diff options
Diffstat (limited to 'src/mame/isc/compucolor.cpp')
-rw-r--r-- | src/mame/isc/compucolor.cpp | 475 |
1 files changed, 475 insertions, 0 deletions
diff --git a/src/mame/isc/compucolor.cpp b/src/mame/isc/compucolor.cpp new file mode 100644 index 00000000000..f173f2ae3b7 --- /dev/null +++ b/src/mame/isc/compucolor.cpp @@ -0,0 +1,475 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/* + + Compucolor II + + http://www.compucolor.org/index.html + +*/ + +/* + + TODO: + + - interlaced video + - blinking + - add-on ROM + - add-on RAM + - add-on unit + +*/ + +#include "emu.h" +#include "bus/rs232/rs232.h" +#include "cpu/i8085/i8085.h" +#include "bus/compucolor/floppy.h" +#include "machine/ram.h" +#include "machine/ripple_counter.h" +#include "machine/tms5501.h" +#include "video/tms9927.h" +#include "emupal.h" +#include "screen.h" +#include "softlist_dev.h" +#include "utf8.h" + + +namespace { + +#define I8080_TAG "ua2" +#define TMS5501_TAG "ud2" +#define CRT5027_TAG "uf9" +#define RS232_TAG "rs232" + +class compucolor2_state : public driver_device +{ +public: + compucolor2_state(const machine_config &mconfig, device_type type, const char *tag) : + driver_device(mconfig, type, tag), + m_maincpu(*this, I8080_TAG), + m_mioc(*this, TMS5501_TAG), + m_vtac(*this, CRT5027_TAG), + m_palette(*this, "palette"), + m_rs232(*this, RS232_TAG), + m_floppy0(*this, "cd0"), + m_floppy1(*this, "cd1"), + m_char_rom(*this, "chargen"), + m_video_ram(*this, "videoram"), + m_y(*this, "Y%u", 0), + m_y128(*this, "Y128") + { } + + required_device<cpu_device> m_maincpu; + required_device<tms5501_device> m_mioc; + required_device<crt5027_device> m_vtac; + required_device<palette_device> m_palette; + required_device<rs232_port_device> m_rs232; + required_device<compucolor_floppy_port_device> m_floppy0; + required_device<compucolor_floppy_port_device> m_floppy1; + required_memory_region m_char_rom; + required_shared_ptr<uint8_t> m_video_ram; + required_ioport_array<16> m_y; + required_ioport m_y128; + + virtual void machine_start() override ATTR_COLD; + virtual void machine_reset() override ATTR_COLD; + + uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); + + uint8_t xi_r(); + void xo_w(uint8_t data); + void xmt_w(int state); + + IRQ_CALLBACK_MEMBER( int_ack ); + + uint8_t m_xo; + void compucolor2(machine_config &config); + void compucolor2_io(address_map &map) ATTR_COLD; + void compucolor2_mem(address_map &map) ATTR_COLD; +}; + +void compucolor2_state::compucolor2_mem(address_map &map) +{ + map(0x0000, 0x3fff).rom().region(I8080_TAG, 0); + map(0x6000, 0x6fff).mirror(0x1000).ram().share("videoram"); + map(0x8000, 0xffff).ram(); +} + +void compucolor2_state::compucolor2_io(address_map &map) +{ + map(0x00, 0x0f).mirror(0x10).m(m_mioc, FUNC(tms5501_device::io_map)); + map(0x60, 0x6f).mirror(0x10).rw(m_vtac, FUNC(crt5027_device::read), FUNC(crt5027_device::write)); + map(0x80, 0x9f).mirror(0x60).rom().region("ua1", 0); +} + +static INPUT_PORTS_START( compucolor2 ) + PORT_START("Y0") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("_ CRT") PORT_CHAR('_') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F15 PLOT ESC") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BL/A7 OFF") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BLINK ON") + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y1") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("^ USER") PORT_CHAR('^') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F14 CHAR RECT") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("A7 ON") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BG ON") + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y2") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("m M TERM MODE") PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("] BLCK") PORT_CHAR(']') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F13 POINT X") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("RETURN ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR('\r') + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("FG ON") + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(UCHAR_MAMEKEY(EQUALS_PAD)) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y3") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("l L LOCL") PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("\\ 45 UP") PORT_CHAR('\\') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F12 POINT Y") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ERASE PAGE") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y4") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("k K ROLL") PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("[ VIS") PORT_CHAR('[') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F11 POINT INC") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ERASE LINE") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(PLUS_PAD)) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y5") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("z