mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-11-03 21:09:12 +00:00
Code Activity

defult nowidelut for xo2/3/3d

Browse source
This commit is contained in:
Miodrag Milanovic 2023-08-29 10:08:55 +02:00
parent 572ad341b7
commit 792cf8326e
1 changed files with 12 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

12
techlibs/lattice/synth_lattice.cc
View file

@ -102,6 +102,10 @@ struct SynthLatticePass : public ScriptPass
log("\n");
log(" -nowidelut\n");
log(" do not use PFU muxes to implement LUTs larger than LUT4s\n");
log(" (by default enabled on MachXO2/XO3/XO3D)\n");
log("\n");
log(" -widelut\n");
log(" force use of PFU muxes to implement LUTs larger than LUT4s\n");
log("\n");
log(" -asyncprld\n");
log(" use async PRLD mode to implement ALDFF (EXPERIMENTAL)\n");
@ -163,6 +167,7 @@ struct SynthLatticePass : public ScriptPass
void execute(std::vector<std::string> args, RTLIL::Design *design) override
{
string run_from, run_to;
bool force_widelut = false;
clear_flags();
size_t argidx;
@ -230,6 +235,12 @@ struct SynthLatticePass : public ScriptPass
}
if (args[argidx] == "-nowidelut" || /*deprecated alias*/ args[argidx] == "-nomux") {
nowidelut = true;
force_widelut = true;
continue;
}
if (args[argidx] == "-widelut") {
nowidelut = false;
force_widelut = true;
continue;
}
if (args[argidx] == "-abc2") {
@ -273,6 +284,7 @@ struct SynthLatticePass : public ScriptPass
arith_map = "_ccu2d";
brams_map = "_8kc";
have_dsp = false;
if (!force_widelut) nowidelut = true;
/* } else if (family == "xo" ||
family == "pm") {
} else if (family == "xp" ||