diff --git a/.idea/editor.xml b/.idea/editor.xml
index aa2a125..43702aa 100644
--- a/.idea/editor.xml
+++ b/.idea/editor.xml
@@ -27,6 +27,7 @@
     <option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SIMPLE_EMBEDDED_STATEMENT_STYLE/@EntryValue" value="LINE_BREAK" type="string" />
     <option name="/Default/CodeStyle/CodeFormatting/CppFormatting/SPACE_AFTER_CAST_EXPRESSION_PARENTHESES/@EntryValue" value="true" type="bool" />
     <option name="/Default/CodeStyle/CodeFormatting/CppFormatting/WRAP_LINES/@EntryValue" value="false" type="bool" />
+    <option name="/Default/CodeStyle/Generate/=CppEqualityOperators/Options/=GenerateSecondaryOperators/@EntryIndexedValue" value="False" type="string" />
     <option name="/Default/CodeStyle/Naming/CppNaming/Rules/=Classes_0020and_0020structs/@EntryIndexedValue" value="&lt;NamingElement Priority=&quot;1&quot;&gt;&lt;Descriptor Static=&quot;Indeterminate&quot; Constexpr=&quot;Indeterminate&quot; Const=&quot;Indeterminate&quot; Volatile=&quot;Indeterminate&quot; Accessibility=&quot;NOT_APPLICABLE&quot;&gt;&lt;type Name=&quot;__interface&quot; /&gt;&lt;type Name=&quot;class&quot; /&gt;&lt;type Name=&quot;struct&quot; /&gt;&lt;/Descriptor&gt;&lt;Policy Inspect=&quot;True&quot; Prefix=&quot;&quot; Suffix=&quot;&quot; Style=&quot;AaBb&quot; /&gt;&lt;/NamingElement&gt;" type="string" />
     <option name="/Default/CodeStyle/Naming/CppNaming/Rules/=Concepts/@EntryIndexedValue" value="&lt;NamingElement Priority=&quot;2&quot;&gt;&lt;Descriptor Static=&quot;Indeterminate&quot; Constexpr=&quot;Indeterminate&quot; Const=&quot;Indeterminate&quot; Volatile=&quot;Indeterminate&quot; Accessibility=&quot;NOT_APPLICABLE&quot;&gt;&lt;type Name=&quot;concept&quot; /&gt;&lt;/Descriptor&gt;&lt;Policy Inspect=&quot;True&quot; Prefix=&quot;&quot; Suffix=&quot;&quot; Style=&quot;AaBb&quot; /&gt;&lt;/NamingElement&gt;" type="string" />
     <option name="/Default/CodeStyle/Naming/CppNaming/Rules/=Enum_0020members/@EntryIndexedValue" value="&lt;NamingElement Priority=&quot;14&quot;&gt;&lt;Descriptor Static=&quot;Indeterminate&quot; Constexpr=&quot;Indeterminate&quot; Const=&quot;Indeterminate&quot; Volatile=&quot;Indeterminate&quot; Accessibility=&quot;NOT_APPLICABLE&quot;&gt;&lt;type Name=&quot;scoped enumerator&quot; /&gt;&lt;type Name=&quot;unscoped enumerator&quot; /&gt;&lt;/Descriptor&gt;&lt;Policy Inspect=&quot;True&quot; Prefix=&quot;&quot; Suffix=&quot;&quot; Style=&quot;AaBb&quot; /&gt;&lt;/NamingElement&gt;" type="string" />
diff --git a/src/assembler/assembler.cc b/src/assembler/assembler.cc
index f6d7df2..ed464ed 100644
--- a/src/assembler/assembler.cc
+++ b/src/assembler/assembler.cc
@@ -2,6 +2,14 @@
 
 namespace tyche::as {
 
+Assembler::Assembler(std::string const& source)
+{
 
+}
+
+ByteArray Assembler::assemble() const
+{
+    return {};
+}
 
 } // tyche
diff --git a/src/assembler/assembler.hh b/src/assembler/assembler.hh
index f717051..b5cd1bb 100644
--- a/src/assembler/assembler.hh
+++ b/src/assembler/assembler.hh
@@ -1,10 +1,17 @@
 #ifndef TYCHE_ASSEMBLER_HH
 #define TYCHE_ASSEMBLER_HH
 
+#include <string>
+
+#include "../common/bytearray.hh"
+
 namespace tyche::as {
 
 class Assembler {
+public:
+    explicit Assembler(std::string const& source);
 
+    [[nodiscard]] ByteArray assemble() const;
 };
 
 } // tyche
diff --git a/src/assembler/tests.cc b/src/assembler/tests.cc
index b72a36f..0d0bec4 100644
--- a/src/assembler/tests.cc
+++ b/src/assembler/tests.cc
@@ -1,5 +1,52 @@
+#include "assembler.hh"
 #include "gtest/gtest.h"
 
+#include "../bytecode/bytecodeprototype.hh"
+#include "../bytecode/bytecode.hh"
+#include "../vm/instruction.hh"
+
+using namespace tyche;
+using namespace tyche::as;
+using namespace tyche::bc;
+using namespace tyche::vm;
+
+TEST(Assember, Assembler)
+{
+    BytecodePrototype bp;
+    bp.constants.emplace_back(3.14f);
+    bp.constants.emplace_back("Hello world");
+    bp.functions.emplace_back(0, 0);
+    bp.functions.at(0).code.append_byte((uint8_t) Instruction::PushInt8);
+    bp.functions.at(0).code.append_int8(2);
+    bp.functions.at(0).code.append_byte((uint8_t) Instruction::PushInt8);
+    bp.functions.at(0).code.append_int8(3);
+    bp.functions.at(0).code.append_byte((uint8_t) Instruction::Sum);
+    bp.functions.at(0).code.append_byte((uint8_t) Instruction::Return);
+    bp.functions.emplace_back(0, 0);
+    bp.functions.at(1).code.append_byte((uint8_t) Instruction::PushInt16);
+    bp.functions.at(1).code.append_int16(5000);
+    bp.functions.at(1).code.append_byte((uint8_t) Instruction::Return);
+    ByteArray expected = Bytecode::generate(bp);
+
+    std::string src = R"(
+.const
+    0: 3.14
+    1: "Hello world"
+
+.function 0
+    pushi   2
+    pushi   3
+    sum
+    ret
+.function 1
+    pushi   5000
+    ret
+)";
+
+    ByteArray actual = Assembler(src).assemble();
+    ASSERT_EQ(expected, actual);
+}
+
 int main(int argc, char** argv)
 {
     testing::InitGoogleTest(&argc, argv);
diff --git a/src/common/bytearray.hh b/src/common/bytearray.hh
index 3cf6ef6..5f7a2fd 100644
--- a/src/common/bytearray.hh
+++ b/src/common/bytearray.hh
@@ -47,6 +47,8 @@ public:
 
     [[nodiscard]] std::string hexdump() const;
 
+    friend bool operator==(ByteArray const& lhs, ByteArray const& rhs) { return lhs.data_ == rhs.data_; }
+
 private:
     std::vector<uint8_t> data_ {};
 };