diff options
Diffstat (limited to 'src/mame/drivers/abc80.cpp')
-rw-r--r-- | src/mame/drivers/abc80.cpp | 605 |
1 files changed, 0 insertions, 605 deletions
diff --git a/src/mame/drivers/abc80.cpp b/src/mame/drivers/abc80.cpp deleted file mode 100644 index 42e2c09386b..00000000000 --- a/src/mame/drivers/abc80.cpp +++ /dev/null @@ -1,605 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Curt Coder -/* - -Luxor ABC 80 - -PCB Layout ----------- - -55 10470-02 - - CN1 CN2 CN5 - SW1 |-----| |------------------------| |-----| -|-------| |--| |----------------------------------| |---| -| CN3 CN4 | -| 7912 | -| MC1488 | -| MC1489 7812 | -| LS245 LS138 | -| |-------| | -| |-----CN6-----| LS241 LS241 LS138 LS32 |SN76477| LS04 LM339 | -| |-------| | -| |--------------| |------------| PROM0 LS132 LS273 7406 LS08 | -| | Z80A PIO | | Z80A | | -| |--------------| |------------| LS04 LS74A LS86 LS161 LS166 74393 | -| | -| ROM3 LS107 4116 4116 LS10 LS257 LS74A LS08 LS107 PROM2 | -| | -| ROM2 LS257 4116 4116 LS139 74393 LS107 LS32 LS175 74393 | -| | -| ROM1 LS257 4116 4116 LS08 LS283 LS10 LS32 PROM1 74393 | -| | -| ROM0 LS257 4116 4116 LS257 74393 LS375 74S263 LS145 PROM4 | -| | -| DIPSW1 DIPSW2 4045 4045 LS257 LS245 LS375 LS273 LS166 PROM3 | -|--------------------------------------------------------------------------------------| - -Notes: - All IC's shown. - - ROM0-3 - Texas Instruments TMS4732 4Kx8 General Purpose Mask Programmable ROM - PROM0-2 - Philips Semiconductors N82S129 256x4 TTL Bipolar PROM - PROM3-4 - Philips Semiconductors N82S131 512x4 TTL Bipolar PROM - 4116 - Texas Instruments TMS4116-25 16Kx1 Dynamic RAM - 4045 - Texas Instruments TMS4045-15 1Kx4 General Purpose Static RAM with Multiplexed I/O - Z80A - Sharp LH0080A Z80A CPU - Z80APIO - SGS-Thomson Z8420AB1 Z80A PIO - SN76477 - Texas Instruments SN76477N Complex Sound Generator - 74S263 - Texas Instruments SN74S263N Row Output Character Generator - MC1488 - Texas Instruments MC1488 Quadruple Line Driver - MC1489 - Texas Instruments MC1489 Quadruple Line Receiver - CN1 - RS-232 connector - CN2 - ABC bus connector (DIN 41612) - CN3 - video connector - CN4 - cassette motor connector - CN5 - cassette connector - CN6 - keyboard connector - SW1 - reset switch - DIPSW1 - - DIPSW2 - - -ROM checksum program: - 10 FOR I%=0% TO 16383% - 20 A%=A%+PEEK(I%) - 30 NEXT I% - 40 ;A%; I% -*/ - -/* - - TODO: - - - PWM sound in ABC-klubben/abc80/grafik/flagga.bac - - proper keyboard controller emulation - - MyAB TKN80 80-column card - - GeJo 80-column card - - Mikrodatorn 64K expansion - - Metric ABC CAD 1000 - - ROMs with checksum 10042 - -*/ - -#include "emu.h" -#include "includes/abc80.h" -#include "screen.h" -#include "softlist.h" -#include "speaker.h" - - -//************************************************************************** -// CONSTANTS -//************************************************************************** - -#define LOG 0 - - - -//************************************************************************** -// MEMORY MANAGEMENT -//************************************************************************** - -//------------------------------------------------- -// read - -//------------------------------------------------- - -u8 abc80_state::read(offs_t offset) -{ - u8 data = 0xff; - u8 mmu = m_mmu_rom->base()[0x40 | (offset >> 10)]; - - if (!(mmu & MMU_XM)) - { - data = m_bus->xmemfl_r(offset); - } - else if (!(mmu & MMU_ROM)) - { - data = m_rom->base()[offset & 0x3fff]; - } - else if (mmu & MMU_VRAMS) - { - data = m_video_ram[offset & 0x3ff]; - } - else if (!