public void OP_REGION2() { var X2 = (short)BitUtils.Extract(Params24, 0, 10); var Y2 = (short)BitUtils.Extract(Params24, 10, 10); GpuState->Viewport.RegionBottomRight.X = (short)(X2 + 1); GpuState->Viewport.RegionBottomRight.Y = (short)(Y2 + 1); }