public static void Iadd_I32(ShaderIrBlock Block, long OpCode, int Position)
{
ShaderIrNode OperA = OpCode.Gpr8();
ShaderIrNode OperB = OpCode.Imm32_20();
bool NegA = OpCode.Read(56);
OperA = GetAluIneg(OperA, NegA);
ShaderIrOp Op = new ShaderIrOp(ShaderIrInst.Add, OperA, OperB);
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(OpCode.Gpr0(), Op)));
}
public static void Ipa(ShaderIrBlock Block, long OpCode, int Position)
{
ShaderIrNode OperA = OpCode.Abuf28();
ShaderIrNode OperB = OpCode.Gpr20();
ShaderIpaMode Mode = (ShaderIpaMode)(OpCode.Read(54, 3));
ShaderIrMetaIpa Meta = new ShaderIrMetaIpa(Mode);
ShaderIrOp Op = new ShaderIrOp(ShaderIrInst.Ipa, OperA, OperB, null, Meta);
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(OpCode.Gpr0(), Op)));
}
public static ShaderIrNode ExtendTo32(ShaderIrNode Node, bool Signed, int Size)
{
int Shift = 32 - Size;
ShaderIrInst RightShift = Signed
? ShaderIrInst.Asr
: ShaderIrInst.Lsr;
Node = new ShaderIrOp(ShaderIrInst.Lsl, Node, new ShaderIrOperImm(Shift));
Node = new ShaderIrOp(RightShift, Node, new ShaderIrOperImm(Shift));
return(Node);
}
private static void EmitLop(ShaderIrBlock block, long opCode, ShaderOper oper)
{
int subOp = opCode.Read(41, 3);
bool invA = opCode.Read(39);
bool invB = opCode.Read(40);
ShaderIrInst inst = 0;
switch (subOp)
{
case 0: inst = ShaderIrInst.And; break;
case 1: inst = ShaderIrInst.Or; break;
case 2: inst = ShaderIrInst.Xor; break;
}
ShaderIrNode operA = GetAluNot(opCode.Gpr8(), invA);
ShaderIrNode operB;
switch (oper)
{
case ShaderOper.Cr: operB = opCode.Cbuf34(); break;
case ShaderOper.Imm: operB = opCode.Imm19_20(); break;
case ShaderOper.Rr: operB = opCode.Gpr20(); break;
default: throw new ArgumentException(nameof(oper));
}
operB = GetAluNot(operB, invB);
ShaderIrNode op;
if (subOp < 3)
{
op = new ShaderIrOp(inst, operA, operB);
}
else
{
op = operB;
}
ShaderIrNode compare = new ShaderIrOp(ShaderIrInst.Cne, op, new ShaderIrOperImm(0));
block.AddNode(opCode.PredNode(new ShaderIrAsg(opCode.Pred48(), compare)));
block.AddNode(opCode.PredNode(new ShaderIrAsg(opCode.Gpr0(), op)));
}
private static void EmitLop(ShaderIrBlock Block, long OpCode, ShaderOper Oper)
{
int SubOp = (int)(OpCode >> 41) & 3;
bool InvA = ((OpCode >> 39) & 1) != 0;
bool InvB = ((OpCode >> 40) & 1) != 0;
ShaderIrInst Inst = 0;
switch (SubOp)
{
case 0: Inst = ShaderIrInst.And; break;
case 1: Inst = ShaderIrInst.Or; break;
case 2: Inst = ShaderIrInst.Xor; break;
}
ShaderIrNode OperA = GetAluNot(GetOperGpr8(OpCode), InvA);
ShaderIrNode OperB;
switch (Oper)
{
case ShaderOper.CR: OperB = GetOperCbuf34(OpCode); break;
case ShaderOper.Imm: OperB = GetOperImm19_20(OpCode); break;
case ShaderOper.RR: OperB = GetOperGpr20(OpCode); break;
default: throw new ArgumentException(nameof(Oper));
}
OperB = GetAluNot(OperB, InvB);
ShaderIrNode Op;
if (SubOp < 3)
{
Op = new ShaderIrOp(Inst, OperA, OperB);
}
else
{
Op = OperB;
}
ShaderIrNode Compare = new ShaderIrOp(ShaderIrInst.Cne, Op, new ShaderIrOperImm(0));
Block.AddNode(GetPredNode(new ShaderIrAsg(GetOperPred48(OpCode), Compare), OpCode));
Block.AddNode(GetPredNode(new ShaderIrAsg(GetOperGpr0(OpCode), Op), OpCode));
}
private static void EmitLop(ShaderIrBlock Block, long OpCode, ShaderOper Oper)
{
int SubOp = OpCode.Read(41, 3);
bool InvA = OpCode.Read(39);
bool InvB = OpCode.Read(40);
ShaderIrInst Inst = 0;
switch (SubOp)
{
case 0: Inst = ShaderIrInst.And; break;
case 1: Inst = ShaderIrInst.Or; break;
case 2: Inst = ShaderIrInst.Xor; break;
}
ShaderIrNode OperA = GetAluNot(OpCode.Gpr8(), InvA);
ShaderIrNode OperB;
switch (Oper)
{
case ShaderOper.CR: OperB = OpCode.Cbuf34(); break;
case ShaderOper.Imm: OperB = OpCode.Imm19_20(); break;
case ShaderOper.RR: OperB = OpCode.Gpr20(); break;
default: throw new ArgumentException(nameof(Oper));
}
OperB = GetAluNot(OperB, InvB);
ShaderIrNode Op;
if (SubOp < 3)
{
Op = new ShaderIrOp(Inst, OperA, OperB);
}
else
{
Op = OperB;
}
ShaderIrNode Compare = new ShaderIrOp(ShaderIrInst.Cne, Op, new ShaderIrOperImm(0));
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(OpCode.Pred48(), Compare)));
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(OpCode.Gpr0(), Op)));
}
private static void EmitTex(ShaderIrBlock Block, long OpCode, ShaderIrInst Inst)
{
//TODO: Support other formats.
