/* mapper 33: Taito TC0190*/
static void map33_write(uint32 address, uint8 value)
{
int page = (address >> 13) & 3;
int reg = address & 3;
switch (page)
{
case 0: /* $800X */
switch (reg)
{
case 0:
mmc_bankrom(8, 0x8000, value);
break;
case 1:
mmc_bankrom(8, 0xA000, value);
break;
case 2:
mmc_bankvrom(2, 0x0000, value);
break;
case 3:
mmc_bankvrom(2, 0x0800, value);
break;
}
break;
case 1: /* $A00X */
{
int loc = 0x1000 + (reg << 10);
mmc_bankvrom(1, loc, value);
}
break;
case 2: /* $C00X */
case 3: /* $E00X */
switch (reg)
{
case 0:
/* irqs maybe ? */
//break;
case 1:
/* this doesn't seem to work just right */
if (value & 1)
ppu_mirror(0, 0, 1, 1); /* horizontal */
else
ppu_mirror(0, 1, 0, 1);
break;
default:
break;
}
break;
}
}
/* mapper 15: Contra 100-in-1 */
static void map15_write(uint32 address, uint8 value)
{
int bank = value & 0x3F;
uint8 swap = (value & 0x80) >> 7;
switch (address & 0x3)
{
case 0:
mmc_bankrom(8, 0x8000, (bank << 1) + swap);
mmc_bankrom(8, 0xA000, (bank << 1) + (swap ^ 1));
mmc_bankrom(8, 0xC000, ((bank + 1) << 1) + swap);
mmc_bankrom(8, 0xE000, ((bank + 1) << 1) + (swap ^ 1));
if (value & 0x40)
ppu_mirror(0, 0, 1, 1); /* horizontal */
else
ppu_mirror(0, 1, 0, 1); /* vertical */
break;
case 1:
mmc_bankrom(8, 0xC000, (bank << 1) + swap);
mmc_bankrom(8, 0xE000, (bank << 1) + (swap ^ 1));
break;
case 2:
if (swap)
{
mmc_bankrom(8, 0x8000, (bank << 1) + 1);
mmc_bankrom(8, 0xA000, (bank << 1) + 1);
mmc_bankrom(8, 0xC000, (bank << 1) + 1);
mmc_bankrom(8, 0xE000, (bank << 1) + 1);
}
else
{
mmc_bankrom(8, 0x8000, (bank << 1));
mmc_bankrom(8, 0xA000, (bank << 1));
mmc_bankrom(8, 0xC000, (bank << 1));
mmc_bankrom(8, 0xE000, (bank << 1));
}
break;
case 3:
mmc_bankrom(8, 0xC000, (bank << 1) + swap);
mmc_bankrom(8, 0xE000, (bank << 1) + (swap ^ 1));
if (value & 0x40)
ppu_mirror(0, 0, 1, 1); /* horizontal */
else
ppu_mirror(0, 1, 0, 1); /* vertical */
break;
default:
break;
}
}
static void map93_write(uint32 address, uint8 value)
{
UNUSED(address);
/* ($8000-$FFFF) D7-D4 = switch $8000-$BFFF D0: mirror */
mmc_bankrom(16, 0x8000, value >> 4);
if (value & 1)
ppu_mirror(0, 1, 0, 1); /* vert */
else
ppu_mirror(0, 0, 1, 1); /* horiz */
}
