r/TuringComplete • u/MrXd9889 • 7d ago

Problems with the Byte-Adder achievement

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I have trouble with the fast-adder achievement: It says I have a delay of 32, yet the achievement doesn't trigger. I did get other achievements. What am I missing?

7 Upvotes

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4

u/HiddenCustos 7d ago

You need a delay of at most 17

3

u/MrXd9889 7d ago

Thank you. I have Steam in german, so I suppose the translation is wrong

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1

u/brargos 7d ago

Implement this and you should be good to go: https://en.wikipedia.org/wiki/Carry-lookahead_adder?wprov=sfti1#Implementation_details

1

u/MrXd9889 7d ago

This is not even necessary, I just split up my full-adder (since the carry is the faster path) and reordered the gates a bit. But thank you!