// license:BSD-3-Clause // copyright-holders:Wilbert Pol /*************************************************************************** /drivers/odyssey2.c Driver file to handle emulation of the Odyssey2. Minor update to "the voice" rom names, and add comment about the older revision of "the voice" - LN, 10/03/08 ***************************************************************************/ #include "emu.h" #include "cpu/mcs48/mcs48.h" #include "video/i8244.h" #include "machine/i8243.h" #include "video/ef9340_1.h" #include "bus/odyssey2/slot.h" #include "softlist.h" class odyssey2_state : public driver_device { public: odyssey2_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_i8244(*this, "i8244"), m_cart(*this, "cartslot"), m_keyboard(*this, "KEY"), m_joysticks(*this, "JOY") { } required_device m_maincpu; required_device m_i8244; required_device m_cart; UINT8 m_ram[256]; UINT8 m_p1; UINT8 m_p2; UINT8 m_lum; DECLARE_READ8_MEMBER(io_read); DECLARE_WRITE8_MEMBER(io_write); DECLARE_READ8_MEMBER(bus_read); DECLARE_WRITE8_MEMBER(bus_write); DECLARE_READ8_MEMBER(p1_read); DECLARE_WRITE8_MEMBER(p1_write); DECLARE_READ8_MEMBER(p2_read); DECLARE_WRITE8_MEMBER(p2_write); DECLARE_READ8_MEMBER(t1_read); DECLARE_DRIVER_INIT(odyssey2); virtual void machine_start() override; virtual void machine_reset() override; DECLARE_PALETTE_INIT(odyssey2); UINT32 screen_update_odyssey2(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); DECLARE_WRITE16_MEMBER(scanline_postprocess); protected: /* constants */ static const UINT8 P1_BANK_LO_BIT = 0x01; static const UINT8 P1_BANK_HI_BIT = 0x02; static const UINT8 P1_KEYBOARD_SCAN_ENABLE = 0x04; /* active low */ static const UINT8 P1_VDC_ENABLE = 0x08; /* active low */ static const UINT8 P1_EXT_RAM_ENABLE = 0x10; /* active low */ static const UINT8 P1_VPP_ENABLE = 0x20; /* active low */ static const UINT8 P1_VDC_COPY_MODE_ENABLE = 0x40; static const UINT8 P2_KEYBOARD_SELECT_MASK = 0x07; /* select row to scan */ required_ioport_array<6> m_keyboard; required_ioport_array<2> m_joysticks; }; class g7400_state : public odyssey2_state { public: g7400_state(const machine_config &mconfig, device_type type, const char *tag) : odyssey2_state(mconfig, type, tag) , m_i8243(*this, "i8243") , m_ef9340_1(*this, "ef9340_1") { } required_device m_i8243; required_device m_ef9340_1; DECLARE_PALETTE_INIT(g7400); virtual void machine_start() override; virtual void machine_reset() override; DECLARE_WRITE8_MEMBER(p2_write); DECLARE_READ8_MEMBER(io_read); DECLARE_WRITE8_MEMBER(io_write); DECLARE_WRITE8_MEMBER(i8243_port_w); DECLARE_WRITE16_MEMBER(scanline_postprocess); protected: UINT8 m_ic674_decode[8]; UINT8 m_ic678_decode[8]; }; static ADDRESS_MAP_START( odyssey2_mem , AS_PROGRAM, 8, odyssey2_state ) AM_RANGE(0x0000, 0x03ff) AM_ROM AM_RANGE(0x0400, 0x0bff) AM_DEVREAD("cartslot", o2_cart_slot_device, read_rom04) AM_RANGE(0x0c00, 0x0fff) AM_DEVREAD("cartslot", o2_cart_slot_device, read_rom0c) ADDRESS_MAP_END static ADDRESS_MAP_START( odyssey2_io , AS_IO, 8, odyssey2_state ) AM_RANGE(0x00, 