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