diff --git a/PKGBUILD b/PKGBUILD
index b64c4c6..322b919 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -7,7 +7,7 @@ pkgdesc="Basic cross platform IO library"
 arch=('i686' 'x86_64')
 source=("${pkgname%-*}::git+https://github.com/Antidote/Athena.git")
 options=(staticlibs)
-license="GPL3"
+license="MIT"
 makedepends=('git qt5-base sed')
 md5sums=('SKIP')
 sha256sums=('SKIP')
diff --git a/atdna/PKGBUILD b/atdna/PKGBUILD
new file mode 100644
index 0000000..a3b422e
--- /dev/null
+++ b/atdna/PKGBUILD
@@ -0,0 +1,30 @@
+# PKGBUILD for atdna
+_pkgname=atdna
+pkgname=$_pkgname-git
+pkgver=v1.0.0
+pkgrel=1
+pkgdesc="Companion DNA utility for libAthena"
+arch=('i686' 'x86_64')
+source=("${pkgname%-*}::git+https://github.com/Antidote/Athena.git")
+options=(staticlibs)
+license="MIT"
+makedepends=('git qt5-base sed clang libathena-git')
+depends=('libathena-git')
+md5sums=('SKIP')
+sha256sums=('SKIP')
+
+pkgver() {
+    cd "$srcdir/$_pkgname"
+    git describe --tags | sed 's|-|.|g'
+}
+
+build() {
+    cd "$srcdir/$_pkgname"
+    qmake && make
+}
+
+package() {
+    cd "$srcdir/$_pkgname"
+	qmake PREFIX="$pkgdir/usr" && make install
+}
+
diff --git a/atdna/atdna.pro b/atdna/atdna.pro
index ca09897..3d113d3 100644
--- a/atdna/atdna.pro
+++ b/atdna/atdna.pro
@@ -14,8 +14,8 @@ CONFIG(debug, debug|release) {
     LIBS += -L/run/media/jacko/Extra/llvm-build/usr/lib
     LIBS += -g
 } else {
-    INCLUDEPATH += /run/media/jacko/Extra/llvm-build/usrmin/include
-    LIBS += -L/run/media/jacko/Extra/llvm-build/usrmin/lib
+    #INCLUDEPATH += /run/media/jacko/Extra/llvm-build/usrmin/include
+    #LIBS += -L/run/media/jacko/Extra/llvm-build/usrmin/lib
     LIBS += -flto
 }
 
@@ -42,14 +42,30 @@ LIBS += -lclangFrontendTool -lclangFrontend -lclangTooling -lclangDriver \
         -lLLVMARMCodeGen -lLLVMARMAsmParser -lLLVMARMDesc -lLLVMARMInfo -lLLVMARMAsmPrinter \
         -lLLVMAArch64Disassembler -lLLVMAArch64CodeGen -lLLVMAArch64AsmParser \
         -lLLVMAArch64Desc -lLLVMAArch64Info -lLLVMAArch64AsmPrinter -lLLVMAArch64Utils \
-        -lLLVMMIRParser -lLLVMAsmParser -lLLVMLibDriver -lLLVMOption -lLLVMDebugInfoPDB -lLLVMTableGen \
-        -lLLVMOrcJIT -lLLVMLineEditor -lLLVMInstrumentation -lLLVMX86Disassembler -lLLVMX86AsmParser \
+        -lLLVMAsmParser -lLLVMOption -lLLVMTableGen \
+        -lLLVMLineEditor -lLLVMInstrumentation -lLLVMX86Disassembler -lLLVMX86AsmParser \
         -lLLVMX86CodeGen -lLLVMSelectionDAG -lLLVMAsmPrinter -lLLVMX86Desc -lLLVMMCDisassembler \
-        -lLLVMX86Info -lLLVMX86AsmPrinter -lLLVMX86Utils -lLLVMMCJIT -lLLVMDebugInfoDWARF \
-        -lLLVMPasses -lLLVMipo -lLLVMVectorize -lLLVMInterpreter -lLLVMExecutionEngine \
+        -lLLVMX86Info -lLLVMX86AsmPrinter -lLLVMX86Utils -lLLVMMCJIT \
+        -lLLVMipo -lLLVMVectorize -lLLVMInterpreter -lLLVMExecutionEngine \
         -lLLVMRuntimeDyld -lLLVMCodeGen -lLLVMTarget -lLLVMScalarOpts -lLLVMProfileData \
         -lLLVMObject -lLLVMMCParser -lLLVMBitReader -lLLVMInstCombine -lLLVMTransformUtils \
         -lLLVMipa -lLLVMMC -lLLVMAnalysis -lLLVMCore -lLLVMSupport -lz -lpthread -lcurses -ldl
 
 HEADERS += \
     test.hpp
+
+unix {
+    isEmpty(PREFIX) {
+        PREFIX = /usr/local
+    }
+    utilFiles.path = $$PREFIX/bin
+    INSTALLS += utilFiles
+}
+
+win32 {
+    isEmpty(PREFIX) {
+        PREFIX = $$PWD/pkg
+    }
+    utilFiles.path = $$PREFIX/bin
+    INSTALLS += utilFiles
+}
diff --git a/atdna/main.cpp b/atdna/main.cpp
index 3bd577d..336f0e4 100644
--- a/atdna/main.cpp
+++ b/atdna/main.cpp
@@ -3,14 +3,13 @@
 #include "clang/Frontend/CompilerInstance.h"
 #include "clang/Frontend/FrontendAction.h"
 #include "clang/Tooling/Tooling.h"
-#include "clang/Tooling/CommonOptionsParser.h"
 #include "clang/Lex/Preprocessor.h"
 #include "clang/Sema/Sema.h"
 #include "clang/AST/RecordLayout.h"
 #include "clang/AST/DeclCXX.h"
+#include "clang/Basic/Version.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/CommandLine.h"
-#include <map>
 
 static llvm::cl::opt<bool> Help("h", llvm::cl::desc("Alias for -help"), llvm::cl::Hidden);
 
@@ -20,132 +19,133 @@ static llvm::cl::opt<std::string> OutputFilename("o",
                                                  llvm::cl::desc("Specify output filename"),
                                                  llvm::cl::value_desc("filename"),
                                                  llvm::cl::Prefix);
+
 static llvm::cl::list<std::string> InputFilenames(llvm::cl::Positional,
                                                   llvm::cl::desc("<Input files>"),
                                                   llvm::cl::OneOrMore);
 
-class ATDNAEndianVisitor : public clang::RecursiveASTVisitor<ATDNAEndianVisitor>
-{
-    clang::ASTContext& context;
-    std::map<const clang::CXXRecordDecl*, int>& declTracker;
-public:
-    explicit ATDNAEndianVisitor(clang::ASTContext& ctxin,
-                                std::map<const clang::CXXRecordDecl*, int>& dt)
-    : context(ctxin), declTracker(dt) {}
-
-    bool VisitCXXRecordDecl(clang::CXXRecordDecl* decl)
-    {
-        if (decl->isInvalidDecl() || !decl->hasDefinition())
-            return true;
-
-        if (!decl->getNumBases())
-            return true;
-
-        /* First ensure this inherits from struct Athena::io::DNA */
-        bool foundDNA = false;
-        for (const clang::CXXBaseSpecifier& base : decl->bases())
-        {
-            clang::QualType canonType = base.getType().getCanonicalType();
-            if (!canonType.getAsString().compare(0, 22, "struct Athena::io::DNA"))
-            {
-                foundDNA = true;
-                const clang::CXXRecordDecl* recordDecl = canonType.getTypePtr()->getAsCXXRecordDecl();
-                if (recordDecl->getTemplateSpecializationKind())
-                {
-                    const clang::ClassTemplateSpecializationDecl* specDecl = (const clang::ClassTemplateSpecializationDecl*)recordDecl;
-                    const clang::TemplateArgumentList& templateArgs = specDecl->getTemplateInstantiationArgs();
-                    if (templateArgs.size())
-                    {
-                        const clang::TemplateArgument& arg = templateArgs.get(0);
-                        if (arg.getKind() == clang::TemplateArgument::Integral)
-                        {
-                            llvm::APSInt endian = arg.getAsIntegral();
-                            if (endian == 1) /* LittleEndian */
-                                declTracker[recordDecl] = 1;
-                            else if (endian == 2) /* BigEndian */
-                                declTracker[recordDecl] = 2;
-                        }
-                    }
-                }
-
-                break;
-            }
-        }
-        return true;
-    }
-};
-
 class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
 {
     clang::ASTContext& context;
-    llvm::raw_pwrite_stream& fileOut;
-    std::map<const clang::CXXRecordDecl*, int>& declTracker;
+    llvm::raw_fd_ostream& fileOut;
 
-    static std::string GetOpString(clang::BuiltinType* bType, unsigned width,
-                                   std::string fieldName, bool writerPass)
+    std::string GetOpString(const clang::Type* theType, unsigned width,
+                            std::string fieldName, bool writerPass)
     {
         if (writerPass)
         {
-            if (bType->isUnsignedInteger())
+            if (theType->isBuiltinType())
             {
-                if (width == 8)
-                    return "writer.writeUByte(" + fieldName + ");";
-                else if (width == 16)
-                    return "writer.writeUint16(" + fieldName + ");";
-                else if (width == 32)
-                    return "writer.writeUint32(" + fieldName + ");";
-                else if (width == 64)
-                    return "writer.writeUint64(" + fieldName + ");";
+                const clang::BuiltinType* bType = (clang::BuiltinType*)theType;
+                if (bType->isUnsignedInteger())
+                {
+                    if (width == 8)
+                        return "writer.writeUByte(" + fieldName + ");";
+                    else if (width == 16)
+                        return "writer.writeUint16(" + fieldName + ");";
+                    else if (width == 32)
+                        return "writer.writeUint32(" + fieldName + ");";
+                    else if (width == 64)
+                        return "writer.writeUint64(" + fieldName + ");";
+                }
+                else if (bType->isSignedInteger())
+                {
+                    if (width == 8)
+                        return "writer.writeByte(" + fieldName + ");";
+                    else if (width == 16)
+                        return "writer.writeInt16(" + fieldName + ");";
+                    else if (width == 32)
+                        return "writer.writeInt32(" + fieldName + ");";
+                    else if (width == 64)
+                        return "writer.writeInt64(" + fieldName + ");";
+                }
+                else if (bType->isFloatingPoint())
+                {
+                    if (width == 32)
+                        return "writer.writeFloat(" + fieldName + ");";
+                    else if (width == 64)
+                        return "writer.writeDouble(" + fieldName + ");";
+                }
             }
-            else if (bType->isSignedInteger())
+            else if (theType->isRecordType())
             {
-                if (width == 8)
-                    return "writer.writeByte(" + fieldName + ");";
-                else if (width == 16)
-                    return "writer.writeInt16(" + fieldName + ");";
-                else if (width == 32)
-                    return "writer.writeInt32(" + fieldName + ");";
-                else if (width == 64)
-                    return "writer.writeInt64(" + fieldName + ");";
-            }
-            else if (bType->isFloatingPoint())
-            {
-                if (width == 32)
-                    return "writer.writeFloat(" + fieldName + ");";
-                else if (width == 64)
-                    return "writer.writeDouble(" + fieldName + ");";
+                const clang::RecordDecl* rDecl = ((clang::RecordType*)theType)->getDecl();
+                for (const clang::FieldDecl* field : rDecl->fields())
+                {
+                    if (!field->getNameAsString().compare("clangVec"))
+                    {
+                        const clang::VectorType* vType = (clang::VectorType*)field->getType().getTypePtr();
+                        if (vType->isVectorType())
+                        {
+                            const clang::BuiltinType* eType = (clang::BuiltinType*)vType->getElementType().getTypePtr();
+                            if (!eType->isBuiltinType() || !eType->isFloatingPoint() ||
+                                context.getTypeInfo(eType).Width != 32)
+                                continue;
+                            if (vType->getNumElements() == 3)
+                                return "writer.writeVec3f(" + fieldName + ");";
+                            else if (vType->getNumElements() == 4)
+                                return "writer.writeVec4f(" + fieldName + ");";
+                        }
+                    }
+                }
             }
         }
         else
         {
-            if (bType->isUnsignedInteger())
+            if (theType->isBuiltinType())
             {
-                if (width == 8)
-                    return fieldName + " = reader.readUByte();";
-                else if (width == 16)
-                    return fieldName + " = reader.readUint16();";
-                else if (width == 32)
-                    return fieldName + " = reader.readUint32();";
-                else if (width == 64)
-                    return fieldName + " = reader.readUint64();";
+                const clang::BuiltinType* bType = (clang::BuiltinType*)theType;
+                if (bType->isUnsignedInteger())
+                {
+                    if (width == 8)
+                        return "reader.readUByte()";
+                    else if (width == 16)
+                        return "reader.readUint16()";
+                    else if (width == 32)
+                        return "reader.readUint32()";
+                    else if (width == 64)
+                        return "reader.readUint64()";
+                }
+                else if (bType->isSignedInteger())
+                {
+                    if (width == 8)
+                        return "reader.readByte()";
+                    else if (width == 16)
+                        return "reader.readInt16()";
+                    else if (width == 32)
+                        return "reader.readInt32()";
+                    else if (width == 64)
+                        return "reader.readInt64()";
+                }
+                else if (bType->isFloatingPoint())
+                {
+                    if (width == 32)
+                        return "reader.readFloat()";
+                    else if (width == 64)
+                        return "reader.readDouble()";
+                }
             }
-            else if (bType->isSignedInteger())
+            else if (theType->isRecordType())
             {
-                if (width == 8)
-                    return fieldName + " = reader.readByte();";
-                else if (width == 16)
-                    return fieldName + " = reader.readInt16();";
-                else if (width == 32)
-                    return fieldName + " = reader.readInt32();";
-                else if (width == 64)
-                    return fieldName + " = reader.readInt64();";
-            }
-            else if (bType->isFloatingPoint())
-            {
-                if (width == 32)
-                    return fieldName + " = reader.readFloat();";
-                else if (width == 64)
-                    return fieldName + " = reader.readDouble();";
+                const clang::RecordDecl* rDecl = ((clang::RecordType*)theType)->getDecl();
+                for (const clang::FieldDecl* field : rDecl->fields())
+                {
+                    if (!field->getNameAsString().compare("clangVec"))
+                    {
+                        const clang::VectorType* vType = (clang::VectorType*)field->getType().getTypePtr();
+                        if (vType->isVectorType())
+                        {
+                            const clang::BuiltinType* eType = (clang::BuiltinType*)vType->getElementType().getTypePtr();
+                            if (!eType->isBuiltinType() || !eType->isFloatingPoint() ||
+                                context.getTypeInfo(eType).Width != 32)
+                                continue;
+                            if (vType->getNumElements() == 3)
+                                return "reader.readVec3f()";
+                            else if (vType->getNumElements() == 4)
+                                return "reader.readVec4f()";
+                        }
+                    }
+                }
             }
         }
         return std::string();
@@ -153,9 +153,8 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
 
