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| daveshah | mithro: what design? | 06:03 |
|---|---|---|
| mithro | daveshah: checker | 06:47 |
| daveshah | mithro: OK, not one I've played with before | 06:48 |
| daveshah | Did you work out why the last example wasn't working? | 06:48 |
| mithro | https://github.com/mithro/symbiflow-arch-defs/tree/4mcmaster/tests/ice40/checker | 06:49 |
| tpb | Title: symbiflow-arch-defs/tests/ice40/checker at 4mcmaster · mithro/symbiflow-arch-defs · GitHub (at github.com) | 06:49 |
| mithro | daveshah: no, I got distracted | 06:50 |
| daveshah | I might poke it today | 06:50 |
| mithro | Anyway, bed time you for me | 06:52 |
| mithro | Should all be pushed | 06:52 |
| mithro | daveshah: morning | 16:24 |
| daveshah | morning | 16:24 |
| mithro | daveshah: did you get a chance to look at things at all? | 16:24 |
| daveshah | yes, I reproduced your results | 16:24 |
| daveshah | I also tested simulation with Yosys' built in sim command (cba to write a testbench) and saw the same thing | 16:25 |
| daveshah | I think one of the LUTs is screwed | 16:25 |
| daveshah | whichever one is in the path driving the MSB of the counter | 16:25 |
| mithro | daveshah: I think we probably want a bunch more lut tests | 16:27 |
| daveshah | mithro: definitely | 16:27 |
| mithro | I'm guessing that the issue is with the lut rotation or lut route through | 16:28 |
| daveshah | almost certainly | 16:28 |
| mithro | Could be an issue with jhol's LUT import code or HLC :-P | 16:29 |
| daveshah | HLC->ASC side is fairly unlikely, I'd say it's more likely the HLC writer | 16:29 |
| mithro | daveshah: would be good to have a generator or something | 16:33 |
| mithro | Given how little the HLC code is used, I'm a little suspect of it | 16:34 |
| daveshah | s/little/never :P | 16:34 |
| daveshah | everything we do works on ASC files directly | 16:34 |
| mithro | Yeah | 16:35 |
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| mithro | Afternoon | 19:19 |
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| mithro | daveshah: So you going to have any time to look at some of this stuff? IE how should we coordinate? | 22:19 |
| daveshah | mithro: No, no time allocated I'm afraid | 22:20 |
| daveshah | Lots of other things to work on right now | 22:20 |
| mithro | kem_: Did you manage to come up with any tricks around the modelling of mutually exclusive fan out? | 22:22 |
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