diff options
Diffstat (limited to 'src/mame/drivers/okean240.cpp')
-rw-r--r-- | src/mame/drivers/okean240.cpp | 538 |
1 files changed, 538 insertions, 0 deletions
diff --git a/src/mame/drivers/okean240.cpp b/src/mame/drivers/okean240.cpp new file mode 100644 index 00000000000..8fc87a52848 --- /dev/null +++ b/src/mame/drivers/okean240.cpp @@ -0,0 +1,538 @@ +// license:BSD-3-Clause +// copyright-holders:Robbbert +/*************************************************************************** + + Okeah-240 (Ocean-240) + + 28/12/2011 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 + + +NOTE ABOUT THE TEST ROM (okean240t): +- You need to press a key every so often. + + +ToDo: +- Add devices +- Find out if any unconnected keyboard entries are real keys +- Colours? +- Sound? (perhaps port E4 bit 3) +- Add disks +- Cassette? +- Add memory banking (perhaps port C1) + +Usage of terminal: +- okean240 - the keyboard +- okean240a - not used +- okean240t - the keyboard & screen + +****************************************************************************/ + +#include "emu.h" +#include "cpu/i8085/i8085.h" +#include "machine/keyboard.h" +#include "machine/terminal.h" + +#define KEYBOARD_TAG "keyboard" +#define TERMINAL_TAG "terminal" + +class okean240_state : public driver_device +{ +public: + enum + { + TIMER_OKEAN_BOOT + }; + + okean240_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag), + m_term_data(0), + m_j(0), + m_scroll(0), + m_p_videoram(*this, "p_videoram"), + m_io_modifiers(*this, "MODIFIERS"), + m_maincpu(*this, "maincpu") + { + } + + DECLARE_READ8_MEMBER(okean240_kbd_status_r); + DECLARE_READ8_MEMBER(okean240a_kbd_status_r); + DECLARE_READ8_MEMBER(term_status_r); + DECLARE_READ8_MEMBER(term_r); + DECLARE_READ8_MEMBER(okean240_keyboard_r); + DECLARE_WRITE8_MEMBER(okean240_keyboard_w); + DECLARE_READ8_MEMBER(okean240a_keyboard_r); + DECLARE_WRITE8_MEMBER(kbd_put); + DECLARE_WRITE8_MEMBER(scroll_w); + UINT8 m_term_data; + UINT8 m_j; + UINT8 m_scroll; + required_shared_ptr<UINT8> m_p_videoram; + virtual void machine_start(); + virtual void machine_reset(); + virtual void video_start(); + DECLARE_DRIVER_INIT(okean240); + UINT32 screen_update_okean240(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); + +protected: + optional_ioport m_io_modifiers; + ioport_port *m_io_port[11]; + required_device<cpu_device> m_maincpu; + + virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); +}; + +// okean240 requires bit 4 to change +READ8_MEMBER( okean240_state::okean240_kbd_status_r ) +{ + if (m_term_data) + return (machine().rand() & 0x10) | 2; + else + return machine().rand() & 0x10; +} + +// see if a key is pressed and indicate status +READ8_MEMBER( okean240_state::okean240a_kbd_status_r ) +{ + UINT8 i,j; + + for (i = 0; i < 11; i++) + { + j = m_io_port[i]->read(); + if (j) + return (machine().rand() & 0x10) | 2; + } + m_j = 0; + return machine().rand() & 0x10; +} + +// for test rom +READ8_MEMBER( okean240_state::term_status_r ) +{ + return (m_term_data) ? 3 : 1; +} + +READ8_MEMBER( okean240_state::okean240_keyboard_r ) +{ + if (offset == 0) // port 40 (get ascii key value) + return term_r(space, offset); + else + if (offset == 1) // port 41 bit 1 (test rom status bit) + { + return (machine().rand() & 2); + } + else // port 42 (not used) + return 0; +} + +READ8_MEMBER( okean240_state::okean240a_keyboard_r ) +{ + UINT8 i,j; + + if (offset == 0) // port 40 (get a column) + { + for (i = 0; i < 11; i++) + { + j = m_io_port[i]->read(); + if (j) + { + if (j==m_j) return 0; + m_j=j; + return j; + } + } + m_j=0; + return 0; + } + else + if (offset == 1) // port 41 bits 6&7 (modifier keys), and bit 1 (test rom status bit) + { + return (machine().rand() & 2) | m_io_modifiers->read(); + } + else // port 42 (get a row) + { + for (i = 0; i < 11; i++) + { + if (m_io_port[i]->read() ) + return i; + } + } + return 0; +} + +// This is a keyboard acknowledge pulse, it goes high then +// straightaway low, if reading port 40 indicates a key is pressed. +WRITE8_MEMBER( okean240_state::okean240_keyboard_w ) +{ +// okean240: port 42 bit 7 +// okean240a: port 42 bit 4 +} + +// for test rom +READ8_MEMBER( okean240_state::term_r ) +{ + UINT8 ret = m_term_data; + m_term_data = 0; + return ret; +} + +WRITE8_MEMBER( okean240_state::scroll_w ) +{ + m_scroll = data; +} + +static ADDRESS_MAP_START(okean240_mem, AS_PROGRAM, 8, okean240_state) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x07ff) AM_RAMBANK("boot") + AM_RANGE(0x0800, 0x3fff) AM_RAM + AM_RANGE(0x4000, 0x7fff) AM_RAM AM_SHARE("p_videoram") + AM_RANGE(0x8000, 0xbfff) AM_RAM + AM_RANGE(0xc000, 0xffff) AM_ROM +ADDRESS_MAP_END + +static ADDRESS_MAP_START(okean240_io, AS_IO, 8, okean240_state) + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0x40, 0x42) AM_READWRITE(okean240_keyboard_r,okean240_keyboard_w) + AM_RANGE(0x80, 0x80) AM_READ(okean240_kbd_status_r) + AM_RANGE(0xa0, 0xa0) AM_READ(term_r) + AM_RANGE(0xa1, 0xa1) AM_READ(term_status_r) + AM_RANGE(0xc0, 0xc0) AM_WRITE(scroll_w) +ADDRESS_MAP_END + +static ADDRESS_MAP_START(okean240a_io, AS_IO, 8, okean240_state) + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0x40, 0x42) AM_READWRITE(okean240a_keyboard_r,okean240_keyboard_w) + AM_RANGE(0x80, 0x80) AM_READ(okean240a_kbd_status_r) + AM_RANGE(0xa0, 0xa0) AM_READ(term_r) + AM_RANGE(0xa1, 0xa1) AM_READ(term_status_r) + AM_RANGE(0xc0, 0xc0) AM_WRITE(scroll_w) + // AM_RANGE(0x00, 0x1f)=ppa00.data + // AM_RANGE(0x20, 0x23)=dsk.data + // AM_RANGE(0x24, 0x24)=dsk.wait + // AM_RANGE(0x25, 0x25)=dskctl.data + // AM_RANGE(0x40, 0x5f)=ppa40.data + // AM_RANGE(0x60, 0x7f)=tim.data + // AM_RANGE(0x80, 0x81)=intctl.data + // AM_RANGE(0xa0, 0xa1)=comport.data + // AM_RANGE(0xc0, 0xdf)=ppaC0.data + // AM_RANGE(0xe0, 0xff)=ppaE0.data +ADDRESS_MAP_END + +static ADDRESS_MAP_START(okean240t_io, AS_IO, 8, okean240_state) + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0x40, 0x42) AM_READWRITE(okean240_keyboard_r,okean240_keyboard_w) + AM_RANGE(0x80, 0x80) AM_READ(okean240_kbd_status_r) + AM_RANGE(0xa0, 0xa0) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write) + AM_RANGE(0xa0, 0xa0) AM_READ(term_r) + AM_RANGE(0xa1, 0xa1) AM_READ(term_status_r) + AM_RANGE(0xc0, 0xc0) AM_WRITE(scroll_w) +ADDRESS_MAP_END + +/* 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("XA") + 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::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) +{ + switch (id) + { + case TIMER_OKEAN_BOOT: + /* after the first 6 bytes have been read from ROM, switch the ram back in */ + membank("boot")->set_entry(0); + break; + default: + assert_always(FALSE, "Unknown id in okean240_state::device_timer"); + } +} + + +void okean240_state::machine_start() +{ + char kbdrow[6]; + + for (int i = 0; i < 11; i++) + { + sprintf(kbdrow,"X%X",i); + m_io_port[i] = ioport(kbdrow); + } +} + + +void okean240_state::machine_reset() +{ + timer_set(attotime::from_usec(10), TIMER_OKEAN_BOOT); + membank("boot")->set_entry(1); + m_term_data = 0; + m_j = 0; + m_scroll = 0; +} + +WRITE8_MEMBER( okean240_state::kbd_put ) +{ + m_term_data = data; +} + +DRIVER_INIT_MEMBER(okean240_state,okean240) +{ + UINT8 *RAM = memregion("maincpu")->base(); + membank("boot")->configure_entries(0, 2, &RAM[0x0000], 0xe000); +} + +void okean240_state::video_start() +{ +} + +UINT32 okean240_state::screen_update_okean240(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) +{ + UINT8 gfx,ma; // ma must be 8bit + UINT16 x,y; + + for (y = 0; y < 256; y++) + { + ma = y + m_scroll; + UINT16 *p = &bitmap.pix16(y); + + for (x = 0; x < 0x4000; x+=0x200) + { + 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( okean240 ) + GFXDECODE_ENTRY( "maincpu", 0xec08, okean240_charlayout, 0, 1 ) +GFXDECODE_END + +static GFXDECODE_START( okean240a ) + GFXDECODE_ENTRY( "maincpu", 0xef63, okean240_charlayout, 0, 1 ) +GFXDECODE_END + + +static MACHINE_CONFIG_START( okean240t, okean240_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu",I8080, XTAL_12MHz / 6) + MCFG_CPU_PROGRAM_MAP(okean240_mem) + MCFG_CPU_IO_MAP(okean240t_io) + + /* video hardware */ + MCFG_SCREEN_ADD("screen", RASTER) + MCFG_SCREEN_REFRESH_RATE(50) + MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ + MCFG_SCREEN_SIZE(256, 256) + MCFG_SCREEN_VISIBLE_AREA(0, 255, 0, 255) + MCFG_SCREEN_UPDATE_DRIVER(okean240_state, screen_update_okean240) + MCFG_SCREEN_PALETTE("palette") + + MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette") + + MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0) + MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(okean240_state, kbd_put)) +MACHINE_CONFIG_END + +static MACHINE_CONFIG_DERIVED( okean240a, okean240t ) + MCFG_CPU_MODIFY("maincpu") + MCFG_CPU_IO_MAP(okean240a_io) + MCFG_GFXDECODE_ADD("gfxdecode", "palette", okean240a) + MCFG_DEVICE_REMOVE(TERMINAL_TAG) + MCFG_DEVICE_ADD(KEYBOARD_TAG, GENERIC_KEYBOARD, 0) + MCFG_GENERIC_KEYBOARD_CB(WRITE8(okean240_state, kbd_put)) +MACHINE_CONFIG_END + +static MACHINE_CONFIG_DERIVED( okean240, okean240t ) + MCFG_CPU_MODIFY("maincpu") + MCFG_CPU_IO_MAP(okean240_io) + MCFG_GFXDECODE_ADD("gfxdecode", "palette", okean240) + MCFG_DEVICE_REMOVE(TERMINAL_TAG) + MCFG_DEVICE_ADD(KEYBOARD_TAG, GENERIC_KEYBOARD, 0) + MCFG_GENERIC_KEYBOARD_CB(WRITE8(okean240_state, kbd_put)) +MACHINE_CONFIG_END + +/* ROM definition */ +ROM_START( okean240 ) + ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_LOAD( "monitor.bin", 0xe000, 0x2000, CRC(587799bc) SHA1(1f677afa96722ca4ed2643eaca243548845fc854) ) + ROM_LOAD( "cpm80.bin", 0xc000, 0x2000, CRC(7378e4f9) SHA1(c3c06c6f2e953546452ca6f82140a79d0e4953b4) ) +ROM_END + +ROM_START( okean240a ) + ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_LOAD( "fddmonitor.bin", 0xe000, 0x2000, CRC(bcac5ca0) SHA1(602ab824704d3d5d07b3787f6227ff903c33c9d5) ) + ROM_LOAD( "fddcpm80.bin", 0xc000, 0x2000, CRC(b89a7e16) SHA1(b8f937c04f430be18e48f296ed3ef37194171204) ) +ROM_END + +ROM_START( okean240t ) + ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_LOAD( "test.bin", 0xe000, 0x0800, CRC(e9e2b7b9) SHA1(e4e0b6984a2514b6ba3e97500d487ea1a68b7577) ) +ROM_END + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ +COMP( 1986, okean240, 0, 0, okean240, okean240, okean240_state, okean240, "<unknown>", "Okeah-240", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) +COMP( 1986, okean240a, okean240,0, okean240a, okean240a, okean240_state, okean240, "<unknown>", "Ocean-240 with fdd", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) +COMP( 1986, okean240t, okean240,0, okean240t, okean240, okean240_state, okean240, "<unknown>", "Ocean-240 Test Rom", MACHINE_NO_SOUND) |