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-rw-r--r--src/mess/drivers/cosmicos.c633
1 files changed, 633 insertions, 0 deletions
diff --git a/src/mess/drivers/cosmicos.c b/src/mess/drivers/cosmicos.c
new file mode 100644
index 00000000000..fc303180b6b
--- /dev/null
+++ b/src/mess/drivers/cosmicos.c
@@ -0,0 +1,633 @@
+/*
+
+ COSMICOS
+
+ http://retro.hansotten.nl/index.php?page=1802-cosmicos
+
+
+ HEX-monitor
+
+ 0 - start user program
+ 1 - inspect and/or change memory
+ 2 - write memory block to cassette
+ 3 - read memory block from cassette
+ 4 - move memory block
+ 5 - write memory block to EPROM
+ C - start user program from address 0000
+
+*/
+
+/*
+
+ TODO:
+
+ - fix direct update handler to make system work again
+ - display interface INH
+ - 2 segment display
+ - single step
+ - ascii monitor
+ - PPI 8255
+ - Floppy WD1793
+ - COM8017 UART to printer
+
+*/
+
+#include "includes/cosmicos.h"
+#include "cosmicos.lh"
+
+enum
+{
+ MODE_RUN,
+ MODE_LOAD,
+ MODE_PAUSE,
+ MODE_RESET
+};
+
+/* Read/Write Handlers */
+
+READ8_MEMBER( cosmicos_state::video_off_r )
+{
+ UINT8 data = 0;
+
+ if (!m_q)
+ {
+ data = m_cti->dispoff_r(space, 0);
+ }
+
+ return data;
+}
+
+READ8_MEMBER( cosmicos_state::video_on_r )
+{
+ UINT8 data = 0;
+
+ if (!m_q)
+ {
+ data = m_cti->dispon_r(space, 0);
+ }
+
+ return data;
+}
+
+WRITE8_MEMBER( cosmicos_state::audio_latch_w )
+{
+ if (m_q)
+ {
+ m_cti->tone_latch_w(space, 0, data);
+ }
+}
+
+READ8_MEMBER( cosmicos_state::hex_keyboard_r )
+{
+ static const char *const keynames[] = { "ROW1", "ROW2", "ROW3", "ROW4" };
+ UINT8 data = 0;
+ int i;
+
+ for (i = 0; i < 4; i++)
+ {
+ if (BIT(m_keylatch, i))
+ {
+ UINT8 keydata = ioport(keynames[i])->read();
+
+ if (BIT(keydata, 0)) data |= 0x01;
+ if (BIT(keydata, 1)) data |= 0x02;
+ if (BIT(keydata, 2)) data |= 0x04;
+ if (BIT(keydata, 3)) data |= 0x06;
+ }
+ }
+
+ return data;
+}
+
+WRITE8_MEMBER( cosmicos_state::hex_keylatch_w )
+{
+ m_keylatch = data & 0x0f;
+}
+
+READ8_MEMBER( cosmicos_state::reset_counter_r )
+{
+ m_counter = 0;
+
+ return 0;
+}
+
+WRITE8_MEMBER( cosmicos_state::segment_w )
+{
+ m_counter++;
+
+ if (m_counter == 10)
+ {
+ m_counter = 0;
+ }
+
+ if ((m_counter > 0) && (m_counter < 9))
+ {
+ output_set_digit_value(10 - m_counter, data);
+ }
+}
+
+READ8_MEMBER( cosmicos_state::data_r )
+{
+ return m_data;
+}
+
+WRITE8_MEMBER( cosmicos_state::display_w )
+{
+ m_segment = data;
+}
+
+/* Memory Maps */
+
+static ADDRESS_MAP_START( cosmicos_mem, AS_PROGRAM, 8, cosmicos_state )
+ AM_RANGE(0x0000, 0xbfff) AM_RAM
+ AM_RANGE(0xc000, 0xcfff) AM_ROM AM_REGION(CDP1802_TAG, 0)
+ AM_RANGE(0xff00, 0xffff) AM_RAM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( cosmicos_io, AS_IO, 8, cosmicos_state )
+// AM_RANGE(0x00, 0x00)
+ AM_RANGE(0x01, 0x01) AM_READ(video_on_r)
+ AM_RANGE(0x02, 0x02) AM_READWRITE(video_off_r, audio_latch_w)
+// AM_RANGE(0x03, 0x03)
+// AM_RANGE(0x04, 0x04)
+ AM_RANGE(0x05, 0x05) AM_READWRITE(hex_keyboard_r, hex_keylatch_w)
+ AM_RANGE(0x06, 0x06) AM_READWRITE(reset_counter_r, segment_w)
+ AM_RANGE(0x07, 0x07) AM_READWRITE(data_r, display_w)
+ADDRESS_MAP_END
+
+/* Input Ports */
+
+INPUT_CHANGED_MEMBER( cosmicos_state::data )
+{
+ UINT8 data = ioport("DATA")->read();
+ int i;
+
+ for (i = 0; i < 8; i++)
+ {
+ if (!BIT(data, i))
+ {
+ m_data |= (1 << i);
+ output_set_led_value(LED_D0 - i, 1);
+ }
+ }
+}
+
