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-rw-r--r--src/mame/drivers/nascom1.cpp951
1 files changed, 0 insertions, 951 deletions
diff --git a/src/mame/drivers/nascom1.cpp b/src/mame/drivers/nascom1.cpp
deleted file mode 100644
index d3eb65fd42b..00000000000
--- a/src/mame/drivers/nascom1.cpp
+++ /dev/null
@@ -1,951 +0,0 @@
-// license:GPL-2.0+
-// copyright-holders:Dirk Best,Paul Danials
-/******************************************************************************************************
-
-Nascom 1/2/3
-
-Single board computer
-
-
-To Do:
-- TTY
-- Nascom2 has two dipswitch banks, and a memory control header
-- Nascom3 (Gemini), nothing usable found
-
-Cassette (nascom1):
- It outputs a string of pulses at 1953.125Hz to indicate a 1, and blank tape for 0. This means that
- no tape will present a 0 to the UART instead of the expected 1 (idle). Part of the cassette
- schematic is missing, so a few liberties have been taken. The result is you can save a file and
- load it back. Haven't found wav files on the net to test with.
-
-Cassette (nascom2):
- Standard Kansas City format, switchable (with a real switch) between 300 and 1200 baud.
-
-*****************************************************************************************************/
-
-#include "emu.h"
-
-#include "cpu/z80/z80.h"
-#include "imagedev/cassette.h"
-#include "imagedev/snapquik.h"
-#include "machine/ay31015.h"
-#include "machine/clock.h"
-#include "machine/ram.h"
-#include "machine/z80pio.h"
-
-#include "machine/timer.h"
-#include "speaker.h"
-
-#include "bus/generic/slot.h"
-#include "bus/generic/carts.h"
-#include "bus/nasbus/nasbus.h"
-
-#include "emupal.h"
-#include "softlist.h"
-#include "screen.h"
-
-
-//**************************************************************************
-// TYPE DEFINITIONS
-//**************************************************************************
-
-class nascom_state : public driver_device
-{
-public:
- nascom_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , m_maincpu(*this, "maincpu")
- , m_ram(*this, RAM_TAG)
- , m_hd6402(*this, "hd6402")
- , m_cass(*this, "cassette")
- , m_screen(*this, "screen")
- , m_gfxdecode(*this, "gfxdecode")
- , m_palette(*this, "palette")
- , m_videoram(*this, "videoram")
- , m_gfx1_region(*this, "gfx1")
- , m_keyboard(*this, "KEY.%u", 0)
- { }
-
- void nascom(machine_config &config);
-
- void init_nascom();
-
-protected:
- required_device<cpu_device> m_maincpu;
- required_device<ram_device> m_ram;
-
- virtual void machine_reset() override;
-
- DECLARE_READ8_MEMBER(nascom1_port_00_r);
- DECLARE_WRITE8_MEMBER(nascom1_port_00_w);
- DECLARE_READ8_MEMBER(nascom1_port_01_r);
- DECLARE_WRITE8_MEMBER(nascom1_port_01_w);
- DECLARE_READ8_MEMBER(nascom1_port_02_r);
- DECLARE_READ_LINE_MEMBER(hd6402_si);
- DECLARE_WRITE_LINE_MEMBER(hd6402_so);
-
- void screen_update(bitmap_ind16 &bitmap, const rectangle &cliprect, int char_height);
-
- required_device<ay31015_device> m_hd6402;
- required_device<cassette_image_device> m_cass;
- required_device<screen_device> m_screen;
- required_device<gfxdecode_device> m_gfxdecode;
- required_device<palette_device> m_palette;
- required_shared_ptr<uint8_t> m_videoram;
- required_memory_region m_gfx1_region;
- required_ioport_array<8> m_keyboard;
-
- int m_tape_size;
- uint8_t *m_tape_image;
- int m_tape_index;
- uint8_t m_kb_select;
- uint8_t m_kb_control;
- bool m_cassinbit, m_cassoutbit, m_cassold;
- u8 m_port00;
-
- DECLARE_DEVICE_IMAGE_LOAD_MEMBER( load_nascom1_cassette );
- DECLARE_DEVICE_IMAGE_UNLOAD_MEMBER( unload_nascom1_cassette );
- template<int Dest> DECLARE_SNAPSHOT_LOAD_MEMBER( snapshot_cb );
-};
-
-class nascom1_state : public nascom_state
-{
-public:
- nascom1_state(const machine_config &mconfig, device_type type, const char *tag)
- : nascom_state(mconfig, type, tag)
- { }
-