Z 45 DW") PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F10 X BAR XO") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_DOWN) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_LEFT) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(u8"Keypad ×") PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR(UCHAR_MAMEKEY(ASTERISK)) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y6") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("y Y TEST") PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F9 X BAR Y") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TAB) PORT_CHAR(UCHAR_MAMEKEY(TAB)) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y7") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("h H HALF") PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("x X XMIT") PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F8 X BAR XM") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("HOME") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y8") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("g G BELL") PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("w W BASIC") PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F7 X BAR INC") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("LIST") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y9") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("v V DEL LINE") PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F6 Y BAR YO") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("POKE") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y10") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("e E BSC RST") PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("u U INS LINE") PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F5 Y BAR X") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("AUTO") PORT_CODE(KEYCODE_PGDN) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PRINT") + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y11") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("d D DISK FCS") PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("t T TEXT EDIT") PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F4 Y BAR YM") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("DELETE CHAR") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("LOAD") + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y12") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("c C CURSOR X-Y") PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("s S ASMB") PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F3 Y BAR INC") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("INSERT LINE") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SAVE") + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y13") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("b B PLOT") PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("r R BAUD RATE") PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F2 VECT X1") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("DELETE LINE") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PLOT") + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y14") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("a A PROT BLND") PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("q Q INS CHAR") PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F1 VECT Y1") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("INSERT CHAR") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PUT") + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y15") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("@ NULL") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@') + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("p P CPU OP SYS") PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F0 VECT INC") + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BREAK ATTN") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("OUT") + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("Y128") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CPU RESET") + PORT_BIT( 0x0e, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("REPEAT") + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CAPS LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) +INPUT_PORTS_END + +uint32_t compucolor2_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) +{ + for (int y = 0; y < 32*8; y++) + { + offs_t offset = (y / 8) * 128; + + for (int sx = 0; sx < 64; sx++) + { + uint8_t code = m_video_ram[offset++]; + uint8_t attr = m_video_ram[offset++]; + + offs_t char_offs = ((code & 0x7f) << 3) | (y & 0x07); + if (BIT(code, 7)) char_offs = ((code & 0x7f) << 3) | ((y >> 1) & 0x07); + + uint8_t data = m_char_rom->base()[char_offs]; + + rgb_t const fg = m_palette->pen_color(attr & 0x07); + rgb_t const bg = m_palette->pen_color((attr >> 3) & 0x07); + + for (int x = 0; x < 6; x++) + { + bitmap.pix(y, (sx * 6) + x) = BIT(data, 7) ? fg : bg; + + data <<= 