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Implement SSY/SYNC shader instructions (#382)

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* Use a program counter to control shaders' flow

* Cleanup

* Implement SSY/SYNC

* Address feedback

* Fixup commentary

* Fixup Ssy instruction
This commit is contained in:
ReinUsesLisp 2018-08-31 13:14:04 -03:00 • committed by gdkchan
parent 7cb6fd8090
commit 42dc925c3d
11 changed files with 313 additions and 268 deletions
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22
Ryujinx.Graphics/Gal/Shader/ShaderDecoder.cs
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@ -50,17 +50,29 @@ namespace Ryujinx.Graphics.Gal.Shader
{
ShaderIrNode LastNode = Current.GetLastNode();
ShaderIrOp Op = GetInnermostOp(LastNode);
ShaderIrOp InnerOp = GetInnermostOp(LastNode);
if (Op?.Inst == ShaderIrInst.Bra)
if (InnerOp?.Inst == ShaderIrInst.Bra)
{
int Offset = ((ShaderIrOperImm)Op.OperandA).Value;
int Offset = ((ShaderIrOperImm)InnerOp.OperandA).Value;
long Target = Current.EndPosition + Offset;
Current.Branch = Enqueue(Target, Current);
}
foreach (ShaderIrNode Node in Current.Nodes)
{
if (Node is ShaderIrOp CurrOp && CurrOp.Inst == ShaderIrInst.Ssy)
{
int Offset = ((ShaderIrOperImm)CurrOp.OperandA).Value;
long Target = Offset;
Current.Branch = Enqueue(Target, Current);
}
}
if (NodeHasNext(LastNode))
{
Current.Next = Enqueue(Current.EndPosition);
@ -157,7 +169,7 @@ namespace Ryujinx.Graphics.Gal.Shader
{
int Offset = ((int)(OpCode >> 20) << 8) >> 8;
long Target = Position + Offset;
long Target = Position + Offset - Beginning;
DbgOpCode += " (0x" + Target.ToString("x16") + ")";
}
@ -170,7 +182,7 @@ namespace Ryujinx.Graphics.Gal.Shader
continue;
}
Decode(Block, OpCode);
Decode(Block, OpCode, Position);
}
while (!IsFlowChange(Block.GetLastNode()));