diff --git a/src/dxbc/dxbc_chunk_isgn.cpp b/src/dxbc/dxbc_chunk_isgn.cpp
new file mode 100644
index 000000000..b4c088391
--- /dev/null
+++ b/src/dxbc/dxbc_chunk_isgn.cpp
@@ -0,0 +1,39 @@
+#include "dxbc_chunk_isgn.h"
+
+namespace dxvk {
+  
+  DxbcIsgn::DxbcIsgn(DxbcReader reader) {
+    uint32_t elementCount = reader.readu32();
+    reader.skip(sizeof(uint32_t));
+    
+    std::array<DxbcScalarType, 4> componentTypes = {
+      DxbcScalarType::Uint32, DxbcScalarType::Uint32,
+      DxbcScalarType::Sint32, DxbcScalarType::Float32,
+    };
+    
+    for (uint32_t i = 0; i < elementCount; i++) {
+      DxbcSgnEntry entry;
+      entry.semanticName    = reader.clone(reader.readu32()).readString();
+      entry.semanticIndex   = reader.readu32();
+      entry.systemValue     = static_cast<DxbcSystemValue>(reader.readu32());
+      entry.componentType   = componentTypes.at(reader.readu32());
+      entry.registerId      = reader.readu32();
+      entry.componentMask   = bit::extract(reader.readu32(), 0, 3);
+      
+      Logger::info(str::format(
+        entry.semanticName, ",",
+        entry.semanticIndex, ",",
+        entry.systemValue, ",",
+//         entry.componentType, ",",
+        entry.registerId));
+      
+      m_entries.push_back(entry);
+    }
+  }
+  
+  
+  DxbcIsgn::~DxbcIsgn() {
+    
+  }
+  
+}
\ No newline at end of file
diff --git a/src/dxbc/dxbc_chunk_isgn.h b/src/dxbc/dxbc_chunk_isgn.h
new file mode 100644
index 000000000..2e2084eda
--- /dev/null
+++ b/src/dxbc/dxbc_chunk_isgn.h
@@ -0,0 +1,45 @@
+#pragma once
+
+#include "dxbc_common.h"
+#include "dxbc_decoder.h"
+#include "dxbc_enums.h"
+#include "dxbc_reader.h"
+#include "dxbc_type.h"
+
+namespace dxvk {
+  
+  /**
+   * \brief Signature entry
+   * 
+   * Stores the semantic name of an input or
+   * output and the corresponding register.
+   */
+  struct DxbcSgnEntry {
+    std::string       semanticName;
+    uint32_t          semanticIndex;
+    uint32_t          registerId;
+    DxbcComponentMask componentMask;
+    DxbcScalarType    componentType;
+    DxbcSystemValue   systemValue;
+  };
+  
+  /**
+   * \brief Input/Output signature chunk
+   * 
+   * Stores information about the input and
+   * output registers used by the shader stage.
+   */
+  class DxbcIsgn : public RcObject {
+    
+  public:
+    
+    DxbcIsgn(DxbcReader reader);
+    ~DxbcIsgn();
+    
+  private:
+    
+    std::vector<DxbcSgnEntry> m_entries;
+    
+  };
+  
+}
\ No newline at end of file
diff --git a/src/dxbc/dxbc_compiler.cpp b/src/dxbc/dxbc_compiler.cpp
index 9b79b4102..4349d66ef 100644
--- a/src/dxbc/dxbc_compiler.cpp
+++ b/src/dxbc/dxbc_compiler.cpp
@@ -2,8 +2,13 @@
 
 namespace dxvk {
   
-  DxbcCompiler::DxbcCompiler(DxbcProgramVersion version)
-  : m_version(version) {
+  DxbcCompiler::DxbcCompiler(
+          DxbcProgramVersion  version,
+    const Rc<DxbcIsgn>&       inputSig,
+    const Rc<DxbcIsgn>&       outputSig)
+  : m_version   (version),
+    m_inputSig  (inputSig),
+    m_outputSig (outputSig) {
     m_entryPointId = m_module.allocateId();
     
     this->declareCapabilities();
@@ -15,6 +20,9 @@ namespace dxvk {
     m_module.functionBegin(m_typeVoid,
       m_entryPointId, m_typeFunction,
       spv::FunctionControlMaskNone);
+    
+    // TODO implement proper control flow
+    m_module.opLabel(m_module.allocateId());
   }
   
   
@@ -23,31 +31,33 @@ namespace dxvk {
   }
   
   
-  bool DxbcCompiler::processInstruction(const DxbcInstruction& ins) {
+  void DxbcCompiler::processInstruction(const DxbcInstruction& ins) {
     const DxbcOpcodeToken token = ins.token();
     
     switch (token.opcode()) {
       case DxbcOpcode::DclGlobalFlags:
-        return this->dclGlobalFlags(token.control());
-      
+        return this->dclGlobalFlags(ins);
+        
       case DxbcOpcode::DclInput:
         return this->dclInput(ins);
       
