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372 Commits

Author SHA1 Message Date
Emil J. Tywoniak 4bf3677640 techmap: set Han-Carlson adder priority consistent with Kogge-Stone 2024-11-28 23:54:00 +01:00
Emil J. Tywoniak 6c78bd3637 techmap: add a Han-Carlson option for `$lcu` mapping 2024-11-28 15:33:21 +01:00
Krystine Sherwin 27b8b4e81e
Docs: Fix missing groups 
$lut and $sop were missed in the rebase, and $buf is new to main since the last rebase.
 2024-10-15 11:08:30 +13:00
Krystine Sherwin 1513366f21
Docs: Adding mux cell descriptions 
Also making ver2 cell descriptions consistently spaced.
 2024-10-15 07:37:34 +13:00
Krystine Sherwin dfe803b5c6
Docs: Comments from @jix 
- Unswap shift/shiftx
- Add brief overview to cell lib
- Clarify $div cell B input
- Clarify unary operators
- What is $modfloor
 2024-10-15 07:37:20 +13:00
Krystine Sherwin 4d84d7e69f
simlib.v: Add x-output tag 
Also a few extra cell help texts.
 2024-10-15 07:35:41 +13:00
Krystine Sherwin ed92374263
simlib.v: Update case equality operators to v2 
Also tag as x-aware cells and add titles.
 2024-10-15 07:35:41 +13:00
Krystine Sherwin b1025dbaa6
cellhelp.py: Cells can have tags 
Tags are added to the list of properties when exporting to `cells.json`.
 2024-10-15 07:35:41 +13:00
Krystine Sherwin f70a66f5b3
Docs: Assert cell has group 
Explicitly assign $_TBUF_ to `gate_other` and remove catch if a cell has no group.
 2024-10-15 07:35:40 +13:00
Krystine Sherwin 5c4f7b4deb
Docs: $eqx aka case equality 2024-10-15 07:35:40 +13:00
Krystine Sherwin 596d914ead
simcells: Apply group tags 2024-10-15 07:35:40 +13:00
Krystine Sherwin 78b9dbd4ea
Docs: Assign remaining word cells to groups 
Move todos to correct place.
Add todo for x-prop cells.
 2024-10-15 07:35:40 +13:00
Krystine Sherwin 1374fc2e2b
cellref: Deprecate cell_library.rst 
Most of the word/coarse level cells have an assigned group and individual page.
The gate/fine level cells are all on one page.
Fix links to `cell_library.rst`.
 2024-10-15 07:34:52 +13:00
Krystine Sherwin 04b0ae540d
cellref: Move default help message to register.cc 
Drop the default help message from rst while still displaying it on the command line.
Fix command line formatting for older style help messages.
 2024-10-15 07:31:47 +13:00
Krystine Sherwin c662529316
Docs: Move binary operators to cell appendix 
Add binary group tag to relevant cells.
Remove content from `cell_library.rst` that is already moved.
 2024-10-15 07:31:47 +13:00
Krystine Sherwin 7c5b10fe50
cellref: Add json dump 
New `help -dump-cells-json <file>` to dump cells list.
Add 'group' field to SimHelper class/struct with defaults to gate_other and word_other depending on source (simcells or simlib).
Add 'unary' group to unary operator cells for testing (based on internal cell library docs page).
 2024-10-15 07:25:27 +13:00
Krystine Sherwin 06e5e18371
simlib.v: Autolink referenced cells in alu 2024-10-15 07:23:45 +13:00
Krystine Sherwin 21747c468c
Docs: Improve cell_help usage 
- Drop `cell_code` and instead map code lookups to the `cell_help` dict.
- Add helper functions to struct for checking and getting the right cell.
- Add `CellType` for cell to `write_cell_rst` function declaration in
  preparation for use in future.
- Iterate over `yosys_celltypes.cell_types` when exporting cell rst files,
  reporting errors for any cells defined in `cell_types` but not
  `cell_help_messages`.
 2024-10-15 07:23:45 +13:00
Krystine Sherwin 57cd8d29db
cellhelp: Add default format parse for simcells 
Since `simcells.v` uses consistent formatting we can handle it specifically to help tidy up sphinx warnings about the truth tables, and instead chuck them in a code block which when printing to rst.
Also has the side effect that rst code blocks can be added manually with `//- ::` followed by a blank line.
 2024-10-15 07:16:40 +13:00
Krystine Sherwin a2b2904ed8
cellhelp: Add source line to help 
Include Source file and line number in SimHelper struct, and use it for verilog code caption in rst dump.
Also reformat python string conversion to iterate over a list of fields instead of repeating code for each.
 2024-10-15 07:16:40 +13:00
Krystine Sherwin 784292626e
cellhelp: Rename short_desc to title 2024-10-15 07:16:39 +13:00
Krystine Sherwin 4662476ec8
Docs: Test $alu with v2 help format 2024-10-15 07:16:39 +13:00
Krystine Sherwin 600149a824
Docs: Add back message for empty help 2024-10-15 07:16:39 +13:00
Krystine Sherwin 6bbe763845
Docs: Put cell library help strings into a struct 
Allows for more expressive code when constructing help messages for cells.
Will also move extra logic in parsing help strings into the initial python parse instead of doing it in the C++ at export time.
 2024-10-15 07:16:39 +13:00
Martin Povišer 9018d06a33 quicklogic: Avoid carry chains in division mapping 
The default mapping rules for division-like operations (div/divfloor/
mod/modfloor) invoke subtractions which can get mapped to carry chains
in FPGA flows. Optimizations across carry chains are weak, so in
practice this ends up too costly compared to implementing the division
purely in soft logic.

For this reason arrange for `techmap.v` ignoring division operations
under `-D NODIV`, and use this mode in `synth_quicklogic` to avoid carry
chains for divisions.
 2024-09-19 12:18:47 +02:00
Martin Povišer eeffca9470 simlib: Add `$buf` disclaimer 2024-09-17 10:46:20 +02:00
Claire Xenia Wolf 4d469f461b Add coarse-grain $buf buffer cell type 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2024-09-17 10:46:20 +02:00
NachtSpyder04 aa60255e0e update help messages that went beyond line length limit 2024-08-18 20:27:35 +05:30
Saish Karole 34aabd56cc
Apply suggestions from code review 
Co-authored-by: Martin Povišer <povik@cutebit.org>
 2024-08-18 20:12:53 +05:30
Saish Karole d80d4dc51c
[Docs]:Add new cell type help messages (#1) 
* add shift operators description

* update shift operations' descriptions, add desciptions for add, sub, logic_*, tribuf, mux, demux, concat, pow and comparison operators
 2024-08-17 15:47:00 +05:30
Martin Povišer dc746080f5
Merge pull request #4298 from povik/kogge-stone 
techmap: Add a Kogge-Stone option for `$lcu` mapping
 2024-04-08 16:46:06 +02:00
Martin Povišer 5f4d13ee3f techmap: Note down iteration in Kogge-Stone 2024-04-08 16:45:40 +02:00
Emil J. Tywoniak 9510293a94 fixup 2024-04-04 18:16:58 +02:00
Emil J. Tywoniak a580a7c82c docs: Document $macc 2024-04-03 20:37:54 +02:00
Martin Povišer bc087f91ed techmap: Fix using overwritten results in Kogge-Stone 2024-03-27 18:32:25 +01:00
Martin Povišer 4570d064e5 techmap: Split out Kogge-Stone into a separate file 2024-03-27 11:07:24 +01:00
Martin Povišer c38201e15d techmap: Add a Kogge-Stone option for `$lcu` mapping 2024-03-25 14:56:17 +01:00
Martin Povišer 570a8f12b5
synth: Fix out-of-sync help message 
Co-authored-by: N. Engelhardt <nakengelhardt@gmail.com>
 2024-03-06 14:55:43 +01:00
Martin Povišer d2a7ce04ea synth: Rename `-inject` to `-extra-map` 2024-03-01 10:54:51 +01:00
Martin Povišer ba07cba6ce synth: Introduce `-inject` for amending techmap 2024-02-22 17:38:48 +01:00
Martin Povišer d77b792156 synth: Put in missing bounds check for `-lut` 2024-02-22 17:24:26 +01:00
Miodrag Milanović edb95c69a9
Merge pull request #4084 from jix/scopeinfo 
$scopeinfo support
 2024-02-12 09:51:22 +01:00
Martin Povišer 7a3316dd78 synth: Tweak phrasing of `-booth` help 2024-02-08 00:05:15 +01:00
Martin Povišer a98d363d9d synth: Run script in full in help mode 2024-02-08 00:05:15 +01:00
Jannis Harder f728927307 Add builtin celltype $scopeinfo 
Only declares the cell interface, doesn't make anything use or
understand $scopeinfo yet.
 2024-02-06 17:51:24 +01:00
Catherine c7bf0e3b8f Add new `$check` cell to represent assertions with a message. 2024-02-01 20:10:39 +01:00
Martin Povišer f7d4a855c6 techlibs: Add `cmp2softlogic.v` to common 2023-11-13 10:42:12 +01:00
Martin Povišer 54be4aca90
Merge pull request #3924 from andyfox-rushc/master 
multpass -- create Booth Encoded multipliers for
 2023-09-18 16:46:59 +02:00
Jannis Harder 78ff40d1b2 Run `future` as part of `prep` 2023-09-13 11:32:36 +02:00
Miodrag Milanovic 27ac912709 Support import of $future_ff 2023-09-13 11:32:36 +02:00