 public:
     explicit ATDNAEmitVisitor(clang::ASTContext& ctxin,
-                              llvm::raw_pwrite_stream& fo,
-                              std::map<const clang::CXXRecordDecl*, int>& dt)
-    : context(ctxin), fileOut(fo), declTracker(dt) {}
+                              llvm::raw_fd_ostream& fo)
+    : context(ctxin), fileOut(fo) {}
 
     bool VisitCXXRecordDecl(clang::CXXRecordDecl* decl)
     {
@@ -179,44 +178,43 @@ public:
         if (!foundDNA)
             return true;
 
-        /* Context endian */
-        int contextEndian = llvm::sys::IsLittleEndianHost ? 1 : 2;
-        if (declTracker.find(decl) != declTracker.end())
-            contextEndian = declTracker[decl];
-
         for (int p=0 ; p<2 ; ++p)
         {
             if (p)
-                fileOut << decl->getQualifiedNameAsString() << "::write(Athena::IStreamWriter& writer)\n{\n";
+                fileOut << "void " << decl->getQualifiedNameAsString() << "::write(Athena::IStreamWriter& writer) const\n{\n";
             else
-                fileOut << decl->getQualifiedNameAsString() << "::read(Athena::IStreamReader& reader)\n{\n";
-            int currentEndian = 0;
+                fileOut << "void " << decl->getQualifiedNameAsString() << "::read(Athena::IStreamReader& reader)\n{\n";
+            int currentEndian = -1;
 
             for (const clang::FieldDecl* field : decl->fields())
             {
                 clang::QualType qualType = field->getType();
                 clang::TypeInfo regTypeInfo = context.getTypeInfo(qualType);
                 const clang::Type* regType = qualType.getTypePtrOrNull();
+                if (regType->getTypeClass() == clang::Type::Elaborated)
+                    regType = regType->getUnqualifiedDesugaredType();
+
                 if (regType->getTypeClass() == clang::Type::TemplateSpecialization)
                 {
                     const clang::TemplateSpecializationType* tsType = (const clang::TemplateSpecializationType*)regType;
                     const clang::TemplateDecl* tsDecl = tsType->getTemplateName().getAsTemplateDecl();
                     const clang::TemplateParameterList* classParms = tsDecl->getTemplateParameters();
-                    int endian = 0;
-                    for (const clang::NamedDecl* param : *classParms)
-                    {
-                        if (param->getKind() == clang::Decl::NonTypeTemplateParm)
-                        {
-                            const clang::NonTypeTemplateParmDecl* nttParm = (clang::NonTypeTemplateParmDecl*)param;
-                            const clang::Expr* defArg = nttParm->getDefaultArgument();
-                            llvm::APSInt result;
-                            if (defArg->isIntegerConstantExpr(result, context))
-                                endian = result.getExtValue();
-                        }
-                    }
 
