mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-10-30 19:22:31 +00:00
Code Activity

Merge pull request #4818 from povik/macc_v2

Browse source 
Add `$macc_v2`
This commit is contained in:
Martin Povišer 2025-03-12 22:55:40 +01:00 • committed by GitHub
commit 6da543a61a
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
18 changed files with 381 additions and 55 deletions
Download patch file Download diff file Expand all files Collapse all files

2
docs/source/cell/word_arith.rst
View file

@ -1,7 +1,7 @@
Coarse arithmetics
------------------
.. todo:: Add information about `$alu`, `$fa`, and `$lcu` cells.
.. todo:: Add information about `$alu`, `$fa`, `$macc_v2`, and `$lcu` cells.
The `$macc` cell type represents a generalized multiply and accumulate
operation. The cell is purely combinational. It outputs the result of summing up

2
docs/source/code_examples/fifo/fifo.ys
View file

@ -67,7 +67,7 @@ show -color maroon3 @new_cells -notitle -format dot -prefix rdata_memrdv2 o:rdat
# ========================================================
alumacc
select -set new_cells t:$alu t:$macc
select -set new_cells t:$alu t:$macc_v2
show -color maroon3 @new_cells -notitle -format dot -prefix rdata_alumacc o:rdata %ci*
# ========================================================

2
docs/source/getting_started/example_synth.rst
View file

@ -523,7 +523,7 @@ That brings us to the fourth and final part for the iCE40 synthesis flow:
:name: synth_coarse4
Where before each type of arithmetic operation had its own cell, e.g. `$add`, we
now want to extract these into `$alu` and `$macc` cells which can help identify
now want to extract these into `$alu` and `$macc_v2` cells which can help identify
opportunities for reusing logic. We do this by running `alumacc`, which we can
see produce the following changes in our example design: