public bool OpJmp(BytecodeStream code)
{
ushort address = code.ReadChar();
if (code.TrySetPosition(address))
{
return(true);
}
return(PushError("参照不可能な箇所にジャンプしようとしました"));
}
public bool OpStoreD(BytecodeStream code)
{
int memPtr = code.ReadChar();
int regId = code.ReadByte();
if (TryGetReg(regId, out uint val))
{
return(_memory.TrySetUi32(memPtr, val));
}
return(PushRegError(regId));
}
public bool OpMoveIW(BytecodeStream code)
{
int regId = code.ReadByte();
ushort imm = code.ReadChar();
if (!TrySetRegUi16(regId, imm))
{
return(PushRegError(regId));
}
return(true);
}
public bool OpLoadD(BytecodeStream code)
{
int regId = code.ReadByte();
int memPtr = code.ReadChar();
if (_memory.TryGetUi32(memPtr, out uint val32))
{
return(TrySetRegUi32(regId, val32));
}
return(PushError($"メモリ範囲外を指定しました => ptr: {memPtr}"));
}
public bool OpSysCall(BytecodeStream code)
{
ushort methodId = code.ReadChar();
if (methodId < 0 || methodId > _methods.Count)
{
return(PushError("組み込み関数IDが不正です"));
}
CreateStatus();
_itr = _methods[methodId].Invoke(_instance, new object[] { _status }) as IEnumerator <int>;
return(true);
}