0xff) AM_READWRITE(io_read, io_write) AM_RANGE(MCS48_PORT_P1, MCS48_PORT_P1) AM_READWRITE(p1_read, p1_write) AM_RANGE(MCS48_PORT_P2, MCS48_PORT_P2) AM_READWRITE(p2_read, p2_write) AM_RANGE(MCS48_PORT_BUS, MCS48_PORT_BUS) AM_READWRITE(bus_read, bus_write) AM_RANGE(MCS48_PORT_T0, MCS48_PORT_T0) AM_DEVREAD("cartslot", o2_cart_slot_device, t0_read) AM_RANGE(MCS48_PORT_T1, MCS48_PORT_T1) AM_READ(t1_read) ADDRESS_MAP_END static ADDRESS_MAP_START( g7400_io , AS_IO, 8, g7400_state ) AM_RANGE(0x00, 0xff) AM_READWRITE(io_read, io_write) AM_RANGE(MCS48_PORT_P1, MCS48_PORT_P1) AM_READWRITE(p1_read, p1_write) AM_RANGE(MCS48_PORT_P2, MCS48_PORT_P2) AM_READWRITE(p2_read, p2_write) AM_RANGE(MCS48_PORT_BUS, MCS48_PORT_BUS) AM_READWRITE(bus_read, bus_write) AM_RANGE(MCS48_PORT_T0, MCS48_PORT_T0) AM_DEVREAD("cartslot", o2_cart_slot_device, t0_read) AM_RANGE(MCS48_PORT_T1, MCS48_PORT_T1) AM_READ(t1_read) AM_RANGE(MCS48_PORT_PROG, MCS48_PORT_PROG) AM_DEVWRITE("i8243", i8243_device, i8243_prog_w); ADDRESS_MAP_END static INPUT_PORTS_START( odyssey2 ) PORT_START("KEY.0") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_START("KEY.1") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("?? :") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("?? $") PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('?') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_START("KEY.2") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR('+') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_START("KEY.3") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_START("KEY.4") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_START("KEY.5") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR('*') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH_PAD) PORT_CHAR('/') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(DEF_STR( Yes )) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(DEF_STR( No )) PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CLR") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ENT") PORT_CODE(KEYCODE_ENTER) PORT_CHAR('\r') PORT_START("JOY.0") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_PLAYER(1) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_PLAYER(1) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_PLAYER(1) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_PLAYER(1) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(1) PORT_BIT( 0xe0, 0xe0, IPT_UNUSED ) PORT_START("JOY.1") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_PLAYER(2) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_PLAYER(2) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_PLAYER(2) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_PLAYER(2) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(2) PORT_BIT( 0xe0, 0xe0, IPT_UNUSED ) INPUT_PORTS_END /* character sprite colors dark grey, red, green, yellow, blue, violet, light grey, white dark back / grid colors black, dark blue, dark green, light green, red, violet, yellow, light grey light back / grid colors black, blue, green, light green, red, violet, yellow, light grey */ const UINT8 odyssey2_colors[] = { /* Background,Grid