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by thecompilr
1304 days ago
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Obviously compared to any other ALU operation, except the most basic binary ops. It is just a parity of 8 bits, so even in a straightforward implementation you only have three levels of XOR, it is not completely serial, you do get to parallelize some. I do agree that it is not free on an 8080, but it is still a lot cheaper than add or sub. |
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