Merge pull request #6585 from ameerj/hades

Shader Decompiler Rewrite

1 files changed, 52 insertions, 0 deletions

diff --git a/src/shader_recompiler/frontend/maxwell/translate/translate.cpp b/src/shader_recompiler/frontend/maxwell/translate/translate.cpp
new file mode 100644
index 000000000..8e3c4c5d5
--- /dev/null
+++ b/src/shader_recompiler/frontend/maxwell/translate/translate.cpp
@@ -0,0 +1,52 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "shader_recompiler/environment.h"
+#include "shader_recompiler/frontend/ir/basic_block.h"
+#include "shader_recompiler/frontend/maxwell/decode.h"
+#include "shader_recompiler/frontend/maxwell/location.h"
+#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
+#include "shader_recompiler/frontend/maxwell/translate/translate.h"
+
+namespace Shader::Maxwell {
+
+template <auto method>
+static void Invoke(TranslatorVisitor& visitor, Location pc, u64 insn) {
+    using MethodType = decltype(method);
+    if constexpr (std::is_invocable_r_v<void, MethodType, TranslatorVisitor&, Location, u64>) {
+        (visitor.*method)(pc, insn);
+    } else if constexpr (std::is_invocable_r_v<void, MethodType, TranslatorVisitor&, u64>) {
+        (visitor.*method)(insn);
+    } else {
+        (visitor.*method)();
+    }
+}
+
+void Translate(Environment& env, IR::Block* block, u32 location_begin, u32 location_end) {
+    if (location_begin == location_end) {
+        return;
+    }
+    TranslatorVisitor visitor{env, *block};
+    for (Location pc = location_begin; pc != location_end; ++pc) {
+        const u64 insn{env.ReadInstruction(pc.Offset())};
+        try {
+            const Opcode opcode{Decode(insn)};
+            switch (opcode) {
+#define INST(name, cute, mask)                                                                     \
+    case Opcode::name:                                                                             \
+        Invoke<&TranslatorVisitor::name>(visitor, pc, insn);                                       \
+        break;
+#include "shader_recompiler/frontend/maxwell/maxwell.inc"
+#undef OPCODE
+            default:
+                throw LogicError("Invalid opcode {}", opcode);
+            }
+        } catch (Exception& exception) {
+            exception.Prepend(fmt::format("Translate {}: ", Decode(insn)));
+            throw;
+        }
+    }
+}
+
+} // namespace Shader::Maxwell