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Fixed undefined behavior in ROR/ROL

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SChernykh 2019-02-08 23:36:25 +01:00 committed by wowario
parent 3b97d399b1
commit 4cec4db7f0
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GPG Key ID: 24DCBE762DE9C111
1 changed files with 2 additions and 2 deletions
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4
src/crypto/variant4_random_math.h
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@ -106,13 +106,13 @@ static FORCEINLINE void v4_random_math(const struct V4_Instruction* code, v4_reg
case ROR: \
{ \
const uint32_t shift = src % REG_BITS; \
*dst = (*dst >> shift) | (*dst << (REG_BITS - shift)); \
*dst = (*dst >> shift) | (*dst << ((REG_BITS - shift) % REG_BITS)); \
} \
break; \
case ROL: \
{ \
const uint32_t shift = src % REG_BITS; \
*dst = (*dst << shift) | (*dst >> (REG_BITS - shift)); \
*dst = (*dst << shift) | (*dst >> ((REG_BITS - shift) % REG_BITS)); \
} \
break; \
case XOR: \