// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic, Robbbert, Sergey Svishchev /*************************************************************************** Robotron PC-1715 10/06/2008 Preliminary driver. Notes: - keyboard connected to sio channel a - sio channel a clock output connected to ctc trigger 0 - memory map not 100% clear - rt1715w: SCP3 boot loops while executing PROFILE.SUB Docs: - http://www.robotrontechnik.de/html/computer/pc1715w.htm - https://www.tiffe.de/Robotron/PC1715/ -- scanned PDFs https://www.tiffe.de/Robotron/PC1715/MANUAL_PC_1715.pdf - http://www.sax.de/~zander/pc1715/pc_bw.html -- typeset PDFs http://www.sax.de/~zander/pc1715/doku/pc_manu.pdf - http://xepb.org/robotron/ ****************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "imagedev/floppy.h" #include "machine/bankdev.h" #include "machine/ram.h" #include "machine/upd765.h" #include "machine/z80ctc.h" #include "machine/z80sio.h" #include "machine/z80dma.h" #include "machine/z80pio.h" #include "video/i8275.h" #include "emupal.h" #include "screen.h" class rt1715_state : public driver_device { public: rt1715_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_bankdev(*this, "bankdev%u", 0U) , m_sio0(*this, "sio0") , m_ctc0(*this, "ctc0") , m_fdc(*this, "i8272") , m_floppy(*this, "i8272:%u", 0U) , m_dma(*this, "z80dma") , m_ctc2(*this, "ctc2") , m_screen(*this, "screen") , m_palette(*this, "palette") , m_crtc(*this, "i8275") , m_p_chargen(*this, "gfx") , m_p_videoram(*this, "videoram") { } void rt1715(machine_config &config); void rt1715w(machine_config &config); private: DECLARE_READ8_MEMBER(memory_read_byte); DECLARE_WRITE8_MEMBER(memory_write_byte); DECLARE_READ8_MEMBER(io_read_byte); DECLARE_WRITE8_MEMBER(io_write_byte); DECLARE_WRITE_LINE_MEMBER(busreq_w); DECLARE_WRITE_LINE_MEMBER(tc_w); DECLARE_WRITE8_MEMBER(rt1715_floppy_enable); DECLARE_READ8_MEMBER(k7658_led1_r); DECLARE_READ8_MEMBER(k7658_led2_r); DECLARE_READ8_MEMBER(k7658_data_r); DECLARE_WRITE8_MEMBER(k7658_data_w); DECLARE_WRITE8_MEMBER(rt1715_rom_disable); DECLARE_WRITE8_MEMBER(rt1715w_set_bank); DECLARE_WRITE8_MEMBER(rt1715w_floppy_motor); DECLARE_WRITE8_MEMBER(rt1715w_krfd_w); void rt1715_palette(palette_device &palette) const; I8275_DRAW_CHARACTER_MEMBER(crtc_display_pixels); DECLARE_WRITE_LINE_MEMBER(crtc_drq_w); void k7658_io(address_map &map); void k7658_mem(address_map &map); void rt1715_base_io(address_map &map); void rt1715_io(address_map &map); void rt1715w_io(address_map &map); void rt1715_mem(address_map &map); void rt1715w_mem(address_map &map); void rt1715w_m1(address_map &map); void rt1715w_banked_mem(address_map &map); DECLARE_MACHINE_START(rt1715); DECLARE_MACHINE_RESET(rt1715); DECLARE_MACHINE_START(rt1715w); DECLARE_MACHINE_RESET(rt1715w); required_device m_maincpu; required_device m_ram; optional_device_array m_bankdev; required_device m_sio0; required_device m_ctc0; optional_device m_fdc; optional_device_array m_floppy; optional_device m_dma; optional_device m_ctc2; required_device m_screen; required_device m_palette; required_device m_crtc; required_region_ptr m_p_chargen; optional_shared_ptr m_p_videoram; int m_led1_val; int