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-rw-r--r--src/mame/drivers/odyssey2.cpp833
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diff --git a/src/mame/drivers/odyssey2.cpp b/src/mame/drivers/odyssey2.cpp
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index 00000000000..f7b945fecbd
--- /dev/null
+++ b/src/mame/drivers/odyssey2.cpp
@@ -0,0 +1,833 @@
+// 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<cpu_device> m_maincpu;
+ required_device<i8244_device> m_i8244;
+ required_device<o2_cart_slot_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();
+ virtual void machine_reset();
+ DECLARE_PALETTE_INIT(odyssey2);
+ UINT32 screen_update_odyssey2(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+ DECLARE_WRITE_LINE_MEMBER(irq_callback);
+
+ 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<i8243_device> m_i8243;
+ required_device<ef9340_1_device> m_ef9340_1;
+
+ DECLARE_PALETTE_INIT(g7400);
+ virtual void machine_start();
+ virtual void machine_reset();
+ 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] );
+ }
+}
+
+
+WRITE_LINE_MEMBER(odyssey2_state::irq_callback)
+{
+ m_maincpu->set_input_line(0, state);
+}
+
+
+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, NULL)
+
+ 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", WRITELINE( odyssey2_state, irq_callback ), 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", WRITELINE( odyssey2_state, irq_callback ), 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", WRITELINE( odyssey2_state, irq_callback ), 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", WRITELINE( odyssey2_state, irq_callback ), 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 )