- void nascom1(machine_config &config);
- uint32_t screen_update_nascom(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
-
-private:
- void nascom1_io(address_map &map);
- void nascom1_mem(address_map &map);
- TIMER_DEVICE_CALLBACK_MEMBER(nascom1_kansas_r);
- DECLARE_WRITE_LINE_MEMBER(nascom1_kansas_w);
- u16 m_cass_cnt[2];
-};
-
-class nascom2_state : public nascom_state
-{
-public:
- nascom2_state(const machine_config &mconfig, device_type type, const char *tag)
- : nascom_state(mconfig, type, tag)
- , m_clock(*this, "uart_clock")
- , m_nasbus(*this, "nasbus")
- , m_socket1(*this, "socket1")
- , m_socket2(*this, "socket2")
- , m_lsw1(*this, "lsw1")
- { }
-
- void nascom2(machine_config &config);
- void nascom2c(machine_config &config);
-
- void init_nascom2c();
-
- DECLARE_INPUT_CHANGED_MEMBER(cass_speed);
-
-private:
- TIMER_DEVICE_CALLBACK_MEMBER(nascom2_kansas_r);
- DECLARE_MACHINE_RESET(nascom2);
- DECLARE_WRITE_LINE_MEMBER(nascom2_kansas_w);
- DECLARE_WRITE_LINE_MEMBER(ram_disable_w);
- DECLARE_WRITE_LINE_MEMBER(ram_disable_cpm_w);
- uint32_t screen_update_nascom(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
-
- image_init_result load_cart(device_image_interface &image, generic_slot_device *slot, int slot_id);
- DECLARE_DEVICE_IMAGE_LOAD_MEMBER(socket1_load) { return load_cart(image, m_socket1, 1); }
- DECLARE_DEVICE_IMAGE_LOAD_MEMBER(socket2_load) { return load_cart(image, m_socket2, 2); }
-
- void nascom2_io(address_map &map);
- void nascom2_mem(address_map &map);
- void nascom2c_mem(address_map &map);
-
- required_device<clock_device> m_clock;
- required_device<nasbus_device> m_nasbus;
- required_device<generic_slot_device> m_socket1;
- required_device<generic_slot_device> m_socket2;
- required_ioport m_lsw1;
- u8 m_cass_data[4];
- bool m_cass_speed;
-};
-
-
-//**************************************************************************
-// KEYBOARD
-//**************************************************************************
-
-READ8_MEMBER( nascom_state::nascom1_port_00_r )
-{
- return m_keyboard[m_kb_select]->read() | ~0x7f;
-}
-
-WRITE8_MEMBER( nascom_state::nascom1_port_00_w )
-{
- u8 bits = data ^ m_port00;
-
- if (BIT(bits, 4))
- m_cass->change_state(BIT(data, 4) ? CASSETTE_MOTOR_ENABLED : CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR);
-
- // d0 falling edge: increment keyboard matrix column select counter
- if (m_kb_control & ~data & 1)
- m_kb_select = (m_kb_select + 1) & 7;
-
- // d1 falling edge: reset it
- if (m_kb_control & ~data & 2)
- m_kb_select = 0;
-
- m_kb_control = data & 3;
-}
-
-
-//**************************************************************************
-// CASSETTE
-//**************************************************************************
-
-READ8_MEMBER( nascom_state::nascom1_port_01_r )
-{
- return m_hd6402->get_received_data();
-}
-
-WRITE8_MEMBER( nascom_state::nascom1_port_01_w )
-{
- m_hd6402->set_transmit_data(data);
-}
-
-READ8_MEMBER( nascom_state::nascom1_port_02_r )
-{
- uint8_t data = 0x31; // bits 0,4,5 not used
-
- m_hd6402->write_swe(0);
- data |= m_hd6402->or_r( ) ? 0x02 : 0;
- data |= m_hd6402->pe_r( ) ? 0x04 : 0;
- data |= m_hd6402->fe_r( ) ? 0x08 : 0;
- data |= m_hd6402->tbmt_r() ? 0x40 : 0;
- data |= m_hd6402->dav_r( ) ? 0x80 : 0;
- m_hd6402->write_swe(1);
-
- return data;
-}
-
-READ_LINE_MEMBER( nascom_state::hd6402_si )
-{
- return m_cassinbit;
-}
-
-WRITE_LINE_MEMBER( nascom_state::hd6402_so )
-{
- m_cassoutbit = state;
-}
-
-WRITE_LINE_MEMBER( nascom1_state::nascom1_kansas_w )
-{
- // incoming 3906.25Hz
- if (state)
- {
- if (m_cassoutbit)
- m_cass->output(BIT(m_cass_cnt[0], 0) ? -1.0 : +1.0); // 1953.125Hz
- else
- m_cass->output(1.0);
-
- m_cass_cnt[0]++;
- }
- m_hd6402->write_tcp(state);
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER( nascom1_state::nascom1_kansas_r )
