github.com/YosysHQ.yosys
1
0
Fork 0
mirror of synced 2026-04-13 17:08:00 +00:00
Code Issues Releases Wiki Activity

Elaborate muxpack doc

Browse Source
This commit is contained in:
Eddie Hung
2019-06-10 10:32:19 -07:00
parent 1dd7e23a20
commit 5b999ae68d
1 changed files with 6 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
passes/opt/muxpack.cc
View File

@@ -302,8 +302,12 @@ struct MuxpackPass : public Pass {
log(" muxpack [selection]\n");
log("\n");
log("This pass converts cascaded chains of $pmux cells (e.g. those create from case\n");
log("constructs) and $mux cells (e.g. those created by if-else constructs) into \n");
log("into $pmux cells.\n");
log("constructs) and $mux cells (e.g. those created by if-else constructs) into\n");
log("$pmux cells.\n");
log("\n");
log("This optimisation is conservative --- it will only pack $mux or $pmux cells with\n");
log("other such cells if it can be certain that the select lines are mutually\n");
log("exclusive.\n");
log("\n");
}
void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE