diff options
Diffstat (limited to 'src/mame/machine/alfaskop_s41_kb.cpp')
-rw-r--r-- | src/mame/machine/alfaskop_s41_kb.cpp | 397 |
1 files changed, 397 insertions, 0 deletions
diff --git a/src/mame/machine/alfaskop_s41_kb.cpp b/src/mame/machine/alfaskop_s41_kb.cpp new file mode 100644 index 00000000000..733914d636e --- /dev/null +++ b/src/mame/machine/alfaskop_s41_kb.cpp @@ -0,0 +1,397 @@ +// license:BSD-3-Clause +// copyright-holders: Joakim Larsson Edström +/********************************************************************** + + Alfaskop 4110 keyboard, emulation of the KeyBoard Unit KBU 4140. which often + was attached to the numerical Keyboard eXpansion Unit KXE 4141 which is not + emulated yet. There is also an optional Magnetic Identification Device MID 4131 + + TTL-level bi-directional serial matrix keyboard + + The KBU 4140 keyboard is controlled by a MC6802@3'579'000Hz in combo with a MC6846. + The key matrix is scanned with the help of two 74LS164 which is also extended to the + KXE 4141. The columns are read through a 74LS240. There are 8 LEDs which are + latched by a 74LS374. The I/O port on the MC6846 is connected to a magnet strip + reader through a MIA interface + + The keyboard serial interface line is interpreted and generated by the timer in + the MC6846 where both TX and Rx shares the same line on the keyboard side. The + keyboard remains silent until spoken to by the host computer to avoid collisions. + + Credits + ------- + The MC6846 ROM and address decoder ROM were dumped by Dalby Datormuseum whom + also provided documentation and schematics of the keyboard + + https://sites.google.com/site/dalbydatormuseum/home + + **********************************************************************/ + +#include "emu.h" +#include "alfaskop_s41_kb.h" +#include "cpu/m6800/m6800.h" + +//************************************************************************** +// CONFIGURABLE LOGGING +//************************************************************************** +#define LOG_IRQ (1U << 1) +#define LOG_RESET (1U << 2) +#define LOG_BITS (1U << 3) +#define LOG_UI (1U << 4) +#define LOG_LEDS (1U << 5) +#define LOG_ROM (1U << 6) +#define LOG_ADEC (1U << 7) +#define LOG_IO (1U << 8) + +//#define VERBOSE (LOG_GENERAL|LOG_IO|LOG_IRQ|LOG_LEDS|LOG_BITS|LOG_RESET) +//#define LOG_OUTPUT_STREAM std::cout + +#include "logmacro.h" + +#define LOGIRQ(...) LOGMASKED(LOG_IRQ, __VA_ARGS__) +#define LOGRST(...) LOGMASKED(LOG_RESET, __VA_ARGS__) +#define LOGBITS(...) LOGMASKED(LOG_BITS, __VA_ARGS__) +#define LOGUI(...) LOGMASKED(LOG_UI, __VA_ARGS__) +#define LOGLEDS(...) if (!machine().side_effects_disabled()) LOGMASKED(LOG_LEDS, __VA_ARGS__) +#define LOGROM(...) if (!machine().side_effects_disabled()) LOGMASKED(LOG_ROM, __VA_ARGS__) +#define LOGADEC(...) if (!machine().side_effects_disabled()) LOGMASKED(LOG_ADEC, __VA_ARGS__) +#define LOGIO(...) if (!machine().side_effects_disabled()) LOGMASKED(LOG_IO, __VA_ARGS__) + +//************************************************************************** +// MACROS / CONSTANTS +//************************************************************************** + +#define M6800_TAG "mcu" + +namespace { + +INPUT_PORTS_START(alfaskop_s41_kb) + PORT_START("P15") + PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 6") PORT_CODE(KEYCODE_6_PAD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR('6') PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) // 77 + PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP +") PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR('+') // 78 + PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 5") PORT_CODE(KEYCODE_5_PAD) PORT_CHAR('5') // 76 + PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("* PRINT") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('*') PORT_CHAR(UCHAR_MAMEKEY(PRTSCR)) // 55 + PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("R Shift") PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) // 54 + PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') // 53 + PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(". :") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR(':') // 52 + PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F5") PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5)) // 63 + PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F6") PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6)) // 64 + PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_UNUSED ) // no scancode is sent + PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) // 29 + PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(", ;") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR(';') // 51 + PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_CHAR('d') // 32 + PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_CHAR('x') // 45 + PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_CHAR('c') // 46 + PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_CHAR('j') // 