// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic, Robbbert /******************************************************************************** EC-65 (also known as Octopus) 2009-07-16 Initial driver. No sound. Storage is floppy disk. No software has been found. Modules are constructed on separate eurocards and plug into a common backplane. EC65 - Disk controller module uses 6821 and 6850. Needs to be emulated. When done, .b to boot disk EC65K - To be developed from scratch. Similar design to EC65, but 6522 replaced with 6821. Contains extra RTC. Particulars of video and universal FDC not known. - Extra 256KB card - Extra Z80 card with ROM, 2x PIA, 64 or 256KB RAM, for CP/M use. - Currently runs into the weeds soon after start, at F070 ********************************************************************************/ #include "emu.h" #include "cpu/m6502/m6502.h" #include "cpu/g65816/g65816.h" #include "video/mc6845.h" #include "machine/6821pia.h" #include "machine/6522via.h" #include "machine/mos6551.h" #include "machine/6850acia.h" #include "machine/keyboard.h" #include "machine/mc146818.h" #include "emupal.h" #include "screen.h" class ec65_common : public driver_device { public: ec65_common(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_vram(*this, "videoram") , m_p_chargen(*this, "chargen") , m_maincpu(*this, "maincpu") , m_palette(*this, "palette") { } MC6845_UPDATE_ROW(crtc_update_row); protected: required_shared_ptr m_vram; required_region_ptr m_p_chargen; required_device m_maincpu; required_device m_palette; }; class ec65_state : public ec65_common { public: ec65_state(const machine_config &mconfig, device_type type, const char *tag) : ec65_common(mconfig, type, tag) , m_via0(*this, "via0") , m_via1(*this, "via1") { } void ec65(machine_config &config); private: void machine_reset() override; void ec65_mem(address_map &map); void kbd_put(u8 data); required_device m_via0; required_device m_via1; }; class ec65k_state : public ec65_common { public: ec65k_state(const machine_config &mconfig, device_type type, const char *tag) : ec65_common(mconfig, type, tag) , m_rtc(*this, "rtc") , m_pia0(*this, "pia0") , m_pia1(*this, "pia1") { } void ec65k(machine_config &config); private: void ec65k_mem(address_map &map); void kbd_put(u8 data); required_device m_rtc; required_device m_pia0; required_device m_pia1; }; void ec65_state::ec65_mem(address_map &map) { map.unmap_value_high(); map(0x0000, 0xdfff).ram(); map(0xe000, 0xe003).rw("pia", FUNC(pia6821_device::read), FUNC(pia6821_device::write)); // FDC card map(0xe010, 0xe011).rw("fdc", FUNC(acia6850_device::read), FUNC(acia6850_device::write)); // FDC card map(0xe100, 0xe10f).m(m_via0, FUNC(via6522_device::map)); map(0xe110, 0xe11f).m(m_via1, FUNC(via6522_device::map)); map(0xe130, 0xe133).rw("uart", FUNC(mos6551_device::read), FUNC(mos6551_device::write)); map(0xe140, 0xe140).rw("crtc", FUNC(mc6845_device::status_r), FUNC(mc6845_device::address_w)); map(0xe141, 0xe141).rw("crtc", FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w)); map(0xe400, 0xe7ff).ram(); // 1KB on-board RAM map(0xe800, 0xefff).ram().share("videoram"); map(0xf000, 0xffff).rom().region("maincpu",0); } void