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| author | Jim Lawson <ucbjrl@berkeley.edu> | 2019-08-07 10:14:45 -0700 |
|---|---|---|
| committer | Jim Lawson <ucbjrl@berkeley.edu> | 2019-08-07 10:14:45 -0700 |
| commit | 5e8a98c8fd5f31b514748676804dd1237bce4225 (patch) | |
| tree | ead2b0029b55e078abc1023c434b87b4684ba498 /techlibs/common/simcells.v | |
| parent | 7e298084e458c3fcccece565df305271db51aec8 (diff) | |
| parent | 5545cd3c108ef240ccf6278b2734412acf81cd2a (diff) | |
| download | yosys-5e8a98c8fd5f31b514748676804dd1237bce4225.tar.gz yosys-5e8a98c8fd5f31b514748676804dd1237bce4225.tar.bz2 yosys-5e8a98c8fd5f31b514748676804dd1237bce4225.zip | |
Merge branch 'master' into firrtl_err_on_unsupported_cell
# Conflicts:
# backends/firrtl/firrtl.cc
Diffstat (limited to 'techlibs/common/simcells.v')
| -rw-r--r-- | techlibs/common/simcells.v | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/techlibs/common/simcells.v b/techlibs/common/simcells.v index 289673e82..64720e598 100644 --- a/techlibs/common/simcells.v +++ b/techlibs/common/simcells.v @@ -230,6 +230,25 @@ endmodule // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| //- +//- $_NMUX_ (A, B, S, Y) +//- +//- A 2-input inverting MUX gate. +//- +//- Truth table: A B S | Y +//- -------+--- +//- 0 - 0 | 1 +//- 1 - 0 | 0 +//- - 0 1 | 1 +//- - 1 1 | 0 +//- +module \$_NMUX_ (A, B, S, Y); +input A, B, S; +output Y; +assign Y = S ? !B : !A; +endmodule + +// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| +//- //- $_MUX4_ (A, B, C, D, S, T, Y) //- //- A 4-input MUX gate. |