-{
- // cassette - pulses = 1; no pulses = 0
- m_cass_cnt[1]++;
- bool cass_ws = (m_cass->input() > +0.04) ? 1 : 0;
-
- if (cass_ws != m_cassold)
- {
- m_cassold = cass_ws;
- m_cassinbit = 1;
- m_cass_cnt[1] = 0;
- }
- else
- if (m_cass_cnt[1] > 10)
- {
- m_cass_cnt[1] = 10;
- m_cassinbit = !cass_ws;
- }
-}
-
-WRITE_LINE_MEMBER( nascom2_state::nascom2_kansas_w )
-{
- // incoming @19230Hz
- u8 twobit = m_cass_data[3] & 3;
-
- if (state)
- {
- if (twobit == 0)
- m_cassold = m_cassoutbit;
-
- if (m_cassold)
- m_cass->output(BIT(m_cass_data[3], 2) ? -1.0 : +1.0); // 2400Hz
- else
- m_cass->output(BIT(m_cass_data[3], 3) ? -1.0 : +1.0); // 1200Hz
-
- m_cass_data[3]++;
- }
-
- if (m_cass_speed || !twobit)
- {
- m_hd6402->write_tcp(state);
- m_hd6402->write_rcp(state);
- }
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER( nascom2_state::nascom2_kansas_r )
-{
- /* cassette - turn 1200/2400Hz to a bit */
- m_cass_data[1]++;
- uint8_t cass_ws = (m_cass->input() > +0.04) ? 1 : 0;
-
- if (cass_ws != m_cass_data[0])
- {
- m_cass_data[0] = cass_ws;
- m_cassinbit = (m_cass_data[1] < 12) ? 1 : 0;
- m_cass_data[1] = 0;
- }
-}
-
-// This stuff has never been connected up - what's it for?
-DEVICE_IMAGE_LOAD_MEMBER( nascom_state::load_nascom1_cassette )
-{
- m_tape_size = image.length();
- m_tape_image = (uint8_t*)image.ptr();
-
- if (!m_tape_image)
- return image_init_result::FAIL;
-
- m_tape_index = 0;
- return image_init_result::PASS;
-}
-
-DEVICE_IMAGE_UNLOAD_MEMBER( nascom_state::unload_nascom1_cassette )
-{
- m_tape_image = nullptr;
- m_tape_size = m_tape_index = 0;
-}
-
-
-//**************************************************************************
-// SNAPSHOTS
-//**************************************************************************
-
-template<int Dest>
-SNAPSHOT_LOAD_MEMBER(nascom_state::snapshot_cb)
-{
- uint8_t line[29];
-
- while (image.fread(&line, sizeof(line)) == sizeof(line))
- {
- unsigned int addr, b[8], dummy;
-
- if (sscanf((char *)line, "%4x %x %x %x %x %x %x %x %x",
- &addr, &b[0], &b[1], &b[2], &b[3], &b[4], &b[5], &b[6], &b[7]) == 9)
- {
- for (int i = 0; i < 8; i++)
- {
- switch (Dest)
- {
- case 0: // snapshot
- m_maincpu->space(AS_PROGRAM).write_byte(addr++, b[i]);
- break;
- case 1: // character rom
- m_gfx1_region->base()[addr++] = b[i];
- break;
- }
- }
- }
- else
- {
- image.seterror(IMAGE_ERROR_UNSPECIFIED, "Unsupported file format");
- return image_init_result::FAIL;
- }
- dummy = 0x00;
- while (!image.image_feof() && dummy != 0x0a && dummy != 0x1f)
- {
- image.fread(&dummy, 1);
- }
- }
-
- return image_init_result::PASS;
-}
-
-
-//**************************************************************************
-// SOCKETS
-//**************************************************************************
-
-image_init_result nascom2_state::load_cart(device_image_interface &image, generic_slot_device *slot, int slot_id)
-{
- // loading directly from file
- if (!image.loaded_through_softlist())
- {
- if (slot->length() > 0x1000)
- {
- image.seterror(IMAGE_ERROR_UNSPECIFIED, "Unsupported file size");
- return image_init_result::FAIL;
- }
-
- slot->rom_alloc(slot->length(), GENERIC_ROM8_WIDTH, ENDIANNESS_LITTLE);
- slot->fread(slot->get_rom_base(), slot->length());
-
- // we just assume that socket1 should be loaded to 0xc000 and socket2 to 0xd000
- switch (slot_id)
- {
- case 1:
- m_maincpu->space(AS_PROGRAM).install_rom(0xc000, 0xc000 + slot->length() - 1, slot->get_rom_base());
- break;
- case 2:
- m_maincpu->space(AS_PROGRAM).install_rom(0xd000, 0xd000 + slot->length() - 1, slot->get_rom_base());
- break;
- }
- }
-
- // loading from software list. this supports multiple regions to load to
- else
- {
- uint8_t *region_b000 = image.get_software_region("b000");
- uint8_t *region_c000 = image.get_software_region("c000");
- uint8_t *region_d000 = image.get_software_region("d000");
-
- if (region_b000 != nullptr)
- {
- uint32_t size = image.get_software_region_length("b000");
- m_maincpu->space(AS_PROGRAM).install_rom(0xb000, 0xb000 + size - 1, region_b000);
- }
-
- if (region_c000 != nullptr)
- {
- uint32_t size = image.get_software_region_length("c000");
- m_maincpu->space(AS_PROGRAM).install_rom(0xc000, 0xc000 + size - 1, region_c000);
- }
-
- if (region_d000 != nullptr)
- {
- uint32_t size = image.get_software_region_length("d000");
- m_maincpu->space(AS_PROGRAM).install_rom(0xd000, 0xd000 + size - 1, region_d000);
- }
- }
-
- return image_init_result::PASS;
-}
-
-
-//**************************************************************************
-// DRIVER INIT
-//**************************************************************************
-
-void nascom_state::machine_reset()
-{
- m_kb_select = 0;
- m_kb_control = 0;
- m_port00 = 0;
-
- // Set up hd6402 pins
- m_hd6402->write_swe(1);
-
- m_hd6402->write_cs(0);
- m_hd6402->write_np(1);
- m_hd6402->write_nb1(1);
- m_hd6402->write_nb2(1);
- m_hd6402->write_eps(1);
- m_hd6402->write_tsb(1);
- m_hd6402->write_cs(1);
-}
-
-MACHINE_RESET_MEMBER(nascom2_state, nascom2)
-{
- machine_reset();
-
- // nascom2: restore speed at machine start
- m_cass_speed = ioport("DSW0")->read();
-
- // base machine reset
- nascom_state::machine_reset();
-
- // restart address (on the real system, a12 to a15 are forced to 1 for one memory cycle)
- m_maincpu->set_state_int(Z80_PC, m_lsw1->read() << 12);
-}
-
-void nascom_state::init_nascom()
-{
- // install extra memory
- if (m_ram->size() > 0)
- {
- m_maincpu->space(AS_PROGRAM).install_ram(0x1000, 0x1000 + m_ram->size() - 1, m_ram->pointer());
- }
-}
-
-
-// since we don't know for which regions we should disable ram, we just let other devices
-// overwrite the region they need, and re-install our ram when they are disabled
-WRITE_LINE_MEMBER( nascom2_state::ram_disable_w )
-{
- if (state)
- {
- // enable ram again
- m_maincpu->space(AS_PROGRAM).install_ram(0x1000, 0x1000 + m_ram->size() - 1, m_ram->pointer());
- }
-}
-
-void nascom2_state::init_nascom2c()
-{
- // install memory
- m_maincpu->space(AS_PROGRAM).install_ram(0x0000, 0x0000 + m_ram->size() - 1, m_ram->pointer());
-}
-
-WRITE_LINE_MEMBER( nascom2_state::ram_disable_cpm_w )
-{
- if (state)
- {
- // enable ram again
- m_maincpu->space(AS_PROGRAM).install_ram(0x0000, 0x0000 + m_ram->size() - 1, m_ram->pointer());
- }
-}
-
-
-//**************************************************************************
-// VIDEO
-//**************************************************************************
-
-static const gfx_layout nascom1_charlayout =
-{
- 8, 16,
- 128,
- 1,
- { 0 },
- { 0, 1, 2, 3, 4, 5, 6, 7 },
- { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
- 8*8, 9*8,10*8,11*8,12*8,13*8,14*8,15*8 },
- 8 * 16
-};
-
-static GFXDECODE_START( gfx_nascom1 )
- GFXDECODE_ENTRY("gfx1", 0x0000, nascom1_charlayout, 0, 1)
-GFXDECODE_END
-
-uint32_t nascom1_state::screen_update_nascom(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- screen_update(bitmap, cliprect, 16);
- return 0;
-}
-
-static const gfx_layout nascom2_charlayout =
-{
- 8, 14,
- 256,
- 1,
- { 0 },
- { 0, 1, 2, 3, 4, 5, 6, 7 },
- { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8,
- 7*8, 8*8, 9*8, 10*8, 11*8, 12*8, 13*8 },
- 8 * 16
-};
-
-static GFXDECODE_START( gfx_nascom2 )
- GFXDECODE_ENTRY("gfx1", 0x0000, nascom2_charlayout, 0, 1)
-GFXDECODE_END
-
-uint32_t nascom2_state::screen_update_nascom(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- screen_update(bitmap, cliprect, 14);
- return 0;
-}
-
-void nascom_state::screen_update(bitmap_ind16 &bitmap, const rectangle &cliprect, int char_height)
-{
- for (int sx = 0; sx < 48; sx++)
- {
- m_gfxdecode->gfx(0)->opaque(bitmap,cliprect, m_videoram[0x03ca + sx], 1, 0, 0, sx * 8, 0);
