/***************************************************************************
/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
TODO:
- Reimplement the cartridge slot, and thus also the voice, as a slot device
***************************************************************************/
#include "emu.h"
#include "cpu/mcs48/mcs48.h"
#include "imagedev/cartslot.h"
#include "sound/sp0256.h"
#include "video/i8244.h"
#include "machine/i8243.h"
#include "video/ef9340_1.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_screen(*this, "screen")
, m_i8244(*this, "i8244")
, m_user1(*this, "user1")
, m_bank1(*this, "bank1")
, m_bank2(*this, "bank2")
, m_key0(*this, "KEY0")
, m_key1(*this, "KEY1")
, m_key2(*this, "KEY2")
, m_key3(*this, "KEY3")
, m_key4(*this, "KEY4")
, m_key5(*this, "KEY5")
, m_joy0(*this, "JOY0")
, m_joy1(*this, "JOY1")
{ }
required_device<cpu_device> m_maincpu;
required_device<screen_device> m_screen;
required_device<i8244_device> m_i8244;
int m_the_voice_lrq_state;
UINT8 m_ram[256];
UINT8 m_p1;
UINT8 m_p2;
int m_cart_size;
UINT8 m_lum;
DECLARE_READ8_MEMBER(t0_read);
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();
virtual void palette_init();
UINT32 screen_update_odyssey2(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
DECLARE_WRITE_LINE_MEMBER(the_voice_lrq_callback);
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_memory_region m_user1;
required_memory_bank m_bank1;
required_memory_bank m_bank2;
required_ioport m_key0;
required_ioport m_key1;
required_ioport m_key2;
required_ioport m_key3;
required_ioport m_key4;
required_ioport m_key5;
required_ioport m_joy0;
required_ioport m_joy1;
void switch_banks();
};
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;
virtual void palette_init();
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_RAMBANK("bank1")
AM_RANGE(0x0C00, 0x0FFF) AM_RAMBANK("bank2")
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_READ(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_READ(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("KEY0") /* IN0 */
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("KEY1") /* IN1 */
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("KEY2") /* IN2 */
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("KEY3") /* IN3 */
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("KEY4") /* IN4 */
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("KEY5") /* IN5 */
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("JOY0") /* IN6 */
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("JOY1") /* IN7 */
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
0x13,0x35,0xA5, /* Blue - Calibrated To Real VideoPac */ // i r g B
0x02,0x70,0x02, /* Green - Calibrated To Real VideoPac */ // i r G b
0x38,0x85,0x8C, /* Blue-Green - Calibrated To Real VideoPac */ // i r G B
0x91,0x00,0x00, /* Dk Red - Calibrated To Real VideoPac */ // i R g b
0x86,0x49,0xA3, /* Violet - Calibrated To Real VideoPac */ // i R g B
0x68,0x5A,0x0A, /* Khaki - Calibrated To Real VideoPac */ // i R g B
0xcc,0xcc,0xcc, /* Lt Grey */ // i R G B
/* Background,Grid Bright */
0x5B,0x5B,0x5B, /* Grey - Calibrated To Real VideoPac */ // I R g B
0x60,0x89,0xDB, /* Ltr Blue - Calibrated To Real VideoPac */ // I R g B
0x54,0xBF,0x54, /* Lt Green - Calibrated To Real VideoPac */ // I R g B
0x6B,0xDD,0xF4, /* Lt Blue - Calibrated To Real VideoPac */ // I R g b
0xE5,0x5E,0x5E, /* Red - Calibrated To Real VideoPac */ // I R g b
