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-// 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<u8> m_vram;
- required_region_ptr<u8> m_p_chargen;
- required_device<cpu_device> m_maincpu;
- required_device<palette_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<via6522_device> m_via0;
- required_device<via6522_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<mc146818_device> m_rtc;
- required_device<pia6821_device> m_pia0;
- required_device<pia6821_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 )
-{
- rgb_t const *const palette = m_palette->palette()->entry_list_raw();
- u32 *p = &bitmap.pix(y);
-
- for (u16 x = 0; x < x_count; x++)
- {
- u8 const inv = (x == cursor_x) ? 0xff : 0;
- u16 const mem = (ma + x) & 0x7ff;
- u8 const chr = m_vram[mem];
-
- /* get pattern of pixels for that character scanline */
- u8 const 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 )