Dim */ 0x00,0x00,0x00, /* Black */ // i r g b 0x1A,0x37,0xBE, /* Blue - Calibrated To Real VideoPac */ // i r g B 0x00,0x6D,0x07, /* Green - Calibrated To Real VideoPac */ // i r G b 0x2A,0xAA,0xBE, /* Blue-Green - Calibrated To Real VideoPac */ // i r G B 0x79,0x00,0x00, /* Red - Calibrated To Real VideoPac */ // i R g b 0x94,0x30,0x9F, /* Violet - Calibrated To Real VideoPac */ // i R g B 0x77,0x67,0x0B, /* Khaki - Calibrated To Real VideoPac */ // i R g B 0xCE,0xCE,0xCE, /* Lt Grey */ // i R G B /* Background,Grid Bright */ 0x67,0x67,0x67, /* Grey - Calibrated To Real VideoPac */ // I R g B 0x5C,0x80,0xF6, /* Lt Blue - Calibrated To Real VideoPac */ // I R g B 0x56,0xC4,0x69, /* Lt Green - Calibrated To Real VideoPac */ // I R g B 0x77,0xE6,0xEB, /* Lt Blue-Green - Calibrated To Real VideoPac */ // I R g b 0xC7,0x51,0x51, /* Lt Red - Calibrated To Real VideoPac */ // I R g b 0xDC,0x84,0xE8, /* Lt Violet - Calibrated To Real VideoPac */ // I R g B 0xC6,0xB8,0x6A, /* Lt Yellow - Calibrated To Real VideoPac */ // I R G b 0xFF,0xFF,0xFF, /* White */ // I R G B }; PALETTE_INIT_MEMBER(odyssey2_state, odyssey2) { for ( int i = 0; i < 16; i++ ) { palette.set_pen_color( i, odyssey2_colors[i*3], odyssey2_colors[i*3+1], odyssey2_colors[i*3+2] ); } } PALETTE_INIT_MEMBER(g7400_state, g7400) { const UINT8 g7400_colors[] = { 0x00,0x00,0x00, // Black 0x1A,0x37,0xBE, // Blue 0x00,0x6D,0x07, // Green 0x2A,0xAA,0xBE, // Blue-Green 0x79,0x00,0x00, // Red 0x94,0x30,0x9F, // Violet 0x77,0x67,0x0B, // Khaki 0xCE,0xCE,0xCE, // Lt Grey 0x67,0x67,0x67, // Grey 0x5C,0x80,0xF6, // Lt Blue 0x56,0xC4,0x69, // Lt Green 0x77,0xE6,0xEB, // Lt Blue-Green 0xC7,0x51,0x51, // Lt Red 0xDC,0x84,0xE8, // Lt Violet 0xC6,0xB8,0x6A, // Lt Yellow 0xff,0xff,0xff // White }; for ( int i = 0; i < 16; i++ ) { palette.set_pen_color( i, g7400_colors[i*3], g7400_colors[i*3+1], g7400_colors[i*3+2] ); } } DRIVER_INIT_MEMBER(odyssey2_state,odyssey2) { UINT8 *gfx = memregion("gfx1")->base(); for (int i = 0; i < 256; i++) { gfx[i] = i; /* TODO: Why i and not 0? */ m_ram[i] = 0; } } void odyssey2_state::machine_start() { save_pointer(NAME(m_ram),256); save_item(NAME(m_p1)); save_item(NAME(m_p2)); save_item(NAME(m_lum)); } void odyssey2_state::machine_reset() { m_lum = 0; /* jump to "last" bank, will work for all sizes due to being mirrored */ m_p1 = 0xff; m_p2 = 0xff; m_cart->write_bank(m_p1); } void g7400_state::machine_start() { odyssey2_state::machine_start(); save_pointer(NAME(m_ic674_decode),8); save_pointer(NAME(m_ic678_decode),8); } void g7400_state::machine_reset() { odyssey2_state::machine_reset(); for ( int i = 0; i < 8; i++ ) { m_ic674_decode[i] = 0; m_ic678_decode[i] = 0; } } /****** External RAM ******************************/ READ8_MEMBER(odyssey2_state::io_read) { if ((m_p1 & (P1_VDC_COPY_MODE_ENABLE | P1_VDC_ENABLE)) == 0) { return m_i8244->read(space, offset); } if (!(m_p1 & P1_EXT_RAM_ENABLE)) { return m_ram[offset]; } return 0; } WRITE8_MEMBER(odyssey2_state::io_write) { if ((m_p1 & (P1_EXT_RAM_ENABLE | P1_VDC_COPY_MODE_ENABLE)) == 0x00) { m_ram[offset] = data; if (offset & 0x80) { logerror("voice write %02X, data = %02X (p1 = %02X)\n", offset, data, m_p1); m_cart->io_write(space, offset, data); } } else if (!(m_p1 & P1_VDC_ENABLE)) { m_i8244->write(space, offset, data); } } READ8_MEMBER(g7400_state::io_read) { if ((m_p1 & (P1_VDC_COPY_MODE_ENABLE | P1_VDC_ENABLE)) == 0) { return m_i8244->read(space, offset); } else if (!(m_p1 & P1_EXT_RAM_ENABLE)) { return m_ram[offset]; } else if (!(m_p1 & P1_VPP_ENABLE)) { return m_ef9340_1->ef9341_read( offset & 0x02, offset & 0x01 ); } return 0; } WRITE8_MEMBER(g7400_state::io_write) { if ((m_p1 & (P1_EXT_RAM_ENABLE | P1_VDC_COPY_MODE_ENABLE)) == 0x00) { m_ram[offset] = data; if (offset & 0x80) { logerror("voice write %02X, data = %02X (p1 = %02X)\n", offset, data, m_p1); m_cart->io_write(space, offset, data); } } else if (!(m_p1 & P1_VDC_ENABLE)) { m_i8244->write(space, offset, data); } else if (!(m_p1 & P1_VPP_ENABLE)) { m_ef9340_1->ef9341_write( offset & 0x02, offset & 0x01, data ); } } WRITE16_MEMBER(odyssey2_state::scanline_postprocess) { int vpos = data; bitmap_ind16 *bitmap = m_i8244->get_bitmap(); if ( vpos < i8244_device::START_Y || vpos >= i8244_device::START_Y + i8244_device::SCREEN_HEIGHT ) { return; } // apply external LUM setting for ( int x = i8244_device::START_ACTIVE_SCAN; x < i8244_device::END_ACTIVE_SCAN; x++ ) { bitmap->pix16( vpos, x ) |= ( m_lum ^ 0x08 ); } } WRITE16_MEMBER(g7400_state::scanline_postprocess) { int vpos = data; int y = vpos - i8244_device::START_Y - 5; bitmap_ind16 *bitmap = m_i8244->get_bitmap(); bitmap_ind16 *ef934x_bitmap = m_ef9340_1->get_bitmap(); if ( vpos < i8244_device::START_Y || vpos >= i8244_device::START_Y + i8244_device::SCREEN_HEIGHT ) { return; } // apply external LUM setting int x_real_start = i8244_device::START_ACTIVE_SCAN + i8244_device::BORDER_SIZE + 5; int x_real_end = i8244_device::END_ACTIVE_SCAN - i8244_device::BORDER_SIZE + 5; for ( int x = i8244_device::START_ACTIVE_SCAN; x < i8244_device::END_ACTIVE_SCAN; x++ ) { UINT16 d = bitmap->pix16( vpos, x ); if ( ( ! m_ic678_decode[ d & 0x07 ] ) && x >= x_real_start && x < x_real_end && y >= 0 && y < 240 ) { // Use EF934x input d = ef934x_bitmap->pix16( y, x - x_real_start ) & 0x07; if ( ! m_ic674_decode[ d & 0x07 ] ) { d |= 0x08; } } else { // Use i8245 input d |= ( m_lum ^ 0x08 ); } bitmap->pix16( vpos, x ) = d; } } UINT32 odyssey2_state::screen_update_odyssey2(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { return m_i8244->screen_update(screen, bitmap, cliprect); } READ8_MEMBER(odyssey2_state::t1_read) { if ( m_i8244->vblank() || m_i8244->hblank() ) { return 1; } return 0; } READ8_MEMBER(odyssey2_state::p1_read) { UINT8 data = m_p1; return data; } WRITE8_MEMBER(odyssey2_state::p1_write) { m_p1 = data; m_lum = ( data & 0x80 ) >> 4; m_cart->write_bank(m_p1); } READ8_MEMBER(odyssey2_state::p2_read) { UINT8 h = 0xFF; int i, j; if (!(m_p1 & P1_KEYBOARD_SCAN_ENABLE)) { if ((m_p2 & P2_KEYBOARD_SELECT_MASK) <= 5) /* read keyboard */ { h &= m_keyboard[m_p2 & P2_KEYBOARD_SELECT_MASK]->read(); } for (i= 0x80, j = 0; i > 0; i >>= 1, j++) { if (!