public static DebugInstructionToken Parse(DebugBytecodeReader reader, uint token, Opcode opcode, uint size)
{
var result = new DebugInstructionToken();
result.token = token;
result.Opcode = opcode;
uint read = 0;
uint destIndex = opcode == Opcode.Def ? (uint)1 : 0;
while (read < size)
{
var index = (uint)result.Operands.Count;
IDebugOperand operand;
if (index == destIndex)
{
operand = DebugDestinationOperand.Parse(reader, index);
}
else
{
operand = DebugSourceOperand.Parse(reader, index);
}
result.Operands.Add(operand);
read += operand.WordCount;
}
return(result);
}
public static DebugSourceOperand Parse(DebugBytecodeReader reader, uint index)
{
var token = reader.ReadUInt32($"Operand {index}");
var result = new DebugSourceOperand();
result.WordCount = 1;
result.RegisterNumber = (token & 0x7FF);
result.RegisterType = (RegisterType)(((token >> 28) & 0x7) | ((token >> 8) & 0x18));
result.IsRelativeAddressMode = (token & (1 << 13)) != 0;
result.MinPrecision = ((token >> 12) & 0XC);
result.SwizzleComponents = ((token >> 16) & 0xFF);
result.SourceModifier = (SourceModifier)((token >> 24) & 0xF);
reader.AddNote("RegisterNumber", result.RegisterNumber);
reader.AddNote("RegisterType", result.RegisterType);
reader.AddNote("IsRelativeAddressMode", result.IsRelativeAddressMode);
reader.AddNote("MinPrecision", result.MinPrecision);
reader.AddNote("SwizzleComponents", result.SwizzleComponents);
reader.AddNote("SourceModifier", result.SourceModifier);
return(result);
}
