public Instruction Decode(int offset)
{
Instruction instruction = null;
var opcode = (OpCode) File.Code[offset];
switch (opcode)
{
case OpCode.PushS:
instruction = new InstructionPush(typeof (short));
break;
case OpCode.Push:
instruction = new InstructionPush(typeof (uint));
break;
case OpCode.PushF:
instruction = new InstructionPush(typeof (float));
break;
case OpCode.PushString:
instruction = new InstructionPush(typeof (string));
break;
case OpCode.Jump:
case OpCode.JumpFalse:
case OpCode.JumpTrue:
case OpCode.Call:
instruction = new InstructionBranch();
break;
case OpCode.CallNative:
instruction = new InstructionNative();
break;
case OpCode.FnBegin:
instruction = new InstructionFnBegin();
break;
case OpCode.FnEnd:
instruction = new InstructionFnEnd();
break;
case OpCode.Switch:
instruction = new InstructionSwitch();
break;
default:
if ((int) opcode >= 80)
{
instruction = new InstructionPush(null);
}
else if ((int) opcode <= 78)
{
instruction = new Instruction();
}
else
{
Debug.Assert(false);
}
break;
}
instruction.Decode(File.Code, offset);
return instruction;
}
public HLInstruction(Instruction instruction)
{
Instruction = instruction;
if (instruction is InstructionBranch || instruction is InstructionSwitch)
{
BranchCodesPaths = new Dictionary<object, CodePath>();
}
}