-      case DxbcOpcode::DclTemps:
-        return this->dclTemps(ins.arg(0));
+      case DxbcOpcode::DclOutputSiv:
+        return this->dclOutputSiv(ins);
       
-      case DxbcOpcode::DclThreadGroup: {
-        m_module.setLocalSize(
-          m_entryPointId,
-          ins.arg(0),
-          ins.arg(1),
-          ins.arg(2));
-      } return true;
+      case DxbcOpcode::DclTemps:
+        return this->dclTemps(ins);
+      
+      case DxbcOpcode::DclThreadGroup:
+        return this->dclThreadGroup(ins);
+      
+      case DxbcOpcode::Mov:
+        return this->opMov(ins);
+      
+      case DxbcOpcode::Ret:
+        return this->opRet(ins);
       
       default:
-        Logger::err(str::format("DXBC: unhandled instruction: ",
-          static_cast<uint32_t>(token.opcode())));
-        return false;
+        throw DxvkError(str::format("DXBC: Unhandled instruction: ", ins.token().opcode()));
     }
   }
   
@@ -91,7 +101,9 @@ namespace dxvk {
   }
   
   
-  bool DxbcCompiler::dclGlobalFlags(DxbcGlobalFlags flags) {
+  void DxbcCompiler::dclGlobalFlags(const DxbcInstruction& ins) {
+    const DxbcGlobalFlags flags(ins.token().control());
+    
     if (!flags.test(DxbcGlobalFlag::RefactoringAllowed))
       m_useRestrictedMath = true;
     
@@ -103,37 +115,167 @@ namespace dxvk {
     
     // Raw and structured buffers are supported regardless
     // of whether the corresponding flag is set or not.
-    return true;
   }
   
   
-  bool DxbcCompiler::dclInput(const DxbcInstruction& ins) {
-//     const DxbcOperand       operand = ins.operand(0);
-//     const DxbcOperandToken  token   = operand.token();
+  void DxbcCompiler::dclInput(const DxbcInstruction& ins) {
+    const DxbcOperand       operand = ins.operand(0);
+    const DxbcOperandToken  token   = operand.token();
     
-    Logger::err("DXBC: dcl_input: Not implemented yet");
-    return false;
   }
   
   
-  bool DxbcCompiler::dclTemps(uint32_t n) {
+  void DxbcCompiler::dclOutputSiv(const DxbcInstruction& ins) {
+    Logger::err("DXBC: dclOutputSiv: Not implemented yet");
+  }
+  
+  
+  void DxbcCompiler::dclTemps(const DxbcInstruction& ins) {
     // Temporaries are treated as untyped 4x32-bit vectors.
-    uint32_t u32Type = m_module.defIntType(32, 0);
-    uint32_t regType = m_module.defVectorType(u32Type, 4);
-    uint32_t ptrType = m_module.defPointerType(regType, spv::StorageClassPrivate);
+    const DxbcValueType   regType(DxbcScalarType::Uint32, 4);
+    const DxbcPointerType ptrType(regType, spv::StorageClassPrivate);
+    const uint32_t        ptrTypeId = this->getPointerTypeId(ptrType);
     
-    for (uint32_t i = 0; i < n; i++) {
-      DxbcRegTypeR reg;
-      reg.varType = regType;
-      reg.ptrType = ptrType;
-      reg.varId   = m_module.newVar(ptrType, spv::StorageClassPrivate);
+    for (uint32_t i = 0; i < ins.arg(0); i++) {
+      DxbcPointer reg;
+      reg.type    = ptrType;
+      reg.typeId  = ptrTypeId;
+      reg.valueId = m_module.newVar(ptrTypeId, spv::StorageClassPrivate);
       m_rRegs.push_back(reg);
       
