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Diffstat (limited to 'src/mame/drivers/pc98ha.cpp')
-rw-r--r-- | src/mame/drivers/pc98ha.cpp | 526 |
1 files changed, 526 insertions, 0 deletions
diff --git a/src/mame/drivers/pc98ha.cpp b/src/mame/drivers/pc98ha.cpp new file mode 100644 index 00000000000..bd4ca0806a5 --- /dev/null +++ b/src/mame/drivers/pc98ha.cpp @@ -0,0 +1,526 @@ +// license:BSD-3-Clause +// copyright-holders:Angelo Salese +/************************************************************************************************** + + PC98LT/HA class machine "Handy98" aka 1st Gen LCD PC98 + + TODO: + - pc98lt: remove timer hack: + - definitely incorrect given the erratic cursor blinking in N88BASIC; + - identify LCDC used here, reg 2 is clearly H display (0x4f+1)*8=640 + - merge from base pc98 class (WIP); + - when idle for some time buzzer farts until a key is pressed (?); + - add NVRAM saving: + - pinpoint NVRAM init switch source: + - first port C read (pc98lt: i/o 0x35, PC=0xf841f) tests for bit 7, + which initializes battery backup if on, but port C is in output mode there. + Somehow obf irq is on at boot if battery failed? + - power handling; + - pc98ha specifics: + - RTC is upd4991a (partially done), it's parallel instead of serial and incompatible with + everything else ugh; + - EMS fails at boot, it's never ever really checked; + - MSDOS cannot detect EMS properly, is there a flag somewhere? + - JEIDA memory card interface; + - optional docking station (for floppy device only or can mount other stuff too?); + +**************************************************************************************************/ + +#include "emu.h" +#include "includes/pc98ha.h" + +void pc98lt_state::lt_palette(palette_device &palette) const +{ + palette.set_pen_color(0, 160, 168, 160); + palette.set_pen_color(1, 48, 56, 16); +} + +uint32_t pc98lt_state::screen_update( screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect ) +{ + for (int y = cliprect.min_y; y <= cliprect.max_y; y++) + for (int x = cliprect.min_x; x <= cliprect.max_x; x += 16) + { + u16 pen = bitswap<16>(m_gvram[(y*640+x)/16], 8, 9, 10, 11, 12, 13, 14, 15, 0, 1, 2, 3, 4, 5, 6, 7); + + for (int xi = 0; xi < 16; xi++) + { + u8 dot = (pen >> xi) & 1; + bitmap.pix(y, x+xi) = m_palette->pen(dot); + } + } + + return 0; +} + +/* + * Power Status Register + * + * x--- ---- docking station connected (HA only?) + * -x-- ---- AC power supply connected + * ---x ---- alarm enabled + * ---- x--- unknown + * ---- -x-- Lithium battery low (HA only?) + * ---- --x- battery low + * ---- ---x power off + */ +u8 pc98lt_state::power_status_r() +{ + return 0x80; +} + +void pc98lt_state::power_control_w(offs_t offset, u8 data) +{ + // TODO: happens pretty often, supposed to halt the system and wake up on arbitrary event? + if (BIT(data, 2)) + logerror("%s: power_control_w standby signal ON\n", machine().describe_context()); + + // pc98lt: go to prompt (type "command" in main menu) and execute "poweroff.com" + if (BIT(data, 0)) + logerror("%s: power_control_w power off signal ON\n", machine().describe_context()); + + // pc98ha bit 1: flips between 0->1 on system boot failure, in tandem with standby mode held + if (data & ~0x07) + logerror("%s: power_control_w unknown signal sent %02x\n", machine().describe_context(), data); +} + +// TODO: intentionally repeated