public PPU(NESCore nes)
{
this.nes = nes;
int vRAM = 0;
if (nes.rom.vROM == 0 || nes.rom.mapper == 19 || nes.rom.mapper == 210)
vRAM += 8;
PPUMemory = new MemoryStore(4, nes.rom.vROM, vRAM, true); //4 hardwired to make doing extra nametables less insane.
switch (nes.nesRegion)
{
default:
case SystemType.NTSC:
vblankEnd = 261;
break;
case SystemType.PAL:
vblankEnd = 311;
break;
}
horzFlipTable = new byte[256];
for (int i = 0; i < 256; i++)
{
horzFlipTable[i] = 0;
if ((i & 0x80) != 0)
horzFlipTable[i] |= 0x01;
if ((i & 0x40) != 0)
horzFlipTable[i] |= 0x02;
if ((i & 0x20) != 0)
horzFlipTable[i] |= 0x04;
if ((i & 0x10) != 0)
horzFlipTable[i] |= 0x08;
if ((i & 0x08) != 0)
horzFlipTable[i] |= 0x10;
if ((i & 0x04) != 0)
horzFlipTable[i] |= 0x20;
if ((i & 0x02) != 0)
horzFlipTable[i] |= 0x40;
if ((i & 0x01) != 0)
horzFlipTable[i] |= 0x80;
}
}
public void updateMemory(MemoryStore memory, int max)
{
this.memory = memory;
this.updated = true;
this.max = max;
}
public SPPU(NESCore nes)
{
this.nes = nes;
int vRAM = 0;
if (nes.rom.vROM == 0 || nes.rom.mapper == 19 || nes.rom.mapper == 210)
vRAM += 8;
PPUMemory = new MemoryStore(4, nes.rom.vROM, vRAM, true); //4 hardwired to make doing extra nametables less insane.
for (int i = 0; i < 256; i++)
zeroGray[i] = 0x3F;
switch (nes.nesRegion)
{
default:
case SystemType.NTSC:
vblankEnd = 261;
break;
case SystemType.PAL:
vblankEnd = 312;
break;
}
}