-      m_module.setDebugName(reg.varId,
+      m_module.setDebugName(reg.valueId,
         str::format("r", i).c_str());
     }
+  }
+  
+  
+  void DxbcCompiler::dclThreadGroup(const DxbcInstruction& ins) {
+    m_module.setLocalSize(m_entryPointId,
+      ins.arg(0), ins.arg(1), ins.arg(2));
+  }
+  
+  
+  void DxbcCompiler::opMov(const DxbcInstruction& ins) {
+    const DxbcOperand dstOp = ins.operand(0);
+    const DxbcOperand srcOp = ins.operand(dstOp.length());
+    
+    DxbcValueType dstType(DxbcScalarType::Uint32, 1);
+    this->loadOperand(srcOp, dstType);
+    
+    Logger::err("DXBC: mov: Not implemented yet");
+  }
+  
+  
+  void DxbcCompiler::opRet(const DxbcInstruction& ins) {
+    // TODO implement proper control flow
+    m_module.opReturn();
+  }
+  
+  
+  uint32_t DxbcCompiler::getScalarTypeId(const DxbcScalarType& type) {
+    switch (type) {
+      case DxbcScalarType::Uint32 : return m_module.defIntType(32, 0);
+      case DxbcScalarType::Uint64 : return m_module.defIntType(64, 0);
+      case DxbcScalarType::Sint32 : return m_module.defIntType(32, 1);
+      case DxbcScalarType::Sint64 : return m_module.defIntType(64, 1);
+      case DxbcScalarType::Float32: return m_module.defFloatType(32);
+      case DxbcScalarType::Float64: return m_module.defFloatType(64);
+    }
+    
+    throw DxvkError("DXBC: Invalid scalar type");
+  }
+  
+  
+  uint32_t DxbcCompiler::getValueTypeId(const DxbcValueType& type) {
+    const uint32_t scalarTypeId = this->getScalarTypeId(type.componentType);
+    
+    return type.componentCount > 1
+      ? m_module.defVectorType(scalarTypeId, type.componentCount)
+      : scalarTypeId;
+  }
+  
+  
+  uint32_t DxbcCompiler::getPointerTypeId(const DxbcPointerType& type) {
+    return m_module.defPointerType(
+      this->getValueTypeId(type.valueType),
+      type.storageClass);
+  }
+  
+  
+  DxbcValue DxbcCompiler::loadPointer(const DxbcPointer& pointer) {
+    DxbcValue result;
+    result.type    = pointer.type.valueType;
+    result.typeId  = this->getValueTypeId(result.type);
+    result.valueId = m_module.opLoad(result.typeId, pointer.valueId);
+    return result;
+  }
+  
+  
+  DxbcValue DxbcCompiler::loadOperand(
+    const DxbcOperand&        operand,
+    const DxbcValueType&      type) {
+    const DxbcOperandToken token = operand.token();
+    
+    DxbcValue result;
+    
+    switch (token.type()) {
+      
+      case DxbcOperandType::Imm32: {
+        const uint32_t componentCount = token.numComponents();
+        
+        result.type   = DxbcValueType(DxbcScalarType::Uint32, componentCount);
+        result.typeId = this->getValueTypeId(result.type);
+        
+        if (componentCount == 1) {
+          result.valueId = m_module.constu32(operand.imm32(0));
+        } else {
+          std::array<uint32_t, 4> constIds;
+          
+          for (uint32_t i = 0; i < componentCount; i++)
+            constIds.at(i) = m_module.constu32(operand.imm32(i));
+          
+          result.valueId = m_module.constComposite(
+            result.typeId, componentCount, constIds.data());
+        }
+      } break;
+      
+      case DxbcOperandType::Temp: {
+        const DxbcOperandIndex index = operand.index(0);
+        result = this->loadPointer(m_rRegs.at(index.immPart()));
+      } break;
+      
+      case DxbcOperandType::Input: {
+        const DxbcOperandIndex index = operand.index(0);
+        result = this->loadPointer(m_vRegs.at(index.immPart()));
+      } break;
+      
+      case DxbcOperandType::Output: {
+        const DxbcOperandIndex index = operand.index(0);
+        result = this->loadPointer(m_oRegs.at(index.immPart()));
+      } break;
+      
+      default:
+        throw DxvkError(str::format(
+          "DxbcCompiler::loadOperandRegister: Unhandled operand type: ",
+          token.type()));
+    }
+    
+    return result;
+  }
+  
+  
+  void DxbcCompiler::storePointer(
+    const DxbcPointer&        pointer,
+    const DxbcValue&          value) {
+    m_module.opStore(pointer.valueId, value.valueId);
+  }
+  
+  
+  void DxbcCompiler::storeOperand(
+    const DxbcOperand&        operand,
+    const DxbcValueType&      srcType,
+          uint32_t            srcValue) {
     
-    return true;
   }
   
 }
\ No newline at end of file
diff --git a/src/dxbc/dxbc_compiler.h b/src/dxbc/dxbc_compiler.h
index b1d5708e4..514561678 100644
--- a/src/dxbc/dxbc_compiler.h
+++ b/src/dxbc/dxbc_compiler.h
@@ -1,44 +1,25 @@
 #pragma once
 
+#include "dxbc_chunk_isgn.h"
 #include "dxbc_chunk_shex.h"
 #include "dxbc_names.h"
+#include "dxbc_type.h"
 
 #include "../spirv/spirv_module.h"
 
 namespace dxvk {
   
-  struct DxbcRegTypeR {
-    uint32_t varType;
-    uint32_t ptrType;
-    uint32_t varId;
-  };
-  
-  
-  struct DxbcValueType {
-    spv::Op           componentType   = spv::OpTypeVoid;
-    uint32_t          componentWidth  = 0;
-    uint32_t          componentSigned = 0;
-    uint32_t          componentCount  = 0;
-  };
-  
-  
-  struct DxbcValue {
-    DxbcValueType type;
-    uint32_t      typeId;
-    uint32_t      valueId;
-  };
-  
-  
   /**
    * \brief DXBC to SPIR-V compiler
-   * 
-   * 
    */
   class DxbcCompiler {
     
   public:
     
