Another huge pile of work for about two months

Well I should commit every change instead of this madness. I am not
documenting changes as all this is just improvements and implementation
progression.

1 files changed, 7 insertions, 3 deletions

diff --git a/qtmips_machine/registers.h b/qtmips_machine/registers.h
index a550f4a..905a212 100644
--- a/qtmips_machine/registers.h
+++ b/qtmips_machine/registers.h
@@ -8,18 +8,22 @@ class Registers : public QObject {
     Q_OBJECT
 public:
     Registers();
+    Registers(const Registers*);
 
-    std::uint32_t read_pc(); // Return current value of program counter
+    std::uint32_t read_pc() const; // Return current value of program counter
     std::uint32_t pc_inc(); // Increment program counter by four bytes
     std::uint32_t pc_jmp(std::int32_t offset); // Relative jump from current location in program counter
     void pc_abs_jmp(std::uint32_t address); // Absolute jump in program counter (write to pc)
 
-    std::uint32_t read_gp(std::uint8_t i); // Read general-purpose register
+    std::uint32_t read_gp(std::uint8_t i) const; // Read general-purpose register
     void write_gp(std::uint8_t i, std::uint32_t value); // Write general-purpose register
-    std::uint32_t read_hi_lo(bool hi); // true - read HI / false - read LO
+    std::uint32_t read_hi_lo(bool hi) const; // true - read HI / false - read LO
     void write_hi_lo(bool hi, std::uint32_t value);
 
+    bool operator ==(const Registers &c) const;
+
 signals:
+    void pc_update(std::uint32_t val);
     // TODO signals
 
 private: