Merge pull request #6585 from ameerj/hades

Shader Decompiler Rewrite

1 files changed, 46 insertions, 0 deletions

diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/pixel_load.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/pixel_load.cpp
new file mode 100644
index 000000000..b4767afb5
--- /dev/null
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/pixel_load.cpp
@@ -0,0 +1,46 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/bit_field.h"
+#include "common/common_types.h"
+#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
+
+namespace Shader::Maxwell {
+namespace {
+enum class Mode : u64 {
+    Default,
+    CovMask,
+    Covered,
+    Offset,
+    CentroidOffset,
+    MyIndex,
+};
+} // Anonymous namespace
+
+void TranslatorVisitor::PIXLD(u64 insn) {
+    union {
+        u64 raw;
+        BitField<31, 3, Mode> mode;
+        BitField<0, 8, IR::Reg> dest_reg;
+        BitField<8, 8, IR::Reg> addr_reg;
+        BitField<20, 8, s64> addr_offset;
+        BitField<45, 3, IR::Pred> dest_pred;
+    } const pixld{insn};
+
+    if (pixld.dest_pred != IR::Pred::PT) {
+        throw NotImplementedException("Destination predicate");
+    }
+    if (pixld.addr_reg != IR::Reg::RZ || pixld.addr_offset != 0) {
+        throw NotImplementedException("Non-zero source register");
+    }
+    switch (pixld.mode) {
+    case Mode::MyIndex:
+        X(pixld.dest_reg, ir.SampleId());
+        break;
+    default:
+        throw NotImplementedException("Mode {}", pixld.mode.Value());
+    }
+}
+
+} // namespace Shader::Maxwell