1; + } + } + } + + return 0; +} + +uint8_t compucolor2_state::xi_r() +{ + uint8_t data = 0xff; + + switch ((m_xo >> 4) & 0x03) + { + case 0: + data &= m_y[m_xo & 0x0f]->read(); + + if (BIT(m_xo, 7)) + { + data = (m_y128->read() & 0xf0) | (data & 0x0f); + } + break; + + default: + data = 0; + } + + return data; +} + +void compucolor2_state::xo_w(uint8_t data) +{ + /* + + bit description + + 0 Keyboard A0, Stepper Phase 0 + 1 Keyboard A1, Stepper Phase 1 + 2 Keyboard A2, Stepper Phase 2 + 3 Keyboard A3, Disk _R/W + 4 00=Keyboard/Modem, 01=Internal Drive (CD0), 10=External Drive (CD1) + 5 ^ + 6 LED + 7 0=Normal Keyboard, 1=SHIFT/CONTROL/REPEAT/CAPS LOCK + + */ + + m_xo = data; + + switch ((m_xo >> 4) & 0x03) + { + case 1: + m_floppy0->select_w(0); + m_floppy0->rw_w(BIT(data, 3)); + m_floppy0->stepper_w(data & 0x07); + + m_floppy1->select_w(1); + break; + + case 2: + m_floppy1->select_w(0); + m_floppy1->rw_w(BIT(data, 3)); + m_floppy1->stepper_w(data & 0x07); + + m_floppy0->select_w(1); + break; + } +} + +void compucolor2_state::xmt_w(int state) +{ + switch ((m_xo >> 4) & 0x03) + { + case 0: + m_rs232->write_txd(state); + break; + + case 1: + m_floppy0->write_txd(state); + break; + + case 2: + m_floppy1->write_txd(state); + break; + } +} + +IRQ_CALLBACK_MEMBER( compucolor2_state::int_ack ) +{ + return m_mioc->get_vector(); +} + +void compucolor2_state::machine_start() +{ + // state saving + save_item(NAME(m_xo)); +} + +void compucolor2_state::machine_reset() +{ + m_rs232->write_rts(1); + m_rs232->write_dtr(1); +} + +void compucolor2_state::compucolor2(machine_config &config) +{ + // basic machine hardware + I8080(config, m_maincpu, XTAL(17'971'200)/9); + m_maincpu->set_addrmap(AS_PROGRAM, &compucolor2_state::compucolor2_mem); + m_maincpu->set_addrmap(AS_IO, &compucolor2_state::compucolor2_io); + m_maincpu->set_irq_acknowledge_callback(FUNC(compucolor2_state::int_ack)); + + // video hardware + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); + screen.set_raw(XTAL(17'971'200)/2, 93*6, 0, 64*6, 268, 0, 256); + screen.set_screen_update(FUNC(compucolor2_state::screen_update)); + + PALETTE(config, m_palette, palette_device::RGB_3BIT); + + CRT5027(config, m_vtac, XTAL(17'971'200)/2/6); + m_vtac->set_char_width(6); + m_vtac->vsyn_callback().set("blink", FUNC(ripple_counter_device::clock_w)); + m_vtac->set_screen("screen"); + + ripple_counter_device &blink(RIPPLE_COUNTER(config, "blink")); // 74LS393 at UG10 + blink.set_stages(8); + blink.count_out_cb().set(m_mioc, FUNC(tms5501_device::sens_w)).bit(4); + + // devices + TMS5501(config, m_mioc, XTAL(17'971'200)/9); + m_mioc->int_callback().set_inputline(I8080_TAG, I8085_INTR_LINE); + m_mioc->xmt_callback().set(FUNC(compucolor2_state::xmt_w)); + m_mioc->xi_callback().set(FUNC(compucolor2_state::xi_r)); + m_mioc->xo_callback().set(FUNC(compucolor2_state::xo_w)); + + RS232_PORT(config, m_rs232, default_rs232_devices, nullptr); + m_rs232->rxd_handler().set(m_mioc, FUNC(tms5501_device::rcv_w)); + + COMPUCOLOR_FLOPPY_PORT(config, m_floppy0, compucolor_floppy_port_devices, "floppy"); + m_floppy0->rxd_handler().set(m_mioc, FUNC(tms5501_device::rcv_w)); + + COMPUCOLOR_FLOPPY_PORT(config, m_floppy1, compucolor_floppy_port_devices, nullptr); + m_floppy1->rxd_handler().set(m_mioc, FUNC(tms5501_device::rcv_w)); + + // internal ram + RAM(config, RAM_TAG).set_default_size("32K").set_extra_options("8K,16K"); + + // software list + SOFTWARE_LIST(config, "flop_list").set_original("compclr2_flop"); +} + +ROM_START( compclr2 ) + ROM_REGION( 0x4000, I8080_TAG, 0 ) + ROM_SYSTEM_BIOS( 0, "678", "v6.78" ) + ROMX_LOAD( "v678.rom", 0x0000, 0x4000, BAD_DUMP CRC(5e559469) SHA1(fe308774aae1294c852fe24017e58d892d880cd3), ROM_BIOS(0) ) + ROM_SYSTEM_BIOS( 1, "879", "v8.79" ) + ROMX_LOAD( "v879.rom", 0x0000, 0x4000, BAD_DUMP CRC(4de8e652) SHA1(e5c55da3ac893b8a5a99c8795af3ca72b1645f3f), ROM_BIOS(1) ) + + ROM_REGION( 0x800, "chargen", 0 ) + ROM_LOAD( "chargen.uf6", 0x000, 0x400, BAD_DUMP CRC(7eef135a) SHA1(be488ef32f54c6e5f551fb84ab12b881aef72dd9) ) + ROM_LOAD( "chargen.uf7", 0x400, 0x400, BAD_DUMP CRC(2bee7cf6) SHA1(808e0fc6f2332b4297de190eafcf84668703e2f4) ) + + ROM_REGION( 0x20, "ua1", 0 ) + ROM_LOAD( "82s123.ua1", 0x00, 0x20, BAD_DUMP CRC(27ae54bc) SHA1(ccb056fbc1ec2132f2602217af64d77237494afb) ) // I/O PROM + + ROM_REGION( 0x20, "proms", 0 ) + ROM_LOAD( "82s129.ue2", 0x00, 0x20, NO_DUMP ) // Address Decoder/Timer for RAM + ROM_LOAD( "82s129.uf3", 0x00, 0x20, NO_DUMP ) // System Decoder + ROM_LOAD( "82s123.ub3", 0x00, 0x20, NO_DUMP ) // ROM/PROM Decoder + ROM_LOAD( "82s129.uf8", 0x00, 0x20, NO_DUMP ) // CPU & Horizontal Decoder + ROM_LOAD( "82s129.ug9", 0x00, 0x20, NO_DUMP ) // Scan Decoder + ROM_LOAD( "82s129.ug5", 0x00, 0x20, NO_DUMP ) // Color PROM +ROM_END + +} // anonymous namespace + + +COMP( 1977, compclr2, 0, 0, compucolor2, compucolor2, compucolor2_state, empty_init, "Intelligent Systems Corporation", "Compucolor II", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW ) |