// 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 "machine/i8243.h"
#include "video/ef9340_1.h"
#include "video/i8244.h"
#include "bus/odyssey2/slot.h"
#include "screen.h"
#include "softlist.h"
#include "speaker.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.%u", 0),
m_joysticks(*this, "JOY.%u", 0) { }
required_device<cpu_device> m_maincpu;
required_device<i8244_device> m_i8244;
required_device<o2_cart_slot_device> m_cart;
uint8_t m_ram[256];
uint8_t m_p1;
uint8_t m_p2;
uint8_t 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_READ_LINE_MEMBER(t1_read);
DECLARE_DRIVER_INIT(odyssey2);
virtual void machine_start() override;
virtual void machine_reset() override;
DECLARE_PALETTE_INIT(odyssey2);
uint32_t screen_update_odyssey2(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
DECLARE_WRITE16_MEMBER(scanline_postprocess);
void odyssey2_cartslot(machine_config &config);
void videopac(machine_config &config);
void odyssey2(machine_config &config);
void odyssey2_io(address_map &map);
void odyssey2_mem(address_map &map);
protected:
/* constants */
static const uint8_t P1_BANK_LO_BIT = 0x01;
static const uint8_t P1_BANK_HI_BIT = 0x02;
static const uint8_t P1_KEYBOARD_SCAN_ENABLE = 0x04; /* active low */
static const uint8_t P1_VDC_ENABLE = 0x08; /* active low */
static const uint8_t P1_EXT_RAM_ENABLE = 0x10; /* active low */
static const uint8_t P1_VPP_ENABLE = 0x20; /* active low */
static const uint8_t P1_VDC_COPY_MODE_ENABLE = 0x40;
static const uint8_t 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() 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);
void g7400(machine_config &config);
void odyssey3(machine_config &config);
void g7400_io(address_map &map);
protected:
uint8_t m_ic674_decode[8];
uint8_t m_ic678_decode[8];
};
void odyssey2_state::odyssey2_mem(address_map &map)
{
map(0x0000, 0x03ff).rom();
map(0x0400, 0x0bff).r(m_cart, FUNC(o2_cart_slot_device::read_rom04));
map(0x0c00, 0x0fff).r(m_cart, FUNC(o2_cart_slot_device::read_rom0c));
}
void odyssey2_state::odyssey2_io(address_map &map)
{
map(0x00, 0xff).rw(this, FUNC(odyssey2_state::io_read), FUNC(odyssey2_state::io_write));
}
void g7400_state::g7400_io(address_map &map)
{
map(0x00, 0xff).rw(this, FUNC(g7400_state::io_read), FUNC(g7400_state::io_write));
}
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_t 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_t 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_t *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_t 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_t odyssey2_state::screen_update_odyssey2(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
return m_i8244->screen_update(screen, bitmap, cliprect);
}
READ_LINE_MEMBER(odyssey2_state::t1_read)
{
if ( m_i8244->vblank() || m_i8244->hblank() )
{
return 1;
}
return 0;
}
READ8_MEMBER(odyssey2_state::p1_read)
{
uint8_t 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_t 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->p2_w( space, 0, m_p2 & 0x0f );
}
READ8_MEMBER(odyssey2_state::bus_read)
{
uint8_t 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
MACHINE_CONFIG_START(odyssey2_state::odyssey2_cartslot)
MCFG_O2_CARTRIDGE_ADD("cartslot", o2_cart, nullptr)
MCFG_SOFTWARE_LIST_ADD("cart_list","odyssey2")
MACHINE_CONFIG_END
MACHINE_CONFIG_START(odyssey2_state::odyssey2)
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", I8048, ( ( XTAL(7'159'090) * 3 ) / 4 ) )
MCFG_CPU_PROGRAM_MAP(odyssey2_mem)
MCFG_CPU_IO_MAP(odyssey2_io)
MCFG_MCS48_PORT_P1_IN_CB(READ8(odyssey2_state, p1_read))
MCFG_MCS48_PORT_P1_OUT_CB(WRITE8(odyssey2_state, p1_write))
MCFG_MCS48_PORT_P2_IN_CB(READ8(odyssey2_state, p2_read))
MCFG_MCS48_PORT_P2_OUT_CB(WRITE8(odyssey2_state, p2_write))
MCFG_MCS48_PORT_BUS_IN_CB(READ8(odyssey2_state, bus_read))
MCFG_MCS48_PORT_BUS_OUT_CB(WRITE8(odyssey2_state, bus_write))
MCFG_MCS48_PORT_T0_IN_CB(DEVREADLINE("cartslot", o2_cart_slot_device, t0_read))
MCFG_MCS48_PORT_T1_IN_CB(READLINE(odyssey2_state, t1_read))
MCFG_QUANTUM_TIME(attotime::from_hz(60))
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_RAW_PARAMS( XTAL(7'159'090)/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(7'159'090)/2 * 2, "screen", INPUTLINE( "maincpu", 0 ), WRITE16( odyssey2_state, scanline_postprocess ) )
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40)
odyssey2_cartslot(config);
MACHINE_CONFIG_END
MACHINE_CONFIG_START(odyssey2_state::videopac)
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", I8048, ( XTAL(17'734'470) / 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(17'734'470)/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(17'734'470)/5 * 2, "screen", INPUTLINE( "maincpu", 0 ), WRITE16( odyssey2_state, scanline_postprocess ) )
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40)
odyssey2_cartslot(config);
MACHINE_CONFIG_END
MACHINE_CONFIG_START(g7400_state::g7400)
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", I8048, XTAL(5'911'000) )
MCFG_CPU_PROGRAM_MAP(odyssey2_mem)
MCFG_CPU_IO_MAP(g7400_io)
MCFG_MCS48_PORT_P1_IN_CB(READ8(g7400_state, p1_read))
MCFG_MCS48_PORT_P1_OUT_CB(WRITE8(g7400_state, p1_write))
MCFG_MCS48_PORT_P2_IN_CB(READ8(g7400_state, p2_read))
MCFG_MCS48_PORT_P2_OUT_CB(WRITE8(g7400_state, p2_write))
MCFG_MCS48_PORT_BUS_IN_CB(READ8(g7400_state, bus_read))
MCFG_MCS48_PORT_BUS_OUT_CB(WRITE8(g7400_state, bus_write))
MCFG_MCS48_PORT_T0_IN_CB(DEVREADLINE("cartslot", o2_cart_slot_device, t0_read))
MCFG_MCS48_PORT_T1_IN_CB(READLINE(g7400_state, t1_read))
MCFG_MCS48_PORT_PROG_OUT_CB(DEVWRITELINE("i8243", i8243_device, prog_w))
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)
odyssey2_cartslot(config);
MCFG_DEVICE_REMOVE("cart_list")
MCFG_SOFTWARE_LIST_ADD("cart_list","g7400")
MCFG_SOFTWARE_LIST_COMPATIBLE_ADD("ody2_list","odyssey2")
MACHINE_CONFIG_END
MACHINE_CONFIG_START(g7400_state::odyssey3)
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", I8048, XTAL(5'911'000) )
MCFG_CPU_PROGRAM_MAP(odyssey2_mem)
MCFG_CPU_IO_MAP(g7400_io)
MCFG_MCS48_PORT_P1_IN_CB(READ8(g7400_state, p1_read))
MCFG_MCS48_PORT_P1_OUT_CB(WRITE8(g7400_state, p1_write))
MCFG_MCS48_PORT_P2_IN_CB(READ8(g7400_state, p2_read))
MCFG_MCS48_PORT_P2_OUT_CB(WRITE8(g7400_state, p2_write))
MCFG_MCS48_PORT_BUS_IN_CB(READ8(g7400_state, bus_read))
MCFG_MCS48_PORT_BUS_OUT_CB(WRITE8(g7400_state, bus_write))
MCFG_MCS48_PORT_T0_IN_CB(DEVREADLINE("cartslot", o2_cart_slot_device, t0_read))
MCFG_MCS48_PORT_T1_IN_CB(READLINE(g7400_state, t1_read))
MCFG_MCS48_PORT_PROG_OUT_CB(DEVWRITELINE("i8243", i8243_device, prog_w))
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)
odyssey2_cartslot(config);
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 STATE 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, g7400_state, odyssey2, "Philips", "Videopac Plus G7400", MACHINE_IMPERFECT_GRAPHICS )
COMP( 1983, jopac, odyssey2, 0, g7400, odyssey2, g7400_state, odyssey2, "Brandt", "Jopac JO7400", MACHINE_IMPERFECT_GRAPHICS )
COMP( 1983, odyssey3, odyssey2, 0, odyssey3, odyssey2, g7400_state, odyssey2, "Magnavox", "Odyssey 3 Command Center (prototype)", MACHINE_IMPERFECT_GRAPHICS )