// taken from System.Reflection.Emit.OpCode
internal MsilOpCode(MsilCode value, int flags)
: this()
{
Name = value.ToString().ToLowerInvariant().Replace('_', '.');
StackBehaviourPop = (MsilStackBehaviour)(flags >> 12 & 31);
StackBehaviourPush = (MsilStackBehaviour)(flags >> 17 & 31);
OperandType = (MsilOperandType)(flags & 31);
OpCodeType = (MsilOpCodeType)(flags >> 9 & 7);
Size = (flags >> 22 & 3);
Op1 = (byte)((ushort)value >> 8);
Op2 = (byte)value;
Code = value;
FlowControl = (MsilFlowControl)(flags >> 5 & 15);
// m_endsUncondJmpBlk = ((flags & 16777216) != 0);
// m_stackChange = flags >> 28;
if (Size == 1)
{
MsilOpCodes.SingleByteOpCodes[Op2] = this;
}
else
{
MsilOpCodes.MultiByteOpCodes[Op2] = this;
}
}
public static MsilOpCode GetOpCode(MsilCode code)
{
var value = (int)code;
if ((value & 0xFE00) == 0xFE00)
{
return(MultiByteOpCodes[value & 0xFF]);
}
return(SingleByteOpCodes[value & 0xFF]);
}
public static MsilOpCode GetOpCode(MsilCode code)
{
var value = (int)code;
if ((value & 0xFE00) == 0xFE00)
return MultiByteOpCodes[value & 0xFF];
return SingleByteOpCodes[value & 0xFF];
}