added option to set CPSR register to arm_interface

src/core/arm/arm_interface.h

@@ -55,6 +55,12 @@ public:
      */
     virtual u32 GetCPSR() const = 0;  
 
+    /**
+     * Set the current CPSR register
+     * @param cpsr Value to set CPSR to
+     */
+    virtual void SetCPSR(u32 cpsr) = 0;
+
     /**
      * Returns the number of clock ticks since the last rese
      * @return Returns number of clock ticks

src/core/arm/interpreter/arm_interpreter.cpp

@@ -77,6 +77,14 @@ u32 ARM_Interpreter::GetCPSR() const {
     return m_state->Cpsr;
 }
 
+/**
+ * Set the current CPSR register
+ * @param cpsr Value to set CPSR to
+ */
+void ARM_Interpreter::SetCPSR(u32 cpsr) {
+    m_state->Cpsr = cpsr;
+}
+
 /**
  * Returns the number of clock ticks since the last reset
  * @return Returns number of clock ticks

src/core/arm/interpreter/arm_interpreter.h

@@ -48,6 +48,12 @@ public:
      */
     u32 GetCPSR() const;
 
+    /**
+     * Set the current CPSR register
+     * @param cpsr Value to set CPSR to
+     */
+    void SetCPSR(u32 cpsr);
+
     /**
      * Returns the number of clock ticks since the last reset
      * @return Returns number of clock ticks