515eb9973b
The first parameter (Register* reg) is only used as input (const-correctness). Change-Id: I5a75a9f7378913e491a8a22872f51a385e910af6
69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
#ifndef __CPU_STATE_HPP__
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#define __CPU_STATE_HPP__
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#include <cstring>
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#include <vector>
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#include "Register.hpp"
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namespace fail {
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/**
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* \class CPUState
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* This is the base class for the CPU state without any architecture specific additions. It contains
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* pure virtual functions for e.g. register access and have to be overridden in the backend
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* implementation.
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*/
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class CPUState {
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public:
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/**
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* Gets the content of the passed Register.
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* @param reg the register to get the content from
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*/
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virtual regdata_t getRegisterContent(const Register* reg) const = 0;
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/**
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* Writes the passed value into the given register.
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* @param reg the register that should be written to
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* @param value the value that should be written into the register
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*/
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virtual void setRegisterContent(const Register* reg, regdata_t value) = 0;
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/**
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* Returns the current instruction pointer.
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* @return the current eip
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*/
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virtual address_t getInstructionPointer() const = 0;
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/**
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* Returns the top address of the stack.
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* @return the starting address of the stack
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*/
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virtual address_t getStackPointer() const = 0;
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/**
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* Check whether the interrupt should be suppressed.
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* @param interruptNum the interrupt-type id
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* @return \c true if the interrupt is suppressed, \c false oterwise
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*/
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bool isSuppressedInterrupt(unsigned interruptNum) const;
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/**
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* Add a Interrupt to the list of suppressed.
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* @param interruptNum the interrupt-type id
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* @return \c true if sucessfully added, \c false otherwise (already
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* existing)
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*/
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bool addSuppressedInterrupt(unsigned interruptNum);
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/**
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* Remove a Interrupt from the list of suppressed.
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* @param interruptNum the interrupt-type id
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* @return \c true if sucessfully removed, \c false otherwise (not found)
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*/
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bool removeSuppressedInterrupt(unsigned interruptNum);
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protected:
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std::vector<unsigned> m_SuppressedInterrupts;
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};
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// FIXME (see CPU.cc): Weird, homeless global variable
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extern int interrupt_to_fire;
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} // end-of-namespace: fail
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#endif // __CPU_STATE_HPP__
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