2 files changed, 197 insertions, 16 deletions

diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/load_store_local_shared.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/load_store_local_shared.cpp
new file mode 100644
index 000000000..68963c8ea
--- /dev/null
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/load_store_local_shared.cpp
@@ -0,0 +1,197 @@
+// 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 Size : u64 {
+    U8,
+    S8,
+    U16,
+    S16,
+    B32,
+    B64,
+    B128,
+};
+
+IR::U32 Offset(TranslatorVisitor& v, u64 insn) {
+    union {
+        u64 raw;
+        BitField<8, 8, IR::Reg> offset_reg;
+        BitField<20, 24, u64> absolute_offset;
+        BitField<20, 24, s64> relative_offset;
+    } const encoding{insn};
+
+    if (encoding.offset_reg == IR::Reg::RZ) {
+        return v.ir.Imm32(static_cast<u32>(encoding.absolute_offset));
+    } else {
+        const s32 relative{static_cast<s32>(encoding.relative_offset.Value())};
+        return v.ir.IAdd(v.X(encoding.offset_reg), v.ir.Imm32(relative));
+    }
+}
+
+std::pair<int, bool> GetSize(u64 insn) {
+    union {
+        u64 raw;
+        BitField<48, 3, Size> size;
+    } const encoding{insn};
+
+    const Size nnn = encoding.size;
+    switch (encoding.size) {
+    case Size::U8:
+        return {8, false};
+    case Size::S8:
+        return {8, true};
+    case Size::U16:
+        return {16, false};
+    case Size::S16:
+        return {16, true};
+    case Size::B32:
+        return {32, false};
+    case Size::B64:
+        return {64, false};
+    case Size::B128:
+        return {128, false};
+    default:
+        throw NotImplementedException("Invalid size {}", encoding.size.Value());
+    }
+}
+
+IR::Reg Reg(u64 insn) {
+    union {
+        u64 raw;
+        BitField<0, 8, IR::Reg> reg;
+    } const encoding{insn};
+
+    return encoding.reg;
+}
+
+IR::U32 ByteOffset(IR::IREmitter& ir, const IR::U32& offset) {
+    return ir.BitwiseAnd(ir.ShiftLeftLogical(offset, ir.Imm32(3)), ir.Imm32(24));
+}
+
+IR::U32 ShortOffset(IR::IREmitter& ir, const IR::U32& offset) {
+    return ir.BitwiseAnd(ir.ShiftLeftLogical(offset, ir.Imm32(3)), ir.Imm32(16));
+}
+} // Anonymous namespace
+
+void TranslatorVisitor::LDL(u64 insn) {
+    const IR::U32 offset{Offset(*this, insn)};
+    const IR::U32 word_offset{ir.ShiftRightArithmetic(offset, ir.Imm32(2))};
+
+    const IR::Reg dest{Reg(insn)};
+    const auto [bit_size, is_signed]{GetSize(insn)};
+    switch (bit_size) {
+    case 8: {
+        const IR::U32 bit{ByteOffset(ir, offset)};
+        X(dest, ir.BitFieldExtract(ir.LoadLocal(word_offset), bit, ir.Imm32(8), is_signed));
+        break;
+    }
+    case 16: {
+        const IR::U32 bit{ShortOffset(ir, offset)};
+        X(dest, ir.BitFieldExtract(ir.LoadLocal(word_offset), bit, ir.Imm32(16), is_signed));
+        break;
+    }
+    case 32:
+    case 64:
+    case 128:
+        if (!IR::IsAligned(dest, bit_size / 32)) {
+            throw NotImplementedException("Unaligned destination register {}", dest);
+        }
+        X(dest, ir.LoadLocal(word_offset));
+        for (int i = 1; i < bit_size / 32; ++i) {
+            X(dest + i, ir.LoadLocal(ir.IAdd(word_offset, ir.Imm32(i))));
+        }
+        break;
+    }
+}
+
+void TranslatorVisitor::LDS(u64 insn) {
+    const IR::U32 offset{Offset(*this, insn)};
+    const IR::Reg dest{Reg(insn)};
+    const auto [bit_size, is_signed]{GetSize(insn)};
