private void blockCopy(uint size)
{
while (size > 0)
{
switch (transferDirection)
{
case 0: //To Ram
uint data = 0;
//byte[] cdTest = null;
switch (channelNumber)
{
case 1: //MDECout
//Console.WriteLine("[DMA] MdecOut to ram " + size);
data = dma_transfer.fromMDECout();
break;
case 2: //GPU
data = dma_transfer.fromGPU();
//Console.WriteLine("[DMA] [C2 GPU] Address: {0} Data: {1} Size {2}", (baseAddress & 0x1F_FFFC).ToString("x8"), data.ToString("x8"), size);
break;
case 3: //CD
data = dma_transfer.fromCD();
//if(step == -4) {
// Console.WriteLine("WARNING !!! UNHANDLED REVERSE ON BUFFER CD TRANSFER");
// Console.ReadLine();
//}
//cdTest = dma_transfer.fromCD(size);
//for (int i = 0; i < cdTest.Length; i++) {
// Console.WriteLine(cdTest[i].ToString("x2"));
//}
//dma_transfer.toRAM(dmaAddress & 0x1F_FFFC, cdTest, size);
//return;
//Console.WriteLine("[DMA] [C3 CD] TORAM Address: {0} Data: {1} Size {2}", (baseAddress & 0x1F_FFFC).ToString("x8"), data.ToString("x8"), size);
break;
case 6: //OTC
if (size == 1)
{
data = 0xFF_FFFF;
}
else
{
data = (baseAddress - 4) & 0xFF_FFFF;
}
//Console.WriteLine("[DMA] [C6 OTC] Address: {0} Data: {1}", (baseAddress & 0x1F_FFFC).ToString("x8"), data.ToString("x8"));
break;
default:
data = 0;
//Console.WriteLine("[DMA] [BLOCK COPY] Unsupported Channel (to Ram) " + channelNumber);
break;
}
dma_transfer.toRAM(baseAddress & 0x1F_FFFC, data);
break;
case 1: //From Ram
//Console.WriteLine("Size " + size);
uint[] load = dma_transfer.fromRAM(baseAddress & 0x1F_FFFC, size);
switch (channelNumber)
{
case 0: //MDECin
Console.WriteLine("[DMA] MDEC IN blockCopy " + size);
dma_transfer.toMDECin(load);
return;
case 2: //GPU
dma_transfer.toGPU(load);
return;
default: //MDECin and SPU
//Console.WriteLine("[DMA] [BLOCK COPY] Unsupported Channel (from Ram) " + channelNumber);
return;
}
}
baseAddress += memoryStep;
size--;
}
}
private void blockCopy(uint syncMode, uint addr, uint control)
{
uint dmaAddress = getStartAdress(addr);
uint size = getSize(syncMode, addr);
uint direction = control & 1;
int step = ((control >> 1) & 1) == 0 ? 4 : -4;
uint channel = (addr & 0x70) >> 4;
while (size > 0)
{
switch (direction)
{
case 0: //To Ram
uint data = 0;
//byte[] cdTest = null;
switch (channel)
{
case 2: //GPU
data = dma_transfer.fromGPU();
//Console.WriteLine("[DMA] [C2 GPU] Address: {0} Data: {1} Size {2}", (dmaAddress & 0x1F_FFFC).ToString("x8"), data.ToString("x8"), size);
break;
case 3: //CD
data = dma_transfer.fromCD();
//if(step == -4) {
// Console.WriteLine("WARNING !!! UNHANDLED REVERSE ON BUFFER CD TRANSFER");
// Console.ReadLine();
//}
//cdTest = dma_transfer.fromCD(size);
//for (int i = 0; i < cdTest.Length; i++) {
// Console.WriteLine(cdTest[i].ToString("x2"));
//}
//dma_transfer.toRAM(dmaAddress & 0x1F_FFFC, cdTest, size);
//return;
//Console.WriteLine("[DMA] [C3 CD] TORAM Address: {0} Data: {1} Size {2}", (dmaAddress & 0x1F_FFFC).ToString("x8"), data.ToString("x8"), size);
break;
case 6: //OTC
if (size == 1)
{
data = 0xFF_FFFF;
}
else
{
data = (dmaAddress - 4) & 0xFF_FFFF;
}
//Console.WriteLine("[DMA] [C6 OTC] Address: {0} Data: {1}", (dmaAddress & 0x1F_FFFC).ToString("x8"), data.ToString("x8"));
break;
default:
data = 0;
//Console.WriteLine("[DMA] [BLOCK COPY] Unsupported Channel (to Ram) " + channel);
break;
}
dma_transfer.toRAM(dmaAddress & 0x1F_FFFC, data);
break;
case 1: //From Ram
//Console.WriteLine("Size " + size);
uint[] load = dma_transfer.fromRAM(dmaAddress & 0x1F_FFFC, size);
switch (channel)
{
case 2: //GPU
dma_transfer.toGPU(load);
return;
default: //MDECin and SPU
Console.WriteLine("[DMA] [BLOCK COPY] Unsupported Channel (from Ram) " + channel);
return;
}
}
dmaAddress += (uint)step;
size--;
}
}