// license:BSD-3-Clause // copyright-holders:Robbbert /******************************************************************************************* Okeah-240 (Ocean-240). 2011-12-28 Skeleton driver. Info from EMU80: intctl : K580wn59 irq[0]=kbd.irq2 irq[1]=kbd.irq irq[4]=tim.out[0] ppa40 : K580ww55 portA=kbd.pressed.mask portB[2]=cas.playback portB[5]=kbd.key[58] portB[6]=kbd.key[59] portC[0-3]=kbd.pressed.row portC[4]=kbd.ack ppaC0 : K580ww55 portA=vid.scroll.y portB[0-3]=mem.frame[0].page portB[1-3]=mem.frame[1].page portB[4-5]=mm.page portC=vid.scroll.x If you leave out the CPM80 roms, the machine will start up in a machine-language monitor. Okean240: MONITOR 240/7 known commands: A ? B ? D dump F fill G go L load (via uart) M move R ? S substitute W ? X registers Okean240a: Turbo MONITOR by Alex Z. There are several emulation bugs noticed. Known commands: H hex arithmetic J Jamp (set address?) M move P ? (locks up) R read W write tab switches between the hex and ascii sides ^C refresh display NOTE ABOUT THE TEST ROM (okean240t): - You need to press a key every so often, or hold down Insert. ToDo: - Find out if any unconnected keyboard entries are real keys - Arrow keys (used in Turbo Monitor) - Colours? - Sound? (perhaps port E4 bit 3) - Floppy disks and devices - Cassette? - Add memory banking (perhaps port C1) - 80 column mode (used in Turbo Monitor) Keyboard: - okean240 - external ascii keyboard - okean240a - internal keyboard - okean240t - serial keyboard & screen **********************************************************************************************/ #include "emu.h" #include "bus/rs232/rs232.h" #include "cpu/i8085/i8085.h" #include "machine/i8251.h" #include "machine/i8255.h" #include "machine/keyboard.h" #include "machine/pic8259.h" #include "machine/pit8253.h" #include "machine/timer.h" #include "screen.h" #include "emupal.h" namespace { class okean240_state : public driver_device { public: okean240_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_p_videoram(*this, "videoram") , m_io_keyboard(*this, "X%d", 0U) , m_io_modifiers(*this, "MODIFIERS") , m_maincpu(*this, "maincpu") , m_rom(*this, "maincpu") , m_ram(*this, "mainram") , m_ppikbd(*this, "ppikbd") , m_pic(*this, "pic") { } void okean240a(machine_config &config); void okean240t(machine_config &config); void okean240(machine_config &config); private: u8 okean240_port40_r(); u8 okean240_port41_r(); void okean240_port42_w(u8 data); u8 okean240a_port40_r(); u8 okean240a_port41_r(); u8 okean240a_port42_r(); void okean240_porte2_w(u8 data); void kbd_put(u8 data); u32 screen_update_okean240(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); void okean240_io(address_map &map); void okean240_mem(address_map &map); virtual void machine_start() override; virtual void machine_reset() override; TIMER_DEVICE_CALLBACK_MEMBER(timer_k); u8 m_term_data = 0U; u8 m_j = 0U; u8 m_scroll = 0U; u8 m_tog = 0U; bool m_key_pressed = false; u8 m_kbd_row = 0U; required_shared_ptr m_p_videoram; optional_ioport_array<11> m_io_keyboard; optional_ioport m_io_modifiers; memory_passthrough_handler m_rom_shadow_tap; required_device m_maincpu; required_region_ptr m_rom; required_shared_ptr m_ram; required_device m_ppikbd; required_device m_pic; }; // okean240/t: process ascii keyboard void okean240_state::kbd_put(u8 data) { m_term_data = data; m_pic->ir1_w(1); } // okean240/t: port 40 (get ascii key) u8 okean240_state::okean240_port40_r() { u8 ret = m_term_data; m_term_data = 0; m_pic->ir1_w(0); return ret; } // okean240t: port 41 bit 1 (test rom status bit) @E0DB, E0E2 u8 okean240_state::okean240_port41_r() { m_tog ^= 2; return m_tog; } // okean240a keyboard routines TIMER_DEVICE_CALLBACK_MEMBER( okean240_state::timer_k ) { if (m_key_pressed) return; for (u8 i = 0; i < 11; i++) { if (m_io_keyboard[i]->read()) { m_key_pressed = true; m_kbd_row = i; m_pic->ir1_w(1); return; } } } // port 40 (get a single key press) u8 okean240_state::okean240a_port40_r() { u8 j = m_io_keyboard[m_kbd_row]->read(); if (j) { if (j==m_j) return 0; m_j=j; return j; } m_j=0; return 0; } // port 41 bits 6&7 (modifier keys) u8 okean240_state::okean240a_port41_r() { return m_io_modifiers->read(); } // port 42 (get a row) u8 okean240_state::okean240a_port42_r() { return m_kbd_row; } // This is a keyboard acknowledge pulse, it goes high then // straightaway low, if reading port 40 indicates a key is pressed. // okean240: data bit 7 // okean240a: data bit 4 void okean240_state::okean240_port42_w(u8 data) { m_pic->ir1_w(0); m_key_pressed = false; } void okean240_state::okean240_porte2_w(u8 data) { m_pic->ir4_w(!BIT(data, 3)); } void okean240_state::okean240_mem(address_map &map) { map.unmap_value_high(); map(0x0000, 0x3fff).ram().share("mainram"); map(0x4000, 0x7fff).ram().share("videoram"); map(0x8000, 0xbfff).ram(); map(0xc000, 0xffff).rom().region("maincpu", 0); } void okean240_state::okean240_io(address_map &map) { map.global_mask(0xff); map(0x20, 0x25).nopw(); map(0x40, 0x43).rw(m_ppikbd, FUNC(i8255_device::read), FUNC(i8255_device::write)); map(0x60, 0x63).rw("pit", FUNC(pit8253_device::read), FUNC(pit8253_device::write)); map(0x80, 0x81).rw(m_pic, FUNC(pic8259_device::read), FUNC(pic8259_device::write)); map(0xa0, 0xa1).rw("uart", FUNC(i8251_device::read), FUNC(i8251_device::write)); map(0xc0, 0xc3).rw("ppic", FUNC(i8255_device::read), FUNC(i8255_device::write)); map(0xe0, 0xe3).rw("ppie", FUNC(i8255_device::read), FUNC(i8255_device::write)); // map(0x00, 0x1f)=ppa00.data // map(0x20, 0x23)=dsk.data // map(0x24, 0x24)=dsk.wait // map(0x25, 0x25)=dskctl.data // map(0x40, 0x5f)=ppa40.data // map(0x60, 0x7f)=tim.data // map(0x80, 0x81)=intctl.data // map(0xa0, 0xa1)=comport.data // map(0xc0, 0xdf)=ppaC0.data // map(0xe0, 0xff)=ppaE0.data } /* Input ports */ static INPUT_PORTS_START( okean240 ) INPUT_PORTS_END static INPUT_PORTS_START( okean240a ) PORT_START("X0") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED) // comma PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED) // minus PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED) // null PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_UNUSED) // null PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED) // null PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("num7") PORT_CODE(KEYCODE_7_PAD) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("num8") PORT_CODE(KEYCODE_8_PAD) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("num9") PORT_CODE(KEYCODE_9_PAD) PORT_START("X1") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Esc") PORT_CODE(KEYCODE_ESC) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Tab") PORT_CODE(KEYCODE_TAB) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED) // null PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_UNUSED) // null PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED) // null PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("num0") PORT_CODE(KEYCODE_0_PAD) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("numdel") PORT_CODE(KEYCODE_DEL_PAD) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("numenter") PORT_CODE(KEYCODE_ENTER_PAD) PORT_START("X2") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("@ `") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('@') PORT_CHAR('`') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED) // null PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("num1") PORT_CODE(KEYCODE_1_PAD) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("num2") PORT_CODE(KEYCODE_2_PAD) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("num3") PORT_CODE(KEYCODE_3_PAD) PORT_START("X3") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED) //9E PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1 !") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("^ ~") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('^') PORT_CHAR('~') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("num4") PORT_CODE(KEYCODE_4_PAD) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("num5") PORT_CODE(KEYCODE_5_PAD) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("num6") PORT_CODE(KEYCODE_6_PAD) PORT_START("X4") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED) //81 PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2 \"") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED) // plus PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED) //7F PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) //03 PORT_START("X5") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED) //86 PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3 #") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Backspace") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED) //99 PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED) //8B PORT_START("X6") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4 $") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED) //84 PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Enter") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("/ ?") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') PORT_START("X7") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED) //92 prints # and line feed PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5 %") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED) //98 PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED) //85 cr and line feed PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("_") PORT_CODE(KEYCODE_END) PORT_START("X8") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED) //83 cancel input PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6 &") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(". >") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(": *") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*') PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("- =") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=') PORT_START("X9") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7 '") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("[ {") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED) //93 PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("\\ |") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_START("X10") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8 (") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("] }") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("; +") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(", <") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9 )") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') PORT_START("MODIFIERS") PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) INPUT_PORTS_END void okean240_state::machine_start() { save_item(NAME(m_term_data)); save_item(NAME(m_j)); save_item(NAME(m_scroll)); save_item(NAME(m_tog)); save_item(NAME(m_key_pressed)); save_item(NAME(m_kbd_row)); } void okean240_state::machine_reset() { m_term_data = 0; m_j = 0; m_scroll = 0; m_key_pressed = false; address_space &program = m_maincpu->space(AS_PROGRAM); program.install_rom(0x0000, 0x07ff, m_rom+0x2000); // do it here for F3 m_rom_shadow_tap.remove(); m_rom_shadow_tap = program.install_read_tap( 0xe000, 0xe7ff, "rom_shadow_r", [this] (offs_t offset, u8 &data, u8 mem_mask) { if (!machine().side_effects_disabled()) { // delete this tap m_rom_shadow_tap.remove(); // reinstall RAM over the ROM shadow m_maincpu->space(AS_PROGRAM).install_ram(0x0000, 0x07ff, m_ram); } }, &m_rom_shadow_tap); } u32 okean240_state::screen_update_okean240(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { for (u16 y = 0; y < 256; y++) { u8 const ma = y + m_scroll; // ma must be 8-bit u16 *p = &bitmap.pix(y); for (u16 x = 0; x < 0x4000; x+=0x200) { u8 const gfx = m_p_videoram[x|ma] | m_p_videoram[x|ma|0x100]; /* Display a scanline of a character */ *p++ = BIT(gfx, 0); *p++ = BIT(gfx, 1); *p++ = BIT(gfx, 2); *p++ = BIT(gfx, 3); *p++ = BIT(gfx, 4); *p++ = BIT(gfx, 5); *p++ = BIT(gfx, 6); *p++ = BIT(gfx, 7); } } return 0; } /* F4 Character Displayer */ static const gfx_layout okean240_charlayout = { 8, 7, /* 8 x 7 characters */ 160, /* 160 characters */ 1, /* 1 bits per pixel */ { 0 }, /* no bitplanes */ /* x offsets */ { 7, 6, 5, 4, 3, 2, 1, 0 }, /* y offsets */ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8 }, 8*7 /* every char takes 7 bytes */ }; static GFXDECODE_START( gfx_okean240 ) GFXDECODE_ENTRY( "maincpu", 0x2c08, okean240_charlayout, 0, 1 ) GFXDECODE_END static GFXDECODE_START( gfx_okean240a ) GFXDECODE_ENTRY( "maincpu", 0x2f63, okean240_charlayout, 0, 1 ) GFXDECODE_END void okean240_state::okean240t(machine_config &config) { /* basic machine hardware */ I8080(config, m_maincpu, XTAL(12'000'000) / 6); m_maincpu->set_addrmap(AS_PROGRAM, &okean240_state::okean240_mem); m_maincpu->set_addrmap(AS_IO, &okean240_state::okean240_io); m_maincpu->in_inta_func().set("pic", FUNC(pic8259_device::acknowledge)); i8251_device &uart(I8251(config, "uart", 0)); uart.txd_handler().set("rs232", FUNC(rs232_port_device::write_txd)); uart.dtr_handler().set("rs232", FUNC(rs232_port_device::write_dtr)); uart.rts_handler().set("rs232", FUNC(rs232_port_device::write_rts)); rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, "terminal")); rs232.rxd_handler().set("uart", FUNC(i8251_device::write_rxd)); rs232.dsr_handler().set("uart", FUNC(i8251_device::write_dsr)); rs232.cts_handler().set("uart", FUNC(i8251_device::write_cts)); I8255(config, m_ppikbd); m_ppikbd->in_pa_callback().set(FUNC(okean240_state::okean240_port40_r)); m_ppikbd->in_pb_callback().set(FUNC(okean240_state::okean240_port41_r)); m_ppikbd->out_pc_callback().set(FUNC(okean240_state::okean240_port42_w)); i8255_device &ppic(I8255(config, "ppic")); ppic.out_pa_callback().set([this] (u8 data) { m_scroll = data; }); i8255_device &ppie(I8255(config, "ppie")); ppie.out_pc_callback().set(FUNC(okean240_state::okean240_porte2_w)); pit8253_device &pit(PIT8253(config, "pit", 0)); pit.set_clk<1>(3072000); // artificial rate pit.out_handler<1>().set("uart", FUNC(i8251_device::write_txc)); pit.out_handler<1>().append("uart", FUNC(i8251_device::write_rxc)); PIC8259(config, m_pic, 0); m_pic->out_int_callback().set_inputline(m_maincpu, 0); /* video hardware */ screen_device &screen1(SCREEN(config, "screen1", SCREEN_TYPE_RASTER)); screen1.set_refresh_hz(50); screen1.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */ screen1.set_size(256, 256); screen1.set_visarea(0, 255, 0, 255); screen1.set_screen_update(FUNC(okean240_state::screen_update_okean240)); screen1.set_palette("palette"); PALETTE(config, "palette", palette_device::MONOCHROME); } void okean240_state::okean240a(machine_config &config) { okean240t(config); GFXDECODE(config, "gfxdecode", "palette", gfx_okean240a); subdevice("rs232")->set_default_option(nullptr); // not used for keyboard m_ppikbd->in_pa_callback().set(FUNC(okean240_state::okean240a_port40_r)); m_ppikbd->in_pb_callback().set(FUNC(okean240_state::okean240a_port41_r)); m_ppikbd->in_pc_callback().set(FUNC(okean240_state::okean240a_port42_r)); subdevice("pit")->set_clk<1>(1536000); // artificial rate TIMER(config, "timer_k").configure_periodic(FUNC(okean240_state::timer_k), attotime::from_hz(300)); // keyb scan } void okean240_state::okean240(machine_config &config) { okean240t(config); GFXDECODE(config, "gfxdecode", "palette", gfx_okean240); subdevice("rs232")->set_default_option(nullptr); // not used for keyboard generic_keyboard_device &keyboard(GENERIC_KEYBOARD(config, "keyboard", 0)); keyboard.set_keyboard_callback(FUNC(okean240_state::kbd_put)); } /* ROM definition */ ROM_START( okean240 ) ROM_REGION( 0x4000, "maincpu", 0 ) ROM_LOAD( "monitor.bin", 0x2000, 0x2000, CRC(587799bc) SHA1(1f677afa96722ca4ed2643eaca243548845fc854) ) ROM_LOAD( "cpm80.bin", 0x0000, 0x2000, CRC(7378e4f9) SHA1(c3c06c6f2e953546452ca6f82140a79d0e4953b4) ) ROM_END ROM_START( okean240a ) ROM_REGION( 0x4000, "maincpu", 0 ) ROM_LOAD( "fddmonitor.bin", 0x2000, 0x2000, CRC(bcac5ca0) SHA1(602ab824704d3d5d07b3787f6227ff903c33c9d5) ) ROM_LOAD( "fddcpm80.bin", 0x0000, 0x2000, CRC(b89a7e16) SHA1(b8f937c04f430be18e48f296ed3ef37194171204) ) ROM_END ROM_START( okean240t ) ROM_REGION( 0x4000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "test.bin", 0x2000, 0x0800, CRC(e9e2b7b9) SHA1(e4e0b6984a2514b6ba3e97500d487ea1a68b7577) ) ROM_END } // anonymous namespace /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1986, okean240, 0, 0, okean240, okean240, okean240_state, empty_init, "", "Okeah-240", MACHINE_NOT_WORKING | MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE ) COMP( 1986, okean240a, okean240, 0, okean240a, okean240a, okean240_state, empty_init, "", "Ocean-240 with FDD", MACHINE_NOT_WORKING | MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE ) COMP( 1986, okean240t, okean240, 0, okean240t, okean240, okean240_state, empty_init, "", "Ocean-240 Test ROM", MACHINE_NOT_WORKING | MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE )