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| famubu[m] | Do you mean this? https://bpa.st/RYBQ | 06:17 |
|---|---|---|
| tpb | Title: View paste RYBQ (at bpa.st) | 06:17 |
| famubu[m] | Does any of those entries correspond to register count? | 06:18 |
| famubu[m] | Previous paste had a formatting problem. This one is better: https://bpa.st/IIQQ | 06:26 |
| tpb | Title: View paste IIQQ (at bpa.st) | 06:26 |
| famubu[m] | Could it be possible that yosys chose to implement registers using LUTs instead of the registers available in the FPGA? | 06:27 |
| whitequark[cis]1 | nextpnr-gowin should not be used, use nextpnr-himbaechel-gowin | 06:35 |
| whitequark[cis]1 | also yosys will never implement a register in a LUT | 06:35 |
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| Semisol[m] | <famubu[m]> "Could it be possible that..." <- I think Gowin has LUT+FF in a single slice | 06:36 |
| Semisol[m] | Look at synthesis results, not nextpnr, if you want to see low-level cells and not resources | 06:36 |
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| cr1901 | https://github.com/YosysHQ/nextpnr/blob/master/machxo2/cells.cc#L151 Should this be "ramw->hierpath = ram->hierpath;", rather than "ramw->hierpath = ramw->hierpath;"? | 14:58 |
| famubu[m] | Thanks. It is there in yosys output. I figured techmapping would be done by nextpnr since that was the command accepting fpga name. | 16:34 |
| famubu[m] | Also, why is next-himbaechel preferred over nextpnr-gowin? | 16:34 |
| famubu[m] | *nextpnr-himbaechel | 16:35 |
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| lofty | <famubu[m]> Also, why is nextpnr-himbaechel preferred over nextpnr-gowin? <--- himbaechel is a nextpnr API which uses common code backed by an efficient data store | 20:54 |
| lofty | TL;DR it's more efficient for developers and users, so the old codebase is now unmaintained | 20:55 |
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