static unsafe void TestMemoryBlock(MemoryBlock memoryBlock)
{
uint[] values = new uint[] { 1, 101, 2 ^ 16 + 2, int.MaxValue };
memoryBlock.Write32(values);
uint[] read = new uint[4];
memoryBlock.Read32(read);
for (int i = 0; i < 4; i++)
{
if (values[i] != read[i])
{
Assert.Fail($"Values read differ at {i}. Expected: {values[i]} Actual: {read[i]}");
}
}
Assert.Succeed("Writing and reading uints works");
byte *ptr = (byte *)memoryBlock.Base;
Assert.AreEqual(1, *ptr, "Expected 1 in first byte of memory block when checking using pointer");
Assert.AreEqual(0, *(ptr + 3), "Expected 0 in fourth byte of memory block when checking using pointer");
byte[] valueBytes = new byte[] { 1, 0, 0, 0 };
byte[] readByte = new byte[4];
memoryBlock.Read8(readByte);
Assert.AreEqual(valueBytes, readByte, "Reading bytes works");
valueBytes[0] = 65;
valueBytes[1] = 127;
memoryBlock.Write8(valueBytes);
memoryBlock.Read8(readByte);
Assert.AreEqual(valueBytes, readByte, "Writing bytes works");
memoryBlock.Fill(101);
memoryBlock.Read8(readByte);
Assert.AreEqual(new byte[] { 101, 101, 101, 101 }, readByte, "Filling works");
values = new uint[] { 0x65656565, 987893745, 0x65656565, 0x65656565 };
memoryBlock.Fill(4, 1, 987893745);
memoryBlock.Read32(read);
Assert.AreEqual(values, read, "Using Fill(int, int, int) works");
}
public static void ClearScreen()
{
x = 0;
y = 0;
videoMemory.Fill(fill);
SetReadPos(0);
writeY = 0;
SetCursor(x, y);
}
// clear screen
public static void Clear(byte color)
{
uint i = 0;
// text mode
if (IsTextMode)
{
for (i = 0; i < (Width * Height) * 2; i += 2)
{
Buffer[i] = 0x20; Buffer[i + 1] = color;
}
}
// graphics mode
else if (!IsTextMode && !IsDoubleBuffered)
{
for (i = 0; i < Width * Height; i++)
{
Buffer[i] = color;
}
}
// double buffered graphics mode
else if (!IsTextMode && IsDoubleBuffered)
{
BackBuffer.Fill(color);
}
}
public HBAPRDTEntry(uint aAddress, uint aEntry)
{
xAddress = aAddress;
xEntry = aEntry;
xBlock = new MemoryBlock(aAddress + (0x10 * xEntry), 0x10);
xBlock.Fill(0);
}
public HBACommandHeader(uint aAddress, uint aSlot)
{
xAddress = aAddress;
xSlot = aSlot;
xBlock = new MemoryBlock(aAddress + (32 * aSlot), 0x20);
xBlock.Fill(0);
}
public HBACommandTable(uint aAddress, uint aPRDTCount)
{
xAddress = aAddress;
xBlock = new MemoryBlock(aAddress, 0x80);
xBlock.Fill(0);
PRDTEntry = new HBAPRDTEntry[aPRDTCount];
for (uint i = 0; i < aPRDTCount; i++)
{
PRDTEntry[i] = new HBAPRDTEntry(aAddress + 0x80, i);
}
}
internal void DoubleBuffer_Clear(uint color)
{
Video_Memory.Fill(FrameSize, FrameSize, color);
}
public void ClearVRAM(uint value)
{
LinearFrameBuffer.Fill(value);
}
/// <summary>
/// Initialize AHCI instance.
/// </summary>
/// <param name="aSectorSize">A sector size.</param>
public AHCI(uint aSectorSize)
{
DataBlock = new Core.MemoryBlock(0x0046C000, aSectorSize * 1024);
DataBlock.Fill(0);
}
/// <summary>
/// Clear screen to specified color.
/// </summary>
/// <param name="color">Color.</param>
/// <exception cref="Exception">Thrown on memory access violation.</exception>
/// <exception cref="NotImplementedException">Thrown if VMWare SVGA 2 has no rectange copy capability</exception>
public void Clear(uint color)
{
VideoMemory.Fill(FrameSize, FrameSize, color);
}
public FISRegisterH2D(uint aAddress)
{
xAddress = aAddress;
xBlock = new MemoryBlock(aAddress, 20);
xBlock.Fill(0);
}