Implement ATOM shader instruction (#1687)

* Implement ATOM shader instruction

* Fix reduction type decoding

4 files changed, 9 insertions, 20 deletions

diff --git a/Ryujinx.Graphics.Shader/Decoders/AtomicOp.cs b/Ryujinx.Graphics.Shader/Decoders/AtomicOp.cs
index 065a57c4..19955192 100644
--- a/Ryujinx.Graphics.Shader/Decoders/AtomicOp.cs
+++ b/Ryujinx.Graphics.Shader/Decoders/AtomicOp.cs
@@ -10,6 +10,7 @@ namespace Ryujinx.Graphics.Shader.Decoders
         BitwiseAnd         = 5,
         BitwiseOr          = 6,
         BitwiseExclusiveOr = 7,
-        Swap               = 8
+        Swap               = 8,
+        SafeAdd            = 10 // Only supported by ATOM.
     }
 }
\ No newline at end of file
diff --git a/Ryujinx.Graphics.Shader/Decoders/OpCodeAtom.cs b/Ryujinx.Graphics.Shader/Decoders/OpCodeAtom.cs
index 1bf5d0cd..006a91f3 100644
--- a/Ryujinx.Graphics.Shader/Decoders/OpCodeAtom.cs
+++ b/Ryujinx.Graphics.Shader/Decoders/OpCodeAtom.cs
@@ -8,10 +8,6 @@ namespace Ryujinx.Graphics.Shader.Decoders
         public Register Ra { get; }
         public Register Rb { get; }
 
-        public ReductionType Type { get; }
-
-        public int Offset { get; }
-
         public bool Extended { get; }
 
         public AtomicOp AtomicOp { get; }
@@ -24,15 +20,6 @@ namespace Ryujinx.Graphics.Shader.Decoders
             Ra = new Register(opCode.Extract(8,  8), RegisterType.Gpr);
             Rb = new Register(opCode.Extract(20, 8), RegisterType.Gpr);
 
-            Type = (ReductionType)opCode.Extract(28, 2);
-
-            if (Type == ReductionType.FP32FtzRn)
-            {
-                Type = ReductionType.S64;
-            }
-
-            Offset = opCode.Extract(30, 22);
-
             Extended = opCode.Extract(48);
 
             AtomicOp = (AtomicOp)opCode.Extract(52, 4);
diff --git a/Ryujinx.Graphics.Shader/Decoders/OpCodeTable.cs b/Ryujinx.Graphics.Shader/Decoders/OpCodeTable.cs
index 302f1fc4..8b9cb20d 100644
--- a/Ryujinx.Graphics.Shader/Decoders/OpCodeTable.cs
+++ b/Ryujinx.Graphics.Shader/Decoders/OpCodeTable.cs
@@ -34,6 +34,7 @@ namespace Ryujinx.Graphics.Shader.Decoders
 #region Instructions
             Set("1110111111011x", InstEmit.Ald,     OpCodeAttribute.Create);
             Set("1110111111110x", InstEmit.Ast,     OpCodeAttribute.Create);
+            Set("11101101xxxxxx", InstEmit.Atom,    OpCodeAtom.Create);
             Set("11101100xxxxxx", InstEmit.Atoms,   OpCodeAtom.Create);
             Set("1111000010101x", InstEmit.Bar,     OpCodeBarrier.Create);
             Set("0100110000000x", InstEmit.Bfe,     OpCodeAluCbuf.Create);
diff --git a/Ryujinx.Graphics.Shader/Decoders/ReductionType.cs b/Ryujinx.Graphics.Shader/Decoders/ReductionType.cs
index aaa2186e..4c8bd37e 100644
--- a/Ryujinx.Graphics.Shader/Decoders/ReductionType.cs
+++ b/Ryujinx.Graphics.Shader/Decoders/ReductionType.cs
@@ -2,11 +2,11 @@ namespace Ryujinx.Graphics.Shader.Decoders
 {
     enum ReductionType
     {
-        U32       = 0,
-        S32       = 1,
-        U64       = 2,
-        FP32FtzRn = 3,
-        U128      = 4,
-        S64       = 5
+        U32         = 0,
+        S32         = 1,
+        U64         = 2,
+        FP32FtzRn   = 3,
+        FP16x2FtzRn = 4,
+        S64         = 5
     }
 }
\ No newline at end of file