// license:BSD-3-Clause // copyright-holders:Wilbert Pol // comments and BIOS versions:rfka01 /***************************************************************************************************** * * Schneider Rundfunkwerke AG Euro PC and Euro PC II driver * * Manuals and BIOS files: ftp://ftp.cpcszene.de/pub/Computer/Schneider_PC/EuroPC_XT/ * * Euro PC: Computer and floppy drive integrated into the keyboard, 8088, 512K RAM, there was an upgrade card for the ISA slot that took it to 640K, single ISA slot FD360 external 360K 5.25" DS DD floppy, FD720 external 720K 3,5" DS DD floppy, HD-20 external harddisk, internal graphics card is CGA or Hercules, 64KB VRAM * Euro PC II: like Euro PC, socket for 8087, 768K RAM on board, driver on Schneider DOS disk allowed the portion over 640K to be used as extended memory or ramdisk. * Euro XT: conventional desktop, specs like Euro PC II, two ISA slots on a riser card, 102 key seperate keyboard, internal XT-IDE 20MB harddisk, connector for FD360 and FD720 was retained * * Only BIOS versions >2.06 are supported so far because of changes in the memory management, according to https://www.forum64.de/index.php?thread/43066-schneider-euro-pc-i-ii-xt-welche-bios-version-habt-ihr/ * Versions 2.04 and 2.05 only show a single dash on the top left of the screen. * * To get rid of the BIOS error messages when you first start the system, enter the BIOS with Ctrl-Alt-Esc, match the RAM size to your settings in MAME, set the CPU speed to 9.54MHz * and the graphics adapter to Color/Graphics 80, internal graphics off * * To-Do: * An external 20MB harddisk (Schneider HD20) can be added to the PC and PC II. This is a XT IDE drive. The BIOSs contain their own copy of the WD XT IDE BIOS that can be activated from the BIOS setup menu. * (load debug, then g=f000:a000 to enter formatter routine) * * emulate internal graphics, but AGA is not quite the correct choice for the standard graphics adapter (it's a Commodore standard), as the Schneiders are only capable of switching between Hercules and CGA modes. * * The PC 2 and XT have 768K of memory that can be configured from the BIOS setup as 640K, 640K+128K EMS and 512K+256K EMS. The EMS options are not visible in our emulation and loading the EMS driver fails. * See http://forum.classic-computing.de/index.php?page=Thread&threadID=8380 for screenshots. * * use correct AT style keyboard for XT * * make BIOS versions v2.04 and v2.05 work * *****************************************************************************************************/ #include "emu.h" #include "cpu/i86/i86.h" #include "bus/isa/aga.h" #include "machine/genpc.h" #include "machine/nvram.h" #include "machine/pckeybrd.h" #include "machine/ram.h" #include "coreutil.h" class europc_pc_state : public driver_device { public: europc_pc_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_mb(*this, "mb"), m_keyboard(*this, "pc_keyboard"), m_ram(*this, RAM_TAG), m_jim_state(0), m_port61(0) { } void europc(machine_config &config); void europc2(machine_config &config); void euroxt(machine_config &config); void init_europc(); private: required_device m_maincpu; required_device m_mb; required_device m_keyboard; required_device m_ram; DECLARE_WRITE8_MEMBER( europc_pio_w ); DECLARE_READ8_MEMBER( europc_pio_r ); DECLARE_WRITE8_MEMBER ( europc_jim_w ); DECLARE_READ8_MEMBER ( europc_jim_r ); DECLARE_READ8_MEMBER ( europc_jim2_r ); DECLARE_READ8_MEMBER( europc_rtc_r ); DECLARE_WRITE8_MEMBER( europc_rtc_w ); void europc_rtc_set_time(); uint8_t m_jim_data[16]; uint8_t m_jim_state; AGA_MODE m_jim_mode; int m_port61; // bit 0,1 must be 0 for startup; reset? uint8_t m_rtc_data[0x10]; int m_rtc_reg; int m_rtc_state; void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; emu_timer* m_rtc_timer; enum { TIMER_RTC }; static void cfg_builtin_720K(device_t *device); void europc_io(address_map &map); void europc_map(address_map &map); }; /* europc fe107 bios checksum test memory test fe145 irq vector init fe156 fe169 fd774 // test of special europc registers 254 354 fe16c fe817 fe16f fec08 // test of special europc registers 800a rtc time or date error, rtc corrected fef66 0xf fdb3e 0x8..0xc fd7f8 fdb5f fe172 fecc5 // 801a video setup error fd6c9 copyright output fe1b7 fe1be di bits set mean output text!!!, (801a) 0x8000 output 1 rtc error 2 rtc time or date error 4 checksum error in setup 8 rtc status corrected 10 video setup error 20 video ram bad 40 monitor type not recogniced 80 mouse port enabled 100 joystick port enabled fe1e2 fdc0c cpu speed is 4.77 MHz fe1e5 ff9c0 keyboard processor error fe1eb fc617 external lpt1 at 0x3bc fe1ee fe8ee external coms at routines: fc92d output text at bp fdb3e rtc read reg cl fe8ee piep fe95e rtc write reg cl polls until jim 0xa is zero, output cl at jim 0xa write ah hinibble as lownibble into jim 0xa write ah lownibble into jim 0xa fef66 rtc read reg cl polls until jim 0xa is zero, output cl at jim 0xa read low 4 nibble at jim 0xa read low 4 nibble at jim 0xa return first nibble<<4|second nibble in ah ff046 seldom compares ret ffe87 0 -> ds 469: bit 0: b0000 memory available bit 1: b8000 memory available 46a: 00 jim 250 01 jim 350 */ /* 250..253 write only 00 be 00 10 252 write 0 b0000 memory activ 252 write 0x10 b8000 memory activ jim 04: 0:4.77 0x40:7.16 pio 63: 11,19 4.77 51,59 7.16 63 bit 6,7 clock select 254 bit 6,7 clock select 250 bit 0: mouse on bit 1: joystick on 254..257 r/w memory ? JIM asic? ram behaviour */ WRITE8_MEMBER( europc_pc_state::europc_jim_w ) { switch (offset) { case 2: if (!(data & 0x80)) { switch (data) { case 0x1f: case 0x0b: m_jim_mode = AGA_MONO; break; case 0xe: //80 columns? case 0xd: //40 columns? case 0x18: case 0x1a: m_jim_mode = AGA_COLOR; break; default: m_jim_mode = AGA_OFF; break; } } // mode= data&0x10?AGA_COLOR:AGA_MONO; // mode= data&0x10?AGA_COLOR:AGA_OFF; if (data & 0x80) m_jim_state = 0; break; case 4: switch(data & 0xc0) { case 0x00: m_maincpu->set_clock_scale(1.0 / 2); break; case 0x40: m_maincpu->set_clock_scale(3.0 / 4); break; default: m_maincpu->set_clock_scale(1); break; } break; case 