(mmu & MMU_RAM)) - { - data = m_ram->pointer()[offset & 0x3fff]; - } - - return data; -} - - -//------------------------------------------------- -// write - -//------------------------------------------------- - -void abc80_state::write(offs_t offset, u8 data) -{ - u8 mmu = m_mmu_rom->base()[0x40 | (offset >> 10)]; - - if (!(mmu & MMU_XM)) - { - m_bus->xmemw_w(offset, data); - } - else if (mmu & MMU_VRAMS) - { - m_video_ram[offset & 0x3ff] = data; - } - else if (!(mmu & MMU_RAM)) - { - m_ram->pointer()[offset & 0x3fff] = data; - } -} - - - -//************************************************************************** -// SOUND -//************************************************************************** - -//------------------------------------------------- -// csg_w - -//------------------------------------------------- - -void abc80_state::csg_w(u8 data) -{ - m_csg->enable_w(!BIT(data, 0)); - m_csg->vco_voltage_w(BIT(data, 1) ? 2.5 : 0); - m_csg->vco_w(BIT(data, 2)); - m_csg->mixer_b_w(BIT(data, 3)); - m_csg->mixer_a_w(BIT(data, 4)); - m_csg->mixer_c_w(BIT(data, 5)); - m_csg->envelope_2_w(BIT(data, 6)); - m_csg->envelope_1_w(BIT(data, 7)); -} - - - -//************************************************************************** -// ADDRESS MAPS -//************************************************************************** - -//------------------------------------------------- -// ADDRESS_MAP( abc80_mem ) -//------------------------------------------------- - -void abc80_state::abc80_mem(address_map &map) -{ - map.unmap_value_high(); - map(0x0000, 0xffff).rw(FUNC(abc80_state::read), FUNC(abc80_state::write)); -} - - -//------------------------------------------------- -// ADDRESS_MAP( abc80_io ) -//------------------------------------------------- - -void abc80_state::abc80_io(address_map &map) -{ - map.unmap_value_high(); - map.global_mask(0x17); - map(0x00, 0x00).rw(m_bus, FUNC(abcbus_slot_device::inp_r), FUNC(abcbus_slot_device::out_w)); - map(0x01, 0x01).rw(m_bus, FUNC(abcbus_slot_device::stat_r), FUNC(abcbus_slot_device::cs_w)); - map(0x02, 0x02).w(m_bus, FUNC(abcbus_slot_device::c1_w)); - map(0x03, 0x03).w(m_bus, FUNC(abcbus_slot_device::c2_w)); - map(0x04, 0x04).w(m_bus, FUNC(abcbus_slot_device::c3_w)); - map(0x05, 0x05).w(m_bus, FUNC(abcbus_slot_device::c4_w)); - map(0x06, 0x06).w(FUNC(abc80_state::csg_w)); - map(0x07, 0x07).r(m_bus, FUNC(abcbus_slot_device::rst_r)); - map(0x10, 0x13).mirror(0x04).rw(m_pio, FUNC(z80pio_device::read_alt), FUNC(z80pio_device::write_alt)); -} - - - -//************************************************************************** -// DEVICE CONFIGURATION -//************************************************************************** - -//------------------------------------------------- -// Z80PIO -//------------------------------------------------- - -u8 abc80_state::pio_pa_r() -{ - /* - - PIO Port A - - bit description - - 0 keyboard data - 1 keyboard data - 2 keyboard data - 3 keyboard data - 4 keyboard data - 5 keyboard data - 6 keyboard data - 7 keyboard strobe - - */ - - u8 data = 0; - - //data |= m_kb->data_r(); - data |= m_key_data; - data |= (m_key_strobe << 7); - - return data; -} - -u8 abc80_state::pio_pb_r() -{ - /* - - PIO Channel B - - 0 R RS-232C RxD - 1 R RS-232C _CTS - 2 R RS-232C _DCD - 3 W RS-232C TxD - 4 W RS-232C _RTS - 5 W Cassette Motor - 6 W Cassette Data - 7 R Cassette Data - - */ - - u8 data = 0; - - // receive data - data |= m_rs232->rxd_r(); - - // clear to send - data |= m_rs232->cts_r() << 1; - - // data carrier detect - data |= m_rs232->dcd_r() << 2; - - // cassette data - data |= m_tape_in_latch << 7; - - if (LOG) logerror("%s %s read tape latch %u\n", machine().time().as_string(), machine().describe_context(), m_tape_in_latch); - - return data; -} - -void abc80_state::pio_pb_w(u8 data) -{ - /* - - PIO Channel B - - 0 R RS-232C RxD - 1 R RS-232C _CTS - 2 R RS-232C _DCD - 3 W RS-232C TxD - 4 W RS-232C _RTS - 5 W Cassette Motor - 6 W Cassette Data - 7 R Cassette Data - - */ - - // transmit data - m_rs232->write_txd(BIT(data, 3)); - - // request to send - m_rs232->write_rts(BIT(data, 4)); - - // cassette motor - if (BIT(data, 5)) - { - if (!m_motor) if (LOG) logerror("%s %s started cassette motor\n", machine().time().as_string(), machine().describe_context()); - m_cassette->change_state(CASSETTE_MOTOR_ENABLED, CASSETTE_MASK_MOTOR); - m_motor = true; - } - else - { - if (m_motor) if (LOG) logerror("%s %s stopped cassette motor\n", machine().time().as_string(), machine().describe_context()); - m_cassette->change_state(CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR); - m_motor = false; - } - - // cassette data - m_cassette->output(BIT(data, 6) ? -1.0 : +1.0); - - // cassette input latch - if (BIT(data, 6)) - { - if (LOG) logerror("%s %s clear tape in latch\n", machine().time().as_string(), machine().describe_context()); - - m_tape_in_latch = 1; - - m_pio->pb7_w(m_tape_in_latch); - } -} - - -//------------------------------------------------- -// Z80 Daisy Chain -//------------------------------------------------- - -static const z80_daisy_config abc80_daisy_chain[] = -{ - { Z80PIO_TAG }, - { nullptr } -}; - - -//------------------------------------------------- -// ABC80_KEYBOARD_INTERFACE -//------------------------------------------------- - -WRITE_LINE_MEMBER( abc80_state::keydown_w ) -{ - m_key_strobe = state; - - m_pio->port_a_write(m_key_strobe << 7); -} - -void abc80_state::kbd_w(u8 data) -{ - m_key_data = data; - m_key_strobe = 1; - - u8 pio_data = 0x80 | data; - m_pio->port_a_write(pio_data); - - timer_set(attotime::from_msec(50), TIMER_ID_FAKE_KEYBOARD_CLEAR); -} - - - -//************************************************************************** -// MACHINE INITIALIZATION -//************************************************************************** - -//------------------------------------------------- -// device_timer - handler timer events -//------------------------------------------------- - -void abc80_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) -{ - switch (id) - { - case TIMER_ID_SCANLINE: - draw_scanline(m_bitmap, m_screen->vpos()); - - m_pio_astb = !m_pio_astb; - - m_pio->strobe_a(m_pio_astb); - break; - - case TIMER_ID_CASSETTE: - { - if (!m_motor) return; - - int tape_in = m_cassette->input() > 0; - - if (m_tape_in != tape_in) - if (LOG) logerror("%s tape flank %u\n", machine().time().as_string(), tape_in); - - if (m_tape_in_latch && (m_tape_in != tape_in)) - { - if (LOG) logerror("%s set tape in latch\n", machine().time().as_string()); - m_tape_in_latch = 0; - - m_pio->port_b_write(m_tape_in_latch << 7); - } - - m_tape_in = tape_in; - } - break; - - case TIMER_ID_BLINK: - m_blink = !m_blink; - break; - - case TIMER_ID_VSYNC_ON: - if (LOG) logerror("%s vsync 1\n", machine().time().as_string()); - m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE); - break; - - case TIMER_ID_VSYNC_OFF: - if (LOG) logerror("%s vsync 0\n", machine().time().as_string()); - m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE); - break; - - case