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Diffstat (limited to 'src/mame/machine/cmi_ankbd.cpp')
-rw-r--r--src/mame/machine/cmi_ankbd.cpp225
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);
+}