from base pc98 until I understand what's going on here. +// (supposedly should be same from base pc98 minus the V50 integrations and whatever the "docking station" really adds up) +u8 pc98lt_state::floppy_mode_r(offs_t offset) +{ + // floppy "mode" identifies drive capabilities, if 2dd/2hd exclusive or mixed type. + // and to my understanding it doesn't really read from write reg ... + return (m_floppy_mode & 3) | 0x08; +} + +void pc98lt_state::floppy_mode_w(offs_t offset, u8 data) +{ + // bit 1: selects between 2hd and 2dd, not unlike base PC98 + m_floppy_mode = data & 3; + m_fdc->subdevice<floppy_connector>("0")->get_device()->set_rpm(data & 0x02 ? 360 : 300); + m_fdc->subdevice<floppy_connector>("1")->get_device()->set_rpm(data & 0x02 ? 360 : 300); + + m_fdc->set_rate(data & 0x02 ? 500000 : 250000); +} + +u8 pc98lt_state::fdc_ctrl_r(offs_t offset) +{ + // TODO: doesn't work as intended, bit 4 is supposedly if the drive has a disk in or not according to documentation. + int ret = (m_fdc->subdevice<floppy_connector>("0")->get_device()->ready_r()) ? 0x10 : 0; + ret |= (m_fdc->subdevice<floppy_connector>("1")->get_device()->ready_r()) ? 0x10 : 0; + return ret | 0x64; +} + +void pc98lt_state::fdc_ctrl_w(offs_t offset, u8 data) +{ + m_fdc->reset_w(BIT(data, 7)); + + m_fdc_ctrl = data; + if(data & 0x40) + { + m_fdc->set_ready_line_connected(0); + m_fdc->ready_w(0); + } + else + m_fdc->set_ready_line_connected(1); + + m_fdc->subdevice<floppy_connector>("0")->get_device()->mon_w(data & 8 ? ASSERT_LINE : CLEAR_LINE); + m_fdc->subdevice<floppy_connector>("1")->get_device()->mon_w(data & 8 ? ASSERT_LINE : CLEAR_LINE); +} + +void pc98lt_state::lt_map(address_map &map) +{ + map.unmap_value_high(); + map(0x00000, 0x5ffff).ram(); // 384 KB + map(0x60000, 0x9ffff).noprw(); + + // no TVRAM + map(0xa8000, 0xaffff).ram().share("gvram"); +// 0xb0000-0xbffff unmapped GVRAM or mirror, check me + map(0xc0000, 0xcffff).unmaprw(); // EMS area, not present here but checked + map(0xd0000, 0xd3fff).bankrw("bram_bank"); + map(0xd4000, 0xd7fff).bankr("dict_bank"); + map(0xd8000, 0xdbfff).bankr("kanji_bank"); + map(0xe0000, 0xeffff).bankr("romdrv_bank"); + map(0xf0000, 0xfffff).rom().region("ipl", 0); +} + +void pc98lt_state::lt_io(address_map &map) +{ + map.unmap_value_high(); +// map(0x0000, 0x001f) // PIC (bit 3 ON slave / master), V50 internal / <undefined> + map(0x0020, 0x002f).w(FUNC(pc98lt_state::rtc_w)).umask16(0x00ff); + map(0x0030, 0x0037).rw(m_ppi_sys, FUNC(i8255_device::read), FUNC(i8255_device::write)).umask16(0xff00); //i8251 RS232c / i8255 system port + map(0x0040, 0x0047).rw(m_ppi_prn, FUNC(i8255_device::read), FUNC(i8255_device::write)).umask16(0x00ff); + map(0x0040, 0x0047).rw(m_keyb, FUNC(pc9801_kbd_device::rx_r), FUNC(pc9801_kbd_device::tx_w)).umask16(0xff00); //i8255 printer port / i8251 keyboard +// map(0x0070, 0x007f) // PIT, V50 internal + + // floppy actually requires a docking station on PC98HA, density should be 2dd given the mapping + map(0x00be, 0x00be).rw(FUNC(pc98lt_state::floppy_mode_r), FUNC(pc98lt_state::floppy_mode_w)); + map(0x00c8, 0x00cb).m(m_fdc, FUNC(upd765a_device::map)).umask16(0x00ff); + map(0x00cc, 0x00cc).rw(FUNC(pc98lt_state::fdc_ctrl_r), FUNC(pc98lt_state::fdc_ctrl_w)); + +// map(0x00e0, 0x00ef) // uPD71071, V50 internal + +// map(0x0810, 0x0810) // <unknown device data>, LCDC? +// map(0x0812, 