0xa: europc_rtc_w(space, 0, data); return; } logerror("jim write %.2x %.2x\n", offset, data); m_jim_data[offset] = data; } READ8_MEMBER( europc_pc_state::europc_jim_r ) { int data = 0; switch(offset) { case 4: case 5: case 6: case 7: data = m_jim_data[offset]; break; case 0: case 1: case 2: case 3: data = 0; break; case 0xa: return europc_rtc_r(space, 0); } return data; } READ8_MEMBER( europc_pc_state::europc_jim2_r ) { switch (m_jim_state) { case 0: m_jim_state++; return 0; case 1: m_jim_state++; return 0x80; case 2: m_jim_state = 0; switch (m_jim_mode) { case AGA_COLOR: return 0x87; // for color; case AGA_MONO: return 0x90; //for mono case AGA_OFF: return 0x80; // for vram // return 0x97; //for error } } return 0; } /* realtime clock and nvram EM M3002 reg 0: seconds reg 1: minutes reg 2: hours reg 3: day 1 based reg 4: month 1 based reg 5: year bcd (no century, values bigger 88? are handled as 1900, else 2000) reg 6: reg 7: reg 8: reg 9: reg a: reg b: 0x10 written bit 0,1: 0 video startup mode: 0=specialadapter, 1=color40, 2=color80, 3=monochrom bit 2: internal video on bit 4: color bit 6,7: clock reg c: bit 0,1: language/country reg d: xor checksum reg e: reg 0f: 01 status ok, when not 01 written */ void europc_pc_state::europc_rtc_set_time() { system_time systime; /* get the current date/time from the core */ machine().current_datetime(systime); m_rtc_data[0] = dec_2_bcd(systime.utc_time.second); m_rtc_data[1] = dec_2_bcd(systime.utc_time.minute); m_rtc_data[2] = dec_2_bcd(systime.utc_time.hour); m_rtc_data[3] = dec_2_bcd(systime.utc_time.mday); m_rtc_data[4] = dec_2_bcd(systime.utc_time.month + 1); m_rtc_data[5] = dec_2_bcd(systime.utc_time.year % 100); } void europc_pc_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) { int month, year; switch(id) { case TIMER_RTC: m_rtc_data[0]=bcd_adjust(m_rtc_data[0]+1); if (m_rtc_data[0]>=0x60) { m_rtc_data[0]=0; m_rtc_data[1]=bcd_adjust(m_rtc_data[1]+1); if (m_rtc_data[1]>=0x60) { m_rtc_data[1]=0; m_rtc_data[2]=bcd_adjust(m_rtc_data[2]+1); if (m_rtc_data[2]>=0x24) { m_rtc_data[2]=0; m_rtc_data[3]=bcd_adjust(m_rtc_data[3]+1); month=bcd_2_dec(m_rtc_data[4]); year=bcd_2_dec(m_rtc_data[5])+2000; // save for julian_days_in_month_calculation if (m_rtc_data[3]> gregorian_days_in_month(month, year)) { m_rtc_data[3]=1; m_rtc_data[4]=bcd_adjust(m_rtc_data[4]+1); if (m_rtc_data[4]>0x12) { m_rtc_data[4]=1; m_rtc_data[5]=bcd_adjust(m_rtc_data[5]+1)&0xff; } } } } } break; } } READ8_MEMBER( europc_pc_state::europc_rtc_r ) { int data=0; switch (m_rtc_state) { case 1: data=(m_rtc_data[m_rtc_reg]&0xf0)>>4; m_rtc_state++; break; case 2: data=m_rtc_data[m_rtc_reg]&0xf; m_rtc_state=0; // logerror("rtc read %x %.2x\n",m_rtc_reg, m_rtc_data[m_rtc_reg]); break; } return data; } WRITE8_MEMBER( europc_pc_state::europc_rtc_w ) { switch (m_rtc_state) { case 0: m_rtc_reg=data; m_rtc_state=1; break; case 1: m_rtc_data[m_rtc_reg]=(m_rtc_data[m_rtc_reg]&~0xf0)|((data&0xf)<<4); m_rtc_state++; break; case 2: m_rtc_data[m_rtc_reg]=(m_rtc_data[m_rtc_reg]&~0xf)|(data&0xf); m_rtc_state=0; // logerror("rtc written %x %.2x\n",m_rtc_reg, m_rtc_data[m_rtc_reg]); break; } } void europc_pc_state::init_europc() { uint8_t *rom = &memregion("bios")->base()[0]; /* fix century rom bios bug ! if year <79 month (and not CENTURY) is loaded with 0x20 */ if (rom[0xf93e]==0xb6){ // mov dh, rom[0xf93e]=0xb5; // mov ch, uint8_t a = 0; int i = 0x8000; for (; i < 0xffff; i++) a += rom[i]; rom[0xffff] = 256 - a; } memset(&m_rtc_data,0,sizeof(m_rtc_data)); m_rtc_reg = 0; m_rtc_state = 0; m_rtc_data[0xf]=1; m_rtc_timer = timer_alloc(); m_rtc_timer->adjust(attotime::zero, 0, attotime(1,0)); // europc_rtc_set_time(); subdevice("nvram")->set_base(m_rtc_data, sizeof(m_rtc_data)); } WRITE8_MEMBER( europc_pc_state::europc_pio_w ) { switch (offset) { case 1: m_port61=data; m_mb->m_pit8253->write_gate2(BIT(data, 0)); m_mb->pc_speaker_set_spkrdata(BIT(data, 1)); m_keyboard->enable(BIT(data, 6)); if(data & 0x80) m_mb->m_pic8259->ir1_w(0); break; } logerror("europc pio write %.2x %.2x\n", offset, data); } READ8_MEMBER( europc_pc_state::europc_pio_r ) { int data = 0; switch (offset) { case 0: data = m_keyboard->read(space, 0); break; case 1: data = m_port61; break; case 2: if (m_mb->pit_out2()) data |= 0x20; break; } return data; } /* layout of an uk europc ESC, [SPACE], F1,F2,F3,F4,[SPACE],F5,F6,F7,F8,[SPACE],F9,F0,F11,F12 [SPACE] \|, 1,2,3,4,5,6,7,8,9,0 -,+, BACKSPACE,[SPACE], NUM LOCK, SCROLL LOCK, PRINT SCREEN, KEYPAD - TAB,Q,W,E,R,T,Y,U,I,O,P,[,], RETURN, [SPACE], KEYPAD 7, KEYPAD 8, KEYPAD 9, KEYPAD + CTRL, A,S,D,F,G,H,J,K,L,;,@,~, RETURN, [SPACE],KEYPAD 4,KEYPAD 5,KEYPAD 6, KEYPAD + LEFT SHIFT, Z,X,C,V,B,N,M,<,>,?,RIGHT SHIFT,[SPACE],KEYPAD 1, KEYPAD 2, KEYPAD 3, KEYPAD ENTER ALT,[SPACE], SPACE BAR,[SPACE],CAPS LOCK,[SPACE], KEYPAD 0, KEYPAD ., KEYPAD ENTER \ and ~ had to be swapped i am not sure if keypad enter delivers the mf2 keycode */ static INPUT_PORTS_START( europc ) PORT_START("DSW0") /* IN1 */ PORT_START("DSW1") /* IN2 */ PORT_DIPNAME( 0x80, 0x80, "COM1: enable") PORT_DIPSETTING( 0x00, DEF_STR( No ) ) PORT_DIPSETTING( 0x80, DEF_STR( Yes ) ) PORT_DIPNAME( 0x40, 0x40, "COM2: enable") PORT_DIPSETTING( 0x00, DEF_STR( No ) ) PORT_DIPSETTING( 0x40, DEF_STR( Yes ) ) PORT_DIPNAME( 0x20, 0x00, "COM3: enable") PORT_DIPSETTING( 0x00, DEF_STR( No ) ) PORT_DIPSETTING( 0x20, DEF_STR( Yes ) ) PORT_DIPNAME( 0x10, 0x00, "COM4: enable") PORT_DIPSETTING( 0x00, DEF_STR( No ) ) PORT_DIPSETTING( 0x10, DEF_STR( Yes ) ) PORT_DIPNAME( 0x08, 0x08, "LPT1: enable") PORT_DIPSETTING( 0x00, DEF_STR( No ) ) PORT_DIPSETTING( 0x08, DEF_STR( Yes ) ) PORT_DIPNAME( 0x04, 0x00, "LPT2: enable") PORT_DIPSETTING( 0x00, DEF_STR( No ) ) PORT_DIPSETTING( 0x04, DEF_STR( Yes ) ) PORT_DIPNAME( 0x02, 0x00, "LPT3: enable") PORT_DIPSETTING( 0x00, DEF_STR( No ) ) PORT_DIPSETTING( 0x02, DEF_STR( Yes ) ) PORT_DIPNAME( 0x01, 0x00, "Game port enable") PORT_DIPSETTING( 0x00, DEF_STR( No ) ) PORT_DIPSETTING( 0x01, DEF_STR( Yes ) ) PORT_START("DSW2") /* IN3 */ PORT_DIPNAME( 0x08, 0x08, "HDC1 (C800:0 port 