+    const IR::Value value{ir.LoadShared(bit_size, is_signed, offset)};
+    switch (bit_size) {
+    case 8:
+    case 16:
+    case 32:
+        X(dest, IR::U32{value});
+        break;
+    case 64:
+    case 128:
+        if (!IR::IsAligned(dest, bit_size / 32)) {
+            throw NotImplementedException("Unaligned destination register {}", dest);
+        }
+        for (int element = 0; element < bit_size / 32; ++element) {
+            X(dest + element, IR::U32{ir.CompositeExtract(value, element)});
+        }
+        break;
+    }
+}
+
+void TranslatorVisitor::STL(u64 insn) {
+    const IR::U32 offset{Offset(*this, insn)};
+    const IR::U32 word_offset{ir.ShiftRightArithmetic(offset, ir.Imm32(2))};
+
+    const IR::Reg reg{Reg(insn)};
+    const IR::U32 src{X(reg)};
+    const int bit_size{GetSize(insn).first};
+    switch (bit_size) {
+    case 8: {
+        const IR::U32 bit{ByteOffset(ir, offset)};
+        const IR::U32 value{ir.BitFieldInsert(ir.LoadLocal(word_offset), src, bit, ir.Imm32(8))};
+        ir.WriteLocal(word_offset, value);
+        break;
+    }
+    case 16: {
+        const IR::U32 bit{ShortOffset(ir, offset)};
+        const IR::U32 value{ir.BitFieldInsert(ir.LoadLocal(word_offset), src, bit, ir.Imm32(16))};
+        ir.WriteLocal(word_offset, value);
+        break;
+    }
+    case 32:
+    case 64:
+    case 128:
+        if (!IR::IsAligned(reg, bit_size / 32)) {
+            throw NotImplementedException("Unaligned source register");
+        }
+        ir.WriteLocal(word_offset, src);
+        for (int i = 1; i < bit_size / 32; ++i) {
+            ir.WriteLocal(ir.IAdd(word_offset, ir.Imm32(i)), X(reg + i));
+        }
+        break;
+    }
+}
+
+void TranslatorVisitor::STS(u64 insn) {
+    const IR::U32 offset{Offset(*this, insn)};
+    const IR::Reg reg{Reg(insn)};
+    const int bit_size{GetSize(insn).first};
+    switch (bit_size) {
+    case 8:
+    case 16:
+    case 32:
+        ir.WriteShared(bit_size, offset, X(reg));
+        break;
+    case 64:
+        if (!IR::IsAligned(reg, 2)) {
+            throw NotImplementedException("Unaligned source register {}", reg);
+        }
+        ir.WriteShared(64, offset, ir.CompositeConstruct(X(reg), X(reg + 1)));
+        break;
+    case 128: {
+        if (!IR::IsAligned(reg, 2)) {
+            throw NotImplementedException("Unaligned source register {}", reg);
+        }
+        const IR::Value vector{ir.CompositeConstruct(X(reg), X(reg + 1), X(reg + 2), X(reg + 3))};
+        ir.WriteShared(128, offset, vector);
+        break;
+    }
+    }
+}
+
+} // 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 409216640..b62d8ee2a 100644
--- a/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/not_implemented.cpp
@@ -193,14 +193,6 @@ void TranslatorVisitor::LD(u64) {
     ThrowNotImplemented(Opcode::LD);
 }
 
-void TranslatorVisitor::LDL(u64) {
-    ThrowNotImplemented(Opcode::LDL);
-}
-
-void TranslatorVisitor::LDS(u64) {
-    ThrowNotImplemented(Opcode::LDS);
-}
-
 void TranslatorVisitor::LEPC(u64) {
     ThrowNotImplemented(Opcode::LEPC);
 }
@@ -309,18 +301,10 @@ void TranslatorVisitor::ST(u64) {
     ThrowNotImplemented(Opcode::ST);
 }
 
-void TranslatorVisitor::STL(u64) {
-    ThrowNotImplemented(Opcode::STL);
-}
-
 void TranslatorVisitor::STP(u64) {
     ThrowNotImplemented(Opcode::STP);
 }
 
-void TranslatorVisitor::STS(u64) {
-    ThrowNotImplemented(Opcode::STS);
-}
-
 void TranslatorVisitor::SUATOM_cas(u64) {
     ThrowNotImplemented(Opcode::SUATOM_cas);
 }