0x0812) // <unknown device address> & 0xf + + map(0x0c10, 0x0c10).lrw8( + NAME([this] () { return (m_bram_bank_reg & (m_bram_banks - 1)) | 0x40; }), + NAME([this] (u8 data) { m_bram_bank_reg = data & (m_bram_banks - 1); m_bram_bank->set_entry(m_bram_bank_reg); }) + ); +// map(0x0f8e, 0x0f8e) // card slot status 1 (undefined on pc98lt?) +// map(0x4810, 0x4810) // ? + map(0x4c10, 0x4c10).lrw8( + NAME([this] () { return (m_dict_bank_reg & 0x3f) | 0x40; }), + NAME([this] (u8 data) { m_dict_bank_reg = data & 0x3f; m_dict_bank->set_entry(m_dict_bank_reg); }) + ); +// map(0x5e8e, 0x5e8e) // card slot status 2 +// map(0x6e8e, 0x6e8e) // modem control 1 +// map(0x7e8e, 0x7e8e) // modem control 2 + map(0x8810, 0x8810).rw(FUNC(pc98lt_state::power_status_r), FUNC(pc98lt_state::power_control_w)); + map(0x8c10, 0x8c10).lw8(NAME([this] (u8 data) { m_kanji_bank->set_entry(data & 0x0f); })); +// map(0xc810, 0xc810) // ? + map(0xcc10, 0xcc10).lrw8( + NAME([this] () { return (m_romdrv_bank_reg & 0xf) | 0x40; }), + NAME([this] (u8 data) { m_romdrv_bank_reg = data & 0xf; m_romdrv_bank->set_entry(m_romdrv_bank_reg); }) + ); +} + +/************************************ + * + * 98HA specifics + * + ***********************************/ + +void pc98ha_state::ext_view_bank_w(offs_t offset, u8 data) +{ + if (m_ext_view_sel == 0x81) + m_ramdrv_bank->set_entry(data & 0x7f); + else + logerror("External view SEL bank set %02x (view=%02x)\n", data, m_ext_view_sel); +} + +void pc98ha_state::ext_view_sel_w(offs_t offset, u8 data) +{ + m_ext_view_sel = data; + // either bit 7 ON or writing 0x80 to this port disables the external view. + if (data & 0x80) + m_ext_view.select(data & 0x3); + if (data != 0x81) + logerror("External view SEL line set %02x\n", data); +} + +void pc98ha_state::ems_bank_w(offs_t offset, u8 data) +{ + m_ems_banks[offset]->set_entry(data & 0x7f); +} + +u8 pc98ha_state::memcard_status_1_r(offs_t offset) +{ + // TODO: identify exact type + // 0x0e: memory card present + // bit 3 is checked at boot, PC=f82a5 + // mask 0xf0 is checked at PC=f8956 then periodically polled at PC=0xfd110 + // NeoGeo uses v3 + return 0x04; +} + +u8 pc98ha_state::memcard_status_2_r(offs_t offset) +{ + // 0x46: memory card present + return 0x40; +} + +void pc98ha_state::ha_map(address_map &map) +{ + lt_map(map); + map(0x00000, 0x9ffff).ram(); // 640 KB + + map(0xc0000, 0xc3fff).bankrw("ems_bank1"); + map(0xc4000, 0xc7fff).bankrw("ems_bank2"); + map(0xc8000, 0xcbfff).bankrw("ems_bank3"); + map(0xcc000, 0xcffff).bankrw("ems_bank4"); + map(0xdc000, 0xdffff).view(m_ext_view); + m_ext_view[0](0xdc000, 0xdffff).unmaprw(); // unknown, accessed on MSDOS boot + m_ext_view[1](0xdc000, 0xdffff).bankrw("ramdrv_bank"); + m_ext_view[2](0xdc000, 0xdffff).unmaprw(); // JEIDA memory card + m_ext_view[3](0xdc000, 0xdffff).unmaprw(); +} + +void pc98ha_state::ha_io(address_map &map) +{ + lt_io(map); + map(0x0020, 0x002f).unmaprw(); + map(0x0022, 0x0022).w(m_rtc_pio, FUNC(upd4991a_device::address_w)); + map(0x0023, 0x0023).rw(m_rtc_pio, FUNC(upd4991a_device::data_r), FUNC(upd4991a_device::data_w)); + map(0x08e0, 0x08e7).w(FUNC(pc98ha_state::ems_bank_w)).umask16(0xff00); + map(0x0e8e, 0x0e8e).w(FUNC(pc98ha_state::ext_view_bank_w)); + map(0x0f8e, 0x0f8e).r(FUNC(pc98ha_state::memcard_status_1_r)); + map(0x1e8e, 0x1e8e).w(FUNC(pc98ha_state::ext_view_sel_w)); + map(0x5f8e, 