/// <summary>
/// Handle writing a value to a socket device of a specified type.
/// </summary>
/// <param name="aAddr">The socket device address.</param>
/// <param name="aValue">
/// The value to be written to the socket device.
/// </param>
/// <param name="aVm">
/// The virtual machine instance in which the interrupt
/// should be handled.
/// </param>
public static void Write(SocketAddresses aAddr,
int aValue,
VirtualMachine aVm)
{
if (!WriteSockets.TryGetValue(aAddr, out var device))
{
throw new Exception($"Write: unmapped socket address 0x{aAddr:X}.");
}
device.HandleWrite(aAddr, aValue, aVm);
}
public void HandleRead(SocketAddresses aAddr,
Registers aReg,
VirtualMachine aVm,
SecurityContext aContext)
{
var result = aAddr switch
{
SocketAddresses.ConsoleData => Console.Read(),
_ => 0
};
aVm.Cpu.Registers[(aReg, aContext)] = result;
/// <summary>
/// Handle reading the value from a socket device of a
/// specified type into a register.
/// </summary>
/// <param name="aAddr">The socket device address.</param>
/// <param name="aReg">
/// The register into which the value read from the device
/// should be placed.
/// </param>
/// <param name="aVm">
/// The virtual machine instance in which the interrupt
/// should be handled.
/// </param>
/// <param name="aContext">
/// The security context to be used when writing this
/// value into the register.
/// </param>
public static void Read(SocketAddresses aAddr,
Registers aReg,
VirtualMachine aVm,
SecurityContext aContext)
{
if (!ReadSockets.TryGetValue(aAddr, out var device))
{
throw new Exception($"Read: unmapped socket address 0x{aAddr:X}.");
}
device.HandleRead(aAddr, aReg, aVm, aContext);
}
public SocketAttribute(SocketAddresses aDeviceSocketAddr,
SocketAccess aAccess)
{
SocketAddress = aDeviceSocketAddr;
Access = aAccess;
}
