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Removed parts of the MMU functionality to use memory directly (faster, but potentially more dangerous, WIP), also changed the Shl/Sshr immediate instructions to use IL instead of calling the method

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This commit is contained in:
gdkchan 2018-02-07 13:44:48 -03:00
parent d77d691381
commit 18ac1c4045
10 changed files with 89 additions and 188 deletions
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38
Ryujinx/Cpu/Memory/AMemoryMgr.cs
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@ -6,8 +6,8 @@ namespace ChocolArm64.Memory
{
public class AMemoryMgr
{
public const long AddrSize = 1L << 36;
public const long RamSize = 2L * 1024 * 1024 * 1024;
public const long AddrSize = RamSize;
public const long RamSize = 4L * 1024 * 1024 * 1024;
private const int PTLvl0Bits = 11;
private const int PTLvl1Bits = 13;
@ -117,7 +117,7 @@ namespace ChocolArm64.Memory
while ((ulong)Size < (ulong)HeapSize)
{
Allocator.Free(GetPhys(Position, AMemoryPerm.None));
Allocator.Free(Position);
Position += PageSize;
}
@ -254,38 +254,6 @@ namespace ChocolArm64.Memory
return new AMemoryMapInfo(Start, Size, BaseEntry.Type, BaseEntry.Perm);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public long GetPhys(long Position, AMemoryPerm Perm)
{
if (!HasPTEntry(Position))
{
if (Position < 0x08000000)
{
Console.WriteLine($"HACK: Ignoring bad access at {Position:x16}");
return 0;
}
throw new VmmPageFaultException(Position);
}
PTEntry Entry = GetPTEntry(Position);
long AbsPos = Entry.Position + (Position & PageMask);
if (Entry.Map == PTMap.Mirror)
{
return GetPhys(AbsPos, Perm);
}
if (Entry.Map == PTMap.Unmapped)
{
throw new VmmPageFaultException(Position);
}
return AbsPos;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private bool HasPTEntry(long Position)
{