ShaderIrNode OperA = GetOperGpr8(OpCode);
ShaderIrNode OperB = GetOperGpr20(OpCode);
ShaderIrNode OperC = GetOperImm13_36(OpCode);
int LutIndex;
LutIndex = GetOperGpr0(OpCode).Index != ShaderIrOperGpr.ZRIndex ? 1 : 0;
LutIndex |= GetOperGpr28(OpCode).Index != ShaderIrOperGpr.ZRIndex ? 2 : 0;
int ChMask = MaskLut[LutIndex, (OpCode >> 50) & 7];
for (int Ch = 0; Ch < 4; Ch++)
{
ShaderIrOperGpr Dst = new ShaderIrOperGpr(TempRegStart + Ch);
ShaderIrMetaTex Meta = new ShaderIrMetaTex(Ch);
ShaderIrOp Op = new ShaderIrOp(Inst, OperA, OperB, OperC, Meta);
Block.AddNode(GetPredNode(new ShaderIrAsg(Dst, Op), OpCode));
}
int RegInc = 0;
for (int Ch = 0; Ch < 4; Ch++)
{
if (!IsChannelUsed(ChMask, Ch))
{
continue;
}
ShaderIrOperGpr Src = new ShaderIrOperGpr(TempRegStart + Ch);
ShaderIrOperGpr Dst = (RegInc >> 1) != 0
? GetOperGpr28(OpCode)
: GetOperGpr0(OpCode);
Dst.Index += RegInc++ & 1;
if (Dst.Index >= ShaderIrOperGpr.ZRIndex)
{
continue;
}
Block.AddNode(GetPredNode(new ShaderIrAsg(Dst, Src), OpCode));
}
}
public static ShaderIrNode ExtendTo32(ShaderIrNode Node, bool Signed, ShaderIrNode Size)
{
ShaderIrOperImm WordSize = new ShaderIrOperImm(32);
ShaderIrOp Shift = new ShaderIrOp(ShaderIrInst.Sub, WordSize, Size);
ShaderIrInst RightShift = Signed
? ShaderIrInst.Asr
: ShaderIrInst.Lsr;
Node = new ShaderIrOp(ShaderIrInst.Lsl, Node, Shift);
Node = new ShaderIrOp(RightShift, Node, Shift);
return(Node);
}
public static void Fadd_I32(ShaderIrBlock Block, long OpCode)
{
ShaderIrNode OperA = GetOperGpr8(OpCode);
ShaderIrNode OperB = GetOperImmf32_20(OpCode);
bool NegB = ((OpCode >> 53) & 1) != 0;
bool AbsA = ((OpCode >> 54) & 1) != 0;
bool NegA = ((OpCode >> 56) & 1) != 0;
bool AbsB = ((OpCode >> 57) & 1) != 0;
OperA = GetAluFabsFneg(OperA, AbsA, NegA);
OperB = GetAluFabsFneg(OperB, AbsB, NegB);
ShaderIrOp Op = new ShaderIrOp(ShaderIrInst.Fadd, OperA, OperB);
Block.AddNode(GetPredNode(new ShaderIrAsg(GetOperGpr0(OpCode), Op), OpCode));
}
public static void Fadd_I32(ShaderIrBlock block, long opCode, int position)
{
ShaderIrNode operA = opCode.Gpr8();
ShaderIrNode operB = opCode.Immf32_20();
bool negB = opCode.Read(53);
bool absA = opCode.Read(54);
bool negA = opCode.Read(56);
bool absB = opCode.Read(57);
operA = GetAluFabsFneg(operA, absA, negA);
operB = GetAluFabsFneg(operB, absB, negB);
ShaderIrOp op = new ShaderIrOp(ShaderIrInst.Fadd, operA, operB);
block.AddNode(opCode.PredNode(new ShaderIrAsg(opCode.Gpr0(), op)));
}
public static void Fadd_I32(ShaderIrBlock Block, long OpCode, int Position)
{
ShaderIrNode OperA = OpCode.Gpr8();
ShaderIrNode OperB = OpCode.Immf32_20();
bool NegB = OpCode.Read(53);
bool AbsA = OpCode.Read(54);
bool NegA = OpCode.Read(56);
bool AbsB = OpCode.Read(57);
OperA = GetAluFabsFneg(OperA, AbsA, NegA);
OperB = GetAluFabsFneg(OperB, AbsB, NegB);
ShaderIrOp Op = new ShaderIrOp(ShaderIrInst.Fadd, OperA, OperB);
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(OpCode.Gpr0(), Op)));