36 + + PORT_START("P14") + PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_UNUSED ) // 00 - keyboard error + PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BREAK") PORT_CODE(KEYCODE_PAUSE) PORT_CHAR(UCHAR_MAMEKEY(PAUSE)) // 70 + PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 7") PORT_CODE(KEYCODE_7_PAD) PORT_CHAR('7') PORT_CHAR(UCHAR_MAMEKEY(HOME)) // 71 + PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_UNUSED ) // ff - keyboard error + PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('^') PORT_CHAR('~') PORT_CHAR(']') // 27 + PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR(0x00e5) PORT_CHAR(0x00c5) PORT_CHAR('[') // 26 å Å + PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_CHAR('p') // 25 + PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F1") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) // 59 + PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F2") PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) // 60 + PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') // 17 + PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') // 18 + PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') // 24 + PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') // 19 + PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') // 20 + PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') // 21 + PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') // 23 + + PORT_START("P13") + PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_NUMLOCK) PORT_CHAR(UCHAR_MAMEKEY(NUMLOCK)) // 69 + PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_UNUSED ) // ff - keyboard error + PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BS DEL") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_CHAR(UCHAR_MAMEKEY(DEL)) // 14 + PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+') // 13 + PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') // 12 + PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') // 11 + PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') // 10 + PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') // 02 + PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) // 01 + PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') // 03 + PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') // 04 + PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') // 09 + PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') // 05 + PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') // 06 + PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') // 07 + PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') // 08 + + PORT_START("P12") + PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 9") PORT_CODE(KEYCODE_9_PAD) PORT_CHAR('9') PORT_CHAR(UCHAR_MAMEKEY(PGUP)) // 73 + PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP -") PORT_CODE(KEYCODE_MINUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(MINUS_PAD)) // 74 + PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 8") PORT_CODE(KEYCODE_8_PAD) PORT_CODE(KEYCODE_UP) PORT_CHAR('8') PORT_CHAR(UCHAR_MAMEKEY(UP)) // 72 + PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`') PORT_CHAR('~') // 41 + PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"') // 40 + PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') // 39 + PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') // 38 + PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F3") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) // 61 + PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F4") PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) // 62 + PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') // 16 + PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR(9) // 15 + PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') // 37 + PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') // 33 + PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') // 34 + PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') // 35 + PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') // 22 + + PORT_START("P11") + PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR(UCHAR_MAMEKEY(COMMA_PAD)) // 83 + PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) // 28 + PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 0") PORT_CODE(KEYCODE_0_PAD) PORT_CHAR('0') PORT_CHAR(UCHAR_MAMEKEY(INSERT)) // 82 + PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_UNUSED ) // 89 - no key + PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_UNUSED ) // 86 - no key + PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_UNUSED ) // 87 - no key + PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNUSED ) // 88 - no key + PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F9") PORT_CODE(KEYCODE_F9) PORT_CHAR(UCHAR_MAMEKEY(F9)) // 67 + PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F10") PORT_CODE(KEYCODE_F10) PORT_CHAR(UCHAR_MAMEKEY(F10)) // 68 + PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_UNUSED ) // scan code ff - keyboard error + PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') // 43 + PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CAPS LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) // 58 + PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SHIFT LOCK") PORT_CODE(KEYCODE_LALT) // 56 + PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_UNUSED ) // 85 - no key + PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') // 47 + PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') // 57 + + PORT_START("P10") + PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 3") PORT_CODE(KEYCODE_3_PAD) PORT_CODE(KEYCODE_PGDN) // 81 + PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_UNUSED ) // ff - keyboard error + PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 2") PORT_CODE(KEYCODE_2_PAD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) // 80 + PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("NEW LINE") PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(UCHAR_MAMEKEY(ENTER_PAD)) // 84 (programmable, default is 28) + PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 1") PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD)) // 79 + PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 4") PORT_CODE(KEYCODE_4_PAD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR('4') PORT_CHAR(UCHAR_MAMEKEY(LEFT)) // 75 + PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNUSED ) // ff - keyboard error + PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F7") PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7)) // 65 + PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F8") PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8)) // 66 + PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) // 42 + PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') // 44 + PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') // 50 + PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') // 30 + PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') // 31 + PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') // 48 + PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') // 49 +INPUT_PORTS_END + + +//------------------------------------------------- +// ROM( alfaskop_s41_kb ) +//------------------------------------------------- + +ROM_START( alfaskop_s41_kb ) + ROM_REGION( 0x800, M6800_TAG, 0 ) + ROM_LOAD( "kbc_e34066_0000_ic3.bin", 0x000, 0x800, CRC(a1232241) SHA1(45d1b038bfbd04e1b7e3718a27202280c5257989) ) + ROM_REGION( 0x20, "ad_rom", 0 ) // Address decoder + ROM_LOAD( "kbc_e34066_0000_ic4_e3405970280400.bin", 0x00, 0x20, CRC(f26acca3) SHA1(ac8c607d50bb588c1da4ad1602665c785ebd29b3) ) +ROM_END + +} // anonymous namespace + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +DEFINE_DEVICE_TYPE(ALFASKOP_S41_KB, alfaskop_s41_keyboard_device, "alfaskop_s41_kb", "Alfaskop 4110 keyboard") + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// alfaskop_s41_keyboard_device - constructor +//------------------------------------------------- + +alfaskop_s41_keyboard_device::alfaskop_s41_keyboard_device( + machine_config const &mconfig, + char const *tag, + device_t *owner, + uint32_t clock) + : device_t(mconfig, ALFASKOP_S41_KB, tag, owner, clock) + , m_mcu(*this, M6800_TAG) + , m_mc6846(*this, "mc6846") + , m_rows(*this, "P1%u", 0) + , m_txd_cb(*this) + , m_leds_cb(*this) + , m_rxd_high(true) + , m_txd_high(true) + , m_hold(true) + , m_col_select(0) + , m_p1(0) + , m_leds(0) +{ +} + +WRITE_LINE_MEMBER(alfaskop_s41_keyboard_device::rxd_w) +{ + LOGBITS("KBD bit presented: %d\n", state); + //m_rxd_high = CLEAR_LINE != state; +} + +// WRITE_LINE_MEMBER(alfaskop_s41_keyboard_device::hold_w) +// { +// m_hold = CLEAR_LINE == state; +// } + +WRITE_LINE_MEMBER(alfaskop_s41_keyboard_device::rst_line_w) +{ + if (state == CLEAR_LINE) + { + m_mcu->set_input_line(INPUT_LINE_RESET, CLEAR_LINE); + LOGRST("KBD: Keyboard mcu reset line is cleared\n"); + } + else + { + m_mcu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE); + LOGRST("KBD: Keyboard mcu reset line is asserted\n"); + } +} + +//------------------------------------------------- +// device_start - device specific startup +//------------------------------------------------- + +void alfaskop_s41_keyboard_device::device_start() +{ + m_txd_cb.resolve_safe(); + m_leds_cb.resolve_safe(); + + save_item(NAME(m_rxd_high)); + save_item(NAME(m_txd_high)); + save_item(NAME(m_col_select)); + + m_rxd_high = true; + m_txd_high = true; + m_col_select = 0; +} + + + +//------------------------------------------------- +// device_add_mconfig - add device configuration +//------------------------------------------------- + +void alfaskop_s41_keyboard_device::device_add_mconfig(machine_config &config) +{ + M6802(config, m_mcu, XTAL(3'579'545)); // Crystal