ec65k_state::ec65k_mem(address_map &map) { map.unmap_value_high(); map(0x000000, 0x00dfff).ram(); // D000-DFFF = System RAM map(0x00e000, 0x00e003).rw("pia", FUNC(pia6821_device::read), FUNC(pia6821_device::write)); // old FDC card map(0x00e010, 0x00e011).rw("fdc", FUNC(acia6850_device::read), FUNC(acia6850_device::write)); // old FDC card //map(0x00e150, colorator CRTC (no info) //map(0x00e280, basicode interface (no info) //map(0x00e300, Z80 board map(0x00e400, 0x00e403).rw(m_pia0, FUNC(pia6821_device::read), FUNC(pia6821_device::write)); // PIA0 porta=keyboard; portb=parallel port map(0x00e410, 0x00e413).rw("uart", FUNC(mos6551_device::read), FUNC(mos6551_device::write)); map(0x00e420, 0x00e423).rw(m_pia1, FUNC(pia6821_device::read), FUNC(pia6821_device::write)); // PIA1 porta=centronics control; portb=centronics data map(0x00e430, 0x00e430).lw8(NAME([this] (u8 data) { m_rtc->write(0, data); })); // RTC 146818 - has battery backup map(0x00e431, 0x00e431).lr8(NAME([this] () { return m_rtc->read(1); })); map(0x00e431, 0x00e431).lw8(NAME([this] (u8 data) { m_rtc->write(1, data); })); //map(0x00e500, 0x00e5ff) universal disk controller (no info) map(0x00e800, 0x00efff).ram().share("videoram"); map(0x00f000, 0x00ffff).rom().region("maincpu",0); map(0x010000, 0x0fffff).ram(); } /* Input ports */ static INPUT_PORTS_START( ec65 ) INPUT_PORTS_END void ec65_state::kbd_put(u8 data) { if (data) { m_via0->write_pa(data); m_via0->write_ca1(1); m_via0->write_ca1(0); } } void ec65k_state::kbd_put(u8 data) { if (data) { m_pia0->porta_w(data); m_pia0->ca1_w(1); m_pia0->ca1_w(0); } } void ec65_state::machine_reset() { m_via1->write_pb(0xff); } MC6845_UPDATE_ROW( ec65_common::crtc_update_row ) { const rgb_t *palette = m_palette->palette()->entry_list_raw(); u8 chr,gfx,inv; u16 mem,x; u32 *p = &bitmap.pix32(y); for (x = 0; x < x_count; x++) { inv = (x == cursor_x) ? 0xff : 0; mem = (ma + x) & 0x7ff; chr = m_vram[mem]; /* get pattern of pixels for that character scanline */ gfx = m_p_chargen[(chr<<4) | (ra & 0x0f)] ^ inv; /* Display a scanline of a character */ *p++ = palette[BIT(gfx, 7)]; *p++ = palette[BIT(gfx, 6)]; *p++ = palette[BIT(gfx, 5)]; *p++ = palette[BIT(gfx, 4)]; *p++ = palette[BIT(gfx, 3)]; *p++ = palette[BIT(gfx, 2)]; *p++ = palette[BIT(gfx, 1)]; *p++ = palette[BIT(gfx, 0)]; } } /* F4 Character Displayer */ static const gfx_layout charlayout = { 8, 8, /* 8 x 8 characters */ 256, /* 256 characters */ 1, /* 1 bits per pixel */ { 0 }, /* no bitplanes */ /* x offsets */ { 0, 1, 2, 3, 4, 5, 6, 7 }, /* y offsets */ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, 8*16 /* every char takes 16 bytes */ }; static GFXDECODE_START( gfx_ec65 ) GFXDECODE_ENTRY( "chargen", 0x0000, charlayout, 0, 1 ) GFXDECODE_END void ec65_state::ec65(machine_config &config) { /* basic machine hardware */ M6502(config, m_maincpu, XTAL(4'000'000) / 4); m_maincpu->set_addrmap(AS_PROGRAM, &ec65_state::ec65_mem); /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_refresh_hz(60); screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */ screen.set_size(640, 200); screen.set_visarea_full(); screen.set_screen_update("crtc", FUNC(mc6845_device::screen_update)); GFXDECODE(config, "gfxdecode", m_palette, gfx_ec65); PALETTE(config, "palette", palette_device::MONOCHROME); mc6845_device &crtc(MC6845(config, "crtc", XTAL(16'000'000) / 8)); crtc.set_screen("screen"); crtc.set_show_border_area(false); crtc.set_char_width(8); /*?