internal static uint Get(uint descriptor)
{
DebugStub.Assert(IsType.Get(descriptor, L1.CoarsePageTableType) ||
IsType.Get(descriptor, L1.SectionType) ||
IsType.Get(descriptor, L1.FinePageTableType));
return((descriptor & L1.DomainMask) >> L1.DomainRoll);
}
internal static AccessPermission Get(uint descriptor)
{
DebugStub.Assert(IsType.Get(descriptor, L1.SectionType) ||
IsType.Get(descriptor, L1.SupersectionType));
return((AccessPermission)((descriptor & L1.ApMask) >> L1.ApRoll));
}
internal static void Set(ref uint descriptor, AccessPermission ap)
{
DebugStub.Assert(IsType.Get(descriptor, L1.SectionType) ||
IsType.Get(descriptor, L1.SupersectionType));
descriptor = ((descriptor & ~L1.ApMask) | ((uint)ap) << L1.ApRoll);
}
internal static uint Get(uint descriptor)
{
DebugStub.Assert(IsType.Get(descriptor, L1.SectionType) ||
IsType.Get(descriptor, L1.SupersectionType));
return((descriptor & L1.TexMask) >> L1.TexRoll);
}
internal static void Set(ref uint descriptor, uint tex)
{
DebugStub.Assert(IsType.Get(descriptor, L1.SectionType) ||
IsType.Get(descriptor, L1.SupersectionType));
DebugStub.Assert(((tex << L1.TexRoll) & ~L1.TexMask) == 0);
descriptor = (descriptor & L1.TexMask) | (tex << L1.TexRoll);
}
internal static void Set(ref uint descriptor, uint domain)
{
DebugStub.Assert(IsType.Get(descriptor, L1.CoarsePageTableType) ||
IsType.Get(descriptor, L1.SectionType) ||
IsType.Get(descriptor, L1.FinePageTableType));
DebugStub.Assert((domain & (L1.DomainMask >> L1.DomainRoll)) == 0);
descriptor = ((descriptor & ~L1.DomainMask) |
(domain << L1.DomainRoll));
}