verified from schematics + m_mcu->set_addrmap(AS_PROGRAM, &alfaskop_s41_keyboard_device::alfaskop_s41_kb_mem); + + MC6846(config, m_mc6846, XTAL(3'579'545) / 4); // Driven by E from 6802 == XTAL / 4 + m_mc6846->irq().set([this](bool state) + { + LOGIRQ(" [timer IRQ: %s] ", state == ASSERT_LINE ? "asserted" : "cleared"); + m_mcu->set_input_line(M6802_IRQ_LINE, state); + }); + m_mc6846->cp2().set([this](bool state){ LOG("CP2:%d\n", state); }); + // MIA ID interrupt: m_mc6846->set_input_cp1(1); + m_mc6846->cto().set([this](bool state){ LOG("CTO:%d\n", state); }); // Not connected to anything +} + +//------------------------------------------------- +// input_ports - device-specific input ports +//------------------------------------------------- + +ioport_constructor alfaskop_s41_keyboard_device::device_input_ports() const +{ + return INPUT_PORTS_NAME( alfaskop_s41_kb ); +} + +//------------------------------------------------- +// ADDRESS_MAP( alfaskop_s41_kb_mem ) +//------------------------------------------------- + +void alfaskop_s41_keyboard_device::alfaskop_s41_kb_mem(address_map &map) +{ + map(0x0000, 0x007f).ram(); // Internal RAM + /* A 32 byte decoder ROM connects A0-A4 to A11, A12, A13, A15 and to an external port pin, A14 is not decoded! + * c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 - if external port pin is low + * c3 c3 c3 c3 c5 c6 cb c3 d3 c3 c3 c3 c3 c3 43 f3 - if external port pin is high - normal operation + * + * Decoder rom byte bits as follows + * 0 - 0x01 Start scanning + * 1 - 0x02 read col + * 2 - 0x04 shift col clock + * 3 - 0x08 set lamp data + * 4 - 0x10 CS1 mc6846 I/O access - active low + * 5 - 0x20 CS0 mc6846 ROM access - active high + * 6 - 0x40 n/c? + * 7 - 0x80 to KBX + * + * F3 <- 0x0f <- 1-11 1 == b800-bfff, f800-ffff // 1111 0011 MC6846 Internal ROM access (CS0 - active high) + * 43 <- 0x0e <- 1-11 0 == b000-b7ff, f000-f7ff // 0100 0011 + * c3 <- 0x0d <- 1-10 1 == a800-afff, e800-efff // 1100 0011 + * c3 <- 0x0c <- 1-10 0 == a000-a7ff, e000-e7ff // 1100 0011 + * c3 <- 0x0b <- 1-01 1 == 9800-9fff, d800-dfff // 1100 0011 + * c3 <- 0x0a <- 1-01 0 == 9000-97ff, d000-d7ff // 1100 0011 + * c3 <- 0x09 <- 1-00 1 == 8800-8fff, c800-cfff // 1100 0011 + * d3 <- 0x08 <- 1-00 0 == 8000-87ff, c000-c7ff // 1101 0011 MC6846 Internal I/O access (CS1 - active high) + + * c3 <- 0x07 <- 0-11 1 == 3800-3fff, 7800-7fff // 1100 0011 + * cb <- 0x06 <- 0-11 0 == 3000-37ff, 7000-77ff // 1100 1011 Set lamp data + * c6 <- 0x05 <- 0-10 1 == 2800-2fff, 6800-6fff // 1100 0110 start scan + * c5 <- 0x04 <- 0-10 0 == 2000-27ff, 6000-67ff // 1100 0101 read col + * c3 <- 0x03 <- 0-01 1 == 1800-1fff, 5800-5fff // 1100 0011 + * c3 <- 0x02 <- 0-01 0 == 1000-17ff, 5000-57ff // 1100 0011 + * c3 <- 0x01 <- 0-00 1 == 0800-0fff, 4800-4fff // 1100 0011 + * c3 <- 0x00 <- 0-00 0 == 0000-07ff, 4000-47ff // 1100 0011 + */ + map(0x0080, 0xffff).lrw8(NAME([this](address_space &space, offs_t offset) -> uint8_t + { + uint16_t addr = offset + 0x80; + uint8_t index = 0x10 | ((((addr & 0x8000) | ((addr & 0x3800) << 1)) >> 12) & 0x000f); // 0x10 | (((A15 | A13 | A12 | A11) >> 12) + uint8_t ret = 0; + LOGADEC("address_r %04x -> index %02x: %02x\n", offset + 0x80, index, memregion("ad_rom")->base ()[index]); + switch (memregion("ad_rom")->base ()[index]) + { + case 0xf3: + ret = memregion(M6800_TAG)->base ()[addr & 0x07ff]; + LOGROM(" - ROM %04x: %02x\n", addr & 0x7ff, ret); + break; + case 0xd3: + LOGIO(" - I/O read mc6846 %04x", addr & 0x07); + ret = m_mc6846->read(space, (offs_t)(addr & 0x07)); + LOGIO(": %02x\n", ret); + break; + case 0xc3: + break; // Idle + default: + logerror(" - unmapped read access at %04x through %02x\n", addr, memregion("ad_rom")->base ()[index]); + } + return ret; + }), + NAME( [this](address_space &space, offs_t offset, uint8_t data) + { + uint16_t addr = offset + 0x80; + uint8_t index = 0x10 | ((((addr & 0x8000) | ((addr & 0x3800) << 1)) >> 12) & 0x000f); // 0x10 | (((A15 | A13 | A12 | A11) >> 12) + LOGADEC("address_w %04x -> index %02x: %02x\n", offset + 0x80, index, memregion("ad_rom")->base ()[index]); + switch (memregion("ad_rom")->base ()[index]) + { + case 0xd3: + LOGIO(" - I/O write mc6846 %04x, %02x\n", addr & 0x07, data); + m_mc6846->write(space, (offs_t)(addr & 0x07), data); + break; + case 0xcb: // Leds + if (m_leds != data) + { + m_leds_cb(data); m_leds = data; + LOGLEDS(" - I/O write LEDs %04x, %02x\n", addr, data); + } + break; + case 0xc3: + break; // Idle + default: + logerror(" - unmapped write access at %04x, %02x through %02x\n", addr, data, memregion("ad_rom")->base ()[index]); + } + })); + // map(0xf800, 0xffff).rom().region(M6800_TAG,0); +} + +//------------------------------------------------- +// rom_region - device-specific ROM region +//------------------------------------------------- + +const tiny_rom_entry *alfaskop_s41_keyboard_device::device_rom_region() const +{ + return ROM_NAME( alfaskop_s41_kb ); +} |