public static int _vf2iz(float value, int imm5)
{
var scalabValue = MathFloat.Scalb(value, imm5);
var doubleValue = value >= 0 ? MathFloat.Floor(scalabValue) : MathFloat.Ceil(scalabValue);
return(double.IsNaN(doubleValue) ? 0x7FFFFFFF : doubleValue);
}
public static int _cvt_w_s_impl(CpuThreadState cpuThreadState, float fs)
{
//Console.WriteLine("_cvt_w_s_impl: {0}", CpuThreadState.FPR[FS]);
switch (cpuThreadState.Fcr31.Rm)
{
case CpuThreadState.Fcr31Struct.TypeEnum.Rint: return((int)MathFloat.Rint(fs));
case CpuThreadState.Fcr31Struct.TypeEnum.Cast: return((int)MathFloat.Cast(fs));
case CpuThreadState.Fcr31Struct.TypeEnum.Ceil: return((int)MathFloat.Ceil(fs));
case CpuThreadState.Fcr31Struct.TypeEnum.Floor: return((int)MathFloat.Floor(fs));
}
throw new InvalidCastException("RM has an invalid value!!");
//case CpuThreadState.FCR31.TypeEnum.Floor: CpuThreadState.FPR_I[FD] = (int)MathFloat.Floor(CpuThreadState.FPR[FS]); break;
}
public void floor_w_s() => AdvancePC().SetFD_I(MathFloat.Floor(FS));
static public void _cvt_w_s_impl(CpuThreadState CpuThreadState, int FD, int FS)
{
//Console.WriteLine("_cvt_w_s_impl: {0}", CpuThreadState.FPR[FS]);
switch (CpuThreadState.Fcr31.RM)
{
case CpuThreadState.FCR31.TypeEnum.Rint: CpuThreadState.FPR_I[FD] = (int)MathFloat.Rint(CpuThreadState.FPR[FS]); break;
case CpuThreadState.FCR31.TypeEnum.Cast: CpuThreadState.FPR_I[FD] = (int)CpuThreadState.FPR[FS]; break;
case CpuThreadState.FCR31.TypeEnum.Ceil: CpuThreadState.FPR_I[FD] = (int)MathFloat.Ceil(CpuThreadState.FPR[FS]); break;
case CpuThreadState.FCR31.TypeEnum.Floor: CpuThreadState.FPR_I[FD] = (int)MathFloat.Floor(CpuThreadState.FPR[FS]); break;
}
}