}
public static void Texq(ShaderIrBlock Block, long OpCode)
{
ShaderIrNode OperD = GetOperGpr0(OpCode);
ShaderIrNode OperA = GetOperGpr8(OpCode);
ShaderTexqInfo Info = (ShaderTexqInfo)((OpCode >> 22) & 0x1f);
ShaderIrMetaTexq Meta0 = new ShaderIrMetaTexq(Info, 0);
ShaderIrMetaTexq Meta1 = new ShaderIrMetaTexq(Info, 1);
ShaderIrNode OperC = GetOperImm13_36(OpCode);
ShaderIrOp Op0 = new ShaderIrOp(ShaderIrInst.Texq, OperA, null, OperC, Meta0);
ShaderIrOp Op1 = new ShaderIrOp(ShaderIrInst.Texq, OperA, null, OperC, Meta1);
Block.AddNode(GetPredNode(new ShaderIrAsg(OperD, Op0), OpCode));
Block.AddNode(GetPredNode(new ShaderIrAsg(OperA, Op1), OpCode)); //Is this right?
}
public static void Texq(ShaderIrBlock block, long opCode, int position)
{
ShaderIrNode operD = opCode.Gpr0();
ShaderIrNode operA = opCode.Gpr8();
ShaderTexqInfo info = (ShaderTexqInfo)(opCode.Read(22, 0x1f));
ShaderIrMetaTexq meta0 = new ShaderIrMetaTexq(info, 0);
ShaderIrMetaTexq meta1 = new ShaderIrMetaTexq(info, 1);
ShaderIrNode operC = opCode.Imm13_36();
ShaderIrOp op0 = new ShaderIrOp(ShaderIrInst.Texq, operA, null, operC, meta0);
ShaderIrOp op1 = new ShaderIrOp(ShaderIrInst.Texq, operA, null, operC, meta1);
block.AddNode(opCode.PredNode(new ShaderIrAsg(operD, op0)));
block.AddNode(opCode.PredNode(new ShaderIrAsg(operA, op1))); //Is this right?
}
public static void Texq(ShaderIrBlock Block, long OpCode, int Position)
{
ShaderIrNode OperD = OpCode.Gpr0();
ShaderIrNode OperA = OpCode.Gpr8();
ShaderTexqInfo Info = (ShaderTexqInfo)(OpCode.Read(22, 0x1f));
ShaderIrMetaTexq Meta0 = new ShaderIrMetaTexq(Info, 0);
ShaderIrMetaTexq Meta1 = new ShaderIrMetaTexq(Info, 1);
ShaderIrNode OperC = OpCode.Imm13_36();
ShaderIrOp Op0 = new ShaderIrOp(ShaderIrInst.Texq, OperA, null, OperC, Meta0);
ShaderIrOp Op1 = new ShaderIrOp(ShaderIrInst.Texq, OperA, null, OperC, Meta1);
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(OperD, Op0)));
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(OperA, Op1))); //Is this right?
}
public static void Texs(ShaderIrBlock Block, long OpCode)
{
//TODO: Support other formats.
ShaderIrNode OperA = GetOperGpr8(OpCode);
ShaderIrNode OperB = GetOperGpr20(OpCode);
ShaderIrNode OperC = GetOperGpr28(OpCode);
ShaderIrNode OperD = GetOperImm13_36(OpCode);
for (int Ch = 0; Ch < 4; Ch++)
{
ShaderIrOp Op = new ShaderIrOp(ShaderIrInst.Texr + Ch, OperA, OperB, OperD);
ShaderIrOperGpr Dst = GetOperGpr0(OpCode);
Dst.Index += Ch;
Block.AddNode(new ShaderIrAsg(Dst, Op));
}
}
private static void EmitTex(ShaderIrBlock Block, long OpCode, ShaderIrInst Inst)
{
//TODO: Support other formats.
ShaderIrNode OperA = GetOperGpr8(OpCode);
ShaderIrNode OperB = GetOperGpr20(OpCode);
ShaderIrNode OperC = GetOperImm13_36(OpCode);
for (int Ch = 0; Ch < 4; Ch++)
{
//Assign it to a temp because the destination registers
//may be used as texture coord input aswell.