                     if (!tsDecl->getNameAsString().compare("Value"))
                     {
+                        int endian = -1;
+                        if (classParms->size() >= 2)
+                        {
+                            const clang::NamedDecl* endianParm = classParms->getParam(1);
+                            if (endianParm->getKind() == clang::Decl::NonTypeTemplateParm)
+                            {
+                                const clang::NonTypeTemplateParmDecl* nttParm = (clang::NonTypeTemplateParmDecl*)endianParm;
+                                const clang::Expr* defArg = nttParm->getDefaultArgument();
+                                llvm::APSInt result;
+                                if (defArg->isIntegerConstantExpr(result, context))
+                                    endian = result.getSExtValue();
+                            }
+                        }
 
                         std::string ioOp;
                         const clang::TemplateArgument* typeArg = nullptr;
@@ -225,48 +223,158 @@ public:
                             if (arg.getKind() == clang::TemplateArgument::Type)
                             {
                                 typeArg = &arg;
-                                clang::BuiltinType* builtinType = (clang::BuiltinType*)arg.getAsType().getCanonicalType().getTypePtr();
-                                if (builtinType->isBuiltinType())
-                                    ioOp = GetOpString(builtinType, regTypeInfo.Width, field->getName().str(), p);
+                                const clang::Type* type = arg.getAsType().getCanonicalType().getTypePtr();
+                                ioOp = GetOpString(type, regTypeInfo.Width, field->getName().str(), p);
                             }
                             else if (arg.getKind() == clang::TemplateArgument::Expression)
                             {
                                 llvm::APSInt value;
                                 if (arg.getAsExpr()->isIntegerConstantExpr(value, context))
-                                    endian = value.getExtValue();
+                                    endian = value.getSExtValue();
                             }
                         }
 
                         if (ioOp.empty())
                         {
-                            clang::DiagnosticBuilder diag = context.getDiagnostics().Report(tsDecl->getLocation(), context.getDiagnostics().getDiagnosticIDs()->getCustomDiagID(clang::DiagnosticIDs::Fatal, "Athena error"));
+                            clang::DiagnosticBuilder diag = context.getDiagnostics().Report(tsDecl->getLocation(), context.getDiagnostics().getCustomDiagID(clang::DiagnosticsEngine::Fatal, "Athena error"));
                             diag.AddString("Unable to use type '" + tsDecl->getNameAsString() + "' with Athena");
                             if (typeArg)
                                 diag.AddSourceRange(clang::CharSourceRange(clang::TemplateArgumentLoc(*typeArg, clang::TemplateArgumentLocInfo()).getSourceRange(), false));
                             continue;
                         }
 
-                        if (!endian)
-                            endian = contextEndian;
-                        if (endian && currentEndian != endian)
+                        if (currentEndian != endian)
                         {
-                            if (endian == 1)
+                            if (endian == 0)
                                 fileOut << (p ? "    writer.setEndian(Athena::LittleEndian);\n" : "    reader.setEndian(Athena::LittleEndian);\n");
-                            else if (endian == 2)
+                            else if (endian == 1)
                                 fileOut << (p ? "    writer.setEndian(Athena::BigEndian);\n" : "    reader.setEndian(Athena::BigEndian);\n");
                             currentEndian = endian;
                         }
 
-                        fileOut << "    " << ioOp << "\n";
-
+                        if (!p)
+                            fileOut << "    " << field->getName() << " = " << ioOp << ";\n";
+                        else
+                            fileOut << "    " << ioOp << "\n";
                     }
                     else if (!tsDecl->getNameAsString().compare("Vector"))
                     {
+                        int endian = -1;
+                        if (classParms->size() >= 3)
+                        {
+                            const clang::NamedDecl* endianParm = classParms->getParam(2);
+                            if (endianParm->getKind() == clang::Decl::NonTypeTemplateParm)
+                            {
+                                const clang::NonTypeTemplateParmDecl* nttParm = (clang::NonTypeTemplateParmDecl*)endianParm;
+                                const clang::Expr* defArg = nttParm->getDefaultArgument();
+                                llvm::APSInt result;
+                                if (defArg->isIntegerConstantExpr(result, context))
+                                    endian = result.getSExtValue();
+                            }
+                        }
+
+                        std::string ioOp;
+                        std::string sizeVar;
+                        const clang::TemplateArgument* typeArg = nullptr;
+                        const clang::TemplateArgument* sizeArg = nullptr;
+                        size_t idx = 0;
+                        for (const clang::TemplateArgument& arg : *tsType)
+                        {
+                            if (arg.getKind() == clang::TemplateArgument::Type)
+                            {
+                                typeArg = &arg;
+                                const clang::Type* type = arg.getAsType().getCanonicalType().getTypePtr();
+                                clang::TypeInfo typeInfo = context.getTypeInfo(arg.getAsType().getCanonicalType());
+                                ioOp = GetOpString(type, typeInfo.Width, "*it", p);
+                            }
+                            else if (arg.getKind() == clang::TemplateArgument::Expression)
+                            {
+                                const clang::Expr* expr = arg.getAsExpr();
+                                if (idx == 1)
+                                {
+                                    sizeArg = &arg;
+                                    const clang::UnaryExprOrTypeTraitExpr* uExpr = (clang::UnaryExprOrTypeTraitExpr*)expr;
+                                    if (uExpr->getStmtClass() == clang::Stmt::UnaryExprOrTypeTraitExprClass &&
+                                        uExpr->getKind() == clang::UETT_SizeOf)
+                                    {
+                                        const clang::Expr* argExpr = uExpr->getArgumentExpr();
+                                        while (argExpr->getStmtClass() == clang::Stmt::ParenExprClass)
+                                            argExpr = ((clang::ParenExpr*)argExpr)->getSubExpr();
+                                        if (argExpr->getStmtClass() == clang::Stmt::DeclRefExprClass)
+                                        {
+                                            const clang::DeclRefExpr* refExpr = (clang::DeclRefExpr*)argExpr;
+                                            sizeVar = refExpr->getFoundDecl()->getNameAsString();
+                                        }
+                                    }
+                                }
+                                else if (idx == 2)
+                                {
+                                    llvm::APSInt value;
+                                    if (expr->isIntegerConstantExpr(value, context))
+                                        endian = value.getSExtValue();
+                                }
+                            }
+                            ++idx;
+                        }
+
+                        if (ioOp.empty())
+                        {
+                            clang::DiagnosticBuilder diag = context.getDiagnostics().Report(tsDecl->getLocation(), context.getDiagnostics().getCustomDiagID(clang::DiagnosticsEngine::Fatal, "Athena error"));
+                            diag.AddString("Unable to use type '" + tsDecl->getNameAsString() + "' with Athena");
+                            if (typeArg)
+                                diag.AddSourceRange(clang::CharSourceRange(clang::TemplateArgumentLoc(*typeArg, clang::TemplateArgumentLocInfo()).getSourceRange(), false));
+                            continue;
+                        }
+
+                        if (sizeVar.empty())
+                        {
+                            clang::DiagnosticBuilder diag = context.getDiagnostics().Report(tsDecl->getLocation(), context.getDiagnostics().getCustomDiagID(clang::DiagnosticsEngine::Fatal, "Athena error"));
+                            diag.AddString("Unable to use type '" + tsDecl->getNameAsString() + "' with Athena");
+                            if (sizeArg)
+                                diag.AddSourceRange(clang::CharSourceRange(clang::TemplateArgumentLoc(*sizeArg, clang::TemplateArgumentLocInfo()).getSourceRange(), false));
+                            continue;
+                        }
+
+                        if (currentEndian != endian)
+                        {
+                            if (endian == 0)
+                                fileOut << (p ? "    writer.setEndian(Athena::LittleEndian);\n" : "    reader.setEndian(Athena::LittleEndian);\n");
+                            else if (endian == 1)
+                                fileOut << (p ? "    writer.setEndian(Athena::BigEndian);\n" : "    reader.setEndian(Athena::BigEndian);\n");
+                            currentEndian = endian;
+                        }
+
+                        if (!p)
+                        {
+                            fileOut << "    " << field->getName() << ".clear();\n";
+                            fileOut << "    " << field->getName() << ".reserve(" << sizeVar << ");\n";
+                            fileOut << "    for (int i=0 ; i<" << sizeVar << " ; ++i)\n        " << field->getName() << ".push_back(" << ioOp << ");\n";
+                        }
+                        else
+                            fileOut << "    for (int i=0, auto it=" << field->getName() << ".begin() ; i<" << sizeVar << " && it!=" << field->getName() << ".end() ; ++i, ++it)\n        " << ioOp << "\n";
 
