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Various changes to Inter Stellar, nw

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This commit is contained in:
Angelo Salese 2012-08-05 19:59:29 +00:00
parent b21820f687
commit f3688c1e86
1 changed files with 30 additions and 29 deletions
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59
src/mame/drivers/istellar.c
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@ -3,8 +3,8 @@ Funai / Gakken Interstellar Laser Fantasy laserdisc hardware
Driver by Andrew Gardner with help from Daphne Source
Notes:
Holding down the TEST switch (T) while hitting reset will bring up the Self Test.
Hit T twice more for color and monitor calibration.
Holding down the TEST switch while hitting reset will bring up the Self Test.
Hit TEST switch again for color and monitor calibration.
This is somewhat strange hardware : More z80's than necessary
3 bpp sprites
6-pin dip switches with odd handling
@ -58,34 +58,23 @@ public:
/* VIDEO GOODS */
static SCREEN_UPDATE_IND16( istellar )
static SCREEN_UPDATE_RGB32( istellar )
{
istellar_state *state = screen.machine().driver_data<istellar_state>();
int charx, chary;
int x, y;
/* clear */
bitmap.fill(0, cliprect);
/* DEBUG */
/*
for (charx = 0; charx < 0x400; charx ++)
{
printf ("%x ", state->m_sprite_ram[charx]) ;
}
printf("\n\n\n");
*/
/* Draw tiles */
for (charx = 0; charx < 32; charx++)
for (y = 0; y < 32; y++)
{
for (chary = 0; chary < 32; chary++)
for (x = 0; x < 32; x++)
{
int current_screen_character = (chary*32) + charx;
int tile = state->m_tile_ram[x+y*32];
int attr = state->m_tile_control_ram[x+y*32];
drawgfx_transpen(bitmap, cliprect, screen.machine().gfx[0],
state->m_tile_ram[current_screen_character],
(state->m_tile_control_ram[current_screen_character] & 0x0f),
0, 0, charx*8, chary*8, 0);
drawgfx_transpen(bitmap, cliprect, screen.machine().gfx[0],tile,attr & 0x0f,0, 0, x*8, y*8, 0);
}
}
@ -256,7 +245,7 @@ static INPUT_PORTS_START( istellar )
PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unused ) ) PORT_DIPLOCATION("SW2:!5") /* Maybe SERVICE? */
PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME( "TEST" ) PORT_CODE( KEYCODE_T )
PORT_SERVICE_NO_TOGGLE( 0x08, IP_ACTIVE_HIGH )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_START2 )
@ -277,7 +266,6 @@ static PALETTE_INIT( istellar )
const UINT8 *color_prom = machine.root_device().memregion("proms")->base();
int i;
/* Oddly enough, the top 4 bits of each byte is 0 */
for (i = 0; i < machine.total_colors(); i++)
{
int r,g,b;
@ -308,30 +296,27 @@ static PALETTE_INIT( istellar )
palette_set_color(machine,i,MAKE_RGB(r,g,b));
}
/* make color 0 transparent */
palette_set_color(machine, 0, MAKE_ARGB(0,0,0,0));
}
static const gfx_layout istellar_gfx_layout =
{
8,8,
0x2000/8,
RGN_FRAC(1,3),
3,
{ 0, 0x2000*8, 0x4000*8 },
{ RGN_FRAC(0,3), RGN_FRAC(1,3), RGN_FRAC(2,3) },
{ 0,1,2,3,4,5,6,7 },
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
8*8
};
static GFXDECODE_START( istellar )
GFXDECODE_ENTRY( "gfx1", 0, istellar_gfx_layout, 0x0, 0x100 )
GFXDECODE_ENTRY( "gfx1", 0, istellar_gfx_layout, 0x0, 0x20 )
GFXDECODE_END
static INTERRUPT_GEN( vblank_callback_istellar )
{
/* Interrupt presumably comes from VBlank */
device_set_input_line(device, 0, ASSERT_LINE);
device_set_input_line(device, 0, HOLD_LINE);
/* Interrupt presumably comes from the LDP's status strobe */
cputag_set_input_line(device->machine(), "sub", 0, ASSERT_LINE);
@ -417,6 +402,22 @@ static DRIVER_INIT( istellar )
{
istellar_state *state = machine.driver_data<istellar_state>();
state->m_z80_2_nmi_enable = 0;
#if 0
{
UINT8 *ROM = machine.root_device().memregion("maincpu")->base();
ROM[0x4465] = 0x00;
ROM[0x4466] = 0x00;
ROM[0x4478] = 0x00;
ROM[0x4479] = 0x00;
ROM[0x43b4] = 0x00;
ROM[0x43b5] = 0x00;
ROM[0x4409] = 0x20;
ROM[0x46de] = 0x00;
ROM[0x46df] = 0x00;
}
#endif
}
/* YEAR NAME PARENT MACHINE INPUT INIT MONITOR COMPANY FULLNAME FLAGS) */