TIMER_ID_FAKE_KEYBOARD_CLEAR: - m_pio->port_a_write(m_key_data); - m_key_strobe = 0; - m_key_data = 0; - break; - } -} - - -//------------------------------------------------- -// MACHINE_START( abc80 ) -//------------------------------------------------- - -void abc80_state::machine_start() -{ - // start timers - m_cassette_timer = timer_alloc(TIMER_ID_CASSETTE); - m_cassette_timer->adjust(attotime::from_hz(44100), 0, attotime::from_hz(44100)); - - // register for state saving - save_item(NAME(m_key_data)); - save_item(NAME(m_key_strobe)); - save_item(NAME(m_pio_astb)); - save_item(NAME(m_latch)); - save_item(NAME(m_blink)); - save_item(NAME(m_motor)); - save_item(NAME(m_tape_in)); - save_item(NAME(m_tape_in_latch)); - - //zero-fill - m_key_data = 0; - m_key_strobe = 0; - m_blink = 0; -} - -QUICKLOAD_LOAD_MEMBER(abc80_state::quickload_cb) -{ - address_space &space = m_maincpu->space(AS_PROGRAM); - - offs_t address = space.read_byte(BOFA + 1) << 8 | space.read_byte(BOFA); - if (LOG) logerror("BOFA %04x\n",address); - - int quickload_size = image.length(); - std::vector<u8> data(quickload_size); - image.fread(&data[0], quickload_size); - for (int i = 1; i < quickload_size; i++) - space.write_byte(address++, data[i]); - - offs_t eofa = address; - space.write_byte(EOFA, eofa & 0xff); - space.write_byte(EOFA + 1, eofa >> 8); - if (LOG) logerror("EOFA %04x\n",address); - - offs_t head = address + 1; - space.write_byte(HEAD, head & 0xff); - space.write_byte(HEAD + 1, head >> 8); - if (LOG) logerror("HEAD %04x\n",address); - - return image_init_result::PASS; -} - - - -//************************************************************************** -// MACHINE DRIVERS -//************************************************************************** - -//------------------------------------------------- -// machine_config( abc80 ) -//------------------------------------------------- - -void abc80_state::abc80(machine_config &config) -{ - // basic machine hardware - Z80(config, m_maincpu, XTAL(11'980'800)/2/2); // 2.9952 MHz - m_maincpu->set_addrmap(AS_PROGRAM, &abc80_state::abc80_mem); - m_maincpu->set_addrmap(AS_IO, &abc80_state::abc80_io); - m_maincpu->set_daisy_config(abc80_daisy_chain); - - // video hardware - abc80_video(config); - - // sound hardware - SPEAKER(config, "mono").front_center(); - SN76477(config, m_csg); - m_csg->set_noise_params(RES_K(47), RES_K(330), CAP_P(390)); - m_csg->set_decay_res(RES_K(47)); - m_csg->set_attack_params(CAP_U(10), RES_K(2.2)); - m_csg->set_amp_res(RES_K(33)); - m_csg->set_feedback_res(RES_K(10)); - m_csg->set_vco_params(0, CAP_N(10), RES_K(100)); - m_csg->set_pitch_voltage(0); - m_csg->set_slf_params(CAP_U(1), RES_K(220)); - m_csg->set_oneshot_params(CAP_U(0.1), RES_K(330)); - m_csg->add_route(ALL_OUTPUTS, "mono", 0.25); - - // devices - Z80PIO(config, m_pio, XTAL(11'980'800)/2/2); - m_pio->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); - m_pio->in_pa_callback().set(FUNC(abc80_state::pio_pa_r)); - m_pio->in_pb_callback().set(FUNC(abc80_state::pio_pb_r)); - m_pio->out_pb_callback().set(FUNC(abc80_state::pio_pb_w)); - - CASSETTE(config, m_cassette); - m_cassette->set_default_state(CASSETTE_STOPPED | CASSETTE_MOTOR_DISABLED | CASSETTE_SPEAKER_ENABLED); - m_cassette->add_route(ALL_OUTPUTS, "mono", 0.05); - m_cassette->set_interface("abc80_cass"); - - ABC80_KEYBOARD(config, m_kb, 