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Implement inline memory load/store exclusive and ordered (#1413)

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* Implement inline memory load/store exclusive

* Fix missing REX prefix on 8-bits CMPXCHG

* Increment PTC version due to bugfix

* Remove redundant memory checks

* Address PR feedback

* Increment PPTC version
This commit is contained in:
gdkchan
2020-07-30 11:29:28 -03:00
committed by GitHub
parent 57bb0abda3
commit 9878fc2d3c
19 changed files with 385 additions and 376 deletions
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15
ARMeilleure/State/NativeContext.cs
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@ -15,6 +15,9 @@ namespace ARMeilleure.State
public fixed uint FpFlags[RegisterConsts.FpFlagsCount];
public int Counter;
public ulong CallAddress;
public ulong ExclusiveAddress;
public ulong ExclusiveValueLow;
public ulong ExclusiveValueHigh;
}
private static NativeCtxStorage _dummyStorage = new NativeCtxStorage();
@ -26,6 +29,8 @@ namespace ARMeilleure.State
public NativeContext(IJitMemoryAllocator allocator)
{
_block = allocator.Allocate((ulong)Unsafe.SizeOf<NativeCtxStorage>());
GetStorage().ExclusiveAddress = ulong.MaxValue;
}
public unsafe ulong GetX(int index)
@ -162,6 +167,16 @@ namespace ARMeilleure.State
return StorageOffset(ref _dummyStorage, ref _dummyStorage.CallAddress);
}
public static int GetExclusiveAddressOffset()
{
return StorageOffset(ref _dummyStorage, ref _dummyStorage.ExclusiveAddress);
}
public static int GetExclusiveValueOffset()
{
return StorageOffset(ref _dummyStorage, ref _dummyStorage.ExclusiveValueLow);
}
private static int StorageOffset<T>(ref NativeCtxStorage storage, ref T target)
{
return (int)Unsafe.ByteOffset(ref Unsafe.As<NativeCtxStorage, T>(ref storage), ref target);