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Diffstat (limited to 'src/mame/eaca/cgenie.cpp')
-rw-r--r-- | src/mame/eaca/cgenie.cpp | 532 |
1 files changed, 532 insertions, 0 deletions
diff --git a/src/mame/eaca/cgenie.cpp b/src/mame/eaca/cgenie.cpp new file mode 100644 index 00000000000..2256400d005 --- /dev/null +++ b/src/mame/eaca/cgenie.cpp @@ -0,0 +1,532 @@ +// license:GPL-2.0+ +// copyright-holders:Dirk Best +/*************************************************************************** + + EACA Colour Genie EG2000 + + TODO: + - System is too fast, there should be one wait cycle every five cycles? + - Adjust visible area so that the borders aren't that large (needs + MC6845 changes) + - Verify BASIC and character set versions + +***************************************************************************/ + +#include "emu.h" +#include "cpu/z80/z80.h" +#include "machine/ram.h" +#include "video/mc6845.h" +#include "sound/ay8910.h" +#include "imagedev/cassette.h" +#include "formats/cgen_cas.h" +#include "bus/rs232/rs232.h" +#include "bus/cgenie/expansion/expansion.h" +#include "bus/cgenie/parallel/parallel.h" +#include "screen.h" +#include "softlist_dev.h" +#include "speaker.h" + + +namespace { + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class cgenie_state : public driver_device +{ +public: + cgenie_state(const machine_config &mconfig, device_type type, const char *tag) : + driver_device(mconfig, type, tag), + m_maincpu(*this, "maincpu"), + m_cassette(*this, "cassette"), + m_ram(*this, RAM_TAG), + m_crtc(*this, "crtc"), + m_rs232(*this, "rs232"), + m_exp(*this, "exp"), + m_char_rom(*this, "gfx1"), + m_color_ram(*this, "colorram"), + m_font_ram(*this, "fontram"), + m_keyboard(*this, "KEY.%u", 0), + m_palette(nullptr), + m_control(0xff), + m_rs232_rx(1), + m_rs232_dcd(1) + { } + + void init_cgenie_eu(); + void init_cgenie_nz(); + + MC6845_BEGIN_UPDATE(crtc_begin_update); + MC6845_UPDATE_ROW(crtc_update_row); + + // 4-bit color ram + uint8_t colorram_r(offs_t offset); + void colorram_w(offs_t offset, uint8_t data); + + // control port + void control_w(uint8_t data); + uint8_t control_r(); + + uint8_t keyboard_r(offs_t offset); + DECLARE_INPUT_CHANGED_MEMBER(rst_callback); + + void rs232_rx_w(int state); + void rs232_dcd_w(int state); + + void cgenie(machine_config &config); + void cgenie_io(address_map &map) ATTR_COLD; + void cgenie_mem(address_map &map) ATTR_COLD; +protected: + virtual void machine_start() override ATTR_COLD; + +private: + required_device<cpu_device> m_maincpu; + required_device<cassette_image_device> m_cassette; + required_device<ram_device> m_ram; + required_device<hd6845s_device> m_crtc; + required_device<rs232_port_device> m_rs232; + required_device<cg_exp_slot_device> m_exp; + required_memory_region m_char_rom; + required_shared_ptr<uint8_t> m_color_ram; + required_shared_ptr<uint8_t> m_font_ram; + required_ioport_array<8> m_keyboard; + + static const rgb_t m_palette_bg[]; + static const rgb_t m_palette_eu[]; + static const rgb_t m_palette_nz[]; + + const rgb_t *m_palette; + rgb_t m_background_color; + + uint8_t m_control; + + int m_rs232_rx; + int m_rs232_dcd; +}; + + +//************************************************************************** +// ADDRESS MAPS +//************************************************************************** + +void cgenie_state::cgenie_mem(address_map &map) +{ + map.unmap_value_high(); + map(0x0000, 0x3fff).rom(); +// map(0x4000, 0xbfff).ram(); // set up in machine_start() + map(0xc000, 0xefff).noprw(); // cartridge space + map(0xf000, 0xf3ff).rw(FUNC(cgenie_state::colorram_r), FUNC(cgenie_state::colorram_w)).share("colorram"); + map(0xf400, 0xf7ff).ram().share("fontram"); + map(0xf800, 0xf8ff).mirror(0x300).r(FUNC(cgenie_state::keyboard_r)); + map(0xfc00, 0xffff).noprw(); // cartridge space +} + +void cgenie_state::cgenie_io(address_map &map) +{ + map.global_mask(0xff); + map(0xf8, 0xf8).w("ay8910", FUNC(ay8910_device::address_w)); + map(0xf9, 0xf9).rw("ay8910", FUNC(ay8910_device::data_r), FUNC(ay8910_device::data_w)); + map(0xfa, 0xfa).w(m_crtc, FUNC(hd6845s_device::address_w)); + map(0xfb, 0xfb).rw(m_crtc, FUNC(hd6845s_device::register_r), FUNC(hd6845s_device::register_w)); + map(0xff, 0xff).rw(FUNC(cgenie_state::control_r), FUNC(cgenie_state::control_w)); +} + + +//************************************************************************** +// INPUTS +//************************************************************************** + +static INPUT_PORTS_START( cgenie ) + PORT_START("KEY.0") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@') PORT_CHAR('`') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_CHAR('a') + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_CHAR('b') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_CHAR('c') + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_CHAR('d') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_CHAR('e') + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_CHAR('f') + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_CHAR('g') + + PORT_START("KEY.1") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_CHAR('h') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_CHAR('i') + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_CHAR('j') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_CHAR('k') + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_CHAR('l') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_CHAR('m') + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_CHAR('n') + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_CHAR('o') + + PORT_START("KEY.2") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_CHAR('p') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_CHAR('q') + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_CHAR('r') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_CHAR('s') + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_CHAR('t') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_CHAR('u') + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_CHAR('v') + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_CHAR('w') + + PORT_START("KEY.3") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_CHAR('x') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_CHAR('y') + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_CHAR('z') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_UNUSED) // produces [ and { when pressed, not on keyboard + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_CHAR(UCHAR_MAMEKEY(F5)) + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_CHAR(UCHAR_MAMEKEY(F6)) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_CHAR(UCHAR_MAMEKEY(F7)) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_CHAR(UCHAR_MAMEKEY(F8)) + + PORT_START("KEY.4") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') + + PORT_START("KEY.5") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR(':') PORT_CHAR('*') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('-') PORT_CHAR('=') + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') + + PORT_START("KEY.6") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Clear") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR(UCHAR_MAMEKEY(F10)) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Break") PORT_CODE(KEYCODE_ESC) PORT_CHAR(27) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) // prints [ which is interpreted by basic as ^ + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) // newline + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) // backspace + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) // tab + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') + + PORT_START("KEY.7") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Mod Sel") PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_MAMEKEY(F9)) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Rpt") PORT_CODE(KEYCODE_PGDN) PORT_CHAR(UCHAR_MAMEKEY(F11)) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2) + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_OTHER) PORT_NAME("L.P.") // marked as "L.P." in the manual, lightpen? + + PORT_START("RST") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_OTHER) PORT_CODE(KEYCODE_F5) PORT_NAME("Rst") PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_CHANGED_MEMBER(DEVICE_SELF, FUNC(cgenie_state::rst_callback), 0) +INPUT_PORTS_END + + +//************************************************************************** +// KEYBOARD +//************************************************************************** + +uint8_t cgenie_state::keyboard_r(offs_t offset) +{ + uint8_t data = 0; + + for (int i = 0; i < 8; i++) + if (BIT(offset, i)) + data |= m_keyboard[i]->read(); + + return data; +} + +INPUT_CHANGED_MEMBER( cgenie_state::rst_callback ) +{ + m_maincpu->set_input_line(INPUT_LINE_NMI, newval); +} + + +//************************************************************************** +// CONTROL PORT & RS232 +//************************************************************************** + +void cgenie_state::control_w(uint8_t data) +{ + // cassette output + m_cassette->output(BIT(data, 0) ? -1.0 : 1.0); + + // serial output + m_rs232->write_txd(BIT(data, 1)); + + // background color selection + if (BIT(data, 2)) + m_background_color = m_palette_bg[4]; + else + m_background_color = m_palette_bg[data >> 6 & 0x03]; + + // graphics/text mode switch + m_crtc->set_hpixels_per_column(BIT(data, 5) ? 4 : 8); + + m_control = data; +} + +uint8_t cgenie_state::control_r() +{ + uint8_t data = 0; + + data |= m_cassette->input() > 0 ? 1 : 0; + data |= m_rs232_rx << 1; + data |= m_rs232_dcd << 2; + + return data; +} + +void cgenie_state::rs232_rx_w(int state) +{ + m_rs232_rx = state; +} + +void cgenie_state::rs232_dcd_w(int state) +{ + m_rs232_dcd = state; +} + + +//************************************************************************** +// DRIVER INIT +//************************************************************************** + +void cgenie_state::init_cgenie_eu() +{ + m_palette = &m_palette_eu[0]; +} + +void cgenie_state::init_cgenie_nz() +{ + m_palette = &m_palette_nz[0]; +} + +void cgenie_state::machine_start() +{ + // setup ram + m_maincpu->space(AS_PROGRAM).install_ram(0x4000, 0x4000 + m_ram->size() - 1, m_ram->pointer()); +} + + +//************************************************************************** +// VIDEO EMULATION +//************************************************************************** + +uint8_t cgenie_state::colorram_r(offs_t offset) +{ + return m_color_ram[offset] | 0xf0; +} + +void cgenie_state::colorram_w(offs_t offset, uint8_t data) +{ + m_color_ram[offset] = data & 0x0f; +} + +MC6845_BEGIN_UPDATE( cgenie_state::crtc_begin_update ) +{ + bitmap.fill(m_background_color, cliprect); +} + +MC6845_UPDATE_ROW( cgenie_state::crtc_update_row ) +{ + // don't need to do anything in vblank + if (!de) + return; + + for (int column = 0; column < x_count; column++) + { + uint8_t code = m_ram->pointer()[ma + column]; + uint8_t color = m_color_ram[(ma + column) & 0x3ff]; + + // gfx mode? + if (BIT(m_control, 5)) + { + const rgb_t map[] = { m_background_color, m_palette[8], m_palette[6], m_palette[5] }; + + bitmap.pix(y + vbp, column * 4 + hbp + 0) = map[code >> 6 & 0x03]; + bitmap.pix(y + vbp, column * 4 + hbp + 1) = map[code >> 4 & 0x03]; + bitmap.pix(y + vbp, column * 4 + hbp + 2) = map[code >> 2 & 0x03]; + bitmap.pix(y + vbp, column * 4 + hbp + 3) = map[code >> 0 & 0x03]; + } + else + { + uint8_t gfx = 0; + + // cursor visible? + if (cursor_x == column) + gfx = 0xff; + + // or use character rom? + else if ((code < 128) || (code < 192 && BIT(m_control, 4)) || (code >= 192 && BIT(m_control, 3))) + gfx = m_char_rom->base()[(code << 3) | ra]; + + // or the programmable characters? + else + gfx = m_font_ram[((code << 3) | ra) & 0x3ff]; + + // 8 pixel chars + for (int p = 0; p < 8; p++) + bitmap.pix(y + vbp, column * 8 + hbp + p) = BIT(gfx, 7 - p) ? m_palette[color] : m_background_color; + } + } +} + + +//************************************************************************** +// PALETTE +//************************************************************************** + +// how accurate are these colors? +const rgb_t cgenie_state::m_palette_bg[] = +{ + rgb_t::black(), + rgb_t(0x70, 0x28, 0x20), // dark orange + rgb_t(0x28, 0x70, 0x20), // dark green + rgb_t(0x48, 0x48, 0x48), // dark gray + rgb_t(0x70, 0x00, 0x70) // dark purple +}; + +// european palette +const rgb_t cgenie_state::m_palette_eu[] = +{ + rgb_t(0x5e, 0x5e, 0x5e), // gray + rgb_t(0x11, 0xff, 0xea), // cyan + rgb_t(0xff, 0x00, 0x5e), // red + rgb_t(0xea, 0xea, 0xea), // white + rgb_t(0xff, 0xf9, 0x00), // yellow + rgb_t(0x6e, 0xff, 0x00), // green + rgb_t(0xff, 0x52, 0x00), // orange + rgb_t(0xea, 0xff, 0x00), // light yellow + rgb_t(0x02, 0x48, 0xff), // blue + rgb_t(0x8e, 0xd4, 0xff), // light blue + rgb_t(0xff, 0x12, 0xff), // pink + rgb_t(0x88, 0x43, 0xff), // purple + rgb_t(0x8c, 0x8c, 0x8c), // light gray + rgb_t(0x00, 0xfb, 0x8c), // turquoise + rgb_t(0xd2, 0x00, 0xff), // magenta + rgb_t::white() // bright white +}; + +// new zealand palette +const rgb_t cgenie_state::m_palette_nz[] = +{ + rgb_t::white(), + rgb_t(0x12, 0xff, 0xff), + rgb_t(0xff, 0x6f, 0xff), + rgb_t(0x31, 0x77, 0xff), + rgb_t(0xff, 0xcb, 0x00), + rgb_t(0x6e, 0xff, 0x00), + rgb_t(0xff, 0x52, 0x00), + rgb_t(0x5e, 0x5e, 0x5e), + rgb_t(0xea, 0xea, 0xea), + rgb_t(0x00, 0xff, 0xdd), + rgb_t(0xd2, 0x00, 0xff), + rgb_t(0x02, 0x48, 0xff), + rgb_t(0xff, 0xf9, 0x00), + rgb_t(0x00, 0xda, 0x00), + rgb_t(0xff, 0x22, 0x00), + rgb_t::black() +}; + + +//************************************************************************** +// MACHINE DEFINTIONS +//************************************************************************** + +void cgenie_state::cgenie(machine_config &config) +{ + // basic machine hardware + Z80(config, m_maincpu, XTAL(17'734'470) / 8); // 2.2168 MHz + m_maincpu->set_addrmap(AS_PROGRAM, &cgenie_state::cgenie_mem); + m_maincpu->set_addrmap(AS_IO, &cgenie_state::cgenie_io); + + // video hardware + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); + screen.set_raw(XTAL(17'734'470) / 2, 568, 32, 416, 312, 28, 284); + screen.set_screen_update("crtc", FUNC(hd6845s_device::screen_update)); + + HD6845S(config, m_crtc, XTAL(17'734'470) / 