0x5f8e).r(FUNC(pc98ha_state::memcard_status_2_r)); +} + +static INPUT_PORTS_START( pc98lt ) + PORT_START("SYSB") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_READ_LINE_DEVICE_MEMBER(RTC_TAG, upd1990a_device, data_out_r) + PORT_DIPNAME( 0x02, 0x00, "SYSB" ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x02, DEF_STR( On ) ) + PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x04, DEF_STR( On ) ) + PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x08, DEF_STR( On ) ) + PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x10, DEF_STR( On ) ) + PORT_DIPNAME( 0x20, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x20, DEF_STR( On ) ) + PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x40, DEF_STR( On ) ) + PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x80, DEF_STR( On ) ) + + PORT_START("SYSC") + PORT_DIPNAME( 0x01, 0x00, "SYSC" ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x01, DEF_STR( On ) ) + PORT_DIPNAME( 0x02, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x02, DEF_STR( On ) ) + PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x04, DEF_STR( On ) ) + PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x08, DEF_STR( On ) ) + PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x10, DEF_STR( On ) ) + PORT_DIPNAME( 0x20, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x20, DEF_STR( On ) ) + PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x40, DEF_STR( On ) ) + PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x80, DEF_STR( On ) ) + + PORT_START("PRNB") + PORT_DIPNAME( 0x01, 0x00, "PRNB" ) // checked on boot + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x01, DEF_STR( On ) ) + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNKNOWN ) // CPUT LT/HA switch + PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unknown ) ) // checked on boot + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x04, DEF_STR( On ) ) + PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x08, DEF_STR( On ) ) + PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x10, DEF_STR( On ) ) + PORT_DIPNAME( 0x20, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x20, DEF_STR( On ) ) + PORT_BIT( 0xc0, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_CUSTOM_MEMBER(pc98lt_state, system_type_r) +INPUT_PORTS_END + +static INPUT_PORTS_START( pc98ha ) + PORT_INCLUDE( pc98lt ) + + PORT_MODIFY("SYSB") + PORT_DIPNAME( 0x01, 0x00, "<rtc empty signal>" ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x01, DEF_STR( On ) ) + + PORT_MODIFY("PRNB") + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN ) +INPUT_PORTS_END + +// debug +static const gfx_layout gfx_16x16x1 = +{ + 16,16, + RGN_FRAC(1,1), + 1, + { 0 }, + { STEP16(0,1) }, + { STEP16(0,16) }, + 16*16 +}; + +static GFXDECODE_START( gfx_pc98lt ) + GFXDECODE_ENTRY( "kanji", 0x00000, gfx_8x8x1, 0x000, 0x01 ) + GFXDECODE_ENTRY( "kanji", 0x00000, gfx_16x16x1, 0x000, 0x01 ) +GFXDECODE_END + +void pc98lt_state::machine_start() +{ + // TODO: make this and NVRAM saving to co-exist + // we have a 16-bit host bus with a banked NVRAM window that also has different sizes depending on the model, + // may consider to encapsulate instead. + const u32 bram_size = memregion("backup")->bytes() / 2; + uint16_t *bram = (uint16_t *)memregion("backup")->base(); + m_bram_banks = (bram_size * 2) / 0x4000; + m_bram_ptr = make_unique_clear<uint16_t[]>(bram_size); + + for (int i = 0; i < bram_size; i++) + m_bram_ptr[i] = bram[i]; + + m_kanji_bank->configure_entries( 0, 0x10, memregion("kanji")->base(), 0x4000); + m_bram_bank->configure_entries( 0, m_bram_banks, m_bram_ptr.get(), 0x4000); + m_romdrv_bank->configure_entries( 0, 0x10, memregion("romdrv")->base(), 0x10000); + m_dict_bank->configure_entries( 0, 0x40, memregion("dict")->base(), 0x4000); + + if (m_rtc != nullptr) + { + m_rtc->cs_w(1); + m_rtc->oe_w(1); + } + m_sys_type = 0xc0 >> 6; + + save_item(NAME(m_bram_bank_reg)); + save_item(NAME(m_romdrv_bank_reg)); + save_item(NAME(m_dict_bank_reg)); + save_pointer(NAME(m_bram_ptr), bram_size); +} + +void pc98ha_state::machine_start() +{ + pc98lt_state::machine_start(); + const u32 ems_banks = 0x80; + const u32 ems_size = (ems_banks * 0x4000) / 2; + + m_ramdrv_bank->configure_entries(0, 0x80, memregion("ramdrv")->base(), 0x4000); + + m_ems_ram = make_unique_clear<uint16_t[]>(ems_size); + for (int i = 0; i < 4; i++) + m_ems_banks[i]->configure_entries(0, ems_banks, m_ems_ram.get(), 0x4000); + + save_item(NAME(m_ext_view_sel)); + save_pointer(NAME(m_ems_ram), ems_size); +} + +static void pc9801_floppies(device_slot_interface &device) +{ +// device.option_add("525dd", FLOPPY_525_DD); + device.option_add("525hd", FLOPPY_525_HD); +// device.option_add("35hd", FLOPPY_35_HD); +} + +void pc98lt_state::lt_config(machine_config &config) +{ + const XTAL xtal = XTAL(8'000'000); + V50(config, m_maincpu, xtal); // µPD70216 + m_maincpu->set_addrmap(AS_PROGRAM, &pc98lt_state::lt_map); + m_maincpu->set_addrmap(AS_IO, &pc98lt_state::lt_io); + // TODO: jumps off the weeds if divided by / 4 after timer check, DMA issue? +// m_maincpu->set_tclk(xtal / 4); + m_maincpu->set_tclk(xtal / 100); +// m_maincpu->tout2_cb().set_inputline(m_maincpu, INPUT_LINE_IRQ2); +// m_pit->out_handler<0>().set(m_pic1, FUNC(pic8259_device::ir0_w)); +// m_pit->out_handler<2>().set(m_sio, FUNC(i8251_device::write_txc)); +// m_pit->out_handler<2>().append(m_sio, FUNC(i8251_device::write_rxc)); + +// m_maincpu->set_irq_acknowledge_callback("pic8259_master", FUNC(pic8259_device::inta_cb)); + + PC9801_KBD(config, m_keyb, 53); + m_keyb->irq_wr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ1); + + I8255(config, m_ppi_sys, 0); + // PC98LT/HA has no dips, port A acts as a RAM storage + m_ppi_sys->in_pa_callback().set(m_ppi_sys, FUNC(i8255_device::pa_r)); + m_ppi_sys->in_pb_callback().set_ioport("SYSB"); +// m_ppi_sys->in_pc_callback().set_constant(0xa0); // 0x80 cpu triple fault reset flag? + m_ppi_sys->out_pc_callback().set(FUNC(pc98lt_state::ppi_sys_beep_portc_w)); + + I8255(config, m_ppi_prn, 0); + m_ppi_prn->in_pb_callback().set_ioport("PRNB"); + + UPD1990A(config, m_rtc); + + UPD765A(config, m_fdc, 8'000'000, false, true); + m_fdc->intrq_wr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ6); + m_fdc->drq_wr_callback().set(m_maincpu, FUNC(v50_device::dreq_w<2>)).invert(); +// m_fdc->drq_wr_callback().set(m_maincpu, FUNC(v50_device::dreq_w<3>)).invert(); // 2dd + FLOPPY_CONNECTOR(config, "upd765:0", pc9801_floppies, "525hd", pc9801_state::floppy_formats); + FLOPPY_CONNECTOR(config, "upd765:1", pc9801_floppies, "525hd", pc9801_state::floppy_formats); + + SCREEN(config, m_screen, SCREEN_TYPE_LCD); + // TODO: copied verbatim from base PC98, verify clock et