- }
-
- for (int sy = 0; sy < 15; sy++)
- {
- for (int sx = 0; sx < 48; sx++)
- {
- m_gfxdecode->gfx(0)->opaque(bitmap,cliprect, m_videoram[0x000a + (sy * 64) + sx], 1, 0, 0, sx * 8, (sy + 1) * char_height);
- }
- }
-}
-
-
-//**************************************************************************
-// ADDRESS MAPS
-//**************************************************************************
-
-void nascom1_state::nascom1_mem(address_map &map)
-{
- map(0x0000, 0x07ff).rom(); // MONITOR
- map(0x0800, 0x0bff).ram().share("videoram");
- map(0x0c00, 0x0fff).ram(); // WRAM
-}
-
-void nascom1_state::nascom1_io(address_map &map)
-{
- map.global_mask(0x0f);
- map(0x00, 0x00).rw(FUNC(nascom1_state::nascom1_port_00_r), FUNC(nascom1_state::nascom1_port_00_w));
- map(0x01, 0x01).rw(FUNC(nascom1_state::nascom1_port_01_r), FUNC(nascom1_state::nascom1_port_01_w));
- map(0x02, 0x02).r(FUNC(nascom1_state::nascom1_port_02_r));
- map(0x04, 0x07).rw("z80pio", FUNC(z80pio_device::read), FUNC(z80pio_device::write));
-}
-
-void nascom2_state::nascom2_mem(address_map &map)
-{
- map(0x0000, 0x07ff).rom(); // MONITOR
- map(0x0800, 0x0bff).ram().share("videoram");
- map(0x0c00, 0x0fff).ram(); // WRAM
- map(0xe000, 0xffff).rom().region("basic", 0);
-}
-
-void nascom2_state::nascom2_io(address_map &map)
-{
- map.global_mask(0xff);
- map(0x00, 0x00).rw(FUNC(nascom2_state::nascom1_port_00_r), FUNC(nascom2_state::nascom1_port_00_w));
- map(0x01, 0x01).rw(FUNC(nascom2_state::nascom1_port_01_r), FUNC(nascom2_state::nascom1_port_01_w));
- map(0x02, 0x02).r(FUNC(nascom2_state::nascom1_port_02_r));
- map(0x04, 0x07).rw("z80pio", FUNC(z80pio_device::read), FUNC(z80pio_device::write));
-}
-
-void nascom2_state::nascom2c_mem(address_map &map)
-{
- map(0xf000, 0xf7ff).rom().region("maincpu", 0);
- map(0xf800, 0xfbff).ram().share("videoram");
- map(0xfc00, 0xffff).ram(); // WRAM
-}
-
-
-//**************************************************************************
-// INPUT PORTS
-//**************************************************************************
-
-static INPUT_PORTS_START( nascom1 )
- PORT_START("KEY.0")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Backspace ClearScreen") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(8)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("New Line") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@')
- PORT_BIT(0x48, IP_ACTIVE_LOW, IPT_UNUSED)
-
- PORT_START("KEY.1")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_CHAR('h')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_CHAR('b')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_CHAR('f')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_CHAR('x')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_CHAR('t')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
-
- PORT_START("KEY.2")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_CHAR('j')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_CHAR('n')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_CHAR('d')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_CHAR('z')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_CHAR('y')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
-
- PORT_START("KEY.3")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_CHAR('k')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_CHAR('m')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_CHAR('e')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_CHAR('s')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_CHAR('u')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
-
- PORT_START("KEY.4")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_CHAR('l')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_CHAR('w')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_CHAR('a')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_CHAR('i')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