+INPUT_CHANGED_MEMBER( cosmicos_state::enter )
+{
+ if (!newval && !m_wait && !m_clear)
+ {
+ m_maincpu->set_input_line(COSMAC_INPUT_LINE_DMAIN, ASSERT_LINE);
+ }
+}
+
+INPUT_CHANGED_MEMBER( cosmicos_state::single_step )
+{
+ // if in PAUSE mode, set RUN mode until TPB=active
+}
+
+void cosmicos_state::set_cdp1802_mode(int mode)
+{
+ output_set_led_value(LED_RUN, 0);
+ output_set_led_value(LED_LOAD, 0);
+ output_set_led_value(LED_PAUSE, 0);
+ output_set_led_value(LED_RESET, 0);
+
+ switch (mode)
+ {
+ case MODE_RUN:
+ output_set_led_value(LED_RUN, 1);
+
+ m_wait = 1;
+ m_clear = 1;
+ break;
+
+ case MODE_LOAD:
+ output_set_led_value(LED_LOAD, 1);
+
+ m_wait = 0;
+ m_clear = 0;
+ break;
+
+ case MODE_PAUSE:
+ output_set_led_value(LED_PAUSE, 1);
+
+ m_wait = 1;
+ m_clear = 0;
+ break;
+
+ case MODE_RESET:
+ m_maincpu->set_input_line(COSMAC_INPUT_LINE_INT, CLEAR_LINE);
+ m_maincpu->set_input_line(COSMAC_INPUT_LINE_DMAIN, CLEAR_LINE);
+
+ m_wait = 1;
+ m_clear = 0;
+ m_boot = 1;
+
+ output_set_led_value(LED_RESET, 1);
+ break;
+ }
+}
+
+INPUT_CHANGED_MEMBER( cosmicos_state::run ) { if (!newval) set_cdp1802_mode(MODE_RUN); }
+INPUT_CHANGED_MEMBER( cosmicos_state::load ) { if (!newval) set_cdp1802_mode(MODE_LOAD); }
+INPUT_CHANGED_MEMBER( cosmicos_state::cosmicos_pause ) { if (!newval) set_cdp1802_mode(MODE_PAUSE); }
+INPUT_CHANGED_MEMBER( cosmicos_state::reset ) { if (!newval) set_cdp1802_mode(MODE_RESET); }
+
+void cosmicos_state::clear_input_data()
+{
+ int i;
+
+ m_data = 0;
+
+ for (i = 0; i < 8; i++)
+ {
+ output_set_led_value(LED_D0 - i, 0);
+ }
+}
+
+INPUT_CHANGED_MEMBER( cosmicos_state::clear_data )
+{
+ clear_input_data();
+}
+
+void cosmicos_state::set_ram_mode()
+{
+ address_space *program = m_maincpu->memory().space(AS_PROGRAM);
+ UINT8 *ram = m_ram->pointer();
+
+ if (m_ram_disable)
+ {
+ program->unmap_readwrite(0xff00, 0xffff);
+ }
+ else
+ {
+ if (m_ram_protect)
+ {
+ program->install_rom(0xff00, 0xffff, ram);
+ }
+ else
+ {
+ program->install_ram(0xff00, 0xffff, ram);
+ }
+ }
+}
+
+INPUT_CHANGED_MEMBER( cosmicos_state::memory_protect )
+{
+ m_ram_protect = newval;
+
+ set_ram_mode();
+}
+
+INPUT_CHANGED_MEMBER( cosmicos_state::memory_disable )
+{
+ m_ram_disable = newval;
+
+ set_ram_mode();
+}
+
+static INPUT_PORTS_START( cosmicos )
+ PORT_START("DATA")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("D0") PORT_CODE(KEYCODE_0_PAD) PORT_CHAR('0') PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, data, 0)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("D1") PORT_CODE(KEYCODE_1_PAD) PORT_CHAR('1') PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, data, 0)
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("D2") PORT_CODE(KEYCODE_2_PAD) PORT_CHAR('2') PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, data, 0)
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("D3") PORT_CODE(KEYCODE_3_PAD) PORT_CHAR('3') PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, data, 0)
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("D4") PORT_CODE(KEYCODE_4_PAD) PORT_CHAR('4') PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, data, 0)
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("D5") PORT_CODE(KEYCODE_5_PAD) PORT_CHAR('5') PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, data, 0)
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("D6") PORT_CODE(KEYCODE_6_PAD) PORT_CHAR('6') PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, data, 0)
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("D7") PORT_CODE(KEYCODE_7_PAD) PORT_CHAR('7') PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, data, 0)
+
+ PORT_START("BUTTONS")
+ PORT_BIT( 0x001, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ENTER_PAD) PORT_NAME("Enter") PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, enter, 0)
+ PORT_BIT( 0x002, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_NAME("Single Step") PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, single_step, 0)
+ PORT_BIT( 0x004, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_NAME("Run") PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, run, 0)
+ PORT_BIT( 0x008, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_NAME("Load") PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, load, 0)
+ PORT_BIT( 0x010, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_NAME(DEF_STR( Pause )) PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, cosmicos_pause, 0)
+ PORT_BIT( 0x020, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_NAME("Reset") PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, reset, 0)
+ PORT_BIT( 0x040, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DEL_PAD) PORT_NAME("Clear Data") PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, clear_data, 0)
+ PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_NAME("Memory Protect") PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, memory_protect, 0) PORT_TOGGLE
+ PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_NAME("Memory Disable") PORT_CHANGED_MEMBER(DEVICE_SELF, cosmicos_state, memory_disable, 0) PORT_TOGGLE
+
+ PORT_START("ROW1")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0')
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1')
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2')
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3')
+
+ PORT_START("ROW2")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4')
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5')
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6')
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7')
+
+ PORT_START("ROW3")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8')
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9')
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('A')
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('B')
+
+ PORT_START("ROW4")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('C')
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('D')
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('E')
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('F')
+
+ PORT_START("SPECIAL")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("RET") PORT_CODE(KEYCODE_F1)
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("DEC") PORT_CODE(KEYCODE_F2)
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("REQ") PORT_CODE(KEYCODE_F3)
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("SEQ") PORT_CODE(KEYCODE_F4)
+INPUT_PORTS_END
+
+/* Video */
+
+static TIMER_DEVICE_CALLBACK( digit_tick )
+{
+ cosmicos_state *state = timer.machine().driver_data<cosmicos_state>();
+
+ state->m_digit = !state->m_digit;
+
+ output_set_digit_value(state->m_digit, state->m_segment);
+}
+
+static TIMER_DEVICE_CALLBACK( int_tick )
+{
+ cosmicos_state *state = timer.machine().driver_data<cosmicos_state>();
