diff options
| author | Eddie Hung <eddie@fpgeh.com> | 2019-08-07 13:44:08 -0700 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-08-07 13:44:08 -0700 |
| commit | e3d898dccb3cf535a213f313693b2b7a4ede7c68 (patch) | |
| tree | ca5dfdf506a9a5bc37178eaa06f0d285b7649ff5 /techlibs/common | |
| parent | cdf9c801347693c273309694685b2080ef00fd02 (diff) | |
| parent | 3414ee1e3fe37d4bf383621542828d4fc8fc987f (diff) | |
| download | yosys-e3d898dccb3cf535a213f313693b2b7a4ede7c68.tar.gz yosys-e3d898dccb3cf535a213f313693b2b7a4ede7c68.tar.bz2 yosys-e3d898dccb3cf535a213f313693b2b7a4ede7c68.zip | |
Merge remote-tracking branch 'origin/master' into xc7dsp
Diffstat (limited to 'techlibs/common')
| -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. |