(h & i)) { m_p2 &= ~0x10; /* set key was pressed indicator */ m_p2 = (m_p2 & ~0xE0) | (j << 5); /* column that was pressed */ break; } } if (h == 0xFF) /* active low inputs, so no keypresses */ { m_p2 = m_p2 | 0xF0; } } else { m_p2 = m_p2 | 0xF0; } return m_p2; } WRITE8_MEMBER(odyssey2_state::p2_write) { m_p2 = data; } WRITE8_MEMBER(g7400_state::p2_write) { m_p2 = data; m_i8243->i8243_p2_w( space, 0, m_p2 & 0x0f ); } READ8_MEMBER(odyssey2_state::bus_read) { UINT8 data = 0xff; if ((m_p2 & P2_KEYBOARD_SELECT_MASK) == 1) { data &= m_joysticks[0]->read(); } if ((m_p2 & P2_KEYBOARD_SELECT_MASK) == 0) { data &= m_joysticks[1]->read(); } return data; } WRITE8_MEMBER(odyssey2_state::bus_write) { logerror("%.6f bus written %.2x\n", machine().time().as_double(), data); } /* i8243 in the g7400 */ WRITE8_MEMBER(g7400_state::i8243_port_w) { switch ( offset & 3 ) { case 0: // "port 4" logerror("setting ef-port4 to %02x\n", data); m_ic674_decode[4] = BIT(data,0); m_ic674_decode[5] = BIT(data,1); m_ic674_decode[6] = BIT(data,2); m_ic674_decode[7] = BIT(data,3); break; case 1: // "port 5" logerror("setting ef-port5 to %02x\n", data); m_ic674_decode[0] = BIT(data,0); m_ic674_decode[1] = BIT(data,1); m_ic674_decode[2] = BIT(data,2); m_ic674_decode[3] = BIT(data,3); break; case 2: // "port 6" logerror("setting vdc-port6 to %02x\n", data); m_ic678_decode[4] = BIT(data,0); m_ic678_decode[5] = BIT(data,1); m_ic678_decode[6] = BIT(data,2); m_ic678_decode[7] = BIT(data,3); break; case 3: // "port 7" logerror("setting vdc-port7 to %02x\n", data); m_ic678_decode[0] = BIT(data,0); m_ic678_decode[1] = BIT(data,1); m_ic678_decode[2] = BIT(data,2); m_ic678_decode[3] = BIT(data,3); break; } } static const gfx_layout odyssey2_graphicslayout = { 8,1, 256, /* 256 characters */ 1, /* 1 bits per pixel */ { 0 }, /* no bitplanes; 1 bit per pixel */ /* x offsets */ { 0, 1, 2, 3, 4, 5, 6, 7, }, /* y offsets */ { 0 }, 1*8 }; static const gfx_layout odyssey2_spritelayout = { 8,1, 256, /* 256 characters */ 1, /* 1 bits per pixel */ { 0 }, /* no bitplanes; 1 bit per pixel */ /* x offsets */ { 7,6,5,4,3,2,1,0 }, /* y offsets */ { 0 }, 1*8 }; static GFXDECODE_START( odyssey2 ) GFXDECODE_ENTRY( "gfx1", 0x0000, odyssey2_graphicslayout, 0, 2 ) GFXDECODE_ENTRY( "gfx1", 0x0000, odyssey2_spritelayout, 0, 2 ) GFXDECODE_END static MACHINE_CONFIG_FRAGMENT( odyssey2_cartslot ) MCFG_O2_CARTRIDGE_ADD("cartslot", o2_cart, nullptr) MCFG_SOFTWARE_LIST_ADD("cart_list","odyssey2") MACHINE_CONFIG_END static MACHINE_CONFIG_START( odyssey2, odyssey2_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", I8048, ( ( XTAL_7_15909MHz * 3 ) / 4 ) ) MCFG_CPU_PROGRAM_MAP(odyssey2_mem) MCFG_CPU_IO_MAP(odyssey2_io) MCFG_QUANTUM_TIME(attotime::from_hz(60)) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_RAW_PARAMS( XTAL_7_15909MHz/2 * 2, i8244_device::LINE_CLOCKS, i8244_device::START_ACTIVE_SCAN, i8244_device::END_ACTIVE_SCAN, i8244_device::LINES, i8244_device::START_Y, i8244_device::START_Y + i8244_device::SCREEN_HEIGHT ) MCFG_SCREEN_UPDATE_DRIVER(odyssey2_state, screen_update_odyssey2) MCFG_SCREEN_PALETTE("palette") MCFG_GFXDECODE_ADD("gfxdecode", "palette", odyssey2 ) MCFG_PALETTE_ADD("palette", 32) MCFG_PALETTE_INIT_OWNER(odyssey2_state, odyssey2) /* sound hardware */ MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_I8244_ADD( "i8244", XTAL_7_15909MHz/2 * 2, "screen", INPUTLINE( "maincpu", 0 ), WRITE16( odyssey2_state, scanline_postprocess ) ) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40) MCFG_FRAGMENT_ADD(odyssey2_cartslot) MACHINE_CONFIG_END static MACHINE_CONFIG_START( videopac, odyssey2_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", I8048, ( XTAL_17_73447MHz / 3 ) ) MCFG_CPU_PROGRAM_MAP(odyssey2_mem) MCFG_CPU_IO_MAP(odyssey2_io) MCFG_QUANTUM_TIME(attotime::from_hz(60)) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_RAW_PARAMS( XTAL_17_73447MHz/5 * 2, i8244_device::LINE_CLOCKS, i8244_device::START_ACTIVE_SCAN, i8244_device::END_ACTIVE_SCAN, i8245_device::LINES, i8244_device::START_Y, i8244_device::START_Y + i8244_device::SCREEN_HEIGHT ) MCFG_SCREEN_UPDATE_DRIVER(odyssey2_state, screen_update_odyssey2) MCFG_SCREEN_PALETTE("palette") MCFG_GFXDECODE_ADD("gfxdecode", "palette", odyssey2 ) MCFG_PALETTE_ADD("palette", 16) MCFG_PALETTE_INIT_OWNER(odyssey2_state, odyssey2) /* sound hardware */ MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_I8245_ADD( "i8244", XTAL_17_73447MHz/5 * 2, "screen", INPUTLINE( "maincpu", 0 ), WRITE16( odyssey2_state, scanline_postprocess ) ) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40) MCFG_FRAGMENT_ADD(odyssey2_cartslot) MACHINE_CONFIG_END static MACHINE_CONFIG_START( g7400, g7400_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", I8048, XTAL_5_911MHz ) MCFG_CPU_PROGRAM_MAP(odyssey2_mem) MCFG_CPU_IO_MAP(g7400_io) MCFG_QUANTUM_TIME(attotime::from_hz(60)) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_RAW_PARAMS( 3540000 * 2, i8244_device::LINE_CLOCKS, i8244_device::START_ACTIVE_SCAN, i8244_device::END_ACTIVE_SCAN, i8245_device::LINES, i8244_device::START_Y, i8244_device::START_Y + i8244_device::SCREEN_HEIGHT ) MCFG_SCREEN_UPDATE_DRIVER(odyssey2_state, screen_update_odyssey2) MCFG_SCREEN_PALETTE("palette") MCFG_GFXDECODE_ADD("gfxdecode", "palette", odyssey2 ) MCFG_PALETTE_ADD("palette", 16) MCFG_PALETTE_INIT_OWNER(g7400_state, g7400) MCFG_I8243_ADD( "i8243", NOOP, WRITE8(g7400_state,i8243_port_w)) MCFG_EF9340_1_ADD( "ef9340_1", 3540000, "screen" ) MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_I8245_ADD( "i8244", 3540000 * 2, "screen", INPUTLINE( "maincpu", 0 ), WRITE16( g7400_state, scanline_postprocess ) ) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40) MCFG_FRAGMENT_ADD(odyssey2_cartslot) MCFG_DEVICE_REMOVE("cart_list") MCFG_SOFTWARE_LIST_ADD("cart_list","g7400") MCFG_SOFTWARE_LIST_COMPATIBLE_ADD("ody2_list","odyssey2") MACHINE_CONFIG_END static MACHINE_CONFIG_START( odyssey3, g7400_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", I8048, XTAL_5_911MHz ) MCFG_CPU_PROGRAM_MAP(odyssey2_mem) MCFG_CPU_IO_MAP(g7400_io) MCFG_QUANTUM_TIME(attotime::from_hz(60)) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_RAW_PARAMS( 3540000 * 