public x86DataLocation Deallocate(x86DataLocationType Type, int Size, int Align = -1)
{
var Ret = GetAllocated(Type, Size, Align);
SetUnused(Ret);
return(Ret);
}
public x86DataLocation GetPosition(FunctionScope Scope, int Size, int Align = 1,
x86DataLocationType PositionTypes = x86DataLocationType.GRegMem)
{
if ((PositionTypes & x86DataLocationType.General) != 0)
{
if (CanAllocGReg(Size))
{
return(GetGRegister(Size));
}
}
if ((PositionTypes & x86DataLocationType.SSEReg) != 0)
{
if (CanAllocSSEReg() && Size <= Arch.SSERegSize)
{
return(GetSSERegister(Arch.SSERegSize));
}
}
if ((PositionTypes & x86DataLocationType.Memory) != 0)
{
return(GetStackPosition(Scope, Size, Align));
}
return(null);
}
public x86DataLocation Allocate(Type T, x86DataLocationType DataCalcPos = x86DataLocationType.None, x86DataList CantBe = null)
{
if (DataCalcPos == x86DataLocationType.None)
{
DataCalcPos = x86Identifiers.GetPossibleLocations(T);
}
return(Allocate(T.Size, T.Align, DataCalcPos, CantBe));
}
private x86DataLocation AllocMultiPos(int Size, int Align, x86DataLocationType DataCalcPos, x86DataList CantBe, int PartSize)
{
var Count = Size / PartSize;
var Positions = new x86DataLocation[Count];
for (var i = 0; i < Count; i++)
{
Positions[i] = Allocate(Arch.RegSize, Align, DataCalcPos, CantBe);
if (Positions[i] == null)
{
return(null);
}
}
return(new x86MultiLocation(Arch, Size, Positions));
}
public void Reset()
{
FPUItemsOnStack = 0;
UsedFPUStack = 0;
SameAllocationAsType = x86SameAllocationAsType.None;
Flags &= x86NodeFlags.LeftByReset;
DataCalcPos = x86DataLocationType.None;
PreferredOutput = null;
UsedData = null;
UsedDataBySelf = null;
TempCantBe = null;
PreAllocate = null;
Properties = new x86DataProperties();
NeededTempByPlugin = new x86NeededTempData();
Output = null;
ParameterBytes = 0;
OriginalShiftSize = 0;
}
public x86DataLocation GetAllocated(x86DataLocationType Type, int Size, int Align = -1)
{
if ((Type & x86DataLocationType.General) != 0)
{
var Sequence = x86CallConv.AllocationSequence.GRegisters;
var Mask = new x86RegisterMask(Size);
var HighMask = new x86RegisterMask(1, Size);
if ((Type & x86DataLocationType.OneByte) == 0)
{
for (var i = 0; i < Sequence.Length; i++)
{
var Reg = Sequence[i];
if (Arch.IsGRegisterExists(Reg, Mask) && !Arch.IsGRegisterExists(Reg, 0, 1) && !GRegisters.IsFree(Reg, Mask))
{
return(new x86GRegLocation(Arch, Reg, Mask));
}
}
for (var i = 0; i < Sequence.Length; i++)
{
var Reg = Sequence[i];
if (Arch.IsGRegisterExists(Reg, Mask) && !GRegisters.IsFree(Reg, Mask))
{
return(new x86GRegLocation(Arch, Reg, Mask));
}
}
}
else
{
for (var i = 0; i < Sequence.Length; i++)
{
var Reg = Sequence[i];
if (Arch.IsGRegisterExists(Reg, Mask) && Arch.IsGRegisterExists(Reg, 0, 1) && !GRegisters.IsFree(Reg, Mask))
{
return(new x86GRegLocation(Arch, Reg, Mask));
}
}
}
}
if ((Type & x86DataLocationType.SSEReg) != 0)
{
var Sequence = x86CallConv.AllocationSequence.SSERegisters;
for (var i = 0; i < Sequence.Length; i++)
{
var Reg = Sequence[i];
if (Reg < Arch.RegCount && !SSERegisters.IsFree(Reg))
{
return(new x86SSERegLocation(Arch, Reg, Size));
}
}
}
if ((Type & x86DataLocationType.Memory) != 0)
{
StackOffset = DataStoring.AlignWithDecrease(StackOffset - Size, Align);
return(new x86StackLocation(Arch, FuncScope, StackOffset, Size, false));
}
return(null);
}
public x86DataLocation Allocate(int Size, int Align, x86DataLocationType DataCalcPos = x86DataLocationType.GRegMem,
x86DataList CantBe = null)
{
if ((DataCalcPos & x86DataLocationType.SSEReg) != 0)
{
if (Size > Arch.SSERegSize)
{
if (SSERegAvaiable())
{
var Ret = AllocMultiPos(Size, Align, DataCalcPos, CantBe, 16);
if (Ret != null)
{
return(Ret);
}
}
}
else
{
var SSERegList = CantBe != null ? CantBe.SSERegisters : new x86RegisterList();
var Ret = AllocSSERegister(16, SSERegList);
if (Ret != null)
{
return(Ret);
}
}
}
if ((DataCalcPos & x86DataLocationType.General) != 0)
{
if (Size > Arch.RegSize)
{
if (RegAvaiable())
{
var Ret = AllocMultiPos(Size, Align, DataCalcPos, CantBe, Arch.RegSize);
if (Ret != null)
{
return(Ret);
}
}
}
else
{
var GRegList = CantBe != null ? CantBe.GRegisters : new x86GRegisterList();
var Ret = AllocGRegister(Size, (DataCalcPos & x86DataLocationType.OneByte) != 0, GRegList);
if (Ret != null)
{
return(Ret);
}
}
}
if ((DataCalcPos & x86DataLocationType.Memory) != 0)
{
var Ret = AllocMemory(Size, Align);
if (Ret != null)
{
return(Ret);
}
}
return(null);
}