ShaderIrOperGpr Dst = new ShaderIrOperGpr(0x100 + Ch);
ShaderIrMetaTex Meta = new ShaderIrMetaTex(Ch);
ShaderIrOp Op = new ShaderIrOp(Inst, OperA, OperB, OperC, Meta);
Block.AddNode(GetPredNode(new ShaderIrAsg(Dst, Op), OpCode));
}
for (int Ch = 0; Ch < 4; Ch++)
{
ShaderIrOperGpr Src = new ShaderIrOperGpr(0x100 + Ch);
ShaderIrOperGpr Dst = (Ch >> 1) != 0
? GetOperGpr28(OpCode)
: GetOperGpr0(OpCode);
Dst.Index += Ch & 1;
if (Dst.Index >= ShaderIrOperGpr.ZRIndex)
{
continue;
}
Block.AddNode(GetPredNode(new ShaderIrAsg(Dst, Src), OpCode));
}
}
private static void EmitAluBinaryF(
ShaderIrBlock Block,
long OpCode,
ShaderOper Oper,
ShaderIrInst Inst)
{
bool Nb = ((OpCode >> 45) & 1) != 0;
bool Aa = ((OpCode >> 46) & 1) != 0;
bool Na = ((OpCode >> 48) & 1) != 0;
bool Ab = ((OpCode >> 49) & 1) != 0;
bool Ad = ((OpCode >> 50) & 1) != 0;
ShaderIrNode OperA = GetOperGpr8(OpCode), OperB;
if (Inst == ShaderIrInst.Fadd)
{
OperA = GetAluAbsNeg(OperA, Aa, Na);
}
switch (Oper)
{
case ShaderOper.CR: OperB = GetOperCbuf34(OpCode); break;
case ShaderOper.Immf: OperB = GetOperImmf19_20(OpCode); break;
case ShaderOper.RR: OperB = GetOperGpr20(OpCode); break;
default: throw new ArgumentException(nameof(Oper));
}
OperB = GetAluAbsNeg(OperB, Ab, Nb);
ShaderIrNode Op = new ShaderIrOp(Inst, OperA, OperB);
Op = GetAluAbs(Op, Ad);
Block.AddNode(GetPredNode(new ShaderIrAsg(GetOperGpr0(OpCode), Op), OpCode));
}
private static void EmitFmul(ShaderIrBlock Block, long OpCode, ShaderOper Oper)
{
bool NegB = ((OpCode >> 48) & 1) != 0;
ShaderIrNode OperA = GetOperGpr8(OpCode), OperB;
switch (Oper)
{
case ShaderOper.CR: OperB = GetOperCbuf34(OpCode); break;
case ShaderOper.Immf: OperB = GetOperImmf19_20(OpCode); break;
case ShaderOper.RR: OperB = GetOperGpr20(OpCode); break;
default: throw new ArgumentException(nameof(Oper));
}
OperB = GetAluFneg(OperB, NegB);
ShaderIrNode Op = new ShaderIrOp(ShaderIrInst.Fmul, OperA, OperB);
Block.AddNode(GetPredNode(new ShaderIrAsg(GetOperGpr0(OpCode), Op), OpCode));
}
private static void EmitAluBinary(
ShaderIrBlock block,
long opCode,
ShaderOper oper,
ShaderIrInst inst)
{
ShaderIrNode operA = opCode.Gpr8(), operB;
switch (oper)
{
case ShaderOper.Cr: operB = opCode.Cbuf34(); break;
case ShaderOper.Imm: operB = opCode.Imm19_20(); break;
case ShaderOper.Rr: operB = opCode.Gpr20(); break;
default: throw new ArgumentException(nameof(oper));
}
ShaderIrNode op = new ShaderIrOp(inst, operA, operB);
block.AddNode(opCode.PredNode(new ShaderIrAsg(opCode.Gpr0(), op)));
}
private static void EmitFmul(ShaderIrBlock Block, long OpCode, ShaderOper Oper)
{
bool NegB = OpCode.Read(48);
ShaderIrNode OperA = OpCode.Gpr8(), OperB;
switch (Oper)
{
case ShaderOper.CR: OperB = OpCode.Cbuf34(); break;
case ShaderOper.Immf: OperB = OpCode.Immf19_20(); break;
case ShaderOper.RR: OperB = OpCode.Gpr20(); break;
default: throw new ArgumentException(nameof(Oper));
}
OperB = GetAluFneg(OperB, NegB);
ShaderIrNode Op = new ShaderIrOp(ShaderIrInst.Fmul, OperA, OperB);
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(OpCode.Gpr0(), Op)));
}
private static void EmitAluBinary(
ShaderIrBlock Block,
long OpCode,
ShaderOper Oper,
ShaderIrInst Inst)
{
ShaderIrNode OperA = GetOperGpr8(OpCode), OperB;
switch (Oper)
{
case ShaderOper.CR: OperB = GetOperCbuf34(OpCode); break;
case ShaderOper.Imm: OperB = GetOperImm19_20(OpCode); break;
case ShaderOper.RR: OperB = GetOperGpr20(OpCode); break;
default: throw new ArgumentException(nameof(Oper));
}
ShaderIrNode Op = new ShaderIrOp(Inst, OperA, OperB);
Block.AddNode(GetPredNode(new ShaderIrAsg(GetOperGpr0(OpCode), Op), OpCode));
}
private static void EmitFfma(ShaderIrBlock Block, long OpCode, ShaderOper Oper)
{