0); - m_kb->keydown_wr_callback().set(FUNC(abc80_state::keydown_w)); - - ABCBUS_SLOT(config, m_bus, XTAL(11'980'800)/2/2, abc80_cards, "abcexp"); - - RS232_PORT(config, RS232_TAG, default_rs232_devices, nullptr); - generic_keyboard_device &keyboard(GENERIC_KEYBOARD(config, KEYBOARD_TAG, 0)); - keyboard.set_keyboard_callback(FUNC(abc80_state::kbd_w)); - - QUICKLOAD(config, "quickload", "bac", attotime::from_seconds(2)).set_load_callback(FUNC(abc80_state::quickload_cb)); - - // internal ram - RAM(config, RAM_TAG).set_default_size("16K"); - - // software list - SOFTWARE_LIST(config, "cass_list").set_original("abc80_cass"); - SOFTWARE_LIST(config, "flop_list").set_original("abc80_flop"); -} - - - -//************************************************************************** -// ROMS -//************************************************************************** - -//------------------------------------------------- -// ROM( abc80 ) -//------------------------------------------------- - -ROM_START( abc80 ) - ROM_REGION( 0x4000, Z80_TAG, 0 ) - ROM_DEFAULT_BIOS("9913") - ROM_SYSTEM_BIOS( 0, "11273", "Checksum 11273" ) - ROMX_LOAD( "3506_3.a5", 0x0000, 0x1000, CRC(7c004fb6) SHA1(9aee1d085122f4537c3e6ecdab9d799bd429ef52), ROM_BIOS(0) ) - ROMX_LOAD( "3507_3.a3", 0x1000, 0x1000, CRC(d1850a84) SHA1(f7719f3af9173601a2aa23ae38ae00de1a387ad8), ROM_BIOS(0) ) - ROMX_LOAD( "3508_3.a4", 0x2000, 0x1000, CRC(b55528e9) SHA1(3e5017e8cacad1f13215242f1bbd89d1d3eee131), ROM_BIOS(0) ) - ROMX_LOAD( "3509_3.a2", 0x3000, 0x1000, CRC(659cab1e) SHA1(181db748cef22cdcccd311a60aa6189c85343db7), ROM_BIOS(0) ) - ROM_SYSTEM_BIOS( 1, "9913", "Checksum 9913" ) - ROMX_LOAD( "3506_3_v2.a5", 0x0000, 0x1000, CRC(e2afbf48) SHA1(9883396edd334835a844dcaa792d29599a8c67b9), ROM_BIOS(1) ) - ROMX_LOAD( "3507_3_v2.a3", 0x1000, 0x1000, CRC(d224412a) SHA1(30968054bba7c2aecb4d54864b75a446c1b8fdb1), ROM_BIOS(1) ) - ROMX_LOAD( "3508_3_v2.a4", 0x2000, 0x1000, CRC(1502ba5b) SHA1(5df45909c2c4296e5701c6c99dfaa9b10b3a729b), ROM_BIOS(1) ) - ROMX_LOAD( "3509_3_v2.a2", 0x3000, 0x1000, CRC(bc8860b7) SHA1(28b6cf7f5a4f81e017c2af091c3719657f981710), ROM_BIOS(1) ) - - ROM_REGION( 0xa00, "chargen", 0 ) - ROM_LOAD( "sn74s263.h2", 0x0000, 0x0a00, BAD_DUMP CRC(9e064e91) SHA1(354783c8f2865f73dc55918c9810c66f3aca751f) ) // created by hand - - ROM_REGION( 0x100, "hsync", 0 ) - ROM_LOAD( "abc80_11.k5", 0x0000, 0x0100, CRC(e4f7e018) SHA1(63e718a39537f37286ea183e6469808c271dbfa5) ) // "64 40029-01" 82S129 256x4 horizontal sync - - ROM_REGION( 0x200, "vsync", 0 ) - ROM_LOAD( "abc80_21.k2", 0x0000, 0x0200, CRC(445a45b9) SHA1(bcc1c4fafe68b3500b03de785ca32abd63cea252) ) // "64 40030-01" 82S131 512x4 vertical sync - - ROM_REGION( 0x100, "attr", 0 ) - ROM_LOAD( "abc80_12.j3", 0x0000, 0x0100, CRC(6c46811c) SHA1(2d3bdf2d3a2a88ddb1c0c637967e1b2b9541a928) ) // "64 40056-01" 82S129 256x4 attribute - - ROM_REGION( 0x200, "line", 0 ) - ROM_LOAD( "abc80_22.k1", 0x0000, 0x0200, CRC(74de7a0b) SHA1(96f37b0ca65aa8af4242bad38124f410b7f657fe) ) // "64 40058-01" 82S131 512x4 chargen 74S263 row address - - ROM_REGION( 0x100, "mmu", 0 ) - ROM_LOAD( "abc80_13.e7", 0x0000, 0x0100, CRC(f7738834) SHA1(b02df3e678fb50c9cb75b4a97615222d3b4577a3) ) // "64 40057-01" 82S129 256x4 address decoder -ROM_END - - - -//************************************************************************** -// SYSTEM DRIVERS -//************************************************************************** - -// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 1978, abc80, 0, 0, abc80, 0, abc80_state, empty_init, "Luxor Datorer AB", "ABC 80", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_SOUND ) |