00579927e4
* Initial implementation of KProcess * Some improvements to the memory manager, implement back guest stack trace printing * Better GetInfo implementation, improve checking in some places with information from process capabilities * Allow the cpu to read/write from the correct memory locations for accesses crossing a page boundary * Change long -> ulong for address/size on memory related methods to avoid unnecessary casts * Attempt at implementing ldr:ro with new KProcess * Allow BSS with size 0 on ldr:ro * Add checking for memory block slab heap usage, return errors if full, exit gracefully * Use KMemoryBlockSize const from KMemoryManager * Allow all methods to read from non-contiguous locations * Fix for TransactParcelAuto * Address PR feedback, additionally fix some small issues related to the KIP loader and implement SVCs GetProcessId, GetProcessList, GetSystemInfo, CreatePort and ManageNamedPort * Fix wrong check for source pages count from page list on MapPhysicalMemory * Fix some issues with UnloadNro on ldr:ro
104 lines
No EOL
3 KiB
C#
104 lines
No EOL
3 KiB
C#
namespace Ryujinx.Common
|
|
{
|
|
public static class BitUtils
|
|
{
|
|
public static int AlignUp(int Value, int Size)
|
|
{
|
|
return (Value + (Size - 1)) & -Size;
|
|
}
|
|
|
|
public static ulong AlignUp(ulong Value, int Size)
|
|
{
|
|
return (ulong)AlignUp((long)Value, Size);
|
|
}
|
|
|
|
public static long AlignUp(long Value, int Size)
|
|
{
|
|
return (Value + (Size - 1)) & -(long)Size;
|
|
}
|
|
|
|
public static int AlignDown(int Value, int Size)
|
|
{
|
|
return Value & -Size;
|
|
}
|
|
|
|
public static ulong AlignDown(ulong Value, int Size)
|
|
{
|
|
return (ulong)AlignDown((long)Value, Size);
|
|
}
|
|
|
|
public static long AlignDown(long Value, int Size)
|
|
{
|
|
return Value & -(long)Size;
|
|
}
|
|
|
|
public static ulong DivRoundUp(ulong Value, uint Dividend)
|
|
{
|
|
return (Value + Dividend - 1) / Dividend;
|
|
}
|
|
|
|
public static long DivRoundUp(long Value, int Dividend)
|
|
{
|
|
return (Value + Dividend - 1) / Dividend;
|
|
}
|
|
|
|
public static bool IsPowerOfTwo32(int Value)
|
|
{
|
|
return Value != 0 && (Value & (Value - 1)) == 0;
|
|
}
|
|
|
|
public static bool IsPowerOfTwo64(long Value)
|
|
{
|
|
return Value != 0 && (Value & (Value - 1)) == 0;
|
|
}
|
|
|
|
public static int CountLeadingZeros32(int Value)
|
|
{
|
|
return (int)CountLeadingZeros((ulong)Value, 32);
|
|
}
|
|
|
|
public static int CountLeadingZeros64(long Value)
|
|
{
|
|
return (int)CountLeadingZeros((ulong)Value, 64);
|
|
}
|
|
|
|
private static readonly byte[] ClzNibbleTbl = { 4, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
|
|
private static ulong CountLeadingZeros(ulong Value, int Size) // Size is 8, 16, 32 or 64 (SIMD&FP or Base Inst.).
|
|
{
|
|
if (Value == 0ul)
|
|
{
|
|
return (ulong)Size;
|
|
}
|
|
|
|
int NibbleIdx = Size;
|
|
int PreCount, Count = 0;
|
|
|
|
do
|
|
{
|
|
NibbleIdx -= 4;
|
|
PreCount = ClzNibbleTbl[(Value >> NibbleIdx) & 0b1111];
|
|
Count += PreCount;
|
|
}
|
|
while (PreCount == 4);
|
|
|
|
return (ulong)Count;
|
|
}
|
|
|
|
public static long ReverseBits64(long Value)
|
|
{
|
|
return (long)ReverseBits64((ulong)Value);
|
|
}
|
|
|
|
private static ulong ReverseBits64(ulong Value)
|
|
{
|
|
Value = ((Value & 0xaaaaaaaaaaaaaaaa) >> 1 ) | ((Value & 0x5555555555555555) << 1 );
|
|
Value = ((Value & 0xcccccccccccccccc) >> 2 ) | ((Value & 0x3333333333333333) << 2 );
|
|
Value = ((Value & 0xf0f0f0f0f0f0f0f0) >> 4 ) | ((Value & 0x0f0f0f0f0f0f0f0f) << 4 );
|
|
Value = ((Value & 0xff00ff00ff00ff00) >> 8 ) | ((Value & 0x00ff00ff00ff00ff) << 8 );
|
|
Value = ((Value & 0xffff0000ffff0000) >> 16) | ((Value & 0x0000ffff0000ffff) << 16);
|
|
|
|
return (Value >> 32) | (Value << 32);
|
|
}
|
|
}
|
|
} |