bool NegB = OpCode.Read(48);
bool NegC = OpCode.Read(49);
bool Sat = OpCode.Read(50);
ShaderIrNode OperA = OpCode.Gpr8(), OperB, OperC;
switch (Oper)
{
case ShaderOper.CR: OperB = OpCode.Cbuf34(); break;
case ShaderOper.Immf: OperB = OpCode.Immf19_20(); break;
case ShaderOper.RC: OperB = OpCode.Gpr39(); break;
case ShaderOper.RR: OperB = OpCode.Gpr20(); break;
default: throw new ArgumentException(nameof(Oper));
}
OperB = GetAluFneg(OperB, NegB);
if (Oper == ShaderOper.RC)
{
OperC = GetAluFneg(OpCode.Cbuf34(), NegC);
}
else
{
OperC = GetAluFneg(OpCode.Gpr39(), NegC);
}
ShaderIrOp Op = new ShaderIrOp(ShaderIrInst.Ffma, OperA, OperB, OperC);
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(OpCode.Gpr0(), GetAluFsat(Op, Sat))));
}
private static void EmitFfma(ShaderIrBlock block, long opCode, ShaderOper oper)
{
bool negB = opCode.Read(48);
bool negC = opCode.Read(49);
bool sat = opCode.Read(50);
ShaderIrNode operA = opCode.Gpr8(), operB, operC;
switch (oper)
{
case ShaderOper.Cr: operB = opCode.Cbuf34(); break;
case ShaderOper.Immf: operB = opCode.Immf19_20(); break;
case ShaderOper.Rc: operB = opCode.Gpr39(); break;
case ShaderOper.Rr: operB = opCode.Gpr20(); break;
default: throw new ArgumentException(nameof(oper));
}
operB = GetAluFneg(operB, negB);
if (oper == ShaderOper.Rc)
{
operC = GetAluFneg(opCode.Cbuf34(), negC);
}
else
{
operC = GetAluFneg(opCode.Gpr39(), negC);
}
ShaderIrOp op = new ShaderIrOp(ShaderIrInst.Ffma, operA, operB, operC);
block.AddNode(opCode.PredNode(new ShaderIrAsg(opCode.Gpr0(), GetAluFsat(op, sat))));
}
public static ShaderIrBlock[] Decode(IGalMemory Memory, long Start)
{
Dictionary <long, ShaderIrBlock> Visited = new Dictionary <long, ShaderIrBlock>();
Dictionary <long, ShaderIrBlock> VisitedEnd = new Dictionary <long, ShaderIrBlock>();
Queue <ShaderIrBlock> Blocks = new Queue <ShaderIrBlock>();
ShaderIrBlock Enqueue(long Position, ShaderIrBlock Source = null)
{
if (!Visited.TryGetValue(Position, out ShaderIrBlock Output))
{
Output = new ShaderIrBlock(Position);
Blocks.Enqueue(Output);
Visited.Add(Position, Output);
}
if (Source != null)
{
Output.Sources.Add(Source);
}
return(Output);
}
ShaderIrBlock Entry = Enqueue(Start + HeaderSize);
while (Blocks.Count > 0)
{
ShaderIrBlock Current = Blocks.Dequeue();
FillBlock(Memory, Current, Start + HeaderSize);
//Set child blocks. "Branch" is the block the branch instruction
//points to (when taken), "Next" is the block at the next address,
//executed when the branch is not taken. For Unconditional Branches
//or end of shader, Next is null.
if (Current.Nodes.Count > 0)
{
ShaderIrNode LastNode = Current.GetLastNode();
ShaderIrOp Op = GetInnermostOp(LastNode);
if (Op?.Inst == ShaderIrInst.Bra)
{
int Offset = ((ShaderIrOperImm)Op.OperandA).Value;
long Target = Current.EndPosition + Offset;
Current.Branch = Enqueue(Target, Current);
}
if (NodeHasNext(LastNode))
{
Current.Next = Enqueue(Current.EndPosition);
}
}
//If we have on the graph two blocks with the same end position,
//then we need to split the bigger block and have two small blocks,
//the end position of the bigger "Current" block should then be == to
//the position of the "Smaller" block.
while (VisitedEnd.TryGetValue(Current.EndPosition, out ShaderIrBlock Smaller))
{
if (Current.Position > Smaller.Position)
{
ShaderIrBlock Temp = Smaller;
Smaller = Current;
Current = Temp;
}
Current.EndPosition = Smaller.Position;
Current.Next = Smaller;
Current.Branch = null;
Current.Nodes.RemoveRange(
Current.Nodes.Count - Smaller.Nodes.Count,
Smaller.Nodes.Count);
VisitedEnd[Smaller.EndPosition] = Smaller;
}
VisitedEnd.Add(Current.EndPosition, Current);
}
//Make and sort Graph blocks array by position.
ShaderIrBlock[] Graph = new ShaderIrBlock[Visited.Count];
while (Visited.Count > 0)
{
ulong FirstPos = ulong.MaxValue;
foreach (ShaderIrBlock Block in Visited.Values)
{
if (FirstPos > (ulong)Block.Position)
{
FirstPos = (ulong)Block.Position;
}
}
ShaderIrBlock Current = Visited[(long)FirstPos];
do
{
Graph[Graph.Length - Visited.Count] = Current;
Visited.Remove(Current.Position);
Current = Current.Next;
}while (Current != null);
}
return(Graph);
}
private static void EmitSet(ShaderIrBlock Block, long OpCode, bool IsFloat, ShaderOper Oper)
{
bool NegA = OpCode.Read(43);
bool AbsB = OpCode.Read(44);
bool NegB = OpCode.Read(53);
bool AbsA = OpCode.Read(54);
bool BoolFloat = OpCode.Read(IsFloat ? 52 : 44);
ShaderIrNode OperA = OpCode.Gpr8(), OperB;
switch (Oper)
{
case ShaderOper.CR: OperB = OpCode.Cbuf34(); break;
case ShaderOper.Imm: OperB = OpCode.Imm19_20(); break;
case ShaderOper.Immf: OperB = OpCode.Immf19_20(); break;
case ShaderOper.RR: OperB = OpCode.Gpr20(); break;
default: throw new ArgumentException(nameof(Oper));
}
ShaderIrInst CmpInst;
if (IsFloat)
{
OperA = GetAluFabsFneg(OperA, AbsA, NegA);
OperB = GetAluFabsFneg(OperB, AbsB, NegB);
CmpInst = OpCode.CmpF();
}
else
{
CmpInst = OpCode.Cmp();
}
ShaderIrOp Op = new ShaderIrOp(CmpInst, OperA, OperB);
ShaderIrInst LopInst = OpCode.BLop45();
ShaderIrOperPred PNode = OpCode.Pred39();
ShaderIrNode Imm0, Imm1;
if (BoolFloat)
{
Imm0 = new ShaderIrOperImmf(0);
Imm1 = new ShaderIrOperImmf(1);
}
else
{
Imm0 = new ShaderIrOperImm(0);
Imm1 = new ShaderIrOperImm(-1);
}
ShaderIrNode Asg0 = new ShaderIrAsg(OpCode.Gpr0(), Imm0);
ShaderIrNode Asg1 = new ShaderIrAsg(OpCode.Gpr0(), Imm1);
if (LopInst != ShaderIrInst.Band || !PNode.IsConst)
{
ShaderIrOp Op2 = new ShaderIrOp(LopInst, Op, PNode);
Asg0 = new ShaderIrCond(Op2, Asg0, Not: true);
Asg1 = new ShaderIrCond(Op2, Asg1, Not: false);
}
else
{
Asg0 = new ShaderIrCond(Op, Asg0, Not: true);
Asg1 = new ShaderIrCond(Op, Asg1, Not: false);
}
Block.AddNode(OpCode.PredNode(Asg0));
Block.AddNode(OpCode.PredNode(Asg1));
}
private static void EmitMnmx(ShaderIrBlock Block, long OpCode, bool IsFloat, ShaderOper Oper)
{
bool NegB = OpCode.Read(45);
bool AbsA = OpCode.Read(46);
bool NegA = OpCode.Read(48);
bool AbsB = OpCode.Read(49);
ShaderIrNode OperA = OpCode.Gpr8(), OperB;
if (IsFloat)
{
OperA = GetAluFabsFneg(OperA, AbsA, NegA);
}
else
{
OperA = GetAluIabsIneg(OperA, AbsA, NegA);
}
switch (Oper)
{
case ShaderOper.CR: OperB = OpCode.Cbuf34(); break;
case ShaderOper.Imm: OperB = OpCode.Imm19_20(); break;
case ShaderOper.Immf: OperB = OpCode.Immf19_20(); break;
case ShaderOper.RR: OperB = OpCode.Gpr20(); break;
default: throw new ArgumentException(nameof(Oper));
}
if (IsFloat)
{
OperB = GetAluFabsFneg(OperB, AbsB, NegB);
}
else
{
OperB = GetAluIabsIneg(OperB, AbsB, NegB);
}
ShaderIrOperPred Pred = OpCode.Pred39();
ShaderIrOp Op;
ShaderIrInst MaxInst = IsFloat ? ShaderIrInst.Fmax : ShaderIrInst.Max;
ShaderIrInst MinInst = IsFloat ? ShaderIrInst.Fmin : ShaderIrInst.Min;
if (Pred.IsConst)
{
bool IsMax = OpCode.Read(42);
Op = new ShaderIrOp(IsMax
? MaxInst
: MinInst, OperA, OperB);
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(OpCode.Gpr0(), Op)));
}
else
{
ShaderIrNode PredN = OpCode.Pred39N();
ShaderIrOp OpMax = new ShaderIrOp(MaxInst, OperA, OperB);
