static WRITE8_HANDLER( goonies_rom_banking )
{
int reg = ( offset >> 12 ) & 0x07;
int bankoffset = ( data & 7 ) * 0x2000 + 0x10000;
switch( reg )
{
case 0: /* code bank 0 */
memcpy( &memory_region( REGION_CPU1 )[0x08000], &memory_region( REGION_CPU1 )[bankoffset], 0x2000 );
break;
case 2: /* code bank 1 */
memcpy( &memory_region( REGION_CPU1 )[0x0a000], &memory_region( REGION_CPU1 )[bankoffset], 0x2000 );
break;
case 4: /* code bank 2 */
memcpy( &memory_region( REGION_CPU1 )[0x0c000], &memory_region( REGION_CPU1 )[bankoffset], 0x2000 );
break;
case 6: /* vrom bank 0 */
ppu2c03b_set_videorom_bank( 0, 0, 4, data, 256 );
break;
case 7: /* vrom bank 1 */
ppu2c03b_set_videorom_bank( 0, 4, 4, data, 256 );
break;
}
}
static WRITE8_HANDLER( vsnormal_vrom_banking )
{
/* switch vrom */
ppu2c03b_set_videorom_bank( 0, 0, 8, ( data & 4 ) ? 1 : 0, 512 );
/* bit 1 ( data & 2 ) enables writes to extra ram, we ignore it */
/* move along */
vsnes_in0_w( offset, data );
}
static WRITE_HANDLER( gun_in0_w )
{
static int zapstore;
if (vsnes_do_vrom_bank)
{
/* switch vrom */
ppu2c03b_set_videorom_bank( 0, 0, 8, ( data & 4 ) ? 1 : 0, 512 );
}
/* here we do things a little different */
if ( data & 1 )
{
/* load up the latches */
input_latch[0] = readinputport( 0 );
/* do the gun thing */
if ( vsnes_gun_controller )
{
int x = readinputport( 4 );
int y = readinputport( 5 );
UINT32 pix, color_base;
pen_t *pens = Machine->pens;
/* get the pixel at the gun position */
pix = ppu2c03b_get_pixel( 0, x, y );
/* get the color base from the ppu */
color_base = ppu2c03b_get_colorbase( 0 );
/* look at the screen and see if the cursor is over a bright pixel */
if ( ( pix == pens[color_base+0x20] ) || ( pix == pens[color_base+0x30] ) ||
( pix == pens[color_base+0x33] ) || ( pix == pens[color_base+0x34] ) )
{
input_latch[0] |= 0x40;
}
}
input_latch[1] = readinputport( 1 );
}
if ( ( zapstore & 1 ) && ( !( data & 1 ) ) )
/* reset sound_fix to keep sound from hanging */
{
sound_fix = 0;
}
zapstore = data;
}