-
- PORT_START("KEY.5")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR(0xA3)
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_CHAR('q')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_CHAR('o')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
-
- PORT_START("KEY.6")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('\"')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_CHAR('p')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
-
- PORT_START("KEY.7")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_CHAR('g')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_CHAR('v')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_CHAR('c')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_CHAR('r')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
-INPUT_PORTS_END
-
-static INPUT_PORTS_START( nascom2 )
- PORT_INCLUDE(nascom1)
- PORT_MODIFY("KEY.0")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Back CS") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(8)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Enter Escape") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_CHAR(27)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
-
- PORT_MODIFY("KEY.6")
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('[') PORT_CHAR('\\')
-
- PORT_MODIFY("KEY.7")
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(']') PORT_CHAR('_')
-
- PORT_START("DSW0")
- PORT_DIPNAME(0x01, 0x00, "Cassette Baud Rate") PORT_CHANGED_MEMBER(DEVICE_SELF, nascom2_state, cass_speed, 0)
- PORT_DIPSETTING(0x00, "300")
- PORT_DIPSETTING(0x01, "1200")
-
- // link switch on board
- PORT_START("lsw1")
- PORT_DIPNAME(0x0f, 0x00, "Restart address")
- PORT_DIPLOCATION("LSW1:1,2,3,4")
- PORT_DIPSETTING(0x00, "0000H")
- PORT_DIPSETTING(0x01, "1000H")
- PORT_DIPSETTING(0x02, "2000H")
- PORT_DIPSETTING(0x03, "3000H")
- PORT_DIPSETTING(0x04, "4000H")
- PORT_DIPSETTING(0x05, "5000H")
- PORT_DIPSETTING(0x06, "6000H")
- PORT_DIPSETTING(0x07, "7000H")
- PORT_DIPSETTING(0x08, "8000H")
- PORT_DIPSETTING(0x09, "9000H")
- PORT_DIPSETTING(0x0a, "A000H")
- PORT_DIPSETTING(0x0b, "B000H")
- PORT_DIPSETTING(0x0c, "C000H")
- PORT_DIPSETTING(0x0d, "D000H")
- PORT_DIPSETTING(0x0e, "E000H")
- PORT_DIPSETTING(0x0f, "F000H")
-INPUT_PORTS_END
-
-static INPUT_PORTS_START( nascom2c )
- PORT_INCLUDE(nascom2)
-
- PORT_MODIFY("lsw1")
- PORT_DIPNAME(0x0f, 0x0f, "Restart address")
- PORT_DIPLOCATION("LSW1:1,2,3,4")
- PORT_DIPSETTING(0x00, "0000H")
- PORT_DIPSETTING(0x01, "1000H")
- PORT_DIPSETTING(0x02, "2000H")
- PORT_DIPSETTING(0x03, "3000H")
- PORT_DIPSETTING(0x04, "4000H")
- PORT_DIPSETTING(0x05, "5000H")
- PORT_DIPSETTING(0x06, "6000H")
- PORT_DIPSETTING(0x07, "7000H")
- PORT_DIPSETTING(0x08, "8000H")
- PORT_DIPSETTING(0x09, "9000H")
- PORT_DIPSETTING(0x0a, "A000H")
- PORT_DIPSETTING(0x0b, "B000H")
- PORT_DIPSETTING(0x0c, "C000H")
- PORT_DIPSETTING(0x0d, "D000H")
- PORT_DIPSETTING(0x0e, "E000H")
- PORT_DIPSETTING(0x0f, "F000H")
-INPUT_PORTS_END
-
-INPUT_CHANGED_MEMBER(nascom2_state::cass_speed)
-{
- m_cass_speed = newval ? 1 : 0;
-}
-
-
-//**************************************************************************
-// MACHINE DRIVERS
-//**************************************************************************
-
-void nascom_state::nascom(machine_config &config)
-{
- // video hardware
- SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
- m_screen->set_refresh_hz(50);
- m_screen->set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
- m_screen->set_size(48 * 8, 16 * 16);
- m_screen->set_visarea(0, 48 * 8 - 1, 0, 16 * 16 - 1);
- m_screen->set_screen_update(FUNC(nascom1_state::screen_update_nascom));
- m_screen->set_palette(m_palette);
-
- GFXDECODE(config, m_gfxdecode, m_palette, gfx_nascom1);
