static READ8_HANDLER( dunhuang_service_r )
{
return input_port_read_indexed(machine, 5)
| ((dunhuang_hopper && !(video_screen_get_frame_number(machine->primary_screen)%10)) ? 0x00 : 0x08) // bit 3: hopper sensor
| 0x80 // bit 7 low -> tiles block transferrer busy
;
}
static void draw_sprites( running_machine* machine, bitmap_t *bitmap, const rectangle *cliprect )
{
diverboy_state *state = (diverboy_state *)machine->driver_data;
UINT16 *source = state->spriteram;
UINT16 *finish = source + (state->spriteram_size / 2);
while (source < finish)
{
INT16 xpos, ypos, number, colr, bank, flash;
ypos = source[4];
xpos = source[0];
colr = (source[1] & 0x00f0) >> 4;
number = source[3];
flash = source[1] & 0x1000;
colr |= ((source[1] & 0x000c) << 2);
ypos = 0x100 - ypos;
bank = (source[1] & 0x0002) >> 1;
if (!flash || (video_screen_get_frame_number(machine->primary_screen) & 1))
{
drawgfx_transpen(bitmap,cliprect,machine->gfx[bank],
number,
colr,
0,0,
xpos,ypos,
(source[1] & 0x0008) ? -1 : 0);
}
source += 8;
}
}
static void draw_sprites(running_machine* machine, bitmap_t *bitmap, const rectangle *cliprect )
{
UINT16 *source = diverboy_spriteram;
UINT16 *finish = source + (diverboy_spriteram_size/2);
while (source < finish)
{
INT16 xpos,ypos,number,colr,bank,flash;
ypos = source[4];
xpos = source[0];
colr = (source[1]& 0x00f0) >> 4;
number = source[3];
flash = source[1] & 0x1000;
colr |= ((source[1] & 0x000c) << 2);
ypos = 0x100 - ypos;
bank = (source[1]&0x0002) >> 1;
if (!flash || (video_screen_get_frame_number(machine->primary_screen) & 1))
{
drawgfx(bitmap,machine->gfx[bank],
number,
colr,
0,0,
xpos,ypos,
cliprect,(source[1] & 0x0008) ? TRANSPARENCY_NONE : TRANSPARENCY_PEN,0);
}
source+=8;
}
}
static CUSTOM_INPUT( hopper_r )
{
return hopper && !(video_screen_get_frame_number(field->port->machine->primary_screen)%10);
}