From e2ac8fb36d0f5540d87148226c4e93de1b6de5d3 Mon Sep 17 00:00:00 2001
From: FernandoS27 <fsahmkow27@gmail.com>
Date: Sat, 8 Sep 2018 22:44:20 -0400
Subject: Implemented CSETP

---
 src/video_core/engines/shader_bytecode.h           | 11 +++++
 .../renderer_opengl/gl_shader_decompiler.cpp       | 52 ++++++++++++++++------
 2 files changed, 49 insertions(+), 14 deletions(-)

(limited to 'src')

diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h
index 12229cf4c..3c5e9ea96 100644
--- a/src/video_core/engines/shader_bytecode.h
+++ b/src/video_core/engines/shader_bytecode.h
@@ -580,6 +580,15 @@ union Instruction {
         BitField<45, 2, PredOperation> op;
     } pset;
 
+    union {
+        BitField<0, 3, u64> pred0;
+        BitField<3, 3, u64> pred3;
+        BitField<8, 5, ControlCode> cc; // flag in cc
+        BitField<39, 3, u64> pred39;
+        BitField<42, 1, u64> neg_pred39;
+        BitField<45, 4, PredOperation> op; // op with pred39
+    } csetp;
+
     union {
         BitField<39, 3, u64> pred39;
         BitField<42, 1, u64> neg_pred;
@@ -895,6 +904,7 @@ public:
         ISET_IMM,
         PSETP,
         PSET,
+        CSETP,
         XMAD_IMM,
         XMAD_CR,
         XMAD_RC,
@@ -1131,6 +1141,7 @@ private:
             INST("0011011-0101----", Id::ISET_IMM, Type::IntegerSet, "ISET_IMM"),
             INST("0101000010001---", Id::PSET, Type::PredicateSetRegister, "PSET"),
             INST("0101000010010---", Id::PSETP, Type::PredicateSetPredicate, "PSETP"),
+            INST("010100001010----", Id::PSETP, Type::PredicateSetPredicate, "CSETP"),
             INST("0011011-00------", Id::XMAD_IMM, Type::Xmad, "XMAD_IMM"),
             INST("0100111---------", Id::XMAD_CR, Type::Xmad, "XMAD_CR"),
             INST("010100010-------", Id::XMAD_RC, Type::Xmad, "XMAD_RC"),
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index 34f9e57d4..158eb2190 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -2267,13 +2267,15 @@ private:
             break;
         }
         case OpCode::Type::PredicateSetPredicate: {
-            const std::string op_a =
-                GetPredicateCondition(instr.psetp.pred12, instr.psetp.neg_pred12 != 0);
-            const std::string op_b =
-                GetPredicateCondition(instr.psetp.pred29, instr.psetp.neg_pred29 != 0);
+            switch (opcode->GetId()) {
+            case OpCode::Id::PSETP: {
+                const std::string op_a =
+                    GetPredicateCondition(instr.psetp.pred12, instr.psetp.neg_pred12 != 0);
+                const std::string op_b =
+                    GetPredicateCondition(instr.psetp.pred29, instr.psetp.neg_pred29 != 0);
 
-            // We can't use the constant predicate as destination.
-            ASSERT(instr.psetp.pred3 != static_cast<u64>(Pred::UnusedIndex));
+                // We can't use the constant predicate as destination.
+                ASSERT(instr.psetp.pred3 != static_cast<u64>(Pred::UnusedIndex));
 
             const std::string second_pred =
                 GetPredicateCondition(instr.psetp.pred39, instr.psetp.neg_pred39 != 0);
@@ -2283,15 +2285,37 @@ private:
             const std::string predicate =
                 '(' + op_a + ") " + GetPredicateCombiner(instr.psetp.cond) + " (" + op_b + ')';
 
-            // Set the primary predicate to the result of Predicate OP SecondPredicate
-            SetPredicate(instr.psetp.pred3,
-                         '(' + predicate + ") " + combiner + " (" + second_pred + ')');
+                // Set the primary predicate to the result of Predicate OP SecondPredicate
+                SetPredicate(instr.psetp.pred3,
+                             '(' + predicate + ") " + combiner + " (" + second_pred + ')');
 
-            if (instr.psetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) {
-                // Set the secondary predicate to the result of !Predicate OP SecondPredicate,
-                // if enabled
-                SetPredicate(instr.psetp.pred0,
-                             "!(" + predicate + ") " + combiner + " (" + second_pred + ')');
+                if (instr.psetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) {
+                    // Set the secondary predicate to the result of !Predicate OP SecondPredicate,
+                    // if enabled
+                    SetPredicate(instr.psetp.pred0,
+                                 "!(" + predicate + ") " + combiner + " (" + second_pred + ')');
+                }
+                break;
+            }
+            case OpCode::Id::CSETP: {
+                std::string pred =
+                    GetPredicateCondition(instr.csetp.pred39, instr.csetp.neg_pred39 != 0);
+                std::string combiner = GetPredicateCombiner(instr.csetp.op);
+                std::string controlCode = regs.GetControlCode(instr.csetp.cc);
+                if (instr.csetp.pred3 != static_cast<u64>(Pred::UnusedIndex)) {
+                    SetPredicate(instr.csetp.pred3,
+                                 '(' + controlCode + ") " + combiner + " (" + pred + ')');
+                }
+                if (instr.csetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) {
+                    SetPredicate(instr.csetp.pred0,
+                                 "!(" + controlCode + ") " + combiner + " (" + pred + ')');
+                }
+                break;
+            }
+            default: {
+                LOG_CRITICAL(HW_GPU, "Unhandled predicate instruction: {}", opcode->GetName());
+                UNREACHABLE();
+            }
             }
             break;
         }
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