-    DxbcCompiler(DxbcProgramVersion version);
+    DxbcCompiler(
+            DxbcProgramVersion  version,
+      const Rc<DxbcIsgn>&       inputSig,
+      const Rc<DxbcIsgn>&       outputSig);
     ~DxbcCompiler();
     
     DxbcCompiler             (DxbcCompiler&&) = delete;
@@ -50,7 +31,7 @@ namespace dxvk {
      * \param [in] ins The instruction
      * \returns \c true on success
      */
-    bool processInstruction(
+    void processInstruction(
       const DxbcInstruction& ins);
     
     /**
@@ -66,8 +47,13 @@ namespace dxvk {
     DxbcProgramVersion  m_version;
     SpirvModule         m_module;
     
+    Rc<DxbcIsgn>        m_inputSig;
+    Rc<DxbcIsgn>        m_outputSig;
+    
     std::vector<uint32_t>     m_interfaces;
-    std::vector<DxbcRegTypeR> m_rRegs;
+    std::vector<DxbcPointer>  m_rRegs;  // Temps
+    std::vector<DxbcPointer>  m_vRegs;  // Input registers
+    std::vector<DxbcPointer>  m_oRegs;  // Output registers
     
     uint32_t m_entryPointId = 0;
     
@@ -76,13 +62,37 @@ namespace dxvk {
     
     bool m_useRestrictedMath = false;
     
-    
     void declareCapabilities();
     void declareMemoryModel();
     
-    bool dclGlobalFlags(DxbcGlobalFlags flags);
-    bool dclInput(const DxbcInstruction& ins);
-    bool dclTemps(uint32_t n);
+    void dclGlobalFlags(const DxbcInstruction& ins);
+    void dclInput(const DxbcInstruction& ins);
+    void dclOutputSiv(const DxbcInstruction& ins);
+    void dclTemps(const DxbcInstruction& ins);
+    void dclThreadGroup(const DxbcInstruction& ins);
+    
+    void opMov(const DxbcInstruction& ins);
+    void opRet(const DxbcInstruction& ins);
+    
+    uint32_t getScalarTypeId(const DxbcScalarType& type);
+    uint32_t getValueTypeId(const DxbcValueType& type);
+    uint32_t getPointerTypeId(const DxbcPointerType& type);
+    
+    DxbcValue loadPointer(
+      const DxbcPointer&        pointer);
+    
+    DxbcValue loadOperand(
+      const DxbcOperand&        operand,
+      const DxbcValueType&      type);
+    
+    void storePointer(
+      const DxbcPointer&        pointer,
+      const DxbcValue&          value);
+    
+    void storeOperand(
+      const DxbcOperand&        operand,
+      const DxbcValueType&      srcType,
+            uint32_t            srcValue);
     
   };
   
diff --git a/src/dxbc/dxbc_decoder.cpp b/src/dxbc/dxbc_decoder.cpp
index 707415dc9..de99958a9 100644
--- a/src/dxbc/dxbc_decoder.cpp
+++ b/src/dxbc/dxbc_decoder.cpp
@@ -114,16 +114,10 @@ namespace dxvk {
     
     // Immediate operands
     uint32_t length = 0;
-    uint32_t componentCount = 0;
     
-    switch (token.numComponents()) {
-      case DxbcOperandNumComponents::Component0: componentCount = 0; break;
-      case DxbcOperandNumComponents::Component1: componentCount = 1; break;
-      case DxbcOperandNumComponents::Component4: componentCount = 4; break;
-    }
-    
-    if (token.type() == DxbcOperandType::Imm32) length += 1 * componentCount;
-    if (token.type() == DxbcOperandType::Imm64) length += 2 * componentCount;
+    if (token.type() == DxbcOperandType::Imm32
+     || token.type() == DxbcOperandType::Imm64)
+      length += token.numComponents();
     
     // Indices into the register file, may contain additional operands
     for (uint32_t i = 0; i < token.indexDimension(); i++) {
diff --git a/src/dxbc/dxbc_decoder.h b/src/dxbc/dxbc_decoder.h
index d9b37d4b5..21b1e019d 100644
--- a/src/dxbc/dxbc_decoder.h
+++ b/src/dxbc/dxbc_decoder.h
@@ -10,6 +10,21 @@ namespace dxvk {
   
   class DxbcOperand;
   
+  /**
+   * \brief Component swizzle
+   */
+  struct DxbcComponentSwizzle {
+    DxbcComponentName x;
+    DxbcComponentName y;
+    DxbcComponentName z;
+    DxbcComponentName w;
+  };
+  
+  /**
+   * \brief Component mask
+   */
+  using DxbcComponentMask = Flags<DxbcComponentName>;
+  
   /**
    * \brief DXBC instruction token
    * 
@@ -161,9 +176,9 @@ namespace dxvk {
      * has. Can be zero, one, or four.
      * \returns Number of components
      */
-    DxbcOperandNumComponents numComponents() const {
-      return static_cast<DxbcOperandNumComponents>(
-        bit::extract(m_token, 0, 1));
+    uint32_t numComponents() const {
+      std::array<uint32_t, 3> count = { 0, 1, 4 };
+      return count.at(bit::extract(m_token, 0, 1));
     }
     
     /**
@@ -174,11 +189,48 @@ namespace dxvk {
      * a given set of components is used.
      * \returns Component selection mode
      */
-    DxbcOperandComponentSelectionMode selectionMode() const {
-      return static_cast<DxbcOperandComponentSelectionMode>(
+    DxbcComponentSelectionMode selectionMode() const {
+      return static_cast<DxbcComponentSelectionMode>(
         bit::extract(m_token, 2, 3));
     }
     
+    /**
+     * \brief Component mask
+     * 
+     * Used when the component selection mode is
+     * \c DxbcComponentSelectionMode::Mask.
+     * \returns The component mask
+     */
+    DxbcComponentMask componentMask() const {
+      return DxbcComponentMask(bit::extract(m_token, 4, 7));
+    }
+    
+    /**
+     * \brief Component swizzle
+     * 
+     * Used when the component selection mode is
+     * \c DxbcComponentSelectionMode::Swizzle.
+     * \returns The component swizzle
+     */
+    DxbcComponentSwizzle componentSwizzle() const {
+      return DxbcComponentSwizzle {
+        static_cast<DxbcComponentName>(bit::extract(m_token,  4,  5)),
+        static_cast<DxbcComponentName>(bit::extract(m_token,  6,  7)),
+        static_cast<DxbcComponentName>(bit::extract(m_token,  8,  9)),
+        static_cast<DxbcComponentName>(bit::extract(m_token, 10, 11)) };
+    }
+    
+    /**
+     * \brief Component selection
+     * 
+     * Used when the component selection mode is
+     * \c DxbcComponentSelectionMode::Select1.
+     */
+    DxbcComponentName componentSelection() const {
+      return static_cast<DxbcComponentName>(
+        bit::extract(m_token, 4, 5));
+    }
+    
     /**
      * \brief Operand type
      * 
@@ -404,6 +456,28 @@ namespace dxvk {
     std::optional<DxbcOperandTokenExt> queryOperandExt(
             DxbcOperandExt ext) const;
     
+    /**
+     * \brief Reads 32-bit immediate integer
+     * 
+     * \param [in] idx Component index
+     * \returns The immediate operand
+     */
+    uint32_t imm32(uint32_t idx) const {
+      return m_data.getWord(idx);
+    }
+    
+    /**
+     * \brief Reads 64-bit immediate integer
+     * 
+     * \param [in] idx Component index
+     * \returns The immediate operand
+     */
+    uint64_t imm64(uint32_t idx) const {
+      uint64_t hi = m_data.getWord(2 * idx + 0);
+      uint64_t lo = m_data.getWord(2 * idx + 1);
+      return (hi << 32) | (lo);
+    }
+    
   private:
     
     DxbcCodeReader m_info;
diff --git a/src/dxbc/dxbc_enums.h b/src/dxbc/dxbc_enums.h
index 750121252..7db82b37a 100644
--- a/src/dxbc/dxbc_enums.h
+++ b/src/dxbc/dxbc_enums.h
@@ -164,9 +164,9 @@ namespace dxvk {
     DclHsForkPhaseInstanceCount          = 153,
     DclHsJoinPhaseInstanceCount          = 154,
     DclThreadGroup                       = 155,
-    DclUnorderedAccessViewTyped          = 156,
-    DclUnorderedAccessViewRaw            = 157,
-    DclUnorderedAccessViewStructured     = 158,
+    DclUavTyped                          = 156,
+    DclUavRaw                            = 157,
+    DclUavStructured                     = 158,
     DclThreadGroupSharedMemoryRaw        = 159,
     DclThreadGroupSharedMemoryStructured = 160,
     DclResourceRaw                       = 161,
@@ -286,7 +286,7 @@ namespace dxvk {
    * Used by operands to determine whether the
    * operand has one, four or zero components.
    */
-  enum class DxbcOperandNumComponents : uint32_t {
+  enum class DxbcComponentCount : uint32_t {
     Component0 = 0,
     Component1 = 1,
     Component4 = 2,
@@ -300,7 +300,7 @@ namespace dxvk {
    * component selection mode deterines which
    * components are used for the operation.
    */
-  enum class DxbcOperandComponentSelectionMode : uint32_t {
+  enum class DxbcComponentSelectionMode : uint32_t {
     Mask    = 0,
     Swizzle = 1,
     Select1 = 2,
@@ -311,7 +311,7 @@ namespace dxvk {
    * \brief Component name
    * Used for component selection.
    */
-  enum class DxbcOperandComponentName : uint32_t {
+  enum class DxbcComponentName : uint32_t {
     X = 0, Y = 1, Z = 2, W = 3,
   };
   