                     }
 
                 }
 
+                else if (regType->getTypeClass() == clang::Type::Record)
+                {
+                    const clang::CXXRecordDecl* cxxRDecl = regType->getAsCXXRecordDecl();
+                    if (cxxRDecl)
+                    {
+                        for (const clang::CXXBaseSpecifier& base : cxxRDecl->bases())
+                        {
+                            clang::QualType canonType = base.getType().getCanonicalType();
+                            if (!canonType.getAsString().compare(0, 22, "struct Athena::io::DNA"))
+                            {
+                                fileOut << "    " << field->getNameAsString() << (p ? ".write(writer);\n" : ".read(reader);\n");
+                                currentEndian = -1;
+                                break;
+                            }
+                        }
+                    }
+                }
+
             }
 
             fileOut << "}\n\n";
@@ -279,36 +387,17 @@ public:
 
 class ATDNAConsumer : public clang::ASTConsumer
 {
-    ATDNAEndianVisitor endianVisitor;
     ATDNAEmitVisitor emitVisitor;
-    llvm::raw_pwrite_stream& fileOut;
-    std::map<const clang::CXXRecordDecl*, int> declTracker;
+    llvm::raw_fd_ostream& fileOut;
 public:
-    explicit ATDNAConsumer(clang::ASTContext& context, llvm::raw_pwrite_stream& fo)
-    : endianVisitor(context, declTracker), emitVisitor(context, fo, declTracker),
+    explicit ATDNAConsumer(clang::ASTContext& context, llvm::raw_fd_ostream& fo)
+    : emitVisitor(context, fo),
       fileOut(fo) {}
     void HandleTranslationUnit(clang::ASTContext& context)
     {
-        /* First pass - map explicit endian specifiers */
-        endianVisitor.TraverseDecl(context.getTranslationUnitDecl());
-
-        /* Resolve endian specifiers */
-        for (auto decl : declTracker)
-        {
-            for (const clang::DeclContext* prevDecl = decl.first->getParent();
-                 prevDecl ; prevDecl = prevDecl->getParent())
-            {
-                if (prevDecl->isRecord() &&
-                    declTracker.find((clang::CXXRecordDecl*)prevDecl) != declTracker.end())
-                {
-                    decl.second = declTracker[(clang::CXXRecordDecl*)prevDecl];
-                    break;
-                }
-            }
-        }
-
         /* Write file head */
         fileOut << "/* Auto generated atdna implementation */\n"
+                   "#include <Athena/Global.hpp>\n"
                    "#include <Athena/IStreamReader.hpp>\n"
                    "#include <Athena/IStreamWriter.hpp>\n\n";
         for (const std::string& inputf : InputFilenames)
@@ -327,7 +416,7 @@ public:
     std::unique_ptr<clang::ASTConsumer> CreateASTConsumer(clang::CompilerInstance& compiler,
                                                           llvm::StringRef /*filename*/)
     {
-        llvm::raw_pwrite_stream* fileout;
+        llvm::raw_fd_ostream* fileout;
         if (OutputFilename.size())
             fileout = compiler.createOutputFile(OutputFilename, false, true, "", "", true);
         else
@@ -343,14 +432,22 @@ int main(int argc, const char** argv)
     if (Help)
         llvm::cl::PrintHelpMessage();
 
-    llvm::IntrusiveRefCntPtr<clang::FileManager> fman(new clang::FileManager(clang::FileSystemOptions()));
     std::vector<std::string> args = {"clang-tool",
                                      "-fsyntax-only",
-                                     "-std=c++11",
-                                     "-I/run/media/jacko/Extra/llvm-build/usrmin/lib/clang/3.7.0/include",
-                                     "-I/home/jacko/Athena/include"};
+                                     "-std=c++11"};
+
+    llvm::IntrusiveRefCntPtr<clang::FileManager> fman(new clang::FileManager(clang::FileSystemOptions()));
+    const clang::FileEntry* selfEntry = fman->getFile(argv[0]);
+    if (selfEntry && selfEntry->isValid())
+    {
+        std::string base(selfEntry->getDir()->getName());
+        args.push_back("-I" + base + "/clang/" + CLANG_VERSION_STRING + "/include");
+        args.push_back("-I" + base);
+    }
+
     for (int a=1 ; a<argc ; ++a)
         args.push_back(argv[a]);
+
     clang::tooling::ToolInvocation TI(args, new ATDNAAction, fman.get());
     if (TI.run())
         return 0;
diff --git a/atdna/test.hpp b/atdna/test.hpp
index 26aacf2..886c412 100644
--- a/atdna/test.hpp
+++ b/atdna/test.hpp
@@ -1,14 +1,33 @@
 #include <stdint.h>
-#include <vector>
 #include <Athena/DNA.hpp>
 