ShaderIrOp OpMin = new ShaderIrOp(MinInst, OperA, OperB);
ShaderIrAsg AsgMax = new ShaderIrAsg(OpCode.Gpr0(), OpMax);
ShaderIrAsg AsgMin = new ShaderIrAsg(OpCode.Gpr0(), OpMin);
Block.AddNode(OpCode.PredNode(new ShaderIrCond(PredN, AsgMax, Not: true)));
Block.AddNode(OpCode.PredNode(new ShaderIrCond(PredN, AsgMin, Not: false)));
}
}
private static void EmitIadd3(ShaderIrBlock Block, long OpCode, ShaderOper Oper)
{
int Mode = OpCode.Read(37, 3);
bool Neg1 = OpCode.Read(51);
bool Neg2 = OpCode.Read(50);
bool Neg3 = OpCode.Read(49);
int Height1 = OpCode.Read(35, 3);
int Height2 = OpCode.Read(33, 3);
int Height3 = OpCode.Read(31, 3);
ShaderIrNode OperB;
switch (Oper)
{
case ShaderOper.CR: OperB = OpCode.Cbuf34(); break;
case ShaderOper.Imm: OperB = OpCode.Imm19_20(); break;
case ShaderOper.RR: OperB = OpCode.Gpr20(); break;
default: throw new ArgumentException(nameof(Oper));
}
ShaderIrNode ApplyHeight(ShaderIrNode Src, int Height)
{
if (Oper != ShaderOper.RR)
{
return(Src);
}
switch (Height)
{
case 0: return(Src);
case 1: return(new ShaderIrOp(ShaderIrInst.And, Src, new ShaderIrOperImm(0xffff)));
case 2: return(new ShaderIrOp(ShaderIrInst.Lsr, Src, new ShaderIrOperImm(16)));
default: throw new InvalidOperationException();
}
}
ShaderIrNode Src1 = GetAluIneg(ApplyHeight(OpCode.Gpr8(), Height1), Neg1);
ShaderIrNode Src2 = GetAluIneg(ApplyHeight(OperB, Height2), Neg2);
ShaderIrNode Src3 = GetAluIneg(ApplyHeight(OpCode.Gpr39(), Height3), Neg3);
ShaderIrOp Sum = new ShaderIrOp(ShaderIrInst.Add, Src1, Src2);
if (Oper == ShaderOper.RR)
{
switch (Mode)
{
case 1: Sum = new ShaderIrOp(ShaderIrInst.Lsr, Sum, new ShaderIrOperImm(16)); break;
case 2: Sum = new ShaderIrOp(ShaderIrInst.Lsl, Sum, new ShaderIrOperImm(16)); break;
}
}
//Note: Here there should be a "+ 1" when carry flag is set
//but since carry is mostly ignored by other instructions, it's excluded for now
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(OpCode.Gpr0(), new ShaderIrOp(ShaderIrInst.Add, Sum, Src3))));
}
private static void EmitXmad(ShaderIrBlock Block, long OpCode, ShaderOper Oper)
{
//TODO: Confirm SignAB/C, it is just a guess.
//TODO: Implement Mode 3 (CSFU), what it does?
bool SignAB = OpCode.Read(48);
bool SignC = OpCode.Read(49);
bool HighB = OpCode.Read(52);
bool HighA = OpCode.Read(53);
int Mode = OpCode.Read(50, 7);
ShaderIrNode OperA = OpCode.Gpr8(), OperB, OperC;
ShaderIrOperImm Imm16 = new ShaderIrOperImm(16);
ShaderIrOperImm ImmMsk = new ShaderIrOperImm(0xffff);
ShaderIrInst ShiftAB = SignAB ? ShaderIrInst.Asr : ShaderIrInst.Lsr;
ShaderIrInst ShiftC = SignC ? ShaderIrInst.Asr : ShaderIrInst.Lsr;
if (HighA)
{
OperA = new ShaderIrOp(ShiftAB, OperA, Imm16);
}
switch (Oper)
{
case ShaderOper.CR: OperB = OpCode.Cbuf34(); break;
case ShaderOper.Imm: OperB = OpCode.Imm19_20(); break;
case ShaderOper.RC: OperB = OpCode.Gpr39(); break;
case ShaderOper.RR: OperB = OpCode.Gpr20(); break;
default: throw new ArgumentException(nameof(Oper));
}
bool ProductShiftLeft = false, Merge = false;
if (Oper == ShaderOper.RC)
{
OperC = OpCode.Cbuf34();
}
else
{
OperC = OpCode.Gpr39();
ProductShiftLeft = OpCode.Read(36);
Merge = OpCode.Read(37);
}
switch (Mode)
{
//CLO.
case 1: OperC = ExtendTo32(OperC, SignC, 16); break;
//CHI.