m_led2_val; u8 m_krfd; uint16_t m_dma_adr; int m_r, m_w; }; /*************************************************************************** FLOPPY ***************************************************************************/ WRITE8_MEMBER(rt1715_state::rt1715_floppy_enable) { logerror("%s: rt1715_floppy_enable %02x\n", machine().describe_context(), data); } WRITE8_MEMBER(rt1715_state::rt1715w_floppy_motor) { logerror("%s: rt1715w_floppy_motor %02x\n", machine().describe_context(), data); if (m_floppy[0]->get_device()) m_floppy[0]->get_device()->mon_w(data & 0x80 ? 1 : 0); if (m_floppy[1]->get_device()) m_floppy[1]->get_device()->mon_w(data & 0x08 ? 1 : 0); } WRITE8_MEMBER(rt1715_state::rt1715w_krfd_w) { logerror("%s: rt1715w_krfd_w %02x\n", machine().describe_context(), data); m_krfd = data; } WRITE_LINE_MEMBER(rt1715_state::tc_w) { m_fdc->tc_w(state & BIT(m_krfd, 7)); } /*************************************************************************** KEYBOARD ***************************************************************************/ /* si/so led */ READ8_MEMBER(rt1715_state::k7658_led1_r) { m_led1_val ^= 1; logerror("%s: k7658_led1_r %02x\n", machine().describe_context(), m_led1_val); return 0xff; } /* caps led */ READ8_MEMBER(rt1715_state::k7658_led2_r) { m_led2_val ^= 1; logerror("%s: k7658_led2_r %02x\n", machine().describe_context(), m_led2_val); return 0xff; } /* read key state */ READ8_MEMBER(rt1715_state::k7658_data_r) { uint8_t result = 0xff; if (BIT(offset, 0)) result &= ioport("row_00")->read(); if (BIT(offset, 1)) result &= ioport("row_10")->read(); if (BIT(offset, 2)) result &= ioport("row_20")->read(); if (BIT(offset, 3)) result &= ioport("row_30")->read(); if (BIT(offset, 4)) result &= ioport("row_40")->read(); if (BIT(offset, 5)) result &= ioport("row_50")->read(); if (BIT(offset, 6)) result &= ioport("row_60")->read(); if (BIT(offset, 7)) result &= ioport("row_70")->read(); if (BIT(offset, 8)) result &= ioport("row_08")->read(); if (BIT(offset, 9)) result &= ioport("row_18")->read(); if (BIT(offset, 10)) result &= ioport("row_28")->read(); if (BIT(offset, 11)) result &= ioport("row_38")->read(); if (BIT(offset, 12)) result &= ioport("row_48")->read(); return result; } /* serial output on D0 */ WRITE8_MEMBER(rt1715_state::k7658_data_w) { logerror("%s: k7658_data_w %02x\n", machine().describe_context(), BIT(data, 0)); } /*************************************************************************** MEMORY HANDLING ***************************************************************************/ MACHINE_START_MEMBER(rt1715_state, rt1715) { membank("bank2")->set_base(m_ram->pointer() + 0x0800); membank("bank3")->set_base(m_ram->pointer()); } MACHINE_RESET_MEMBER(rt1715_state, rt1715) { /* on reset, enable ROM */ membank("bank1")->set_base(memregion("ipl")->base()); } WRITE8_MEMBER(rt1715_state::rt1715_rom_disable) { logerror("%s: rt1715_set_bank %02x\n", machine().describe_context(), data); /* disable ROM, enable RAM */ membank("bank1")->set_base(m_ram->pointer()); } MACHINE_START_MEMBER(rt1715_state, rt1715w) { membank("bank2")->set_base(m_ram->pointer() + 