+
+ state->m_maincpu->set_input_line(COSMAC_INPUT_LINE_INT, ASSERT_LINE);
+}
+
+WRITE_LINE_MEMBER( cosmicos_state::dmaout_w )
+{
+ m_dmaout = state;
+}
+
+WRITE_LINE_MEMBER( cosmicos_state::efx_w )
+{
+ m_efx = state;
+}
+
+static CDP1864_INTERFACE( cosmicos_cdp1864_intf )
+{
+ CDP1802_TAG,
+ SCREEN_TAG,
+ CDP1864_INTERLACED,
+ DEVCB_LINE_VCC,
+ DEVCB_LINE_VCC,
+ DEVCB_LINE_VCC,
+ DEVCB_CPU_INPUT_LINE(CDP1802_TAG, COSMAC_INPUT_LINE_INT),
+ DEVCB_DRIVER_LINE_MEMBER(cosmicos_state, dmaout_w),
+ DEVCB_DRIVER_LINE_MEMBER(cosmicos_state, efx_w),
+ DEVCB_NULL,
+ RES_K(2), // R2
+ 0, // not connected
+ 0, // not connected
+ 0 // not connected
+};
+
+/* CDP1802 Configuration */
+
+READ_LINE_MEMBER( cosmicos_state::wait_r )
+{
+ return m_wait;
+}
+
+READ_LINE_MEMBER( cosmicos_state::clear_r )
+{
+ return m_clear;
+}
+
+READ_LINE_MEMBER( cosmicos_state::ef1_r )
+{
+ UINT8 special = ioport("SPECIAL")->read();
+
+ return BIT(special, 0);
+}
+
+READ_LINE_MEMBER( cosmicos_state::ef2_r )
+{
+ UINT8 special = ioport("SPECIAL")->read();
+ int casin = (m_cassette)->input() < 0.0;
+
+ output_set_led_value(LED_CASSETTE, casin);
+
+ return BIT(special, 1) | BIT(special, 3) | casin;
+}
+
+READ_LINE_MEMBER( cosmicos_state::ef3_r )
+{
+ UINT8 special = ioport("SPECIAL")->read();
+
+ return BIT(special, 2) | BIT(special, 3);
+}
+
+READ_LINE_MEMBER( cosmicos_state::ef4_r )
+{
+ return BIT(ioport("BUTTONS")->read(), 0);
+}
+
+static COSMAC_SC_WRITE( cosmicos_sc_w )
+{
+ cosmicos_state *driver_state = device->machine().driver_data<cosmicos_state>();
+
+ int sc1 = BIT(sc, 1);
+
+ if (driver_state->m_sc1 && !sc1)
+ {
+ driver_state->clear_input_data();
+ }
+
+ if (sc1)
+ {
+ driver_state->m_maincpu->set_input_line(COSMAC_INPUT_LINE_INT, CLEAR_LINE);
+ driver_state->m_maincpu->set_input_line(COSMAC_INPUT_LINE_DMAIN, CLEAR_LINE);
+ }
+
+ driver_state->m_sc1 = sc1;
+}
+
+WRITE_LINE_MEMBER( cosmicos_state::q_w )
+{
+ /* cassette */
+ m_cassette->output(state ? +1.0 : -1.0);
+
+ /* boot */
+ if (state) m_boot = 0;
+
+ /* CDP1864 audio enable */
+ m_cti->aoe_w(state);
+
+ m_q = state;
+}
+
+READ8_MEMBER( cosmicos_state::dma_r )
+{
+ return m_data;
+}
+
+static COSMAC_INTERFACE( cosmicos_config )
+{
+ DEVCB_DRIVER_LINE_MEMBER(cosmicos_state, wait_r),
+ DEVCB_DRIVER_LINE_MEMBER(cosmicos_state, clear_r),
+ DEVCB_DRIVER_LINE_MEMBER(cosmicos_state, ef1_r),
+ DEVCB_DRIVER_LINE_MEMBER(cosmicos_state, ef2_r),
+ DEVCB_DRIVER_LINE_MEMBER(cosmicos_state, ef3_r),
+ DEVCB_DRIVER_LINE_MEMBER(cosmicos_state, ef4_r),
+ DEVCB_DRIVER_LINE_MEMBER(cosmicos_state, q_w),
+ DEVCB_DRIVER_MEMBER(cosmicos_state, dma_r),
+ DEVCB_NULL,
+ cosmicos_sc_w,
+ DEVCB_NULL,
+ DEVCB_NULL
+};
+
+
+/* Machine Initialization */
+
+void cosmicos_state::machine_start()
+{
+ address_space *program = m_maincpu->memory().space(AS_PROGRAM);
+
+ /* initialize LED display */
+ m_led->rbi_w(1);
+
+ /* setup memory banking */
+ switch (m_ram->size())
+ {
+ case 256:
+ program->unmap_readwrite(0x0000, 0xbfff);
+ break;
+
+ case 4*1024:
+ program->unmap_readwrite(0x1000, 0xbfff);
+ break;
+ }
+
+ set_ram_mode();
+
+ /* register for state saving */
+ save_item(NAME(m_wait));
+ save_item(NAME(m_clear));
+ save_item(NAME(m_sc1));
+ save_item(NAME(m_data));
+ save_item(NAME(m_boot));
+ save_item(NAME(m_ram_protect));
+ save_item(NAME(m_ram_disable));
+ save_item(NAME(m_keylatch));