2, i8244_device::LINE_CLOCKS, i8244_device::START_ACTIVE_SCAN, i8244_device::END_ACTIVE_SCAN, i8244_device::LINES, i8244_device::START_Y, i8244_device::START_Y + i8244_device::SCREEN_HEIGHT ) MCFG_SCREEN_UPDATE_DRIVER(odyssey2_state, screen_update_odyssey2) MCFG_SCREEN_PALETTE("palette") MCFG_GFXDECODE_ADD("gfxdecode", "palette", odyssey2 ) MCFG_PALETTE_ADD("palette", 16) MCFG_PALETTE_INIT_OWNER(g7400_state, g7400) MCFG_I8243_ADD( "i8243", NOOP, WRITE8(g7400_state,i8243_port_w)) MCFG_EF9340_1_ADD( "ef9340_1", 3540000, "screen" ) MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_I8244_ADD( "i8244", 3540000 * 2, "screen", INPUTLINE( "maincpu", 0 ), WRITE16( g7400_state, scanline_postprocess ) ) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40) MCFG_FRAGMENT_ADD(odyssey2_cartslot) MCFG_DEVICE_REMOVE("cart_list") MCFG_SOFTWARE_LIST_ADD("cart_list","g7400") MCFG_SOFTWARE_LIST_COMPATIBLE_ADD("ody2_list","odyssey2") MACHINE_CONFIG_END ROM_START (odyssey2) ROM_REGION(0x10000,"maincpu",0) /* safer for the memory handler/bankswitching??? */ ROM_LOAD ("o2bios.rom", 0x0000, 0x0400, CRC(8016a315) SHA1(b2e1955d957a475de2411770452eff4ea19f4cee)) ROM_REGION(0x100, "gfx1", ROMREGION_ERASEFF) ROM_END ROM_START (videopac) ROM_REGION(0x10000,"maincpu",0) /* safer for the memory handler/bankswitching??? */ ROM_SYSTEM_BIOS( 0, "g7000", "g7000" ) ROMX_LOAD ("o2bios.rom", 0x0000, 0x0400, CRC(8016a315) SHA1(b2e1955d957a475de2411770452eff4ea19f4cee), ROM_BIOS(1)) ROM_SYSTEM_BIOS( 1, "c52", "c52" ) ROMX_LOAD ("c52.bin", 0x0000, 0x0400, CRC(a318e8d6) SHA1(a6120aed50831c9c0d95dbdf707820f601d9452e), ROM_BIOS(2)) ROM_REGION(0x100, "gfx1", ROMREGION_ERASEFF) ROM_END ROM_START (g7400) ROM_REGION(0x10000,"maincpu",0) /* safer for the memory handler/bankswitching??? */ ROM_LOAD ("g7400.bin", 0x0000, 0x0400, CRC(e20a9f41) SHA1(5130243429b40b01a14e1304d0394b8459a6fbae)) ROM_REGION(0x100, "gfx1", ROMREGION_ERASEFF) ROM_END ROM_START (jopac) ROM_REGION(0x10000,"maincpu",0) /* safer for the memory handler/bankswitching??? */ ROM_LOAD ("jopac.bin", 0x0000, 0x0400, CRC(11647ca5) SHA1(54b8d2c1317628de51a85fc1c424423a986775e4)) ROM_REGION(0x100, "gfx1", ROMREGION_ERASEFF) ROM_END ROM_START (odyssey3) ROM_REGION(0x10000, "maincpu", 0) ROM_LOAD ("odyssey3.bin", 0x0000, 0x0400, CRC(e2b23324) SHA1(0a38c5f2cea929d2fe0a23e5e1a60de9155815dc)) ROM_REGION(0x100, "gfx1", ROMREGION_ERASEFF) ROM_END /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ COMP( 1978, odyssey2, 0, 0, odyssey2, odyssey2, odyssey2_state, odyssey2, "Magnavox", "Odyssey 2", 0 ) COMP( 1979, videopac, odyssey2, 0, videopac, odyssey2, odyssey2_state, odyssey2, "Philips", "Videopac G7000/C52", 0 ) COMP( 1983, g7400, odyssey2, 0, g7400, odyssey2, odyssey2_state, odyssey2, "Philips", "Videopac Plus G7400", MACHINE_IMPERFECT_GRAPHICS ) COMP( 1983, jopac, odyssey2, 0, g7400, odyssey2, odyssey2_state, odyssey2, "Brandt", "Jopac JO7400", MACHINE_IMPERFECT_GRAPHICS ) COMP( 1983, odyssey3, odyssey2, 0, odyssey3, odyssey2, odyssey2_state, odyssey2, "Magnavox", "Odyssey 3 Command Center (prototype)", MACHINE_IMPERFECT_GRAPHICS )