@@ -398,6 +398,32 @@ namespace dxvk {
   };
   
   
+  enum class DxbcSystemValue : uint32_t {
+    None                        = 0,
+    Position                    = 1,
+    ClipDistance                = 2,
+    CullDistance                = 3,
+    RenderTargetId              = 4,
+    ViewportId                  = 5,
+    VertexId                    = 6,
+    PrimitiveId                 = 7,
+    InstanceId                  = 8,
+    IsFrontFace                 = 9,
+    SampleIndex                 = 10,
+    FinalQuadEdgeTessFactor     = 11,
+    FinalQuadInsideTessFactor   = 12,
+    FinalTriEdgeTessFactor      = 13,
+    FinalTriInsideTessFactor    = 14,
+    FinalLineDetailTessFactor   = 15,
+    FinalLineDensityTessFactor  = 16,
+    Target                      = 64,
+    Depth                       = 65,
+    Coverage                    = 66,
+    DepthGe                     = 67,
+    DepthLe                     = 68
+  };
+  
+  
   enum class DxbcGlobalFlag : uint32_t {
     RefactoringAllowed    = 0,
     DoublePrecision       = 1,
diff --git a/src/dxbc/dxbc_module.cpp b/src/dxbc/dxbc_module.cpp
index 0461575be..256cebc18 100644
--- a/src/dxbc/dxbc_module.cpp
+++ b/src/dxbc/dxbc_module.cpp
@@ -14,12 +14,23 @@ namespace dxvk {
       // The chunk size follows right after the four-character
       // code. This does not include the eight bytes that are
       // consumed by the FourCC and chunk length entry.
-      auto chunkLength = chunkReader.readu32() + 8;
-           chunkReader = chunkReader.resize(chunkLength);
+      auto chunkLength = chunkReader.readu32();
+      
+      chunkReader = chunkReader.clone(8);
+      chunkReader = chunkReader.resize(chunkLength);
       
       if ((tag == "SHDR") || (tag == "SHEX"))
         m_shexChunk = new DxbcShex(chunkReader);
       
+      if ((tag == "ISGN"))
+        m_isgnChunk = new DxbcIsgn(chunkReader);
+      
+      if ((tag == "OSGN"))
+        m_osgnChunk = new DxbcIsgn(chunkReader);
+      
+//       if ((tag == "OSG5"))
+//         m_osgnChunk = new DxbcIsgn(chunkReader);
+      
     }
   }
   
@@ -33,7 +44,7 @@ namespace dxvk {
     if (m_shexChunk == nullptr)
       throw DxvkError("DxbcModule::compile: No SHDR/SHEX chunk");
     
-    DxbcCompiler compiler(m_shexChunk->version());
+    DxbcCompiler compiler(m_shexChunk->version(), m_isgnChunk, m_osgnChunk);
     
     for (auto ins : *m_shexChunk)
       compiler.processInstruction(ins);
diff --git a/src/dxbc/dxbc_module.h b/src/dxbc/dxbc_module.h
index bb0eb3d29..4c23fbf59 100644
--- a/src/dxbc/dxbc_module.h
+++ b/src/dxbc/dxbc_module.h
@@ -2,6 +2,7 @@
 
 #include "../dxvk/dxvk_shader.h"
 
+#include "dxbc_chunk_isgn.h"
 #include "dxbc_chunk_shex.h"
 #include "dxbc_header.h"
 #include "dxbc_reader.h"
@@ -36,6 +37,8 @@ namespace dxvk {
     
     DxbcHeader m_header;
     
+    Rc<DxbcIsgn> m_isgnChunk;
+    Rc<DxbcIsgn> m_osgnChunk;
     Rc<DxbcShex> m_shexChunk;
     
   };
diff --git a/src/dxbc/dxbc_names.cpp b/src/dxbc/dxbc_names.cpp
index 023b29606..45ece7770 100644
--- a/src/dxbc/dxbc_names.cpp
+++ b/src/dxbc/dxbc_names.cpp
@@ -160,9 +160,9 @@ std::ostream& operator << (std::ostream& os, DxbcOpcode e) {
     ENUM_NAME(DxbcOpcode::DclHsForkPhaseInstanceCount);
     ENUM_NAME(DxbcOpcode::DclHsJoinPhaseInstanceCount);
     ENUM_NAME(DxbcOpcode::DclThreadGroup);
-    ENUM_NAME(DxbcOpcode::DclUnorderedAccessViewTyped);
-    ENUM_NAME(DxbcOpcode::DclUnorderedAccessViewRaw);
-    ENUM_NAME(DxbcOpcode::DclUnorderedAccessViewStructured);
+    ENUM_NAME(DxbcOpcode::DclUavTyped);
+    ENUM_NAME(DxbcOpcode::DclUavRaw);
+    ENUM_NAME(DxbcOpcode::DclUavStructured);
     ENUM_NAME(DxbcOpcode::DclThreadGroupSharedMemoryRaw);
     ENUM_NAME(DxbcOpcode::DclThreadGroupSharedMemoryStructured);
     ENUM_NAME(DxbcOpcode::DclResourceRaw);
@@ -275,32 +275,32 @@ std::ostream& operator << (std::ostream& os, DxbcOperandType e) {
 }
 
