Fix edge case in transpose handling for 0xF9 #67
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Using a negative transpose can cause unsigned overflow in the addition, which will set the carry flag. ebmused was only handling that properly for large positive transpositions. Fixes an issue that Livvy and Crafty ran into but that wasn't reported or investigated until now.
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Using a negative transpose can cause unsigned overflow in the addition, which will set the carry flag. ebmused was only handling that properly for large positive transpositions.
Fixes an issue that Livvy and Crafty ran into but that wasn't reported or investigated until now.
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