1 files changed, 22 insertions, 19 deletions

diff --git a/asm/assembler.h b/asm/assembler.h
index ea23fbc..8cdaa31 100644
--- a/asm/assembler.h
+++ b/asm/assembler.h
@@ -28,18 +28,21 @@ public:
  {
  public:
   Immediate8(uint8_t value): m_value(value) {}
-  uint8_t value() {return m_value;}
+  uint8_t value() const {return m_value;}
   std::vector<uint8_t> getCode() {return {m_value};};
 
  private:
   uint8_t m_value;
  };
 
+ class Immediate64;
+
  class Immediate32
  {
  public:
   Immediate32(uint32_t value): m_value(value) {}
-  uint32_t value() { return m_value; }
+  Immediate32(const Immediate64&); ///< Convert from Immediate64 if data is small enough
+  uint32_t value() const { return m_value; }
   std::vector<uint8_t> getCode() {
    std::vector<uint8_t> result(size_t(4));
    *(reinterpret_cast<uint32_t*>(result.data())) = boost::endian::native_to_little(m_value);
@@ -54,7 +57,7 @@ public:
  {
  public:
   Immediate64(uint64_t value): m_value(value) {}
-  uint64_t value() { return m_value; }
+  uint64_t value() const { return m_value; }
   std::vector<uint8_t> getCode() {
    std::vector<uint8_t> result(size_t(8));
    *(reinterpret_cast<uint64_t*>(result.data())) = boost::endian::native_to_little(m_value);
@@ -69,7 +72,7 @@ public:
  {
  public:
   Register8(const std::string& name): m_name(name) {}
-  std::string name() { return m_name; }
+  std::string name() const { return m_name; }
 
  private:
   std::string m_name;
@@ -79,7 +82,7 @@ public:
  {
  public:
   Register32(const std::string& name): m_name(name) {}
-  std::string name() { return m_name; }
+  std::string name() const { return m_name; }
 
  private:
   std::string m_name;
@@ -89,7 +92,7 @@ public:
  {
  public:
   Register64(const std::string& name): m_name(name) {}
-  std::string name() { return m_name; }
+  std::string name() const { return m_name; }
 
  private:
   std::string m_name;
@@ -100,10 +103,10 @@ public:
  {
  public:
   Mem8Ptr64(const std::string& reg, int32_t offs = 0): m_reg(reg), m_offs(offs) {}
-  Mem8Ptr64(const std::string& reg, const std::string& reg2 = ""s, int32_t offs = 0): m_reg(reg), m_reg2(reg2), m_offs(offs) {}
-  std::string reg() { return m_reg; }
-  std::string reg2() { return m_reg2; }
-  int32_t offs() { return m_offs; }
+  Mem8Ptr64(const std::string& reg, const std::string& reg2, int32_t offs = 0): m_reg(reg), m_reg2(reg2), m_offs(offs) {}
+  std::string reg() const { return m_reg; }
+  std::string reg2() const { return m_reg2; }
+  int32_t offs() const { return m_offs; }
 
  private:
   std::string m_reg;
@@ -116,10 +119,10 @@ public:
  {
  public:
   Mem32Ptr64(const std::string& reg, int32_t offs = 0): m_reg(reg), m_offs(offs) {}
-  Mem32Ptr64(const std::string& reg, const std::string& reg2 = ""s, int32_t offs = 0): m_reg(reg), m_reg2(reg2), m_offs(offs) {}
-  std::string reg() { return m_reg; }
-  std::string reg2() { return m_reg2; }
-  int32_t offs() { return m_offs; }
+  Mem32Ptr64(const std::string& reg, const std::string& reg2, int32_t offs = 0): m_reg(reg), m_reg2(reg2), m_offs(offs) {}
+  std::string reg() const { return m_reg; }
+  std::string reg2() const { return m_reg2; }
+  int32_t offs() const { return m_offs; }
 
  private:
   std::string m_reg;
@@ -132,10 +135,10 @@ public:
  {
  public:
   Mem64Ptr64(const std::string& reg, int32_t offs = 0): m_reg(reg), m_offs(offs) {}
-  Mem64Ptr64(const std::string& reg, const std::string& reg2 = ""s, int32_t offs = 0): m_reg(reg), m_reg2(reg2), m_offs(offs) {}
-  std::string reg() { return m_reg; }
-  std::string reg2() { return m_reg2; }
-  int32_t offs() { return m_offs; }
+  Mem64Ptr64(const std::string& reg, const std::string& reg2, int32_t offs = 0): m_reg(reg), m_reg2(reg2), m_offs(offs) {}
+  std::string reg() const { return m_reg; }
+  std::string reg2() const { return m_reg2; }
+  int32_t offs() const { return m_offs; }
 
  private:
   std::string m_reg;
@@ -147,7 +150,7 @@ public:
  {
  public:
   Label(const std::string& name): m_name(name) {}
-  std::string name() { return m_name; }
+  std::string name() const { return m_name; }
 
  private:
   std::string m_name;