log(" do not flatten design before synthesis\n");
log("\n");
log(" -retime\n");
- log(" run 'abc' with -dff option\n");
+ log(" run 'abc' with '-dff -D 1' options\n");
log("\n");
log("\n");
log("The following commands are executed by this synthesis command:\n");
run("opt -fast -mux_undef -undriven -fine -full");
run("memory_map");
run("opt -undriven -fine");
- run("dffsr2dff");
run("dff2dffe -direct-match $_DFF_*");
run("opt -fine");
run("techmap -map +/techmap.v");
run("clean -purge");
run("setundef -undriven -zero");
if (retime || help_mode)
- run("abc -markgroups -dff", "(only if -retime)");
+ run("abc -markgroups -dff -D 1", "(only if -retime)");
}
if (check_label("map_luts"))
{
- run("abc -lut 4" + string(retime ? " -dff" : ""));
+ run("abc -lut 4" + string(retime ? " -dff -D 1" : ""));
run("clean");
}