0x4000); membank("bank3")->set_base(m_ram->pointer()); } MACHINE_RESET_MEMBER(rt1715_state, rt1715w) { m_dma->rdy_w(1); m_krfd = 0; m_dma_adr = 0; m_r = 0; m_w = 0; m_bankdev[0]->set_bank(m_r); m_bankdev[1]->set_bank(m_w); m_bankdev[2]->set_bank(m_r); } /* b2..0 = AB18..16 0 - Hintergrundbank (Bildschirm, Zeichengeneratoren) 1 - Systembank (gebanktes BIOS, BDOS) 2 - Anwenderbank (TPA) 3 - RAM-Disk 4 - RAM-Disk 5 - RAM-Disk */ WRITE8_MEMBER(rt1715_state::rt1715w_set_bank) { int r = data >> 4; int w = data & 15; logerror("%s: rt1715w_set_bank target %x source %x%s\n", machine().describe_context(), w, r, r == w ? "" : " DIFF"); m_bankdev[0]->set_bank(r); m_bankdev[1]->set_bank(w); if (r < 2) m_bankdev[2]->set_bank(r); m_r = r; m_w = w; } READ8_MEMBER(rt1715_state::memory_read_byte) { uint8_t data = 0; switch (m_r) { case 0: data = m_maincpu->space(AS_PROGRAM).read_byte(offset); break; case 1: data = m_ram->pointer()[offset]; break; case 2: case 3: case 4: case 5: data = m_ram->pointer()[offset + (m_r - 2) * 0x10000]; break; } return data; } WRITE8_MEMBER(rt1715_state::memory_write_byte) { switch (m_w) { case 0: m_maincpu->space(AS_PROGRAM).write_byte(offset, data); break; case 1: m_ram->pointer()[offset] = data; break; case 2: case 3: case 4: case 5: m_ram->pointer()[offset + (m_w - 2) * 0x10000] = data; break; } } READ8_MEMBER(rt1715_state::io_read_byte) { address_space &prog_space = m_maincpu->space(AS_IO); return prog_space.read_byte(offset); } WRITE8_MEMBER(rt1715_state::io_write_byte) { address_space &prog_space = m_maincpu->space(AS_IO); prog_space.write_byte(offset, data); } WRITE_LINE_MEMBER(rt1715_state::busreq_w) { // since our Z80 has no support for BUSACK, we assume it is granted immediately m_maincpu->set_input_line(INPUT_LINE_HALT, state); m_dma->bai_w(state); // tell dma that bus has been granted } /*************************************************************************** VIDEO EMULATION ***************************************************************************/ WRITE_LINE_MEMBER(rt1715_state::crtc_drq_w) { if (state) { m_crtc->dack_w(m_p_videoram[m_dma_adr++]); m_dma_adr %= (80 * 24); } } I8275_DRAW_CHARACTER_MEMBER(rt1715_state::crtc_display_pixels) { const rgb_t *palette = m_palette->palette()->entry_list_raw(); u8 gfx = (lten) ? 0xff : 0; if (!vsp) gfx = m_p_chargen[linecount << 7 | charcode]; if (rvv) gfx ^= 0xff; for (u8 i=0; i<8; i++) bitmap.pix32(y, x + i) = palette[BIT(gfx, 7-i) ? (hlgt ? 2 : 1) : 0]; } /* F4 Character Displayer */ static const gfx_layout rt1715_charlayout = { 8, 16, /* 8 x 16 characters */ 128, /* 128 characters */ 1, /* 1 bits per pixel */ { 0 }, /* no bitplanes */ /* x offsets */ { 0, 1, 2, 3, 4, 5, 6, 7 }, /* y offsets */ { 0*128, 1*128*8, 2*128*8, 3*128*8, 4*128*8, 5*128*8, 6*128*8, 7*128*8, 8*128*8, 9*128*8, 10*128*8, 11*128*8, 12*128*8, 13*128*8, 14*128*8, 15*128*8 }, 8 /* every char takes 1 x 16 bytes */ }; static GFXDECODE_START( gfx_rt1715 ) GFXDECODE_ENTRY("gfx", 0x0000, rt1715_charlayout, 0, 1) GFXDECODE_ENTRY("gfx", 0x0800, rt1715_charlayout, 0, 1) GFXDECODE_END /*************************************************************************** PALETTE ***************************************************************************/ void rt1715_state::rt1715_palette(palette_device &palette) const { palette.set_pen_color(0, rgb_t(0x00, 0x00, 0x00)); // black palette.set_pen_color(1, rgb_t(0x00, 0x7f, 0x00)); // low intensity palette.set_pen_color(2, rgb_t(0x00, 0xff, 0x00)); // high intensity } /*************************************************************************** ADDRESS MAPS ***************************************************************************/ void rt1715_state::rt1715_mem(address_map &map) { map(0x0000, 0x07ff).bankr("bank1").bankw("bank3"); map(0x0800, 0xffff).bankrw("bank2"); } void rt1715_state::rt1715_base_io(address_map &map) { map.unmap_value_high(); map.global_mask(0xff); map(0x08, 0x0b).rw(m_ctc0, FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); map(0x0c, 0x0f).rw(m_sio0, FUNC(z80sio_device::ba_cd_r), FUNC(z80sio_device::ba_cd_w)); // map(0x10, 0x13).rw(m_ctc1, FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); // map(0x14, 0x17).rw(m_sio1, FUNC(z80sio_device::ba_cd_r), FUNC(z80sio_device::ba_cd_w)); map(0x18, 0x19).rw(m_crtc, FUNC(i8275_device::read), FUNC(i8275_device::write)); // map(0x2c, 0x2f) // LT107CS -- serial DSR? // map(0x30, 0x33) // LT111CS -- serial SEL? (data rate selector) } void rt1715_state::rt1715_io(address_map &map) { rt1715_base_io(map); map(0x00, 0x03).rw("a71", FUNC(z80pio_device::read_alt), FUNC(z80pio_device::write_alt)); // floppy data map(0x04, 0x07).rw("a72", FUNC(z80pio_device::read_alt), FUNC(z80pio_device::write_alt)); // floppy control/status map(0x20, 0x20).w(FUNC(rt1715_state::rt1715_floppy_enable)); // map(0x24, 0x27).w(FUNC(rt1715_state::rt1715_rom_enable)); // MEMCS0 map(0x28, 0x2b).w(FUNC(rt1715_state::rt1715_rom_disable)); // MEMCS1 // map(0x34, 0x37) // BWSCS (read: memory start address, write: switch chargen) } void rt1715_state::rt1715w_mem(address_map &map) { map(0x0000, 0xffff).r(m_bankdev[0], FUNC(address_map_bank_device::read8)).w(m_bankdev[1], FUNC(address_map_bank_device::write8)); } void rt1715_state::rt1715w_m1(address_map &map) { map(0x0000, 0xffff).r(m_bankdev[2], FUNC(address_map_bank_device::read8)).w(m_bankdev[2], FUNC(address_map_bank_device::write8)); } void rt1715_state::rt1715w_banked_mem(address_map &map) { // map 0 map(0x00000, 0x007ff).rom().region("ipl", 0); map(0x02000, 0x02fff).ram().region("gfx", 0); map(0x03000, 0x03fff).ram().share("videoram"); map(0x04000, 0x0ffff).bankrw("bank2"); // maps 1-5 map(0x10000, 0x1ffff).bankrw("bank3"); map(0x20000, 0x5ffff).bankrw("bank3"); } // rt1715w -- decoders A13, A14, page C void rt1715_state::rt1715w_io(address_map &map) { rt1715_base_io(map); map(0x00, 0x00).rw(m_dma, FUNC(z80dma_device::bus_r), FUNC(z80dma_device::bus_w)); // A2 map(0x04, 0x07).rw(m_ctc2, FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); // A4 // map(0x1a, 0x1b) // chargen write protection map(0x1c, 0x1d).m(m_fdc, FUNC(i8272a_device::map)); map(0x20, 0x23).w(FUNC(rt1715_state::rt1715w_krfd_w)); // KRFD -- FD-Steuerregister (A45) map(0x24, 0x27).w(FUNC(rt1715_state::rt1715w_set_bank)); // BR (A62, A63) map(0x28, 0x2b).w(FUNC(rt1715_state::rt1715w_floppy_motor)); // MOS map(0x34, 0x37).portr("S8"); // KON -- Konfigurations-schalter FD (config switch -- A114, DIP S8) // map(0x38, 0x3b) // SR (RST1) -- Ru:cksetzen von Flip-Flops im FD // map(0x3c, 0x3f) // RST (RST2) -- Ru:cksetzen von Flip-Flops in V.24 (Pru:ftechnik) // used via DMA only map(0x40, 0x40).r(m_fdc, FUNC(i8272a_device::msr_r)); map(0x41, 0x41).rw(m_fdc, FUNC(i8272a_device::dma_r), FUNC(i8272a_device::dma_w)); } void rt1715_state::k7658_mem(address_map &map) { map(0x0000, 0xffff).w(FUNC(rt1715_state::k7658_data_w)); map(0x0000, 0x07ff).mirror(0xf800).rom(); } void rt1715_state::k7658_io(address_map &map) { map(0x2000, 0x2000).mirror(0x8000).r(FUNC(rt1715_state::k7658_led1_r)); map(0x4000, 0x4000).mirror(0x8000).r(FUNC(rt1715_state::k7658_led2_r)); map(0x8000, 0x9fff).r(FUNC(rt1715_state::k7658_data_r)); } /*************************************************************************** INPUT PORTS ***************************************************************************/ static INPUT_PORTS_START( rt1715w ) PORT_START("S8") PORT_DIPNAME( 0x01, 0x01, "Floppy drive type" ) PORT_DIPSETTING( 0x01, "5.25\"-FD" ) PORT_DIPSETTING( 0x00, "8\"-FD" ) PORT_DIPNAME( 0x02, 0x02, "UNK1" ) PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x04, 0x04, "UNK2" ) PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x08, "UNK3" ) PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x10, 0x10, "UNK4" ) PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x20, "UNK5" ) PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x40, "UNK6" ) PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x80, "UNK7" ) PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) INPUT_PORTS_END static INPUT_PORTS_START( k7658 ) PORT_START("row_00") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("row_10") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("row_20") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("row_30") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("row_40") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("row_50") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("row_60") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("row_70") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("row_08") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("row_18") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("row_28") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("row_38") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("row_48") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) INPUT_PORTS_END /*************************************************************************** MACHINE DRIVERS ***************************************************************************/ /* verify priority -- p. 14 of PC-1715-Servicemanual.pdf */ static const z80_daisy_config rt1715_daisy_chain[] = { { "a71" }, { "a72" }, { "ctc0" }, { "sio0" }, { nullptr } }; static const z80_daisy_config rt1715w_daisy_chain[] = { { "ctc0" }, { "sio0" }, { nullptr } }; static void rt1715w_floppies(device_slot_interface &device) { device.option_add("525qd", FLOPPY_525_QD); } void rt1715_state::rt1715(machine_config &config) { /* basic machine hardware */ Z80(config, m_maincpu, 