// license:BSD-3-Clause // copyright-holders:Robbbert /*************************************************************************** BEEHIVE DM3270 25/05/2009 Skeleton driver [Robbbert] This is a conventional computer terminal using a serial link. Could be a clone of the IBM3276-2. The character gen rom is not dumped. Using the one from 'c10' for the moment. Screen goes crazy during the memory test, just ignore it. System freezes if ^G pressed. 25/04/2011 Added partial keyboard. 26/06/2011 Added modifier keys. ****************************************************************************/ #include "emu.h" #include "cpu/i8085/i8085.h" #include "emupal.h" #include "screen.h" class beehive_state : public driver_device { public: beehive_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_p_videoram(*this, "videoram") , m_p_chargen(*this, "chargen") { } DECLARE_READ8_MEMBER(beehive_60_r); DECLARE_WRITE8_MEMBER(beehive_62_w); uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); void beehive(machine_config &config); void beehive_io(address_map &map); void beehive_mem(address_map &map); private: required_device m_maincpu; required_shared_ptr m_p_videoram; required_region_ptr m_p_chargen; uint8_t m_keyline; virtual void machine_reset() override; }; READ8_MEMBER(beehive_state::beehive_60_r) { if (BIT(m_keyline, 4)) { char kbdrow[6]; sprintf(kbdrow,"X%d", m_keyline&15); return ioport(kbdrow)->read(); } else return 0xff; } WRITE8_MEMBER(beehive_state::beehive_62_w) { m_keyline = data; } void beehive_state::beehive_mem(address_map &map) { map.unmap_value_high(); map(0x0000, 0x17ff).rom(); map(0x8000, 0x8fff).ram().share("videoram"); } void beehive_state::beehive_io(address_map &map) { map.global_mask(0xff); map.unmap_value_high(); map(0x11, 0x11).portr("DIPS"); map(0x60, 0x60).r(FUNC(beehive_state::beehive_60_r)); map(0x61, 0x61).portr("MODIFIERS"); map(0x62, 0x62).w(FUNC(beehive_state::beehive_62_w)); } /* Input ports */ static INPUT_PORTS_START( beehive ) PORT_START("X0") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_START("X1") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_START("X2") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_START("X3") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("`") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`') PORT_CHAR('~') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("[") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR(']') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\\") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("'") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("{") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('{') PORT_CHAR('}') PORT_START("X4") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("<") PORT_CODE(KEYCODE_PGDN) PORT_CHAR('<') PORT_CHAR('>') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(",") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_START("X5") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("=") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+') PORT_START("X6") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7pad") PORT_CODE(KEYCODE_7_PAD) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8pad") PORT_CODE(KEYCODE_8_PAD) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9pad") PORT_CODE(KEYCODE_9_PAD) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("X7") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) // Does a HOME PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Home") PORT_CODE(KEYCODE_HOME) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4pad") PORT_CODE(KEYCODE_4_PAD) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5pad") PORT_CODE(KEYCODE_5_PAD) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6pad") PORT_CODE(KEYCODE_6_PAD) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Backspace") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("X8") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1pad") PORT_CODE(KEYCODE_1_PAD) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2pad") PORT_CODE(KEYCODE_2_PAD) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3pad") PORT_CODE(KEYCODE_3_PAD) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0pad") PORT_CODE(KEYCODE_0_PAD) PORT_START("X9") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(".pad") PORT_CODE(KEYCODE_DEL_PAD) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("-pad") PORT_CODE(KEYCODE_MINUS_PAD) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left") PORT_CODE(KEYCODE_LEFT) PORT_START("X10") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right") PORT_CODE(KEYCODE_RIGHT) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("XMIT") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) // This row is scanned but nothing happens PORT_START("X11") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) // These probably not exist PORT_START("X12") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("X13") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("X14") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("X15") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("MODIFIERS") PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Capslock") PORT_CODE(KEYCODE_CAPSLOCK) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LCtrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RCtrl") PORT_CODE(KEYCODE_RCONTROL) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LShift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RShift") PORT_CODE(KEYCODE_RSHIFT) PORT_BIT(0x83, IP_ACTIVE_LOW, IPT_UNUSED) // assumed to be dipswitches, purpose unknown, see code from 12D PORT_START("DIPS") PORT_DIPNAME( 0x01, 0x01, "Switch A") PORT_DIPLOCATION("SW1:1") PORT_DIPSETTING( 0x01, DEF_STR(Off)) PORT_DIPSETTING( 0x00, DEF_STR(On)) PORT_DIPNAME( 0x02, 0x02, "Switch B") PORT_DIPLOCATION("SW1:2") PORT_DIPSETTING( 0x02, DEF_STR(Off)) PORT_DIPSETTING( 0x00, DEF_STR(On)) PORT_BIT(0x3c, 0x2c, IPT_UNUSED) // this is required to sync keyboard and A-LOCK indicator PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) // unused PORT_DIPNAME( 0x80, 0x80, "Switch C") PORT_DIPLOCATION("SW1:3") PORT_DIPSETTING( 0x80, DEF_STR(Off)) PORT_DIPSETTING( 0x00, DEF_STR(On)) INPUT_PORTS_END void beehive_state::machine_reset() { } /* This system appears to have inline attribute bytes of unknown meaning. Currently they are ignored. */ uint32_t beehive_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { uint16_t cursor_pos = (m_p_videoram[0xcaf] | (m_p_videoram[0xcb0] << 8)) & 0xfff; uint16_t p_linelist; uint8_t line_length; uint8_t y,ra,chr,gfx,inv; uint16_t sy=0,ma,x; for (y = 0; y < 25; y++) { p_linelist = 0x1af + y*3; line_length = m_p_videoram[p_linelist]+1; ma = (m_p_videoram[p_linelist+1] | (m_p_videoram[p_linelist+2] << 8)) & 0xfff; for (ra = 0; ra < 10; ra++) { uint16_t *p = &bitmap.pix16(sy++); uint8_t chars = 0; for (x = ma; x < ma + line_length; x++) { inv = gfx = chr = 0; if (y == 24) inv=0xff; // status line reverse video if (ra < 9) { if (x == cursor_pos) inv=0xff; // show cursor chr = m_p_videoram[x]; // get char in videoram gfx = m_p_chargen[(chr<<4) | ra ] ^ inv; // get dot pattern in chargen } if ((chars < 80) && (!BIT(chr, 7))) // ignore attribute bytes { chars++; /* Display a scanline of a character */ *p++ = BIT(gfx, 7); *p++ = BIT(gfx, 6); *p++ = BIT(gfx, 5); *p++ = BIT(gfx, 4); *p++ = BIT(gfx, 3); *p++ = BIT(gfx, 2); *p++ = BIT(gfx, 1); *p++ = BIT(gfx, 0); } } } } return 0; } MACHINE_CONFIG_START(beehive_state::beehive) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu",I8085A, XTAL(4'000'000)) MCFG_DEVICE_PROGRAM_MAP(beehive_mem) MCFG_DEVICE_IO_MAP(beehive_io) /* video hardware */ MCFG_SCREEN_ADD_MONOCHROME("screen", RASTER, rgb_t::green()) MCFG_SCREEN_REFRESH_RATE(50) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_UPDATE_DRIVER(beehive_state, screen_update) MCFG_SCREEN_SIZE(640, 250) MCFG_SCREEN_VISIBLE_AREA(0, 639, 0, 249) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD_MONOCHROME("palette") MACHINE_CONFIG_END /* ROM definition */ ROM_START( beehive ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "dm3270-1.rom", 0x0000, 0x0800, CRC(781bde32) SHA1(a3fe25baadd2bfc2b1791f509bb0f4960281ee32) ) ROM_LOAD( "dm3270-2.rom", 0x0800, 0x0800, CRC(4d3476b7) SHA1(627ad42029ca6c8574cda8134d047d20515baf53) ) ROM_LOAD( "dm3270-3.rom", 0x1000, 0x0800, CRC(dbf15833) SHA1(ae93117260a259236c50885c5cecead2aad9b3c4) ) /* character generator not dumped, using the one from 'c10' for now */ ROM_REGION( 0x2000, "chargen", 0 ) ROM_LOAD( "c10_char.bin", 0x0000, 0x2000, BAD_DUMP CRC(cb530b6f) SHA1(95590bbb433db9c4317f535723b29516b9b9fcbf)) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1982, beehive, 0, 0, beehive, beehive, beehive_state, empty_init, "BeeHive", "DM3270", MACHINE_NO_SOUND)