78 lines
1.7 KiB
C++
78 lines
1.7 KiB
C++
// Copyright 2014 Citra Emulator Project
|
|
// Licensed under GPLv2
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include "common/common.h"
|
|
#include "common/common_types.h"
|
|
|
|
/// Generic ARM11 CPU interface
|
|
class ARM_Interface : NonCopyable {
|
|
public:
|
|
ARM_Interface() {
|
|
m_num_instructions = 0;
|
|
}
|
|
|
|
~ARM_Interface() {
|
|
}
|
|
|
|
/// Step CPU by one instruction
|
|
void Step() {
|
|
ExecuteInstruction();
|
|
m_num_instructions++;
|
|
}
|
|
|
|
/**
|
|
* Set the Program Counter to an address
|
|
* @param addr Address to set PC to
|
|
*/
|
|
virtual void SetPC(u32 addr) = 0;
|
|
|
|
/*
|
|
* Get the current Program Counter
|
|
* @return Returns current PC
|
|
*/
|
|
virtual u32 GetPC() const = 0;
|
|
|
|
/**
|
|
* Get an ARM register
|
|
* @param index Register index (0-15)
|
|
* @return Returns the value in the register
|
|
*/
|
|
virtual u32 GetReg(int index) const = 0;
|
|
|
|
/**
|
|
* Set an ARM register
|
|
* @param index Register index (0-15)
|
|
* @param value Value to set register to
|
|
*/
|
|
virtual void SetReg(int index, u32 value) = 0;
|
|
|
|
/**
|
|
* Get the current CPSR register
|
|
* @return Returns the value of the CPSR register
|
|
*/
|
|
virtual u32 GetCPSR() const = 0;
|
|
|
|
/**
|
|
* Returns the number of clock ticks since the last rese
|
|
* @return Returns number of clock ticks
|
|
*/
|
|
virtual u64 GetTicks() const = 0;
|
|
|
|
/// Getter for m_num_instructions
|
|
u64 GetNumInstructions() {
|
|
return m_num_instructions;
|
|
}
|
|
|
|
protected:
|
|
|
|
/// Execture next instruction
|
|
virtual void ExecuteInstruction() = 0;
|
|
|
|
private:
|
|
|
|
u64 m_num_instructions; ///< Number of instructions executed
|
|
|
|
};
|