9.832_MHz_XTAL / 4); m_maincpu->set_addrmap(AS_PROGRAM, &rt1715_state::rt1715_mem); m_maincpu->set_addrmap(AS_IO, &rt1715_state::rt1715_io); m_maincpu->set_daisy_config(rt1715_daisy_chain); MCFG_MACHINE_START_OVERRIDE(rt1715_state, rt1715) MCFG_MACHINE_RESET_OVERRIDE(rt1715_state, rt1715) #if 0 /* keyboard */ z80_device &keyboard(Z80(config, "keyboard", 683000)); keyboard.set_addrmap(AS_PROGRAM, &rt1715_state::k7658_mem); keyboard.set_addrmap(AS_IO, &rt1715_state::k7658_io); #endif /* video hardware */ SCREEN(config, m_screen, SCREEN_TYPE_RASTER); m_screen->set_screen_update("i8275", FUNC(i8275_device::screen_update)); m_screen->set_raw(13.824_MHz_XTAL, 864, 0, 624, 320, 0, 300); // ? GFXDECODE(config, "gfxdecode", "palette", gfx_rt1715); PALETTE(config, "palette", FUNC(rt1715_state::rt1715_palette), 3); I8275(config, m_crtc, 13.824_MHz_XTAL / 8); m_crtc->set_character_width(8); m_crtc->set_display_callback(FUNC(rt1715_state::crtc_display_pixels)); m_crtc->set_screen(m_screen); /* keyboard */ Z80SIO(config, m_sio0, 9.832_MHz_XTAL / 4); Z80CTC(config, m_ctc0, 9.832_MHz_XTAL / 4); m_ctc0->zc_callback<0>().set(m_sio0, FUNC(z80sio_device::txca_w)); m_ctc0->zc_callback<2>().set(m_sio0, FUNC(z80sio_device::rxtxcb_w)); /* floppy */ Z80PIO(config, "a71", 9.832_MHz_XTAL / 4); Z80PIO(config, "a72", 9.832_MHz_XTAL / 4); /* internal ram */ RAM(config, m_ram).set_default_size("64K").set_default_value(0x00); } void rt1715_state::rt1715w(machine_config &config) { rt1715(config); m_maincpu->set_clock(15.9744_MHz_XTAL / 4); m_maincpu->set_addrmap(AS_PROGRAM, &rt1715_state::rt1715w_m1); m_maincpu->set_addrmap(AS_IO, &rt1715_state::rt1715w_io); m_maincpu->set_daisy_config(rt1715w_daisy_chain); ADDRESS_MAP_BANK(config, "bankdev0").set_map(&rt1715_state::rt1715w_banked_mem).set_options(ENDIANNESS_BIG, 8, 19, 0x10000); ADDRESS_MAP_BANK(config, "bankdev1").set_map(&rt1715_state::rt1715w_banked_mem).set_options(ENDIANNESS_BIG, 8, 19, 0x10000); ADDRESS_MAP_BANK(config, "bankdev2").set_map(&rt1715_state::rt1715w_banked_mem).set_options(ENDIANNESS_BIG, 8, 19, 0x10000); MCFG_MACHINE_START_OVERRIDE(rt1715_state, rt1715w) MCFG_MACHINE_RESET_OVERRIDE(rt1715_state, rt1715w) config.device_remove("a71"); config.device_remove("a72"); m_crtc->drq_wr_callback().set(FUNC(rt1715_state::crtc_drq_w)); // operates in polled mode I8272A(config, m_fdc, 8'000'000 / 4, false); m_fdc->drq_wr_callback().set(m_dma, FUNC(z80dma_device::rdy_w)).invert(); FLOPPY_CONNECTOR(config, "i8272:0", rt1715w_floppies, "525qd", floppy_image_device::default_floppy_formats); FLOPPY_CONNECTOR(config, "i8272:1", rt1715w_floppies, "525qd", floppy_image_device::default_floppy_formats); Z80DMA(config, m_dma, 15.9744_MHz_XTAL / 4); m_dma->out_busreq_callback().set(FUNC(rt1715_state::busreq_w)); m_dma->out_int_callback().set(FUNC(rt1715_state::tc_w)); m_dma->in_mreq_callback().set(FUNC(rt1715_state::memory_read_byte)); m_dma->out_mreq_callback().set(FUNC(rt1715_state::memory_write_byte)); m_dma->in_iorq_callback().set(FUNC(rt1715_state::io_read_byte)); m_dma->out_iorq_callback().set(FUNC(rt1715_state::io_write_byte)); Z80CTC(config, m_ctc2, 15.9744_MHz_XTAL / 