case 2: OperC = new ShaderIrOp(ShiftC, OperC, Imm16); break;
}
ShaderIrNode OperBH = OperB;
if (HighB)
{
OperBH = new ShaderIrOp(ShiftAB, OperBH, Imm16);
}
ShaderIrOp MulOp = new ShaderIrOp(ShaderIrInst.Mul, OperA, OperBH);
if (ProductShiftLeft)
{
MulOp = new ShaderIrOp(ShaderIrInst.Lsl, MulOp, Imm16);
}
ShaderIrOp AddOp = new ShaderIrOp(ShaderIrInst.Add, MulOp, OperC);
if (Merge)
{
AddOp = new ShaderIrOp(ShaderIrInst.And, AddOp, ImmMsk);
OperB = new ShaderIrOp(ShaderIrInst.Lsl, OperB, Imm16);
AddOp = new ShaderIrOp(ShaderIrInst.Or, AddOp, OperB);
}
if (Mode == 4)
{
OperB = new ShaderIrOp(ShaderIrInst.Lsl, OperB, Imm16);
AddOp = new ShaderIrOp(ShaderIrInst.Or, AddOp, OperB);
}
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(OpCode.Gpr0(), AddOp)));
}
private static void EmitSetp(ShaderIrBlock Block, long OpCode, bool IsFloat, ShaderOper Oper)
{
bool AbsA = OpCode.Read(7);
bool NegP = OpCode.Read(42);
bool NegA = OpCode.Read(43);
bool AbsB = OpCode.Read(44);
ShaderIrNode OperA = OpCode.Gpr8(), OperB;
switch (Oper)
{
case ShaderOper.CR: OperB = OpCode.Cbuf34(); break;
case ShaderOper.Imm: OperB = OpCode.Imm19_20(); break;
case ShaderOper.Immf: OperB = OpCode.Immf19_20(); break;
case ShaderOper.RR: OperB = OpCode.Gpr20(); break;
default: throw new ArgumentException(nameof(Oper));
}
ShaderIrInst CmpInst;
if (IsFloat)
{
OperA = GetAluFabsFneg(OperA, AbsA, NegA);
OperB = GetAluFabs(OperB, AbsB);
CmpInst = OpCode.CmpF();
}
else
{
CmpInst = OpCode.Cmp();
}
ShaderIrOp Op = new ShaderIrOp(CmpInst, OperA, OperB);
ShaderIrOperPred P0Node = OpCode.Pred3();
ShaderIrOperPred P1Node = OpCode.Pred0();
ShaderIrOperPred P2Node = OpCode.Pred39();
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(P0Node, Op)));
ShaderIrInst LopInst = OpCode.BLop45();
if (LopInst == ShaderIrInst.Band && P1Node.IsConst && P2Node.IsConst)
{
return;
}
ShaderIrNode P2NNode = P2Node;
if (NegP)
{
P2NNode = new ShaderIrOp(ShaderIrInst.Bnot, P2NNode);
}
Op = new ShaderIrOp(ShaderIrInst.Bnot, P0Node);
Op = new ShaderIrOp(LopInst, Op, P2NNode);
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(P1Node, Op)));
Op = new ShaderIrOp(LopInst, P0Node, P2NNode);
Block.AddNode(OpCode.PredNode(new ShaderIrAsg(P0Node, Op)));
}
private static void EmitI2i(ShaderIrBlock Block, long OpCode, ShaderOper Oper)
{
IntType Type = GetIntType(OpCode);
if (Type == IntType.U64 ||
Type == IntType.S64)
{
//TODO: 64-bits support.
//Note: GLSL doesn't support 64-bits integers.
throw new NotImplementedException();
}
int Sel = (int)(OpCode >> 41) & 3;
bool NegA = ((OpCode >> 45) & 1) != 0;
bool AbsA = ((OpCode >> 49) & 1) != 0;
bool SatA = ((OpCode >> 50) & 1) != 0;
ShaderIrNode OperA;
switch (Oper)
{
case ShaderOper.CR: OperA = GetOperCbuf34(OpCode); break;
case ShaderOper.Immf: OperA = GetOperImmf19_20(OpCode); break;
case ShaderOper.RR: OperA = GetOperGpr20(OpCode); break;
default: throw new ArgumentException(nameof(Oper));
}
OperA = GetAluIabsIneg(OperA, AbsA, NegA);
bool Signed = Type >= IntType.S8;
int Shift = Sel * 8;
int Size = 8 << ((int)Type & 3);
if (Shift != 0)
{
OperA = new ShaderIrOp(ShaderIrInst.Asr, OperA, new ShaderIrOperImm(Shift));
}
if (Size < 32)
{
uint Mask = uint.MaxValue >> (32 - Size);
if (SatA)
{
uint CMin = 0;
uint CMax = Mask;
if (Signed)
{
uint HalfMask = Mask >> 1;
CMin -= HalfMask + 1;
CMax = HalfMask;
}
ShaderIrOperImm IMin = new ShaderIrOperImm((int)CMin);
ShaderIrOperImm IMax = new ShaderIrOperImm((int)CMax);
OperA = new ShaderIrOp(Signed
? ShaderIrInst.Clamps
: ShaderIrInst.Clampu, OperA, IMin, IMax);
}
else
{
OperA = ExtendTo32(OperA, Signed, Size);
}
}
Block.AddNode(GetPredNode(new ShaderIrAsg(GetOperGpr0(OpCode), OperA), OpCode));
}