al. + m_screen->set_raw(21.0526_MHz_XTAL, 848, 0, 640, 440, 0, 400); + m_screen->set_screen_update(FUNC(pc98lt_state::screen_update)); +// m_screen->screen_vblank().set(FUNC(pc9801_state::vrtc_irq)); + + PALETTE(config, m_palette, FUNC(pc98lt_state::lt_palette), 2); + + GFXDECODE(config, m_gfxdecode, m_palette, gfx_pc98lt); + + SPEAKER(config, "mono").front_center(); + BEEP(config, m_beeper, 2400).add_route(ALL_OUTPUTS, "mono", 0.05); +} + +void pc98ha_state::ha_config(machine_config &config) +{ + lt_config(config); + const XTAL xtal = XTAL(10'000'000); + V50(config.replace(), m_maincpu, xtal); + m_maincpu->set_addrmap(AS_PROGRAM, &pc98ha_state::ha_map); + m_maincpu->set_addrmap(AS_IO, &pc98ha_state::ha_io); + m_maincpu->set_tclk(xtal / 4); +// m_maincpu->set_irq_acknowledge_callback("pic8259_master", FUNC(pic8259_device::inta_cb)); + + config.device_remove("rtc"); + UPD4991A(config, m_rtc_pio, 32'768); +} + +// all ROMs in both sets needs at least chip renaming, and I haven't seen a single PCB pic from the net. +// dict.rom and ramdrv.bin definitely won't fit an even ROM size regardless, +// also backup.bin may not be factory default. + +ROM_START( pc98lt ) + ROM_REGION16_LE( 0x10000, "ipl", ROMREGION_ERASEFF ) + ROM_LOAD( "ipl.rom", 0x000000, 0x010000, BAD_DUMP CRC(b6a6a382) SHA1(3f1767cccc1ae02b3e48f6ee327d3ef4fad05750) ) + + ROM_REGION( 0x40000, "kanji", ROMREGION_ERASEFF ) + ROM_LOAD( "kanji.rom", 0x000000, 0x040000, BAD_DUMP CRC(26a81aa2) SHA1(bf12e40c608ef6ef1ac38f6b0b3ca79260a50cef) ) + + ROM_REGION16_LE( 0x10000, "backup", ROMREGION_ERASEFF ) + ROM_LOAD( "backup.bin", 0x000000, 0x010000, BAD_DUMP CRC(56d7ca00) SHA1(d17942e166f98af1d484e497e97d31da515973f7) ) + + ROM_REGION( 0x100000, "dict", ROMREGION_ERASEFF ) + ROM_LOAD( "dict.rom", 0x000000, 0x080000, BAD_DUMP CRC(421278ee) SHA1(f6066fc5085de521395ce1a8bb040536c1454c7e) ) + + ROM_REGION( 0x100000, "romdrv", ROMREGION_ERASEFF ) + ROM_LOAD( "romdrv.rom", 0x000000, 0x080000, BAD_DUMP CRC(282ff6eb) SHA1(f4833e49dd9089ec40f5e86a713e08cd8c598578) ) +ROM_END + +ROM_START( pc98ha ) + ROM_REGION16_LE( 0x10000, "ipl", ROMREGION_ERASEFF ) + ROM_LOAD( "ipl.rom", 0x000000, 0x010000, BAD_DUMP CRC(2f552bb9) SHA1(7f53bf95181d65b2f9942285da669d92c61247a3) ) + + ROM_REGION( 0x40000, "kanji", ROMREGION_ERASEFF ) + ROM_LOAD( "kanji.rom", 0x000000, 0x040000, BAD_DUMP CRC(4be5ff2f) SHA1(261d28419a2ddebe3177a282952806d7bb036b40) ) + + ROM_REGION16_LE( 0x40000, "backup", ROMREGION_ERASEFF ) + ROM_LOAD( "backup.bin", 0x000000, 0x040000, BAD_DUMP CRC(3c5b2a99) SHA1(f8e2f5a4c7601d4e81d5e9c83621107ed3f5a29a) ) + + ROM_REGION( 0x100000, "dict", ROMREGION_ERASEFF ) + ROM_LOAD( "dict.rom", 0x000000, 0x0c0000, BAD_DUMP CRC(6dc8493c) SHA1(3e04cdc3403a814969b6590cd78e239e72677fe5) ) + + ROM_REGION( 0x100000, "romdrv", ROMREGION_ERASEFF ) + ROM_LOAD( "romdrv.rom", 0x000000, 0x100000, BAD_DUMP CRC(2f59127f) SHA1(932cb970c2b22408f7895dbf9df6dbc47f8e055b) ) + + // $00 filled with odd size + ROM_REGION( 0x200000, "ramdrv", ROMREGION_ERASEFF ) + ROM_LOAD( "ramdrv.bin", 0x000000, 0x160000, BAD_DUMP CRC(f2cec994) SHA1(c986ad6d8f810ac0a9657c1af26b6fec712d56ed) ) +ROM_END + +COMP( 1989, pc98lt, 0, 0, lt_config, pc98lt, pc98lt_state, empty_init, "NEC", "PC-98LT", MACHINE_NOT_WORKING ) +COMP( 1990, pc98ha, 0, 0, ha_config, pc98ha, pc98ha_state, empty_init, "NEC", "PC-98HA (Handy98)", MACHINE_NOT_WORKING ) |