This commit is contained in:
2025-08-26 18:08:35 +02:00
parent 3f172debe0
commit 3c1323f0ef
2 changed files with 31 additions and 2 deletions

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@@ -2,7 +2,36 @@
low-memory-usage BLIF (berkeley logic interchange format) parser.
supports:
| | this | SIS | yosys | abc | [pip blifparser] | [lorina] | [crates.io blif-parser] |
| ------------------------------------------- | ---- | --- | ----- | --- | ---------------- | -------- | ----------------------- |
| top module, latches, LUTs | x | x | x | x | x | x | x |
| different latch types | x | x | x | x | - | x | x |
| usage of library gates | x | x | x | x | - | - | x |
| empty lines, padding, and comments | x | x | ? | ? | - | x | x |
| quirk 1: allow omit `.end` and `.module` | x | x | ? | ? | ? | ? | ? |
| quirk 2: `\` to continue on next line | x | x | x | ? | - | - | x |
| multiple models per file & sub-circuits | x | x | x | ? | - | - | x |
| model attr: `.clock` | x | x | x | ? | - | - | - |
| sub-file references | x | x | ? | ? | x | - | - |
| finite state machines (`.start_kiss`) | x | x | - | - | x | - | - |
| clock constraints (mostly for simulation) | WIP | x | - | ? | - | - |
| delay constraints | WIP | x | - | ? | - | - |
| full BLIF specification [^1] | x | x | - | - | - | - |
| ------------------------------------------- | ---- | --- | ----- | --- | ---------------- | -------- |
| abc extension: "Black- & White-boxes" [^2] | WIP | - | - | x | - | - |
| extension: `.blackbox` | WIP | - | x | ? | - | - |
| yosys extension: `.cname`: cell name attr | x | - | x | ? | - | - |
| yosys extension: `.attr` and `.param` | x | - | x | ? | - | - |
| extension: `.barbuff` / `.conn` | x | - | x | ? | - | - |
[^1]: https://people.eecs.berkeley.edu/~alanmi/publications/other/blif.pdf
[^2]: https://people.eecs.berkeley.edu/~alanmi/publications/other/boxes01.pdf
[pip blifparser]: https://github.com/mario33881/blifparser
[lorina]: https://github.com/hriener/lorina
[crates.io blif-parser]: https://github.com/ucb-bar/blif-parser/
- the latest BLIF specification (dated July 28, 1992)
- all yosys BLIF extensions
(supports reading of BLIF files generated with `write_blif -iname -iattr -param -cname -blackbox -attr -conn`)

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@@ -833,7 +833,7 @@ fn parse_mod(
});
}
".conn" => {
".barbuff" | ".conn" => {
let from = args.next().ok_or(BlifParserError::MissingArgs)?.into();
let to = args.next().ok_or(BlifParserError::MissingArgs)?.into();