When the Quartus II software decides the functions in an ALM?

Programmable Devices

CPLDs, FPGAs, SoC FPGAs, Configuration, and Transceivers

When the Quartus II software decides the functions in an ALM?

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In the QUIP design flow, Quartus II will first do technology mapping and then P&R.

If the technology mapping used in the Quartus II is cut-based mapping, when the software decides which one or two LUTs should form an ALM?

My guess is, there are two possible ways, one is a extra step after technology mapping and before P&R. The other one is simultaneously processed in the P&R step.

Since I didn't found any specific info of that, may anyone tell me about where to find them or share some details?

Best Regards,

Student Tien-Yu Kuo

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