16); + m_crtc->set_screen("screen"); + m_crtc->set_show_border_area(true); + m_crtc->set_char_width(8); + m_crtc->set_begin_update_callback(FUNC(cgenie_state::crtc_begin_update)); + m_crtc->set_update_row_callback(FUNC(cgenie_state::crtc_update_row)); + + // sound hardware + SPEAKER(config, "mono").front_center(); + ay8910_device &ay8910(AY8910(config, "ay8910", XTAL(17'734'470) / 8)); + ay8910.port_a_read_callback().set("par", FUNC(cg_parallel_slot_device::pa_r)); + ay8910.port_a_write_callback().set("par", FUNC(cg_parallel_slot_device::pa_w)); + ay8910.port_b_read_callback().set("par", FUNC(cg_parallel_slot_device::pb_r)); + ay8910.port_b_write_callback().set("par", FUNC(cg_parallel_slot_device::pb_w)); + ay8910.add_route(ALL_OUTPUTS, "mono", 0.75); + + CASSETTE(config, m_cassette); + m_cassette->set_formats(cgenie_cassette_formats); + m_cassette->set_default_state(CASSETTE_STOPPED); + m_cassette->add_route(ALL_OUTPUTS, "mono", 0.05); + m_cassette->set_interface("cgenie_cass"); + + SOFTWARE_LIST(config, "cass_list").set_original("cgenie_cass"); + + // serial port + rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, nullptr)); + rs232.rxd_handler().set(FUNC(cgenie_state::rs232_rx_w)); + rs232.dcd_handler().set(FUNC(cgenie_state::rs232_dcd_w)); + + // cartridge expansion slot + CG_EXP_SLOT(config, m_exp); + m_exp->set_program_space(m_maincpu, AS_PROGRAM); + m_exp->set_io_space(m_maincpu, AS_IO); + m_exp->int_handler().set_inputline(m_maincpu, INPUT_LINE_IRQ0); + + // parallel slot + CG_PARALLEL_SLOT(config, "par"); + + // internal ram + RAM(config, RAM_TAG).set_default_size("16K").set_extra_options("32K"); +} + + +//************************************************************************** +// ROM DEFINITIONS +//************************************************************************** + +ROM_START( cgenie ) + ROM_REGION(0x4000, "maincpu", 0) + ROM_LOAD("cg_rom1.z1", 0x0000, 0x1000, CRC(d3369420) SHA1(fe7f06f8e2b648d695d4787d00a374d3e4ac5d39)) + ROM_LOAD("cg_rom2.z2", 0x1000, 0x1000, CRC(73d2c9ea) SHA1(343d595b4eeaea627f9c36d5cef3827c79593425)) + ROM_LOAD("cg_rom3.z3", 0x2000, 0x1000, CRC(3f358811) SHA1(6ba151759fd8fd367806cf2dd5f1dfc33ee9521f)) + ROM_LOAD("cg_rom4.z4", 0x3000, 0x1000, CRC(be235782) SHA1(d7d61208a9855ffd09ecb051618f5ed6a8816f3f)) + + ROM_REGION(0x0800, "gfx1", 0) + // this is a "german" character set with umlauts, is this official? + ROM_LOAD("cgenieg.fnt", 0x0000, 0x0800, CRC(c3e60d57) SHA1(fb96f608fdb47391145fdcd614a9c7a79756e6a4)) + // default character set + ROM_LOAD("cgenie1.fnt", 0x0000, 0x0800, CRC(4fed774a) SHA1(d53df8212b521892cc56be690db0bb474627d2ff)) +ROM_END + +ROM_START( cgenienz ) + ROM_REGION(0x4000, "maincpu", 0) + ROM_SYSTEM_BIOS(0, "old", "Old ROM") + ROMX_LOAD("cg-basic-rom-v1-pal-en.rom", 0x0000, 0x4000, CRC(844aaedd) SHA1(b7f984bc5cd979c7ad11ff909e8134f694aea7aa), ROM_BIOS(0)) + ROM_SYSTEM_BIOS(1, "new", "New ROM") + ROMX_LOAD("cgromv2.rom", 0x0000, 0x4000, CRC(cfb84e09) SHA1(e199e4429bab6f9fca2bb05e71324538928a693a), ROM_BIOS(1)) + + ROM_REGION(0x0800, "gfx1", 0) + ROM_LOAD("cgenie1.fnt", 0x0000, 0x0800, CRC(4fed774a) SHA1(d53df8212b521892cc56be690db0bb474627d2ff)) +ROM_END + +} // anonymous namespace + + +//************************************************************************** +// SYSTEM DRIVERS +//************************************************************************** + +// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS +COMP( 1982, cgenie, 0, 0, cgenie, cgenie, cgenie_state, init_cgenie_eu, "EACA", "Colour Genie EG2000", 0) +COMP( 1982, cgenienz, cgenie, 0, cgenie, cgenie, cgenie_state, init_cgenie_nz, "EACA", "Colour Genie EG2000 (New Zealand)", 0) |