*/ crtc.set_update_row_callback(FUNC(ec65_state::crtc_update_row)); /* devices */ ACIA6850(config, "fdc", 0); // used as a FDC on separate card PIA6821(config, "pia", 0); // assists 6850 VIA6522(config, m_via0, XTAL(4'000'000) / 4); VIA6522(config, m_via1, XTAL(4'000'000) / 4); mos6551_device &uart(MOS6551(config, "uart", 0)); uart.set_xtal(XTAL(1'843'200)); generic_keyboard_device &keyboard(GENERIC_KEYBOARD(config, "keyboard", 0)); keyboard.set_keyboard_callback(FUNC(ec65_state::kbd_put)); } void ec65k_state::ec65k(machine_config &config) { /* basic machine hardware */ g65816_device &maincpu(G65816(config, "maincpu", XTAL(4'000'000))); // can use 4,2 or 1 MHz maincpu.set_addrmap(AS_PROGRAM, &ec65k_state::ec65k_mem); /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_refresh_hz(60); screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */ screen.set_size(640, 200); screen.set_visarea_full(); screen.set_screen_update("crtc", FUNC(mc6845_device::screen_update)); GFXDECODE(config, "gfxdecode", "palette", gfx_ec65); PALETTE(config, "palette", palette_device::MONOCHROME); mc6845_device &crtc(MC6845(config, "crtc", XTAL(16'000'000) / 8)); crtc.set_screen("screen"); crtc.set_show_border_area(false); crtc.set_char_width(8); /*?*/ crtc.set_update_row_callback(FUNC(ec65k_state::crtc_update_row)); /* devices */ ACIA6850(config, "fdc", 0); // used as a FDC on separate card PIA6821(config, "pia", 0); // assists 6850 MC146818(config, m_rtc, 32.768_kHz_XTAL); //m_rtc->irq().set(FUNC(micronic_state::mc146818_irq)); Connects to common irq line used by below PIAs and UART PIA6821(config, m_pia0, 0); PIA6821(config, m_pia1, 0); mos6551_device &uart(MOS6551(config, "uart", 0)); uart.set_xtal(XTAL(1'843'200)); generic_keyboard_device &keyboard(GENERIC_KEYBOARD(config, "keyboard", 0)); keyboard.set_keyboard_callback(FUNC(ec65k_state::kbd_put)); } /* ROM definition */ ROM_START( ec65 ) ROM_REGION( 0x1000, "maincpu", 0 ) ROM_LOAD( "ec65.ic6", 0x0000, 0x1000, CRC(acd928ed) SHA1(e02a688a057ff77294717cf7b887425fed0b1153)) ROM_REGION( 0x1000, "chargen", 0 ) ROM_LOAD( "chargen.ic19", 0x0000, 0x1000, CRC(9b56a28d) SHA1(41c04fd9fb542c50287bc0e366358a61fc4b0cd4)) // Located on VDU card ROM_END ROM_START( ec65k ) ROM_REGION( 0x1000, "maincpu", 0 ) ROM_LOAD( "ec65k.ic19", 0x0000, 0x1000, CRC(5e5a890a) SHA1(daa006f2179fd156833e11c73b37881cafe5dede)) ROM_REGION( 0x1000, "chargen", 0 ) ROM_LOAD( "chargen.ic19", 0x0000, 0x1000, CRC(9b56a28d) SHA1(41c04fd9fb542c50287bc0e366358a61fc4b0cd4)) // Located on VDU card ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ COMP( 1985, ec65, 0, 0, ec65, ec65, ec65_state, empty_init, "Elektor", "EC-65", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW | MACHINE_SUPPORTS_SAVE ) COMP( 1986, ec65k, ec65, 0, ec65k, ec65, ec65k_state, empty_init, "Elektor", "EC-65K", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW | MACHINE_SUPPORTS_SAVE )