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| Adrien[m] | Hi all, this is a question related to prjxray's tool fasm2frames... (full message at <https://catircservices.org/_irc/v1/media/download/AcAVv0VfHGbFfIONkdjJbkelz3UZs4YYPYXzBFnI7DWOKTSjSOWAsN4cSJfC3WEcrCwfM8Igvz2cX5k1rqC759pCeSDtL7FQAGNhdGlyY3NlcnZpY2VzLm9yZy9VeGJKRmxOcHBraFZyckNNbFd3T2lrRGo>) | 08:46 |
|---|---|---|
| Adrien[m] | Anyone has an idea what could be the root cause ?? | 08:47 |
| Adrien[m] | Tried reinstalling python and all libs and regenerating the packages etc, everything should be on sync about that (Archlinux system)... to not avail | 08:47 |
| juri_ | Adrien[m]: your message was way too long, and did not make it to IRC. | 08:49 |
| Adrien[m] | ah, sorry. I'll resubmit with shorter lines. | 08:51 |
| Adrien[m] | So, I have a question related to prjxray's tool fasm2frames | 08:51 |
| Adrien[m] | The optimized fasm parser is based on some antlr4 lib that has python bindings. I would like to use it. But it fails : | 08:51 |
| Adrien[m] | /usr/lib/python3.12/site-packages/fasm/parser/__init__.py:30: RuntimeWarning: Unable to import fast Antlr4 parser implementation. | 08:52 |
| Adrien[m] | ImportError: cannot import name tags | 08:52 |
| Adrien[m] | Falling back to the much slower pure Python textX based parser implementation. | 08:52 |
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| whitequark[cis] | juri_: (didn't you get a link to the full message? or do you just not want to click it) | 08:52 |
| whitequark[cis] | (I'm the provider of the bridge so if it's broken I'd like to understand how) | 08:52 |
| juri_ | whitequark[cis]: I did, and i did not want to click away. | 08:53 |
| whitequark[cis] | gotcha | 08:53 |
| Adrien[m] | (btw thank you Catherine for your archive of irc logs, super useful :-) ) | 08:55 |
| whitequark[cis] | you're welcome! | 08:55 |
| Adrien[m] | Is there a bridge for #f4pga too ? | 08:57 |
| whitequark[cis] | no, but if the ops want me to set one up i can do that | 08:57 |
| Adrien[m] | So I've a submission deadline this WE for a paper where I make of the tools Yosys-nextpnr-prjxray | 09:03 |
| Adrien[m] | This fasm parser issue makes the tool killed because out of memory, hence importance of the optimized parser | 09:03 |
| Adrien[m] | I'll take any remotely useful suggestion to try to make this python tool fasm2frames condescend to load the underlying antlr4 lib ! | 09:05 |
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| Adrien[m] | I can't find where tags is supposed to come from | 12:58 |
| Adrien[m] | Need to setup swap space on disk to run the supposedly signoff tool fasm2frames... | 12:58 |
| Adrien[m] | How ridiculous :D | 12:59 |
| gatecat | yeah, prjxray is a bit of a mess, to say the least | 13:04 |
| gatecat | I don't know quite how they managed to make fasm parsing the least efficient step of the process | 13:04 |
| gatecat | i don't know how much any of this is being actively worked on anymore, either, unfortunately | 13:05 |
| gatecat | maybe there's a better trick to generating bitstreams that I never figured out, idk | 13:05 |
| Adrien[m] | and this looks soooOoOooo promising | 13:05 |
| Adrien[m] | https://github.com/chipsalliance/fasm/issues/92 | 13:05 |
| Adrien[m] | Replace slow implementation with single-header, plain c++ version | 13:05 |
| Adrien[m] | To completely remove the dependency fasm in fasm2frames | 13:07 |
| Adrien[m] | I can pay to see it happen | 13:07 |
| Adrien[m] | With homemade blackberry jam (or else to taste) | 13:08 |
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| juri_ | Adrien[m]: did that get you working? | 17:32 |
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| tnt | Is there a list of the cells like \$_DLATCH_P_ that you can map ? Trying to write a tech map for the iHP PDK cells ... | 19:03 |
| tnt | Yosys (or abc, whoever does the map) never maps to cells with multiple output right ? So cells with Q & QN outputs are useless ? | 19:08 |
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