69 lines
1.4 KiB
C++
69 lines
1.4 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.h"
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#include "common_types.h"
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/// Generic ARM11 CPU interface
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class ARM_Interface {
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public:
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ARM_Interface() {
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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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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 PC() = 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 Reg(int index) = 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 CPSR() = 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() = 0;
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/// Getter for num_instructions_
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u64 num_instructions() { return num_instructions_; }
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private:
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/// Execture next instruction
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virtual void ExecuteInstruction() = 0;
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u64 num_instructions_; ///< Number of instructions executed
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DISALLOW_COPY_AND_ASSIGN(ARM_Interface);
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};
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