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Diffstat (limited to 'src/devices/bus/pc_kbd/iskr1030.c')
-rw-r--r--src/devices/bus/pc_kbd/iskr1030.c500
1 files changed, 500 insertions, 0 deletions
diff --git a/src/devices/bus/pc_kbd/iskr1030.c b/src/devices/bus/pc_kbd/iskr1030.c
new file mode 100644
index 00000000000..ecee5639129
--- /dev/null
+++ b/src/devices/bus/pc_kbd/iskr1030.c
@@ -0,0 +1,500 @@
+// license:BSD-3-Clause
+// copyright-holders:Sergey Svishchev
+/**********************************************************************
+
+ Iskra-1030 and -1031 XX-key keyboard emulation
+
+*********************************************************************/
+
+#include "iskr1030.h"
+
+#define VERBOSE_DBG 1 /* general debug messages */
+
+#define DBG_LOG(N,M,A) \
+ do { \
+ if(VERBOSE_DBG>=N) \
+ { \
+ logerror("%11.6f at %s: ",machine().time().as_double(),machine().describe_context()); \
+ logerror A; \
+ } \
+ } while (0)
+
+
+
+//**************************************************************************
+// MACROS / CONSTANTS
+//**************************************************************************
+
+#define I8048_TAG "i8048"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type PC_KBD_ISKR_1030 = &device_creator<iskr_1030_keyboard_device>;
+
+
+//-------------------------------------------------
+// ROM( iskr_1030_keyboard )
+//-------------------------------------------------
+
+ROM_START( iskr_1030_keyboard )
+ ROM_REGION( 0x800, I8048_TAG, 0 )
+ ROM_LOAD( "i1030.bin", 0x000, 0x800, CRC(7cac9c4b) SHA1(03959d3350e012ebfe61cee9c062b6c1fdd8766e) )
+ROM_END
+
+
+//-------------------------------------------------
+// rom_region - device-specific ROM region
+//-------------------------------------------------
+
+const rom_entry *iskr_1030_keyboard_device::device_rom_region() const
+{
+ return ROM_NAME( iskr_1030_keyboard );
+}
+
+
+//-------------------------------------------------
+// ADDRESS_MAP( kb_io )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START( iskr_1030_keyboard_io, AS_IO, 8, iskr_1030_keyboard_device )
+ AM_RANGE(0x00, 0xFF) AM_READWRITE(ram_r, ram_w)
+ AM_RANGE(MCS48_PORT_P1, MCS48_PORT_P1) AM_READWRITE(p1_r, p1_w)
+ AM_RANGE(MCS48_PORT_P2, MCS48_PORT_P2) AM_WRITE(p2_w)
+ AM_RANGE(MCS48_PORT_T1, MCS48_PORT_T1) AM_READ(t1_r)
+ADDRESS_MAP_END
+
+
+//-------------------------------------------------
+// MACHINE_DRIVER( iskr_1030_keyboard )
+//-------------------------------------------------
+
+static MACHINE_CONFIG_FRAGMENT( iskr_1030_keyboard )
+ MCFG_CPU_ADD(I8048_TAG, I8048, XTAL_5MHz)
+ MCFG_CPU_IO_MAP(iskr_1030_keyboard_io)
+MACHINE_CONFIG_END
+
+
+//-------------------------------------------------
+// machine_config_additions - device-specific
+// machine configurations
+//-------------------------------------------------
+
+machine_config_constructor iskr_1030_keyboard_device::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( iskr_1030_keyboard );
+}
+
+
+//-------------------------------------------------
+// INPUT_PORTS( iskr_1030_keyboard )
+//-------------------------------------------------
+
+INPUT_PORTS_START( iskr_1030_keyboard )
+ PORT_START("MD00")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD01")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD02")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD03")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD04")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD05")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD06")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD07")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD08")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD09")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD10")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD11")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD12")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD13")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD14")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD15")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD16")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD17")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD18")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD19")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD20")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD21")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD22")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+
+ PORT_START("MD23")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD )
+INPUT_PORTS_END
+
+
+//-------------------------------------------------
+// input_ports - device-specific input ports
+//-------------------------------------------------
+
+ioport_constructor iskr_1030_keyboard_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME( iskr_1030_keyboard );
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// iskr_1030_keyboard_device - constructor
+//-------------------------------------------------
+
+iskr_1030_keyboard_device::iskr_1030_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+ : device_t(mconfig, PC_KBD_ISKR_1030, "Iskra-1030 Keyboard", tag, owner, clock, "kb_iskr1030", __FILE__),
+ device_pc_kbd_interface(mconfig, *this),
+ m_maincpu(*this, I8048_TAG),
+ m_md00(*this, "MD00"),
+ m_md01(*this, "MD01"),
+ m_md02(*this, "MD02"),
+ m_md03(*this, "MD03"),
+ m_md04(*this, "MD04"),
+ m_md05(*this, "MD05"),
+ m_md06(*this, "MD06"),
+ m_md07(*this, "MD07"),
+ m_md08(*this, "MD08"),
+ m_md09(*this, "MD09"),
+ m_md10(*this, "MD10"),
+ m_md11(*this, "MD11"),
+ m_md12(*this, "MD12"),
+ m_md13(*this, "MD13"),
+ m_md14(*this, "MD14"),
+ m_md15(*this, "MD15"),
+ m_md16(*this, "MD16"),
+ m_md17(*this, "MD17"),
+ m_md18(*this, "MD18"),
+ m_md19(*this, "MD19"),
+ m_md20(*this, "MD20"),
+ m_md21(*this, "MD21"),
+ m_md22(*this, "MD22"),
+ m_md23(*this, "MD23"),
+ m_p1(0),
+ m_p2(0),
+ m_q(0)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void iskr_1030_keyboard_device::device_start()
+{
+ set_pc_kbdc_device();
+
+ m_ram.resize(0x100);
+ save_item(NAME(m_ram));
+
+ save_item(NAME(m_bus));
+ save_item(NAME(m_p1));
+ save_item(NAME(m_p2));
+ save_item(NAME(m_q));
+}
+
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void iskr_1030_keyboard_device::device_reset()
+{
+}
+
+
+//-------------------------------------------------
+// clock_write -
+//-------------------------------------------------
+
+WRITE_LINE_MEMBER( iskr_1030_keyboard_device::clock_write )
+{
+ DBG_LOG(1,0,( "%s: clock write %d\n", tag(), state));
+ m_maincpu->set_input_line(MCS48_INPUT_IRQ, state ? CLEAR_LINE : ASSERT_LINE);
+}
+
+
+//-------------------------------------------------
+// data_write -
+//-------------------------------------------------
+
+WRITE_LINE_MEMBER( iskr_1030_keyboard_device::data_write )
+{
+ DBG_LOG(1,0,( "%s: data write %d\n", tag(), state));
+}
+
