diff options
Diffstat (limited to 'src/mame/machine/cmi_ankbd.cpp')
-rw-r--r-- | src/mame/machine/cmi_ankbd.cpp | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/src/mame/machine/cmi_ankbd.cpp b/src/mame/machine/cmi_ankbd.cpp new file mode 100644 index 00000000000..33de2aa753a --- /dev/null +++ b/src/mame/machine/cmi_ankbd.cpp @@ -0,0 +1,225 @@ +// license:BSD-3-Clause +// copyright-holders:Phil Bennett +/*************************************************************************** + + Fairlight CMI Alphanumeric Keyboard + +***************************************************************************/ + +#include "emu.h" +#include "cmi_ankbd.h" + +#include "cpu/m6800/m6800.h" +#include "machine/clock.h" +#include "machine/input_merger.h" + +DEFINE_DEVICE_TYPE(CMI_ALPHANUMERIC_KEYBOARD, cmi_alphanumeric_keyboard_device, "cmi_ankbd", "Fairlight CMI Alphanumeric Keyboard") + +cmi_alphanumeric_keyboard_device::cmi_alphanumeric_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : device_t(mconfig, CMI_ALPHANUMERIC_KEYBOARD, tag, owner, clock) + , m_txd_handler(*this) + , m_rts_handler(*this) + , m_kbdcpu(*this, "kbdcpu") + , m_pia(*this, "pia") + , m_row_ports(*this, "ROW%u", 0) +{ +} + +void cmi_alphanumeric_keyboard_device::device_resolve_objects() +{ + m_txd_handler.resolve_safe(); + m_rts_handler.resolve_safe(); +} + +void cmi_alphanumeric_keyboard_device::device_start() +{ +} + +READ8_MEMBER( cmi_alphanumeric_keyboard_device::col_r ) +{ + int row = m_pia->b_output() ^ 0xff; + + switch (row) + { + case 0x01: return m_row_ports[0]->read(); + case 0x02: return m_row_ports[1]->read(); + case 0x04: return m_row_ports[2]->read(); + case 0x08: return m_row_ports[3]->read(); + case 0x10: return m_row_ports[4]->read(); + case 0x20: return m_row_ports[5]->read(); + case 0x40: return m_row_ports[6]->read(); + case 0x80: return m_row_ports[7]->read(); + default: return 0xff; + } +} + +READ_LINE_MEMBER( cmi_alphanumeric_keyboard_device::rts_r ) +{ +// printf("ANK RTS?\n"); + return 0; +} + +WRITE_LINE_MEMBER( cmi_alphanumeric_keyboard_device::rxd_w ) +{ + m_pia->cb2_w(state); +} + +WRITE_LINE_MEMBER( cmi_alphanumeric_keyboard_device::cts_w ) +{ + m_pia->ca2_w(state); +} + +WRITE_LINE_MEMBER( cmi_alphanumeric_keyboard_device::txd_w ) +{ + m_txd_handler(state); +} + +WRITE_LINE_MEMBER( cmi_alphanumeric_keyboard_device::rts_w ) +{ + m_rts_handler(state); +} + +void cmi_alphanumeric_keyboard_device::alphakeys_map(address_map &map) +{ + map.unmap_value_high(); + map(0x0000, 0x007f).ram(); + map(0x4000, 0x7fff).portr("OPTIONS"); + map(0x8000, 0xbfff).rw(m_pia, FUNC(pia6821_device::read), FUNC(pia6821_device::write)); + map(0xc000, 0xc3ff).rom().mirror(0x3c00); +} + +static INPUT_PORTS_START( cmi_alphanumeric_keyboard ) + /* Alphanumeric keyboard */ + PORT_START("OPTIONS") + PORT_DIPNAME( 0x07, 0x00, "Speed (baud)" ) + PORT_DIPSETTING( 0x00, "9600" ) + PORT_DIPSETTING( 0x01, "4800" ) + PORT_DIPSETTING( 0x02, "2400" ) + PORT_DIPSETTING( 0x03, "1200" ) + PORT_DIPSETTING( 0x04, "600" ) + PORT_DIPSETTING( 0x05, "300" ) + PORT_DIPSETTING( 0x06, "150" ) + PORT_DIPSETTING( 0x07, "110" ) + + PORT_DIPNAME( 0x30, 0x20, "Parity" ) + PORT_DIPSETTING( 0x00, "Even" ) + PORT_DIPSETTING( 0x10, "None, bit 7 is 0" ) + PORT_DIPSETTING( 0x20, "Odd" ) + PORT_DIPSETTING( 0x30, "None, bit 7 is 1" ) + + PORT_START("ROW0") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR('+') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(':') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') + + PORT_START("ROW1") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('T') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('U') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_NAME("Right") + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_NAME("Up") + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS_PAD) PORT_CHAR('-') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') + + PORT_START("ROW2") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('J') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Set") + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Add") + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') + + PORT_START("ROW3") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_NAME("LShift") + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('X') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('V') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('N') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_NAME("Down") + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Clear") + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("WTF") + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('L') + + PORT_START("ROW4") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('W') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('G') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('M') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Home") + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('K') + + PORT_START("ROW5") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_NAME("Return (a)") + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_NAME("Return (b)") + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('P') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('I') + + PORT_START("ROW6") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('S') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('H') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Sub") + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RSHIFT) PORT_NAME("RShift") + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') + + PORT_START("ROW7") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('S') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('R') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_NAME("Left") + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('O') +INPUT_PORTS_END + +ioport_constructor cmi_alphanumeric_keyboard_device::device_input_ports() const +{ + return INPUT_PORTS_NAME(cmi_alphanumeric_keyboard); +} + +void cmi_alphanumeric_keyboard_device::device_add_mconfig(machine_config &config) +{ + M6802(config, m_kbdcpu, 3.84_MHz_XTAL); + m_kbdcpu->set_addrmap(AS_PROGRAM, &cmi_alphanumeric_keyboard_device::alphakeys_map); + + INPUT_MERGER_ANY_HIGH(config, "irqs").output_handler().set_inputline(m_kbdcpu, M6802_IRQ_LINE); + + PIA6821(config, m_pia); // pia_config + m_pia->readpa_handler().set(FUNC(cmi_alphanumeric_keyboard_device::col_r)); + m_pia->readcb1_handler().set(FUNC(cmi_alphanumeric_keyboard_device::rts_r)); + m_pia->ca2_handler().set(FUNC(cmi_alphanumeric_keyboard_device::rts_w)); + m_pia->cb2_handler().set(FUNC(cmi_alphanumeric_keyboard_device::txd_w)); + m_pia->irqa_handler().set("irqs", FUNC(input_merger_device::in_w<0>)); + m_pia->irqb_handler().set("irqs", FUNC(input_merger_device::in_w<1>)); + + clock_device &pia_clock(CLOCK(config, "pia_clock", 3.84_MHz_XTAL / 400)); + pia_clock.signal_handler().set(m_pia, FUNC(pia6821_device::ca1_w)); +} + +ROM_START( cmi_ankbd ) + // This dump has been trimmed to size from within a roughly 2x-bigger file. The actual size is known based + // on the format apparently used by the dumping device. + ROM_REGION( 0x10000, "kbdcpu", 0 ) + ROM_LOAD( "cmikeys4.bin", 0xc000, 0x400, CRC(b214fbe9) SHA1(8c404f58ba3e5a50aa42f761e966c74374e96cc9) ) +ROM_END + +const tiny_rom_entry *cmi_alphanumeric_keyboard_device::device_rom_region() const +{ + return ROM_NAME(cmi_ankbd); +} |