public int sceKernelUtilsMt19937Init(out SceKernelUtilsMt19937Context Context, uint Seed)
{
fixed(uint *State = Context.State)
{
State[0] = Seed;
for (int n = 1; n < SceKernelUtilsMt19937Context.MT_N; n++)
{
State[n] = (uint)(1812433253 * (State[n - 1] ^ (State[n - 1] >> 30)) + n);
}
Context.Count = 0;
for (int n = 0; n < SceKernelUtilsMt19937Context.MT_N; n++)
{
sceKernelUtilsMt19937UInt(ref Context);
}
return(0);
}
}
public uint sceKernelUtilsMt19937UInt(ref SceKernelUtilsMt19937Context Context)
{
fixed(uint *State = Context.State)
{
uint *CurrentPointer;
uint Current, Next;
uint v0;
bool currentPosIsLess =
Context.Count < SceKernelUtilsMt19937Context.MT_N - SceKernelUtilsMt19937Context.MT_M;
CurrentPointer = &State[Context.Count];
// Current Value
Current = *CurrentPointer;
// Next Value
Context.Count = (Context.Count + 1) % SceKernelUtilsMt19937Context.MT_N;
Next = State[Context.Count];
v0 = Current ^ (Current >> 11);
v0 ^= (v0 << 7) & 0x9D2C5680;
v0 ^= (v0 << 15) & 0xEFC60000;
var Mix = ((Current & 0x80000000) | (Next & 0x7FFFFFFF)) >> 1;
if ((Next & 1) != 0)
{
Current ^= 0x9908B0DF;
}
Mix ^= *(
currentPosIsLess
? &CurrentPointer[+SceKernelUtilsMt19937Context.MT_M]
: &CurrentPointer[-(SceKernelUtilsMt19937Context.MT_N - SceKernelUtilsMt19937Context.MT_M)]
);
*CurrentPointer = Mix;
return(v0 ^ (v0 >> 18));
}
}
public uint sceKernelUtilsMt19937UInt(ref SceKernelUtilsMt19937Context Context)
{
fixed (uint* State = Context.State)
{
uint* CurrentPointer;
uint Current, Next;
uint v0;
bool currentPosIsLess = Context.Count < (SceKernelUtilsMt19937Context.MT_N - SceKernelUtilsMt19937Context.MT_M);
CurrentPointer = &State[Context.Count];
// Current Value
Current = *CurrentPointer;
// Next Value
Context.Count = (Context.Count + 1) % SceKernelUtilsMt19937Context.MT_N;
Next = State[Context.Count];
v0 = Current ^ (Current >> 11);
v0 ^= ((v0 << 7) & 0x9D2C5680);
v0 ^= ((v0 << 15) & 0xEFC60000);
var Mix = ((Current & 0x80000000) | (Next & 0x7FFFFFFF)) >> 1;
if ((Next & 1) != 0) Current ^= 0x9908B0DF;
Mix ^= *(
currentPosIsLess
? &CurrentPointer[+SceKernelUtilsMt19937Context.MT_M]
: &CurrentPointer[-(SceKernelUtilsMt19937Context.MT_N - SceKernelUtilsMt19937Context.MT_M)]
);
*CurrentPointer = Mix;
return v0 ^ (v0 >> 18);
}
}
public int sceKernelUtilsMt19937Init(out SceKernelUtilsMt19937Context Context, uint Seed)
{
fixed (uint* State = Context.State)
{
State[0] = Seed;
for (int n = 1; n < SceKernelUtilsMt19937Context.MT_N; n++)
{
State[n] = (uint)(1812433253 * (State[n - 1] ^ (State[n - 1] >> 30)) + n);
}
Context.Count = 0;
for (int n = 0; n < SceKernelUtilsMt19937Context.MT_N; n++)
{
sceKernelUtilsMt19937UInt(ref Context);
}
return 0;
}
}
public uint sceKernelUtilsMt19937UInt(SceKernelUtilsMt19937Context* Context)
{
var Random = Randoms[(uint)Context];
return (uint)Random.Next();
}
public int sceKernelUtilsMt19937Init(SceKernelUtilsMt19937Context* Context, uint Seed)
{
Randoms.Add((uint)Context, new Random((int)Seed));
return 0;
}
