X86: Fix the carry flag for shr.
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1 changed files with 4 additions and 1 deletions
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@ -680,8 +680,11 @@ let {{
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//worry about setting them.
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ccFlagBits = ccFlagBits & ~(ext & (CFBit | ECFBit | OFBit));
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//If some combination of the CF bits need to be set, set them.
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if ((ext & (CFBit | ECFBit)) && bits(SrcReg1, shiftAmt - 1))
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if ((ext & (CFBit | ECFBit)) &&
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shiftAmt <= dataSize * 8 &&
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bits(SrcReg1, shiftAmt - 1)) {
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ccFlagBits = ccFlagBits | (ext & (CFBit | ECFBit));
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}
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//Figure out what the OF bit should be.
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if ((ext & OFBit) && bits(SrcReg1, dataSize * 8 - 1))
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ccFlagBits = ccFlagBits | OFBit;
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