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Diffstat (limited to 'Ryujinx.HLE/HOS/Kernel/MersenneTwister.cs')
-rw-r--r--Ryujinx.HLE/HOS/Kernel/MersenneTwister.cs106
1 files changed, 53 insertions, 53 deletions
diff --git a/Ryujinx.HLE/HOS/Kernel/MersenneTwister.cs b/Ryujinx.HLE/HOS/Kernel/MersenneTwister.cs
index 5307bdc9..b90d54d2 100644
--- a/Ryujinx.HLE/HOS/Kernel/MersenneTwister.cs
+++ b/Ryujinx.HLE/HOS/Kernel/MersenneTwister.cs
@@ -4,125 +4,125 @@ namespace Ryujinx.HLE.HOS.Kernel
{
class MersenneTwister
{
- private int _index;
- private uint[] _mt;
+ private int Index;
+ private uint[] Mt;
- public MersenneTwister(uint seed)
+ public MersenneTwister(uint Seed)
{
- _mt = new uint[624];
+ Mt = new uint[624];
- _mt[0] = seed;
+ Mt[0] = Seed;
- for (int mtIdx = 1; mtIdx < _mt.Length; mtIdx++)
+ for (int MtIdx = 1; MtIdx < Mt.Length; MtIdx++)
{
- uint prev = _mt[mtIdx - 1];
+ uint Prev = Mt[MtIdx - 1];
- _mt[mtIdx] = (uint)(0x6c078965 * (prev ^ (prev >> 30)) + mtIdx);
+ Mt[MtIdx] = (uint)(0x6c078965 * (Prev ^ (Prev >> 30)) + MtIdx);
}
- _index = _mt.Length;
+ Index = Mt.Length;
}
- public long GenRandomNumber(long min, long max)
+ public long GenRandomNumber(long Min, long Max)
{
- long range = max - min;
+ long Range = Max - Min;
- if (min == max)
+ if (Min == Max)
{
- return min;
+ return Min;
}
- if (range == -1)
+ if (Range == -1)
{
//Increment would cause a overflow, special case.
return GenRandomNumber(2, 2, 32, 0xffffffffu, 0xffffffffu);
}
- range++;
+ Range++;
//This is log2(Range) plus one.
- int nextRangeLog2 = 64 - BitUtils.CountLeadingZeros64(range);
+ int NextRangeLog2 = 64 - BitUtils.CountLeadingZeros64(Range);
//If Range is already power of 2, subtract one to use log2(Range) directly.
- int rangeLog2 = nextRangeLog2 - (BitUtils.IsPowerOfTwo64(range) ? 1 : 0);
+ int RangeLog2 = NextRangeLog2 - (BitUtils.IsPowerOfTwo64(Range) ? 1 : 0);
- int parts = rangeLog2 > 32 ? 2 : 1;
- int bitsPerPart = rangeLog2 / parts;
+ int Parts = RangeLog2 > 32 ? 2 : 1;
+ int BitsPerPart = RangeLog2 / Parts;
- int fullParts = parts - (rangeLog2 - parts * bitsPerPart);
+ int FullParts = Parts - (RangeLog2 - Parts * BitsPerPart);
- uint mask = 0xffffffffu >> (32 - bitsPerPart);
- uint maskPlus1 = 0xffffffffu >> (31 - bitsPerPart);
+ uint Mask = 0xffffffffu >> (32 - BitsPerPart);
+ uint MaskPlus1 = 0xffffffffu >> (31 - BitsPerPart);
- long randomNumber;
+ long RandomNumber;
do
{
- randomNumber = GenRandomNumber(parts, fullParts, bitsPerPart, mask, maskPlus1);
+ RandomNumber = GenRandomNumber(Parts, FullParts, BitsPerPart, Mask, MaskPlus1);
}
- while ((ulong)randomNumber >= (ulong)range);
+ while ((ulong)RandomNumber >= (ulong)Range);
- return min + randomNumber;
+ return Min + RandomNumber;
}
private long GenRandomNumber(
- int parts,
- int fullParts,
- int bitsPerPart,
- uint mask,
- uint maskPlus1)
+ int Parts,
+ int FullParts,
+ int BitsPerPart,
+ uint Mask,
+ uint MaskPlus1)
{
- long randomNumber = 0;
+ long RandomNumber = 0;
- int part = 0;
+ int Part = 0;
- for (; part < fullParts; part++)
+ for (; Part < FullParts; Part++)
{
- randomNumber <<= bitsPerPart;
- randomNumber |= GenRandomNumber() & mask;
+ RandomNumber <<= BitsPerPart;
+ RandomNumber |= GenRandomNumber() & Mask;
}
- for (; part < parts; part++)
+ for (; Part < Parts; Part++)
{
- randomNumber <<= bitsPerPart + 1;
- randomNumber |= GenRandomNumber() & maskPlus1;
+ RandomNumber <<= BitsPerPart + 1;
+ RandomNumber |= GenRandomNumber() & MaskPlus1;
}
- return randomNumber;
+ return RandomNumber;
}
private uint GenRandomNumber()
{
- if (_index >= _mt.Length)
+ if (Index >= Mt.Length)
{
Twist();
}
- uint value = _mt[_index++];
+ uint Value = Mt[Index++];
- value ^= value >> 11;
- value ^= (value << 7) & 0x9d2c5680;
- value ^= (value << 15) & 0xefc60000;
- value ^= value >> 18;
+ Value ^= Value >> 11;
+ Value ^= (Value << 7) & 0x9d2c5680;
+ Value ^= (Value << 15) & 0xefc60000;
+ Value ^= Value >> 18;
- return value;
+ return Value;
}
private void Twist()
{
- for (int mtIdx = 0; mtIdx < _mt.Length; mtIdx++)
+ for (int MtIdx = 0; MtIdx < Mt.Length; MtIdx++)
{
- uint value = (_mt[mtIdx] & 0x80000000) + (_mt[(mtIdx + 1) % _mt.Length] & 0x7fffffff);
+ uint Value = (Mt[MtIdx] & 0x80000000) + (Mt[(MtIdx + 1) % Mt.Length] & 0x7fffffff);
- _mt[mtIdx] = _mt[(mtIdx + 397) % _mt.Length] ^ (value >> 1);
+ Mt[MtIdx] = Mt[(MtIdx + 397) % Mt.Length] ^ (Value >> 1);
- if ((value & 1) != 0)
+ if ((Value & 1) != 0)
{
- _mt[mtIdx] ^= 0x9908b0df;
+ Mt[MtIdx] ^= 0x9908b0df;
}
}
- _index = 0;
+ Index = 0;
}
}
}