0xD9,0x83,0xDB, /* Lt Violet - Calibrated To Real VideoPac */ // I R g B
0xC4,0xBD,0x5C, /* Lt Yellow - Calibrated To Real VideoPac */ // I R G b
0xFF,0xFF,0xFF, /* White */ // I R G B
};
void odyssey2_state::palette_init()
{
for ( int i = 0; i < 16; i++ )
{
palette_set_color_rgb( machine(), i, odyssey2_colors[i*3], odyssey2_colors[i*3+1], odyssey2_colors[i*3+2] );
}
}
void g7400_state::palette_init()
{
const UINT8 g7400_colors[] =
{
0x00,0x00,0x00, 0x00,0x00,0xb6, 0x00,0xb6,0x00, 0x00,0xb6,0xb6,
0xb6,0x00,0x00, 0xb6,0x00,0xb6, 0xb6,0xb6,0x00, 0xb6,0xb6,0xb6,
0x49,0x49,0x49, 0x49,0x49,0xff, 0x49,0xff,0x49, 0x49,0xff,0xff,
0xff,0x49,0x49, 0xff,0x49,0xff, 0xff,0xff,0x49, 0xff,0xff,0xff
};
for ( int i = 0; i < 16; i++ )
{
palette_set_color_rgb( machine(), 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);
}
void odyssey2_state::switch_banks()
{
switch ( m_cart_size )
{
case 12288:
/* 12KB cart support (for instance, KTAA as released) */
m_bank1->set_base( m_user1->base() + (m_p1 & 0x03) * 0xC00 );
m_bank2->set_base( m_user1->base() + (m_p1 & 0x03) * 0xC00 + 0x800 );
break;
case 16384:
/* 16KB cart support (for instance, full sized version KTAA) */
m_bank1->set_base( m_user1->base() + (m_p1 & 0x03) * 0x1000 + 0x400 );
m_bank2->set_base( m_user1->base() + (m_p1 & 0x03) * 0x1000 + 0xC00 );
break;
default:
m_bank1->set_base( m_user1->base() + (m_p1 & 0x03) * 0x800 );
m_bank2->set_base( m_user1->base() + (m_p1 & 0x03) * 0x800 );
break;
}
}
WRITE_LINE_MEMBER(odyssey2_state::the_voice_lrq_callback)
{
m_the_voice_lrq_state = state;
}
READ8_MEMBER(odyssey2_state::t0_read)
{
return ( m_the_voice_lrq_state == ASSERT_LINE ) ? 0 : 1;
}
DRIVER_INIT_MEMBER(odyssey2_state,odyssey2)
{
int i;
int size = 0;
UINT8 *gfx = memregion("gfx1")->base();
device_image_interface *image = dynamic_cast<device_image_interface *>(machine().device("cart"));
for (i = 0; i < 256; i++)
{
gfx[i] = i; /* TODO: Why i and not 0? */
m_ram[i] = 0;
}
if (image->exists())
{
if (image->software_entry() == NULL)
{
size = image->length();
}
else
{
size = image->get_software_region_length("rom");
}
}
m_cart_size = size;
}
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_cart_size));
save_item(NAME(m_lum));
save_item(NAME(m_the_voice_lrq_state));
}
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;
switch_banks();
}
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 )
{
if ( data & 0x20 )
{
logerror("voice write %02X, data = %02X (p1 = %02X)\n", offset, data, m_p1 );
sp0256_ALD_w( machine().device("sp0256_speech"), space, 0, offset & 0x7F );
}
else
{
/* TODO: Reset sp0256 in this case */
}
}
}
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;
}
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 + 2;
int x_real_end = i8244_device::END_ACTIVE_SCAN - i8244_device::BORDER_SIZE + 2;
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;
switch_banks();
}
READ8_MEMBER(odyssey2_state::p2_read)
{
UINT8 h = 0xFF;
int i, j;
ioport_port* ioports[] = { m_key0, m_key1, m_key2, m_key3, m_key4, m_key5 };
if (!(m_p1 & P1_KEYBOARD_SCAN_ENABLE))
{
if ((m_p2 & P2_KEYBOARD_SELECT_MASK) <= 5) /* read keyboard */
{
h &= ioports[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_joy0->read(); /* read joystick 1 */
}
if ((m_p2 & P2_KEYBOARD_SELECT_MASK) == 0)
{
data &= m_joy1->read(); /* read joystick 2 */
}
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 const sp0256_interface the_voice_sp0256 =
{