-
 using namespace Athena;
 
-struct ANCSFile : public io::DNA<BigEndian>
+struct ANCSSubFile : public io::DNA<BigEndian>
 {
-    Value<atUint32> var32;
-    Value<atUint16> var16;
-    Vector<atUint32> vec;
+    DECL_DNA
+    Value<atUint32> sub1;
+    Value<atUint32> sub2;
+};
+
+struct ANCSFile : public io::DNA<BigEndian>
+{
+    DECL_DNA
+    Value<atUint32> var32;
+    Value<atUint16> var16;
+    Value<atVec3f> vec3;
+    Value<atVec4f> vec4;
+
+    struct ANCSNestedSubFile : public io::DNA<BigEndian>
+    {
+        DECL_DNA
+        Value<atUint32> nestSub1;
+        Value<atUint32> nestSub2;
+    } nestedSubFile;
+
+    ANCSSubFile subFile;
+
+    Value<atUint32> arrCount;
+    Vector<atUint32, sizeof(arrCount)> array;
 };
 
diff --git a/include/Athena/DNA.hpp b/include/Athena/DNA.hpp
index 2658d81..31ad754 100644
--- a/include/Athena/DNA.hpp
+++ b/include/Athena/DNA.hpp
@@ -5,6 +5,7 @@
 #include "IStreamReader.hpp"
 #include "IStreamWriter.hpp"
 #include <vector>
+#include <functional>
 
 namespace Athena
 {
@@ -17,19 +18,24 @@ namespace io
  * Athena bundles a build-tool called 'atdna'. This tool functions
  * just like the 'clang' compiler, except it emits
  */
-template <Endian DNAE = InheritEndian>
+template <Endian DNAE>
 struct DNA
 {
     template <typename T, Endian VE = DNAE>
     using Value = T;
 
-    template <typename T, Endian VE = DNAE>
+    template <typename T, size_t cntVar, Endian VE = DNAE>
     using Vector = std::vector<T>;
 
     virtual void read(IStreamReader&)=0;
     virtual void write(IStreamWriter&) const=0;
 };
 
+/** Macro to automatically declare read/write methods in subclasses */
+#define DECL_DNA \
+    void read(Athena::io::IStreamReader&); \
+    void write(Athena::io::IStreamWriter&) const; \
+
 }
 }
 
diff --git a/include/Athena/Global.hpp b/include/Athena/Global.hpp
index 3353733..c9b6d16 100644
--- a/include/Athena/Global.hpp
+++ b/include/Athena/Global.hpp
@@ -82,7 +82,6 @@ enum SeekOrigin
 
 enum Endian
 {
-    InheritEndian=0,
     LittleEndian,
     BigEndian
 };
diff --git a/include/Athena/Types.hpp b/include/Athena/Types.hpp
index 7e55f11..53445df 100644
--- a/include/Athena/Types.hpp
+++ b/include/Athena/Types.hpp
@@ -56,6 +56,34 @@ typedef unsigned long atUint32;
 typedef signed   long long atInt64;
 typedef unsigned long long atUint64;
 
+// Vector types
+#if __SSE__
+#include <xmmintrin.h>
+#endif
+
+typedef union
+{
+#if __clang__
+    float clangVec __attribute__((__vector_size__(12)));
+#endif
+#if __SSE__
+    __m128 mVec128;
+#endif
+    float vec[3];
+} atVec3f;
+
+typedef union
+{
+#if __clang__
+    float clangVec __attribute__((__vector_size__(16)));
+#endif
+#if __SSE__
+    __m128 mVec128;
+#endif
+    float vec[4];
+} atVec4f;
+
+
 #ifndef NULL
 #ifdef __cplusplus
 #define NULL 0