nstool/lib/nx/MemoryPageEntry.h
2017-07-07 17:09:03 +10:00

56 lines
1.3 KiB
C++

#pragma once
#include <string>
#include <fnd/types.h>
#include <nx/KernelCapability.h>
namespace nx
{
class MemoryPageEntry
{
public:
MemoryPageEntry();
MemoryPageEntry(const KernelCapability& kernel_cap);
MemoryPageEntry(u32 page);
MemoryPageEntry(u32 page, bool flag);
// kernel capability
const KernelCapability& getKernelCapability() const;
void setKernelCapability(const KernelCapability& kernel_cap);
// variables
u32 getPage() const;
void setPage(u32 page);
bool getFlag() const;
void setFlag(bool flag);
bool hasFlag() const;
void useFlag(bool useFlag);
private:
const std::string kModuleName = "MEMORY_PAGE_ENTRY";
static const u32 kPageBits = 24;
static const u32 kMaxPage = BIT(kPageBits) - 1;
KernelCapability mCap;
u32 mPage;
bool mFlag;
bool mUseFlag;
inline void updateCapField()
{
u32 field = 0;
field |= (u32)(mPage & kMaxPage) << 0;
field |= (u32)(mFlag) << kPageBits;
mCap.setField(field);
mCap.setType(mUseFlag ? KernelCapability::KC_MEMORY_MAP : KernelCapability::KC_IO_MEMORY_MAP);
}
inline void processCapField()
{
u32 field = mCap.getField();
mPage = (field >> 0) & kMaxPage;
mFlag = (field >> kPageBits);
mUseFlag = mCap.getType() == KernelCapability::KC_MEMORY_MAP;
}
};
}