/// <summary>
/// 跳转到指定指令处，由bx指定
/// </summary>
/// <param name="i"></param>
public void JMP(Instruction i)
{
int a = 0, bx = 0;
i.ASBX(ref a, ref bx);
luaState.AddPC(bx);
if (a != 0)
{
}
}
/// <summary>
///
/// </summary>
public void ForPrep(Instruction i)
{
int a = 0, sbx = 0;
i.ASBX(ref a, ref sbx);
luaState.PushValueFromIndex(a + 3);
luaState.PushValueFromIndex(a + 1);
luaState.MathOperation(TokenType.Minus);
luaState.Replace(a + 1);
luaState.AddPC(sbx);
}
/// <summary>
/// 数值for循环指令，
/// </summary>
/// <param name="i"></param>
public void ForLoop(Instruction i)
{
int a = 0, sbx = 0;
i.ASBX(ref a, ref sbx);
luaState.PushValueFromIndex(a + 3);
luaState.PushValueFromIndex(a + 1);
luaState.MathOperation(TokenType.Plus);
luaState.Replace(a + 1);
bool isPositionStep = luaState.ToNumber(a + 2) >= 0;
if (isPositionStep && (bool)luaState.Compare(a, a + 1, TokenType.SmallerEqual).OValue || !isPositionStep && (bool)luaState.Compare(a + 1, a, TokenType.SmallerEqual).OValue)
{
luaState.AddPC(sbx);
luaState.CopyTo(a + 1, a + 4);
}
}