320-323)") PORT_DIPSETTING( 0x00, DEF_STR( No ) ) PORT_DIPSETTING( 0x08, DEF_STR( Yes ) ) PORT_DIPNAME( 0x04, 0x04, "HDC2 (CA00:0 port 324-327)") PORT_DIPSETTING( 0x00, DEF_STR( No ) ) PORT_DIPSETTING( 0x04, DEF_STR( Yes ) ) PORT_BIT( 0x02, 0x02, IPT_UNUSED ) /* no turbo switch */ PORT_BIT( 0x01, 0x01, IPT_UNUSED ) PORT_INCLUDE(pc_keyboard) PORT_MODIFY("pc_keyboard_2") /* IN6 */ PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("` ~") PORT_CODE(KEYCODE_BACKSLASH) /* ` 29 A9 */ PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("\\ |") PORT_CODE(KEYCODE_TILDE) /* \ 2B AB */ PORT_MODIFY("pc_keyboard_5") /* IN9 */ PORT_BIT ( 0x0070, 0x0000, IPT_UNUSED ) /* 0x40 non us backslash 2 not available */ PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F11") PORT_CODE(KEYCODE_F11) /* F11 57 D7 */ PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F12") PORT_CODE(KEYCODE_F12) /* F12 58 D8 */ PORT_START("pc_keyboard_6") /* IN10 */\ PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("KP Enter") PORT_CODE(KEYCODE_ENTER_PAD) /* PAD Enter 60 e0 */ PORT_BIT(0xfffe, IP_ACTIVE_HIGH, IPT_UNUSED) INPUT_PORTS_END void europc_pc_state::europc_map(address_map &map) { map.unmap_value_high(); map(0xf0000, 0xfffff).rom().region("bios", 0); } void europc_pc_state::europc_io(address_map &map) { map.unmap_value_high(); map(0x0000, 0x00ff).m(m_mb, FUNC(pc_noppi_mb_device::map)); map(0x0060, 0x0063).rw(FUNC(europc_pc_state::europc_pio_r), FUNC(europc_pc_state::europc_pio_w)); map(0x0250, 0x025f).rw(FUNC(europc_pc_state::europc_jim_r), FUNC(europc_pc_state::europc_jim_w)); map(0x02e0, 0x02e0).r(FUNC(europc_pc_state::europc_jim2_r)); } /* single built-in 3.5" 720K drive, connector for optional external 3.5" or 5.25" drive */ void europc_pc_state::cfg_builtin_720K(device_t *device) { dynamic_cast(*device->subdevice("fdc:0")).set_default_option("35dd"); dynamic_cast(*device->subdevice("fdc:0")).set_fixed(true); dynamic_cast(*device->subdevice("fdc:1")).set_default_option(""); } //Euro PC MACHINE_CONFIG_START(europc_pc_state::europc) MCFG_DEVICE_ADD("maincpu", I8088, 4772720*2) MCFG_DEVICE_PROGRAM_MAP(europc_map) MCFG_DEVICE_IO_MAP(europc_io) MCFG_DEVICE_IRQ_ACKNOWLEDGE_DEVICE("mb:pic8259", pic8259_device, inta_cb) MCFG_PCNOPPI_MOTHERBOARD_ADD("mb", "maincpu") MCFG_DEVICE_ADD("isa1", ISA8_SLOT, 0, "mb:isa", pc_isa8_cards, "aga", false) // FIXME: determine ISA bus clock MCFG_DEVICE_ADD("isa2", ISA8_SLOT, 0, "mb:isa", pc_isa8_cards, "lpt", false) MCFG_SLOT_FIXED(true) MCFG_DEVICE_ADD("isa3", ISA8_SLOT, 0, "mb:isa", pc_isa8_cards, "com", false) MCFG_SLOT_FIXED(true) MCFG_DEVICE_ADD("isa4", ISA8_SLOT, 0, "mb:isa", pc_isa8_cards, "fdc_xt", false) MCFG_SLOT_OPTION_MACHINE_CONFIG("fdc_xt", cfg_builtin_720K) MCFG_SLOT_FIXED(true) MCFG_PC_KEYB_ADD("pc_keyboard", WRITELINE("mb:pic8259", pic8259_device, ir1_w)) NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);; /* internal ram */ // Machine came with 512K standard, 640K via expansion card, but BIOS offers 256K as well RAM(config, m_ram).set_default_size("512K").set_extra_options("256K, 