+ save_item(NAME(m_segment));
+ save_item(NAME(m_digit));
+ save_item(NAME(m_counter));
+ save_item(NAME(m_q));
+ save_item(NAME(m_dmaout));
+ save_item(NAME(m_efx));
+ save_item(NAME(m_video_on));
+}
+
+void cosmicos_state::machine_reset()
+{
+ set_cdp1802_mode(MODE_RESET);
+}
+
+/* Quickload */
+
+static QUICKLOAD_LOAD( cosmicos )
+{
+ UINT8 *ptr = image.device().machine().root_device().memregion(CDP1802_TAG)->base();
+ int size = image.length();
+
+ /* load image to RAM */
+ image.fread(ptr, size);
+
+ return IMAGE_INIT_PASS;
+}
+
+/* Machine Driver */
+
+static const cassette_interface cosmicos_cassette_interface =
+{
+ cassette_default_formats,
+ NULL,
+ (cassette_state)(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_MUTED),
+ NULL,
+ NULL
+};
+
+static DM9368_INTERFACE( led_intf )
+{
+ 0,
+ DEVCB_NULL,
+ DEVCB_NULL
+};
+
+static MACHINE_CONFIG_START( cosmicos, cosmicos_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD(CDP1802_TAG, COSMAC, XTAL_1_75MHz)
+ MCFG_CPU_PROGRAM_MAP(cosmicos_mem)
+ MCFG_CPU_IO_MAP(cosmicos_io)
+ MCFG_CPU_CONFIG(cosmicos_config)
+
+ /* video hardware */
+ MCFG_DEFAULT_LAYOUT( layout_cosmicos )
+ MCFG_DM9368_ADD(DM9368_TAG, led_intf)
+ MCFG_TIMER_ADD_PERIODIC("digit", digit_tick, attotime::from_hz(100))
+ MCFG_TIMER_ADD_PERIODIC("interrupt", int_tick, attotime::from_hz(1000))
+
+ MCFG_CDP1864_SCREEN_ADD(SCREEN_TAG, XTAL_1_75MHz)
+ MCFG_SCREEN_UPDATE_DEVICE(CDP1864_TAG, cdp1864_device, screen_update)
+
+ MCFG_PALETTE_LENGTH(8+8)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+
+ MCFG_SOUND_ADD(SPEAKER_TAG, SPEAKER_SOUND, 0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+
+ MCFG_CDP1864_ADD(CDP1864_TAG, XTAL_1_75MHz, cosmicos_cdp1864_intf)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+
+ /* devices */
+ MCFG_QUICKLOAD_ADD("quickload", cosmicos, "bin", 0)
+ MCFG_CASSETTE_ADD(CASSETTE_TAG, cosmicos_cassette_interface)
+
+ /* internal ram */
+ MCFG_RAM_ADD(RAM_TAG)
+ MCFG_RAM_DEFAULT_SIZE("256")
+ MCFG_RAM_EXTRA_OPTIONS("4K,48K")
+MACHINE_CONFIG_END
+
+/* ROMs */
+
+ROM_START( cosmicos )
+ ROM_REGION( 0x1000, CDP1802_TAG, 0 )
+ ROM_SYSTEM_BIOS( 0, "hex", "Hex Monitor" )
+ ROMX_LOAD( "hex.ic6", 0x000, 0x400, BAD_DUMP CRC(d25124bf) SHA1(121215ba3a979e1962327ebe73cbadf784c568d9), ROM_BIOS(1) ) /* typed in from manual */
+ ROMX_LOAD( "hex.ic7", 0x400, 0x400, BAD_DUMP CRC(364ac81b) SHA1(83936ee6a7ed44632eb290889b98fb9a500f15d4), ROM_BIOS(1) ) /* typed in from manual */
+ ROM_SYSTEM_BIOS( 1, "ascii", "ASCII Monitor" )
+ ROMX_LOAD( "ascii.ic6", 0x000, 0x400, NO_DUMP, ROM_BIOS(2) )
+ ROMX_LOAD( "ascii.ic7", 0x400, 0x400, NO_DUMP, ROM_BIOS(2) )
+ROM_END
+
+/* System Drivers */
+
+DIRECT_UPDATE_MEMBER(cosmicos_state::cosmicos_direct_update_handler)
+{
+ if (m_boot)
+ {
+ /* force A6 and A7 high */
+ direct.explicit_configure(0x0000, 0xffff, 0x3f3f, memregion(CDP1802_TAG)->base() + 0xc0);
+ return ~0;
+ }
+
+ return address;
+}
+
+DRIVER_INIT_MEMBER(cosmicos_state,cosmicos)
+{
+ address_space *program = machine().device(CDP1802_TAG)->memory().space(AS_PROGRAM);
+
+ program->set_direct_update_handler(direct_update_delegate(FUNC(cosmicos_state::cosmicos_direct_update_handler), this));
+}
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 1979, cosmicos, 0, 0, cosmicos, cosmicos, cosmicos_state, cosmicos, "Radio Bulletin", "Cosmicos", GAME_NOT_WORKING | GAME_SUPPORTS_SAVE | GAME_IMPERFECT_GRAPHICS )