mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-08-07 11:41:23 +00:00
Code Activity

dfflibmap: propagate negated next_state to output correctly

Browse source
This commit is contained in:
Emil J. Tywoniak 2025-06-24 12:01:12 +02:00
parent 44aa313ba9
commit 778079b058
3 changed files with 160 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

28
tests/techmap/dfflibmap_dffsr_not_next.lib Normal file
View file

@ -0,0 +1,28 @@
library (test_not_next) {
cell (dffsr_not_next) {
area : 1.0;
pin (Q) {
direction : output;
function : "STATE";
}
pin (CLK) {
clock : true;
direction : input;
}
pin (D) {
direction : input;
}
pin (RN) {
direction : input;
}
pin (SN) {
direction : input;
}
ff (STATE,STATEN) {
clear : "!SN";
clocked_on : "CLK";
next_state : "!D";
preset : "!RN";
}
}
}