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[RTL] Fix random functions

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This commit is contained in:
Timo Kreuzer
2025-07-29 17:38:26 +03:00
parent 5c1c28109f
commit b8abfb1392
1 changed files with 4 additions and 4 deletions
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8
sdk/lib/rtl/random.c
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@@ -118,8 +118,8 @@ RtlRandom (IN OUT PULONG Seed)
PAGED_CODE_RTL();
Rand = (*Seed * LCG_A + LCG_C) % LCG_M;
*Seed = (Rand * LCG_A + LCG_C) % LCG_M;
Rand = ((ULONG64)*Seed * LCG_A + LCG_C) % LCG_M;
*Seed = ((ULONG64)Rand * LCG_A + LCG_C) % LCG_M;
Pos = *Seed & (sizeof(RtlpRandomConstantVector) / sizeof(RtlpRandomConstantVector[0]) - 1);
Result = RtlpRandomConstantVector[Pos];
RtlpRandomConstantVector[Pos] = Rand;
@@ -157,7 +157,7 @@ RtlRandomEx( IN OUT PULONG Seed
Pos = RtlpRandomExAuxVarY & (sizeof(RtlpRandomExConstantVector) / sizeof(RtlpRandomExConstantVector[0]) - 1);
RtlpRandomExAuxVarY = RtlpRandomExConstantVector[Pos];
Rand = (*Seed * LCG_A + LCG_C) % LCG_M;
Rand = ((ULONG64)*Seed * LCG_A + LCG_C) % LCG_M;
RtlpRandomExConstantVector[Pos] = Rand;
*Seed = Rand;
@@ -197,7 +197,7 @@ RtlUniform(IN PULONG Seed)
ULONG Result;
/* Generate the random number */
Result = (*Seed * LCG_A + LCG_C) % LCG_M;
Result = ((ULONG64)*Seed * LCG_A + LCG_C) % LCG_M;
/* Return it */
*Seed = Result;