
8, 10, /* 8 x 10 characters */
128, /* 128 characters */
1, /* 1 bits per pixel */
{ 0 }, /* no bitplanes */
/* x offsets */
{ 0, 1, 2, 3, 4, 5, 6, 7 },
/* y offsets */
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8 },
8*16 /* every char takes 16 bytes */
};
static GFXDECODE_START( gfx_h19 )
GFXDECODE_ENTRY( "chargen", 0x0000, h19_charlayout, 0, 1 )
GFXDECODE_END
void h19_state::h19(machine_config &config)
{
/* basic machine hardware */
Z80(config, m_maincpu, H19_CLOCK); // From schematics
m_maincpu->set_addrmap(AS_PROGRAM, &h19_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &h19_state::io_map);
/* video hardware */
// TODO: make configurable, Heath offered 3 different CRTs - White, Green, Amber.
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER, rgb_t::green()));
screen.set_refresh_hz(60); // TODO- this is adjustable by dipswitch.
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
screen.set_screen_update("crtc", FUNC(mc6845_device::screen_update));
screen.set_size(640, 250);
screen.set_visarea(0, 640 - 1, 0, 250 - 1);
GFXDECODE(config, "gfxdecode", m_palette, gfx_h19);
PALETTE(config, "palette", palette_device::MONOCHROME);
MC6845(config, m_crtc, MC6845_CLOCK);
m_crtc->set_screen("screen");
m_crtc->set_show_border_area(true);
m_crtc->set_char_width(8);
m_crtc->set_update_row_callback(FUNC(h19_state::crtc_update_row));
m_crtc->out_vsync_callback().set_inputline(m_maincpu, INPUT_LINE_NMI); // frame pulse
ins8250_device &uart(INS8250(config, "ins8250", INS8250_CLOCK));
uart.out_int_callback().set_inputline("maincpu", INPUT_LINE_IRQ0);
MM5740(config, m_mm5740, MM5740_CLOCK);
m_mm5740->x_cb<1>().set_ioport("X1");
m_mm5740->x_cb<2>().set_ioport("X2");
m_mm5740->x_cb<3>().set_ioport("X3");
m_mm5740->x_cb<4>().set_ioport("X4");
m_mm5740->x_cb<5>().set_ioport("X5");
m_mm5740->x_cb<6>().set_ioport("X6");
m_mm5740->x_cb<7>().set_ioport("X7");
m_mm5740->x_cb<8>().set_ioport("X8");
m_mm5740->x_cb<9>().set_ioport("X9");
m_mm5740->shift_cb().set(FUNC(h19_state::mm5740_shift_r));
m_mm5740->control_cb().set(FUNC(h19_state::mm5740_control_r));
m_mm5740->data_ready_cb().set(FUNC(h19_state::mm5740_data_ready_w));
/* sound hardware */
SPEAKER(config, "mono").front_center();
BEEP(config, m_beep, H19_BEEP_FRQ).add_route(ALL_OUTPUTS, "mono", 1.00);
}
/* ROM definition */
ROM_START( h19 )
ROM_REGION( 0x2000, "maincpu", ROMREGION_ERASEFF )
// Original
ROM_LOAD( "2732_444-46_h19code.bin", 0x0000, 0x1000, CRC(f4447da0) SHA1(fb4093d5b763be21a9580a0defebed664b1f7a7b))
ROM_REGION( 0x0800, "chargen", 0 )
// Original font dump
ROM_LOAD( "2716_444-29_h19font.bin", 0x0000, 0x0800, CRC(d595ac1d) SHA1(130fb4ea8754106340c318592eec2d8a0deaf3d0))
ROM_REGION( 0x1000, "keyboard", 0 )
// Original dump
ROM_LOAD( "2716_444-37_h19keyb.bin", 0x0000, 0x0800, CRC(5c3e6972) SHA1(df49ce64ae48652346a91648c58178a34fb37d3c))
ROM_END
ROM_START( super19 )
// Super H19 ROM
ROM_REGION( 0x2000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "2732_super19_h447.bin", 0x0000, 0x1000, CRC(6c51aaa6) SHA1(5e368b39fe2f1af44a905dc474663198ab630117))
ROM_REGION( 0x0800, "chargen", 0 )
// Original font dump
ROM_LOAD( "2716_444-29_h19font.bin", 0x0000, 0x0800, CRC(d595ac1d) SHA1(130fb4ea8754106340c318592eec2d8a0deaf3d0))
ROM_REGION( 0x1000, "keyboard", 0 )
// Original dump
ROM_LOAD( "2716_444-37_h19keyb.bin", 0x0000, 0x0800, CRC(5c3e6972) SHA1(df49ce64ae48652346a91648c58178a34fb37d3c))
ROM_END
ROM_START( watz19 )
// Watzman ROM
ROM_REGION( 0x2000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "watzman.bin", 0x0000, 0x1000, CRC(8168b6dc) SHA1(bfaebb9d766edbe545d24bc2b6630be4f3aa0ce9))
ROM_REGION( 0x0800, "chargen", 0 )
// Original font dump
ROM_LOAD( "2716_444-29_h19font.bin", 0x0000, 0x0800, CRC(d595ac1d) SHA1(130fb4ea8754106340c318592eec2d8a0deaf3d0))
// Watzman keyboard
ROM_REGION( 0x1000, "keyboard", 0 )
ROM_LOAD( "keybd.bin", 0x0000, 0x0800, CRC(58dc8217) SHA1(1b23705290bdf9fc6342065c6a528c04bff67b13))
ROM_END
ROM_START( ultra19 )
// ULTRA ROM
ROM_REGION( 0x2000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "2532_h19_ultra_firmware.bin", 0x0000, 0x1000, CRC(8ad4cdb4) SHA1(d6e1fc37a1f52abfce5e9adb1819e0030bed1df3))
ROM_REGION( 0x0800, "chargen", 0 )
// Original font dump
ROM_LOAD( "2716_444-29_h19font.bin", 0x0000, 0x0800, CRC(d595ac1d) SHA1(130fb4ea8754106340c318592eec2d8a0deaf3d0))
// Watzman keyboard
ROM_REGION( 0x1000, "keyboard", 0 )
ROM_LOAD( "2716_h19_ultra_keyboard.bin", 0x0000, 0x0800, CRC(76130c92) SHA1(ca39c602af48505139d2750a084b5f8f0e662ff7))
ROM_END
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 1979, h19, 0, 0, h19, h19, h19_state, empty_init, "Heath Inc", "Heathkit H-19", MACHINE_SUPPORTS_SAVE )
//Super-19 ROM - ATG Systems, Inc - Adv in Sextant Issue 4, Winter 1983. With the magazine lead-time, likely released late 1982.
COMP( 1982, super19, h19, 0, h19, h19, h19_state, empty_init, "Heath Inc", "Heathkit H-19 w/ Super-19 ROM", MACHINE_SUPPORTS_SAVE )
// Watzman ROM - HUG p/n 885-1121, announced in REMark Issue 33, Oct. 1982
COMP( 1982, watz19, h19, 0, h19, h19, h19_state, empty_init, "Heath Inc", "Heathkit H-19 w/ Watzman ROM", MACHINE_SUPPORTS_SAVE )
// ULTRA ROM - Software Wizardry, Inc., (c) 1983 William G. Parrott, III
COMP( 1983, ultra19, h19, 0, h19, h19, h19_state, empty_init, "Heath Inc", "Heathkit H-19 w/ ULTRA ROM", MACHINE_SUPPORTS_SAVE )