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Use compliment for negative smulh result.

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riperiperi 2018-06-07 23:55:47 +01:00
parent 560001e02b
commit 7878aa8e35
1 changed files with 1 additions and 1 deletions
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2
ChocolArm64/Instruction/ASoftFallback.cs
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@ -159,7 +159,7 @@ namespace ChocolArm64.Instruction
long Result = (long)UMulHi128((ulong)(LSign ? -LHS : LHS), (ulong)(RSign ? -RHS : RHS));
if (LSign != RSign && LHS != 0 && RHS != 0)
return (-Result) - 1; //for negative results, hi 64-bits start at 0xFFF... and count back
return ~Result; //for negative results, hi 64-bits start at 0xFFF... and count back
return Result;
}