- PALETTE(config, m_palette, palette_device::MONOCHROME);
-
- // pio
- Z80PIO(config, "z80pio", 16_MHz_XTAL / 8);
-
- // internal extra ram
- RAM(config, m_ram).set_default_size("48K").set_extra_options("8K,16K,32K");
-
- // uart
- AY31015(config, m_hd6402);
- m_hd6402->read_si_callback().set(FUNC(nascom_state::hd6402_si));
- m_hd6402->write_so_callback().set(FUNC(nascom_state::hd6402_so));
- m_hd6402->set_auto_rdav(true);
-
- // cassette is connected to the uart
- CASSETTE(config, m_cass);
- m_cass->set_interface("nascom_cass");
- m_cass->set_default_state(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_ENABLED);
- SPEAKER(config, "mono").front_center();
- m_cass->add_route(ALL_OUTPUTS, "mono", 0.05);
-
- // devices
- snapshot_image_device &snapshot(SNAPSHOT(config, "snapshot", "nas", attotime::from_msec(500)));
- snapshot.set_load_callback(FUNC(nascom_state::snapshot_cb<0>));
- snapshot.set_interface("nascom_snap");
- snapshot_image_device &snapchar(SNAPSHOT(config, "snapchar", "chr", attotime::from_msec(500)));
- snapchar.set_load_callback(FUNC(nascom_state::snapshot_cb<1>));
- snapchar.set_interface("nascom_char");
-}
-
-void nascom1_state::nascom1(machine_config &config)
-{
- nascom(config);
-
- Z80(config, m_maincpu, 16_MHz_XTAL / 8);
- m_maincpu->set_addrmap(AS_PROGRAM, &nascom1_state::nascom1_mem);
- m_maincpu->set_addrmap(AS_IO, &nascom1_state::nascom1_io);
-
- // software
- SOFTWARE_LIST(config, "snap_list").set_original("nascom_snap").set_filter("NASCOM1");
-
- clock_device &uart_clock(CLOCK(config, "uart_clock", (16_MHz_XTAL / 16) / 256));
- uart_clock.signal_handler().set(FUNC(nascom1_state::nascom1_kansas_w));
- uart_clock.signal_handler().append(m_hd6402, FUNC(ay31015_device::write_rcp));
- TIMER(config, "kansas_r").configure_periodic(FUNC(nascom1_state::nascom1_kansas_r), attotime::from_hz(40000));
-}
-
-void nascom2_state::nascom2(machine_config &config)
-{
- nascom(config);
-
- Z80(config, m_maincpu, 16_MHz_XTAL / 4);
- m_maincpu->set_addrmap(AS_PROGRAM, &nascom2_state::nascom2_mem);
- m_maincpu->set_addrmap(AS_IO, &nascom2_state::nascom2_io);
-
- MCFG_MACHINE_RESET_OVERRIDE(nascom2_state, nascom2 )
-
- // video hardware
- m_screen->set_size(48 * 8, 16 * 14);
- m_screen->set_visarea(0, 48 * 8 - 1, 0, 16 * 14 - 1);
- m_screen->set_screen_update(FUNC(nascom2_state::screen_update_nascom));
-
- m_gfxdecode->set_info(gfx_nascom2);
-
- // generic sockets for ram/rom (todo: support ram here)
- GENERIC_SOCKET(config, m_socket1, generic_plain_slot, "nascom_socket", "bin,rom");
- m_socket1->set_device_load(FUNC(nascom2_state::socket1_load));
- GENERIC_SOCKET(config, m_socket2, generic_plain_slot, "nascom_socket", "bin,rom");
- m_socket2->set_device_load(FUNC(nascom2_state::socket2_load));
-
- // nasbus expansion bus
- NASBUS(config, m_nasbus);
- m_nasbus->ram_disable().set(FUNC(nascom2_state::ram_disable_w));
- m_nasbus->set_program_space(m_maincpu, AS_PROGRAM);
- m_nasbus->set_io_space(m_maincpu, AS_IO);
- NASBUS_SLOT(config, "nasbus1", m_nasbus, nasbus_slot_cards, nullptr);
- NASBUS_SLOT(config, "nasbus2", m_nasbus, nasbus_slot_cards, nullptr);
- NASBUS_SLOT(config, "nasbus3", m_nasbus, nasbus_slot_cards, nullptr);
- NASBUS_SLOT(config, "nasbus4", m_nasbus, nasbus_slot_cards, nullptr);
-
- // software
- SOFTWARE_LIST(config, "snap_list").set_original("nascom_snap").set_filter("NASCOM2");
- SOFTWARE_LIST(config, "socket_list").set_original("nascom_socket");
- SOFTWARE_LIST(config, "floppy_list").set_original("nascom_flop");
-
- CLOCK(config, m_clock, (16_MHz_XTAL / 32) / 26);
- m_clock->signal_handler().set(FUNC(nascom2_state::nascom2_kansas_w));
- TIMER(config, "kansas_r").configure_periodic(FUNC(nascom2_state::nascom2_kansas_r), attotime::from_hz(40000));
-}
-
-void nascom2_state::nascom2c(machine_config &config)
-{
- nascom2(config);
-
- m_maincpu->set_addrmap(AS_PROGRAM, &nascom2_state::nascom2c_mem);
-
- m_ram->set_default_size("60K");
-
- m_nasbus->ram_disable().set(FUNC(nascom2_state::ram_disable_cpm_w));
- subdevice<nasbus_slot_device>("nasbus1")->set_default_option("floppy");
-}
-
-
-//**************************************************************************
-// ROM DEFINITIONS
-//**************************************************************************
-
-ROM_START( nascom1 )
- ROM_REGION(0x0800, "maincpu", 0)
- ROM_DEFAULT_BIOS("t4")
- ROM_SYSTEM_BIOS(0, "t1", "NasBug T1")
- ROMX_LOAD("nasbugt1.ic38", 0x0000, 0x0400, CRC(8ea07054) SHA1(3f9a8632826003d6ea59d2418674d0fb09b83a4c), ROM_BIOS(0))
- ROM_SYSTEM_BIOS(1, "t2", "NasBug T2")
- ROMX_LOAD("nasbugt2.ic38", 0x0000, 0x0400, CRC(e371b58a) SHA1(485b20a560b587cf9bb4208ba203b12b3841689b), ROM_BIOS(1))
- ROM_SYSTEM_BIOS(2, "t4", "NasBug T4")
- ROMX_LOAD("nasbugt4.rom", 0x0000, 0x0800, CRC(f391df68) SHA1(00218652927afc6360c57e77d6a4fd32d4e34566), ROM_BIOS(2)) // should really be split in halves for ic38 and ic39
- ROM_SYSTEM_BIOS(3, "bbug", "B-Bug") // by Viewfax 1978
- ROMX_LOAD("bbug.rom", 0x0000, 0x0800, CRC(1b1a340d) SHA1(99ce4d771871b3d797cc465d6245c40e41acef3e), ROM_BIOS(3))
-
- ROM_REGION(0x0800, "gfx1", 0)
- ROM_LOAD("nascom1.ic16", 0x0000, 0x0800, CRC(33e92a04) SHA1(be6e1cc80e7f95a032759f7df19a43c27ff93a52)) // MCM6576P
-ROM_END
-
-ROM_START( nascom2 )
- ROM_REGION(0x0800, "maincpu", 0)
- ROM_DEFAULT_BIOS("ns3")
- ROM_SYSTEM_BIOS(0, "ns1", "Nas-Sys 1")
- ROMX_LOAD("nassys1.ic34", 0x0000, 0x0800, CRC(b6300716) SHA1(29da7d462ba3f569f70ed3ecd93b981f81c7adfa), ROM_BIOS(0))
- ROM_SYSTEM_BIOS(1, "ns3", "Nas-Sys 3")
- ROMX_LOAD("nassys3.ic34", 0x0000, 0x0800, CRC(6804e675) SHA1(d55dccec2d1da992a39c38b0b6d24e3809073513), ROM_BIOS(1))
- ROM_SYSTEM_BIOS(2, "ns3a", "Nas-Sys 3 (AVC)")
- ROMX_LOAD("nassys3a.ic34", 0x0000, 0x0800, CRC(39d24a05) SHA1(7bfb574c1f8ce0f460a53b9a6c11c711aabccbb8), ROM_BIOS(2))
- ROM_SYSTEM_BIOS(3, "ns3n", "Nas-Sys 3 (NET)")
- ROMX_LOAD("nassys3n.ic34", 0x0000, 0x0800, CRC(87ef62bb) SHA1(dab81511925be36044b3e8b0ba26a0c717fe83ae), ROM_BIOS(3))
-
- ROM_REGION(0x2000, "basic", 0)
- ROM_LOAD("basic.ic43", 0x0000, 0x2000, CRC(5cb5197b) SHA1(c41669c2b6d6dea808741a2738426d97bccc9b07))
-
- ROM_REGION(0x1000, "gfx1", 0)
- ROM_LOAD("nascom1.ic66", 0x0000, 0x0800, CRC(33e92a04) SHA1(be6e1cc80e7f95a032759f7df19a43c27ff93a52))
- ROM_LOAD("nasgra.ic54", 0x0800, 0x0800, CRC(2bc09d32) SHA1(d384297e9b02cbcb283c020da51b3032ff62b1ae))
-ROM_END
-
-ROM_START( nascom2c )
- ROM_REGION(0x0800, "maincpu", 0)
- ROM_DEFAULT_BIOS("cpm32")
- ROM_SYSTEM_BIOS(0, "cpm21", "CP/M boot v2.1")
- ROMX_LOAD("cpmbt21.ic34", 0x0000, 0x0800, CRC(44b67ffc) SHA1(60c8335f24798f8de7ad48a4cd03e56a60d87b63), ROM_BIOS(0))
- ROM_SYSTEM_BIOS(1, "cpm32", "CP/M boot v3.2")
- ROMX_LOAD("cpmbt32.ic34", 0x0000, 0x0800, CRC(724f03ba) SHA1(d0958c231e5b121b6c4c97d03c76c207acf90f5a), ROM_BIOS(1))
-
- ROM_REGION(0x1000, "gfx1", 0)
- ROM_LOAD("nascom1.ic66", 0x0000, 0x0800, CRC(33e92a04) SHA1(be6e1cc80e7f95a032759f7df19a43c27ff93a52))
- ROM_LOAD("nasgra.ic54", 0x0800, 0x0800, CRC(2bc09d32) SHA1(d384297e9b02cbcb283c020da51b3032ff62b1ae))
-ROM_END
-
-
-//**************************************************************************
-// GAME DRIVERS
-//**************************************************************************
-
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP( 1978, nascom1, 0, 0, nascom1, nascom1, nascom1_state, init_nascom, "Nascom Microcomputers", "Nascom 1", MACHINE_NO_SOUND_HW )
-COMP( 1979, nascom2, 0, 0, nascom2, nascom2, nascom2_state, init_nascom, "Nascom Microcomputers", "Nascom 2", MACHINE_NO_SOUND_HW )
-COMP( 1980, nascom2c, nascom2, 0, nascom2c, nascom2c, nascom2_state, init_nascom2c, "Nascom Microcomputers", "Nascom 2 (CP/M)", MACHINE_NO_SOUND_HW )