// Move (From/To) IC
public void mfic()
{
//throw (new NotImplementedException());
MipsMethodEmiter.SaveGPR(RT, () =>
{
MipsMethodEmiter.LoadFieldPtr(typeof(CpuThreadState).GetField("IC"));
MipsMethodEmiter.ILGenerator.Emit(OpCodes.Ldind_I4);
});
}
// S000 <-- S(Matrix)(Column)(Row)
private void _VfpuLoadVectorWithIndexPointer(uint Register, uint Index, uint Size, bool Debug = false)
{
uint Line = BitUtils.Extract(Register, 0, 2); // 0-3
uint Matrix = BitUtils.Extract(Register, 2, 3); // 0-7
LineType LineType = LineType.None;
uint Row = 0;
uint Column = 0;
if (Size == 1)
{
Column = Line;
Row = (Register >> 5) & 3;
}
else
{
uint Offset = (Register & 64) >> (int)(3 + Size);
LineType = ((Register & 32) == 0) ? LineType.Column : LineType.Row;
if (LineType == LineType.Row)
{
Column = Offset + Index;
Row = Line;
}
else
{
Column = Line;
Row = Offset + Index;
}
}
uint RegisterIndex = Matrix * 16 + Row * 4 + Column;
if (Debug)
{
char C = 'S';
if (LineType != LineType.None)
{
C = (LineType == LineType.Row) ? 'R' : 'C';
}
Console.Error.WriteLine(
"_VfpuLoadVectorWithIndexPointer(R={0},I={1},S={2}): " +
"{9}{3}{4}{5} Index({1}) :: Matrix={3}, Column={4}, Row={5}, Type={6}, " +
"RegisterIndex={7}, Line={8}",
Register, Index, Size,
Matrix, Column, Row, LineType,
RegisterIndex,
Line, C
);
}
//if (Reg == null) throw(new InvalidOperationException("Invalid Vfpu register"));
MipsMethodEmiter.LoadFieldPtr(typeof(CpuThreadState).GetField("VFR" + RegisterIndex));
}