DEVCB_DRIVER_LINE_MEMBER(odyssey2_state,the_voice_lrq_callback),
DEVCB_NULL
};
static MACHINE_CONFIG_FRAGMENT( odyssey2_cartslot )
MCFG_CARTSLOT_ADD("cart")
MCFG_CARTSLOT_EXTENSION_LIST("bin,rom")
MCFG_CARTSLOT_NOT_MANDATORY
MCFG_CARTSLOT_INTERFACE("odyssey_cart")
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_GFXDECODE( odyssey2 )
MCFG_PALETTE_LENGTH(32)
/* 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_SOUND_ADD("sp0256_speech", SP0256, 3120000)
MCFG_SOUND_CONFIG(the_voice_sp0256)
/* The Voice uses a speaker with its own volume control so the relative volumes to use are subjective, these sound good */
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
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_GFXDECODE( odyssey2 )
MCFG_PALETTE_LENGTH(16)
/* 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_SOUND_ADD("sp0256_speech", SP0256, 3120000)
MCFG_SOUND_CONFIG(the_voice_sp0256)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
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_GFXDECODE( odyssey2 )
MCFG_PALETTE_LENGTH(16)
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
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_REGION(0x4000, "user1", 0)
ROM_CART_LOAD("cart", 0x0000, 0x4000, ROM_MIRROR)
ROM_REGION( 0x10000, "sp0256_speech", 0 )
/* SP0256B-019 Speech chip w/2KiB mask rom */
ROM_LOAD( "sp0256b-019.bin", 0x1000, 0x0800, CRC(4bb43724) SHA1(49f5326ad45392dc96c89d1d4e089a20bd21e609) )
/* A note about "The Voice": Two versions of "The Voice" exist:
* An earlier version with eight 2KiB speech roms, spr016-??? through spr016-??? on a small daughterboard
<note to self: fill in numbers later>
* A later version with one 16KiB speech rom, spr128-003, mounted directly on the mainboard
The rom contents of these two versions are EXACTLY the same.
Both versions have an sp0256b-019 speech chip, which has 2KiB of its own internal speech data
Thanks to kevtris for this info. - LN
*/
/* External 16KiB speech ROM (spr128-003) from "The Voice" */
ROM_LOAD( "spr128-003.bin", 0x4000, 0x4000, CRC(509367b5) SHA1(0f31f46bc02e9272885779a6dd7102c78b18895b) )
/* Additional External 16KiB ROM (spr128-004) from S.I.D. the Spellbinder */
ROM_LOAD( "spr128-004.bin", 0x8000, 0x4000, CRC(e79dfb75) SHA1(37f33d79ffd1739d7c2f226b010a1eac28d74ca0) )
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_REGION(0x4000, "user1", 0)
ROM_CART_LOAD("cart", 0x0000, 0x4000, ROM_MIRROR)
ROM_REGION( 0x10000, "sp0256_speech", 0 )
/* SP0256B-019 Speech chip w/2KiB mask rom */
ROM_LOAD( "sp0256b-019.bin", 0x1000, 0x0800, CRC(4bb43724) SHA1(49f5326ad45392dc96c89d1d4e089a20bd21e609) )
/* External 16KiB speech ROM (spr128-003) from "The Voice" */
ROM_LOAD( "spr128-003.bin", 0x4000, 0x4000, CRC(509367b5) SHA1(0f31f46bc02e9272885779a6dd7102c78b18895b) )
/* Additional External 16KiB speech ROM (spr128-004) from S.I.D. the Spellbinder */
ROM_LOAD( "spr128-004.bin", 0x8000, 0x4000, CRC(e79dfb75) SHA1(37f33d79ffd1739d7c2f226b010a1eac28d74ca0) )
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_REGION(0x4000, "user1", 0)
ROM_CART_LOAD("cart", 0x0000, 0x4000, ROM_MIRROR)
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_REGION(0x4000, "user1", 0)
ROM_CART_LOAD("cart", 0x0000, 0x4000, ROM_MIRROR)
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", GAME_NOT_WORKING )
COMP( 1983, jopac, odyssey2, 0, g7400, odyssey2, odyssey2_state, odyssey2, "Brandt", "Jopac JO7400", GAME_NOT_WORKING )