+
+//-------------------------------------------------
+// t1_r -
+//-------------------------------------------------
+
+READ8_MEMBER( iskr_1030_keyboard_device::t1_r )
+{
+ UINT8 data = data_signal();
+ UINT8 bias = m_p1 & 15;
+
+ if (!BIT(m_p1, 7)) {
+ DBG_LOG(2,0,( "%s: t1_r (l) %d\n", tag(), data));
+ return data;
+ }
+
+ if (bias) {
+ DBG_LOG(2,0,( "%s: t1_r (b) %d\n", tag(), bias));
+ return 1;
+ }
+
+ data = 0;
+ switch (m_bus >> 2)
+ {
+ case 0<<1: data = m_md00->read(); break;
+ case 1<<1: data = m_md01->read(); break;
+ case 2<<1: data = m_md02->read(); break;
+ case 3<<1: data = m_md03->read(); break;
+ case 4<<1: data = m_md04->read(); break;
+ case 5<<1: data = m_md05->read(); break;
+ case 6<<1: data = m_md06->read(); break;
+ case 7<<1: data = m_md07->read(); break;
+ case 8<<1: data = m_md08->read(); break;
+ case 9<<1: data = m_md09->read(); break;
+ case 10<<1: data = m_md10->read(); break;
+ case 11<<1: data = m_md11->read(); break;
+ case (0<<1)+1: data = m_md12->read(); break;
+ case (1<<1)+1: data = m_md13->read(); break;
+ case (2<<1)+1: data = m_md14->read(); break;
+ case (3<<1)+1: data = m_md15->read(); break;
+ case (4<<1)+1: data = m_md16->read(); break;
+ case (5<<1)+1: data = m_md17->read(); break;
+ case (6<<1)+1: data = m_md18->read(); break;
+ case (7<<1)+1: data = m_md19->read(); break;
+ case (8<<1)+1: data = m_md20->read(); break;
+ case (9<<1)+1: data = m_md21->read(); break;
+ case (10<<1)+1: data = m_md22->read(); break;
+ case (11<<1)+1: data = m_md23->read(); break;
+ }
+ data = BIT(data, m_bus&3);
+
+ DBG_LOG(2,0,( "%s: t1_r (k r%d c%d) %d\n", tag(), m_bus&3, m_bus>>2, data));
+ return data;
+}
+
+
+//-------------------------------------------------
+// ram_w -
+//-------------------------------------------------
+
+WRITE8_MEMBER( iskr_1030_keyboard_device::ram_w )
+{
+ DBG_LOG(2,0,( "%s: ram_w[%02x] <- %02x\n", tag(), offset, data));
+
+ m_bus = offset;
+ m_ram[offset] = data;
+}
+
+
+//-------------------------------------------------
+// ram_r -
+//-------------------------------------------------
+
+READ8_MEMBER( iskr_1030_keyboard_device::ram_r )
+{
+ DBG_LOG(2,0,( "%s: ram_r[%02x] = %02x\n", tag(), offset, m_ram[offset]));
+
+ return m_ram[offset];
+}
+
+
+//-------------------------------------------------
+// p1_r -
+//-------------------------------------------------
+
+READ8_MEMBER( iskr_1030_keyboard_device::p1_r )
+{
+ /*
+ bit description
+
+ 0 -REQ IN
+ 1 DATA IN
+ 2
+ 3
+ 4
+ 5
+ 6
+ 7
+ */
+
+ UINT8 data = 0;
+
+ DBG_LOG(1,0,( "%s: p1_r %02x\n", tag(), data));
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// p2_w -
+//-------------------------------------------------
+
+WRITE8_MEMBER( iskr_1030_keyboard_device::p2_w )
+{
+ /*
+ bit description
+
+ 0 ...
+ 1 ...
+ 2 ...
+ 3 (not connected)
+ 4 SPEAKER
+ 5 LED RUS/LAT
+ 6 LED NLK
+ 7 LED CLK
+ */
+ DBG_LOG(1,0,( "%s: p2_w %02x\n", tag(), data));
+
+ m_p2 = data;
+}
+
+
+//-------------------------------------------------
+// p1_w - OK
+//-------------------------------------------------
+
+WRITE8_MEMBER( iskr_1030_keyboard_device::p1_w )
+{
+ /*
+ bit description
+
+ 0 XXX
+ 1 XXX
+ 2 XXX
+ 3 XXX
+ 4 CLOCK out
+ 5 DATA out
+ 6 XXX
+ 7 POLL GATE
+ */
+
+ m_p1 = data;
+
+ DBG_LOG(1,0,( "%s: p1_w %02x (c %d d %d bias %d)\n", tag(), data, BIT(data, 4), BIT(data, 5), data&15));
+
+ m_pc_kbdc->data_write_from_kb(BIT(data, 5));
+ m_pc_kbdc->clock_write_from_kb(BIT(data, 4));
+}