4); m_ram->set_default_size("256K"); } /*************************************************************************** ROM DEFINITIONS ***************************************************************************/ ROM_START( rt1715 ) ROM_REGION(0x0800, "ipl", 0) ROM_LOAD("s500.a25.3", 0x0000, 0x0800, NO_DUMP) // CCITT 90e7 ROM_LOAD("s501.a25.3", 0x0000, 0x0800, NO_DUMP) // CCITT 68da ROM_LOAD("s502.a25.3", 0x0000, 0x0800, CRC(7b6302e1) SHA1(e8f61763ff8841078a1939aa5e85a17f2af42163)) ROM_REGION(0x1000, "gfx", 0) ROM_LOAD("s619.a25.2", 0x0000, 0x0800, CRC(98647763) SHA1(93fba51ed26392ec3eff1037886576fa12443fe5)) ROM_LOAD("s602.a25.1", 0x0800, 0x0800, NO_DUMP) // CCITT fd67 ROM_REGION(0x0800, "keyboard", 0) ROM_LOAD("s600.ic8", 0x0000, 0x0800, CRC(b7070122) SHA1(687056b822086ef0eee1e9b27e5b031bdbcade61)) ROM_REGION(0x0800, "floppy", 0) ROM_LOAD("068.a8.2", 0x0000, 0x0400, CRC(5306d57b) SHA1(a12d025717b039a8a760eb9961365402f1f501f5)) // "read rom" ROM_LOAD("069.a8.1", 0x0400, 0x0400, CRC(319fa72c) SHA1(5f26af1e36339a934760a63e5975e9db09abeaaf)) // "write rom" ROM_END ROM_START( rt1715lc ) ROM_REGION(0x0800, "ipl", 0) ROM_LOAD("s500.a25.3", 0x0000, 0x0800, NO_DUMP) // CCITT 90e7 ROM_LOAD("s501.a25.3", 0x0000, 0x0800, NO_DUMP) // CCITT 68da ROM_LOAD("s502.a25.3", 0x0000, 0x0800, CRC(7b6302e1) SHA1(e8f61763ff8841078a1939aa5e85a17f2af42163)) ROM_REGION(0x1000, "gfx", 0) ROM_LOAD("s643.a25.2", 0x0000, 0x0800, CRC(ea37f0e6) SHA1(357760974d944b9782734504b9820771e7e37645)) ROM_LOAD("s605.a25.1", 0x0800, 0x0800, CRC(38062024) SHA1(798f62d4adeb7098b7dcbfe6caf28302853ee97d)) ROM_REGION(0x0800, "keyboard", 0) ROM_LOAD("s642.ic8", 0x0000, 0x0800, NO_DUMP) // CCITT 962e ROM_REGION(0x0800, "floppy", 0) ROM_LOAD("068.a8.2", 0x0000, 0x0400, CRC(5306d57b) SHA1(a12d025717b039a8a760eb9961365402f1f501f5)) // "read rom" ROM_LOAD("069.a8.1", 0x0400, 0x0400, CRC(319fa72c) SHA1(5f26af1e36339a934760a63e5975e9db09abeaaf)) // "write rom" ROM_END ROM_START( rt1715w ) ROM_REGION(0x0800, "ipl", 0) ROM_LOAD("s550.bin", 0x0000, 0x0800, CRC(0a96c754) SHA1(4d9ad5b877353d91ba355044d2847e1d621e2b01)) // loaded from floppy on startup ROM_REGION(0x1000, "gfx", ROMREGION_ERASEFF) ROM_REGION(0x0800, "keyboard", 0) ROM_LOAD("s600.ic8", 0x0000, 0x0800, CRC(b7070122) SHA1(687056b822086ef0eee1e9b27e5b031bdbcade61)) ROM_REGION(0x0100, "prom", 0) ROM_LOAD("287.bin", 0x0000, 0x0100, CRC(8508360c) SHA1(d262a8c3cf2d284c67f23b853e0d59ae5cc1d4c8)) // /CAS decoder prom, 74S287 ROM_END /*************************************************************************** GAME DRIVERS ***************************************************************************/ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1986, rt1715, 0, 0, rt1715, k7658, rt1715_state, empty_init, "Robotron", "Robotron PC-1715", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW ) COMP( 1986, rt1715lc, rt1715, 0, rt1715, k7658, rt1715_state, empty_init, "Robotron", "Robotron PC-1715 (latin/cyrillic)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW ) COMP( 1986, rt1715w, rt1715, 0, rt1715w, rt1715w, rt1715_state, empty_init, "Robotron", "Robotron PC-1715W", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW )