shader: Implement AL2P

3 files changed, 36 insertions, 4 deletions

diff --git a/src/shader_recompiler/CMakeLists.txt b/src/shader_recompiler/CMakeLists.txt
index 700b17113..22639fe13 100644
--- a/src/shader_recompiler/CMakeLists.txt
+++ b/src/shader_recompiler/CMakeLists.txt
@@ -65,6 +65,7 @@ add_library(shader_recompiler STATIC
     frontend/maxwell/program.h
     frontend/maxwell/structured_control_flow.cpp
     frontend/maxwell/structured_control_flow.h
+    frontend/maxwell/translate/impl/attribute_memory_to_physical.cpp
     frontend/maxwell/translate/impl/barrier_operations.cpp
     frontend/maxwell/translate/impl/bitfield_extract.cpp
     frontend/maxwell/translate/impl/bitfield_insert.cpp
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/attribute_memory_to_physical.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/attribute_memory_to_physical.cpp
new file mode 100644
index 000000000..fb3f00d3f
--- /dev/null
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/attribute_memory_to_physical.cpp
@@ -0,0 +1,35 @@
+// 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/opcodes.h"
+#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
+
+namespace Shader::Maxwell {
+
+enum class BitSize : u64 {
+    B32,
+    B64,
+    B96,
+    B128,
+};
+
+void TranslatorVisitor::AL2P(u64 inst) {
+    union {
+        u64 raw;
+        BitField<0, 8, IR::Reg> result_register;
+        BitField<8, 8, IR::Reg> indexing_register;
+        BitField<20, 11, s64> offset;
+        BitField<47, 2, BitSize> bitsize;
+    } al2p{inst};
+    if (al2p.bitsize != BitSize::B32) {
+        throw NotImplementedException("BitSize {}", al2p.bitsize.Value());
+    }
+    const IR::U32 converted_offset{ir.Imm32(static_cast<u32>(al2p.offset.Value()))};
+    const IR::U32 result{ir.IAdd(X(al2p.indexing_register), converted_offset)};
+    X(al2p.result_register, result);
+}
+
+} // namespace Shader::Maxwell
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp
index acabb0118..ba0cfa673 100644
--- a/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp
@@ -13,10 +13,6 @@ namespace Shader::Maxwell {
     throw NotImplementedException("Instruction {} is not implemented", opcode);
 }
 
-void TranslatorVisitor::AL2P(u64) {
-    ThrowNotImplemented(Opcode::AL2P);
-}
-
 void TranslatorVisitor::ATOM_cas(u64) {
     ThrowNotImplemented(Opcode::ATOM_cas);
 }