640K"); /* software lists */ MCFG_SOFTWARE_LIST_ADD("disk_list", "ibm5150") MACHINE_CONFIG_END //Euro PC II void europc_pc_state::europc2(machine_config &config) { europc(config); // could be configured by the BIOS as 640K, 640K+128K EMS or 512K+256K EMS m_ram->set_default_size("768K"); } //Euro XT MACHINE_CONFIG_START(europc_pc_state::euroxt) europc(config); m_ram->set_default_size("768K"); MCFG_DEVICE_MODIFY("isa2") MCFG_SLOT_DEFAULT_OPTION(nullptr) MCFG_DEVICE_ADD("isa5", ISA8_SLOT, 0, "mb:isa", pc_isa8_cards, "xtide", false) // FIXME: determine ISA bus clock MCFG_SLOT_FIXED(true) MCFG_DEVICE_ADD("isa6", ISA8_SLOT, 0, "mb:isa", pc_isa8_cards, "lpt", false) MCFG_SLOT_FIXED(true) MACHINE_CONFIG_END ROM_START( europc ) ROM_REGION(0x10000,"bios", 0) // hdd bios integrated! ROM_SYSTEM_BIOS( 0, "v2.06", "EuroPC v2.06" ) ROMX_LOAD("bios_v2.06.bin", 0x8000, 0x8000, CRC(0a25a2eb) SHA1(d35f2f483d56b1eff558586e1d33d82f7efed639), ROM_BIOS(0)) ROM_SYSTEM_BIOS( 1, "v2.06b", "EuroPC v2.06b" ) ROMX_LOAD("bios_v2.06b.bin", 0x8000, 0x8000, CRC(05d8a4c2) SHA1(52c6fd22fb739e29a1f0aa3c96ede79cdc659f72), ROM_BIOS(1)) ROM_SYSTEM_BIOS( 2, "v2.07", "EuroPC v2.07" ) ROMX_LOAD("50145", 0x8000, 0x8000, CRC(1775a11d) SHA1(54430d4d0462860860397487c9c109e6f70db8e3), ROM_BIOS(2)) ROM_SYSTEM_BIOS( 3, "v2.08", "EuroPC v2.08" ) ROMX_LOAD("bios_v2.08.bin", 0x8000, 0x8000, CRC(a7048349) SHA1(c2a0af7276c2ff6925abe5a5edef09c5a84106f2), ROM_BIOS(3)) ROM_SYSTEM_BIOS( 4, "v2.08a", "EuroPC v2.08a" ) ROMX_LOAD("bios_v2.08a.bin", 0x8000, 0x8000, CRC(872520b7) SHA1(9c94d33c0d454fab7bcd0c4516b50f1c3c6a30b8), ROM_BIOS(4)) ROM_SYSTEM_BIOS( 5, "v2.08b", "EuroPC v2.08b" ) ROMX_LOAD("bios_v2.08b.bin", 0x8000, 0x8000, CRC(668c0d19) SHA1(69412e58e0ed1d141e633f094af91ec5f7ae064b), ROM_BIOS(5)) ROM_SYSTEM_BIOS( 6, "v2.04", "EuroPC v2.04" ) ROMX_LOAD("bios_v2.04.bin", 0x8000, 0x8000, CRC(e623967c) SHA1(5196b14018da1f3198e2950af0e6eab41425f556), ROM_BIOS(6)) ROM_SYSTEM_BIOS( 7, "v2.05", "EuroPC v2.05" ) ROMX_LOAD("bios_2.05.bin", 0x8000, 0x8000, CRC(372ceed6) SHA1(bb3d3957a22422f98be2225bdc47705bcab96f56), ROM_BIOS(7)) // v2.04 and v2.05 don't work yet, , see comment section ROM_END ROM_START( europc2 ) ROM_REGION(0x10000,"bios", 0) // hdd bios integrated! ROM_LOAD("europcii_bios_v3.01_500145.bin", 0x8000, 0x8000, CRC(ecca89c8) SHA1(802b89babdf0ab0a0a9c21d1234e529c8386d6fb)) ROM_END ROM_START( euroxt ) ROM_REGION(0x10000,"bios", 0) // hdd bios integrated! ROM_LOAD("euroxt_bios_v1.01.bin", 0x8000, 0x8000, CRC(1e1fe931) SHA1(bb7cae224d66ae48045f323ecb9ad59bf49ed0a2)) ROM_END // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1988, europc, ibm5150, 0, europc, europc, europc_pc_state, init_europc, "Schneider Rdf. AG", "EURO PC", MACHINE_NOT_WORKING) COMP( 198?, europc2, ibm5150, 0, europc2, europc, europc_pc_state, init_europc, "Schneider Rdf. AG", "EURO PC II", MACHINE_NOT_WORKING) COMP( 198?, euroxt, ibm5150, 0, euroxt, europc, europc_pc_state, init_europc, "Schneider Rdf. AG", "EURO XT", MACHINE_NOT_WORKING)