cleaned up arm_interface, added a setter to set registers for use with HLE return values

src/core/arm/interpreter/arm_interpreter.h

@@ -12,22 +12,55 @@
 
 class ARM_Interpreter : virtual public ARM_Interface {
 public:
+
     ARM_Interpreter();
     ~ARM_Interpreter();
 
-    void ExecuteInstruction();
-
+    /**
+     * Set the Program Counter to an address
+     * @param addr Address to set PC to
+     */
     void SetPC(u32 pc);
 
+    /*
+     * Get the current Program Counter
+     * @return Returns current PC
+     */
     u32 GetPC() const;
 
+    /**
+     * Get an ARM register
+     * @param index Register index (0-15)
+     * @return Returns the value in the register
+     */
     u32 GetReg(int index) const;
 
+    /**
+     * Set an ARM register
+     * @param index Register index (0-15)
+     * @param value Value to set register to
+     */
+    void SetReg(int index, u32 value);
+
+    /**
+     * Get the current CPSR register
+     * @return Returns the value of the CPSR register
+     */
     u32 GetCPSR() const;
 
+    /**
+     * Returns the number of clock ticks since the last reset
+     * @return Returns number of clock ticks
+     */
     u64 GetTicks() const;
 
+protected:
+
+    /// Execture next instruction
+    void ExecuteInstruction();
+
 private:
+
     ARMul_State* m_state;
 
     DISALLOW_COPY_AND_ASSIGN(ARM_Interpreter);