 
-std::ostream& operator << (std::ostream& os, DxbcOperandNumComponents e) {
+std::ostream& operator << (std::ostream& os, DxbcComponentCount e) {
   switch (e) {
-    ENUM_NAME(DxbcOperandNumComponents::Component0);
-    ENUM_NAME(DxbcOperandNumComponents::Component1);
-    ENUM_NAME(DxbcOperandNumComponents::Component4);
+    ENUM_NAME(DxbcComponentCount::Component0);
+    ENUM_NAME(DxbcComponentCount::Component1);
+    ENUM_NAME(DxbcComponentCount::Component4);
     ENUM_DEFAULT(e);
   }
 }
 
 
-std::ostream& operator << (std::ostream& os, DxbcOperandComponentSelectionMode e) {
+std::ostream& operator << (std::ostream& os, DxbcComponentSelectionMode e) {
   switch (e) {
-    ENUM_NAME(DxbcOperandComponentSelectionMode::Mask);
-    ENUM_NAME(DxbcOperandComponentSelectionMode::Swizzle);
-    ENUM_NAME(DxbcOperandComponentSelectionMode::Select1);
+    ENUM_NAME(DxbcComponentSelectionMode::Mask);
+    ENUM_NAME(DxbcComponentSelectionMode::Swizzle);
+    ENUM_NAME(DxbcComponentSelectionMode::Select1);
     ENUM_DEFAULT(e);
   }
 }
 
 
-std::ostream& operator << (std::ostream& os, DxbcOperandComponentName e) {
+std::ostream& operator << (std::ostream& os, DxbcComponentName e) {
   switch (e) {
-    ENUM_NAME(DxbcOperandComponentName::X);
-    ENUM_NAME(DxbcOperandComponentName::Y);
-    ENUM_NAME(DxbcOperandComponentName::Z);
-    ENUM_NAME(DxbcOperandComponentName::W);
+    ENUM_NAME(DxbcComponentName::X);
+    ENUM_NAME(DxbcComponentName::Y);
+    ENUM_NAME(DxbcComponentName::Z);
+    ENUM_NAME(DxbcComponentName::W);
     ENUM_DEFAULT(e);
   }
 }
@@ -372,3 +372,32 @@ std::ostream& operator << (std::ostream& os, DxbcInstructionReturnType e) {
     ENUM_DEFAULT(e);
   }
 }
+
+
+std::ostream& operator << (std::ostream& os, DxbcSystemValue e) {
+  switch (e) {
+    ENUM_NAME(DxbcSystemValue::None);
+    ENUM_NAME(DxbcSystemValue::Position);
+    ENUM_NAME(DxbcSystemValue::ClipDistance);
+    ENUM_NAME(DxbcSystemValue::CullDistance);
+    ENUM_NAME(DxbcSystemValue::RenderTargetId);
+    ENUM_NAME(DxbcSystemValue::ViewportId);
+    ENUM_NAME(DxbcSystemValue::VertexId);
+    ENUM_NAME(DxbcSystemValue::PrimitiveId);
+    ENUM_NAME(DxbcSystemValue::InstanceId);
+    ENUM_NAME(DxbcSystemValue::IsFrontFace);
+    ENUM_NAME(DxbcSystemValue::SampleIndex);
+    ENUM_NAME(DxbcSystemValue::FinalQuadEdgeTessFactor);
+    ENUM_NAME(DxbcSystemValue::FinalQuadInsideTessFactor);
+    ENUM_NAME(DxbcSystemValue::FinalTriEdgeTessFactor);
+    ENUM_NAME(DxbcSystemValue::FinalTriInsideTessFactor);
+    ENUM_NAME(DxbcSystemValue::FinalLineDetailTessFactor);
+    ENUM_NAME(DxbcSystemValue::FinalLineDensityTessFactor);
+    ENUM_NAME(DxbcSystemValue::Target);
+    ENUM_NAME(DxbcSystemValue::Depth);
+    ENUM_NAME(DxbcSystemValue::Coverage);
+    ENUM_NAME(DxbcSystemValue::DepthGe);
+    ENUM_NAME(DxbcSystemValue::DepthLe);
+    ENUM_DEFAULT(e);
+  }
+}
diff --git a/src/dxbc/dxbc_names.h b/src/dxbc/dxbc_names.h
index 2584d0140..cc3bb8000 100644
--- a/src/dxbc/dxbc_names.h
+++ b/src/dxbc/dxbc_names.h
@@ -7,11 +7,12 @@
 std::ostream& operator << (std::ostream& os, dxvk::DxbcOpcode e);
 std::ostream& operator << (std::ostream& os, dxvk::DxbcExtOpcode e);
 std::ostream& operator << (std::ostream& os, dxvk::DxbcOperandType e);
-std::ostream& operator << (std::ostream& os, dxvk::DxbcOperandNumComponents e);
-std::ostream& operator << (std::ostream& os, dxvk::DxbcOperandComponentSelectionMode e);
-std::ostream& operator << (std::ostream& os, dxvk::DxbcOperandComponentName e);
+std::ostream& operator << (std::ostream& os, dxvk::DxbcComponentCount e);
+std::ostream& operator << (std::ostream& os, dxvk::DxbcComponentSelectionMode e);
+std::ostream& operator << (std::ostream& os, dxvk::DxbcComponentName e);
 std::ostream& operator << (std::ostream& os, dxvk::DxbcOperandIndexRepresentation e);
 std::ostream& operator << (std::ostream& os, dxvk::DxbcResourceDim e);
 std::ostream& operator << (std::ostream& os, dxvk::DxbcResourceReturnType e);
 std::ostream& operator << (std::ostream& os, dxvk::DxbcRegisterComponentType e);
 std::ostream& operator << (std::ostream& os, dxvk::DxbcInstructionReturnType e);
+std::ostream& operator << (std::ostream& os, dxvk::DxbcSystemValue e);
diff --git a/src/dxbc/dxbc_type.h b/src/dxbc/dxbc_type.h
new file mode 100644
index 000000000..c799c2244
--- /dev/null
+++ b/src/dxbc/dxbc_type.h
@@ -0,0 +1,104 @@
+#pragma once
+
+#include "dxbc_include.h"
+
+namespace dxvk {
+  
+  /**
+   * \brief Scalar value type
+   * 
+   * Enumerates possible register component
+   * types. Scalar types are represented as
+   * a one-component vector type.
+   */
+  enum class DxbcScalarType {
+    Uint32    = 0,
+    Uint64    = 1,
+    Sint32    = 2,
+    Sint64    = 3,
+    Float32   = 4,
+    Float64   = 5,
+  };
+  
+  
+  /**
+   * \brief Vector value type
+   * 
+   * Vector type definition that stores the scalar
+   * component type and the number of components.
+   */
+  struct DxbcValueType {
+    DxbcValueType() { }
+    DxbcValueType(DxbcScalarType s, uint32_t c)
+    : componentType(s), componentCount(c) { }
+    
+    DxbcScalarType componentType  = DxbcScalarType::Uint32;
+    uint32_t       componentCount = 0;
+  };
+  
+  
+  /**
+   * \brief Value
+   * 
+   * Stores the type and SPIR-V ID of an expression
+   * result that can be used as an operand value.
+   */
+  struct DxbcValue {
+    DxbcValue() { }
+    DxbcValue(
+      DxbcValueType p_type,
+      uint32_t      p_typeId,
+      uint32_t      p_valueId)
+    : type    (p_type),
+      typeId  (p_typeId),
+      valueId (p_valueId) { }
+    
+    DxbcValueType type;
+    uint32_t      typeId  = 0;
+    uint32_t      valueId = 0;
+  };
+  
+  
+  /**
+   * \brief Pointer type
+   * 
+   * Stores the type of data that the pointer will
+   * point to, as well as the storage class of the
+   * SPIR-V object.
+   */
+  struct DxbcPointerType {
+    DxbcPointerType() { }
+    DxbcPointerType(
+      DxbcValueType     p_valueType,
+      spv::StorageClass p_storageClass)
+    : valueType   (p_valueType),
+      storageClass(p_storageClass) { }
+    
+    DxbcValueType     valueType;
+    spv::StorageClass storageClass = spv::StorageClassGeneric;
+  };
+  
+  
+  /**
+   * \brief Pointer
+   * 
+   * Stores the SPIR-V ID of a pointer value and
+   * the type of the pointer, including its storage
+   * class. Can be used as a memory operand.
+   */
+  struct DxbcPointer {
+    DxbcPointer() { }
+    DxbcPointer(
+      DxbcPointerType   p_type,
+      uint32_t          p_typeId,
+      uint32_t          p_valueId)
+    : type    (p_type),
+      typeId  (p_typeId),
+      valueId (p_valueId) { }
+    
+    DxbcPointerType type;
+    uint32_t        typeId  = 0;
+    uint32_t        valueId = 0;
+  };
+  
+}
\ No newline at end of file
diff --git a/src/dxbc/meson.build b/src/dxbc/meson.build
index fe91536df..633685c95 100644
--- a/src/dxbc/meson.build
+++ b/src/dxbc/meson.build
@@ -1,4 +1,5 @@
 dxbc_src = files([
+  'dxbc_chunk_isgn.cpp',
   'dxbc_chunk_shex.cpp',
   'dxbc_common.cpp',
   'dxbc_compiler.cpp',