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Add new DFF types, and added "-nodffe" option

This commit is contained in:
Miodrag Milanovic 2024-04-29 08:18:04 +02:00
parent 0c4bbf7e4b
commit 198fc963ca
1 changed files with 17 additions and 2 deletions
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19
techlibs/nanoxplore/synth_nanoxplore.cc
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@ -73,6 +73,9 @@ struct SynthNanoXplorePass : public ScriptPass
log(" -nocy\n");
log(" do not map adders to CY cells\n");
log("\n");
log(" -nodffe\n");
log(" do not use flipflops with L in output netlist\n");
log("\n");
log(" -norfram\n");
log(" do not use Register File RAM cells in output netlist\n");
log("\n");
@ -97,7 +100,7 @@ struct SynthNanoXplorePass : public ScriptPass
}
string top_opt, json_file, family;
bool flatten, abc9, nocy, norfram, nobram, nodsp, iopad, no_rw_check;
bool flatten, abc9, nocy, nodffe, norfram, nobram, nodsp, iopad, no_rw_check;
std::string postfix;
void clear_flags() override
@ -108,6 +111,7 @@ struct SynthNanoXplorePass : public ScriptPass
flatten = true;
abc9 = false;
nocy = false;
nodffe = false;
norfram = false;
nobram = false;
nodsp = false;
@ -160,6 +164,10 @@ struct SynthNanoXplorePass : public ScriptPass
nocy = true;
continue;
}
if (args[argidx] == "-nodffe") {
nodffe = true;
continue;
}
if (args[argidx] == "-norfram") {
norfram = true;
continue;
@ -294,7 +302,14 @@ struct SynthNanoXplorePass : public ScriptPass
if (check_label("map_ffs"))
{
run("dfflegalize -cell $_DFF_?P?_ 0 -cell $_SDFF_?P?_ 0 -cell $_DLATCH_?_ x"); //-cell $_ALDFF_?P_ 0
std::string dfflegalize_args = " -cell $_DFF_?_ 0 -cell $_DFF_?P?_ 0 -cell $_SDFF_?P?_ 0";
if (help_mode) {
dfflegalize_args += " [-cell $_DFFE_PP_ 0 -cell $_DFFE_NN_ 0 -cell $_DFFE_?P?P_ 0 -cell $_SDFFE_?P?P_ 0]";
} else if (!nodffe) {
dfflegalize_args += " -cell $_DFFE_PP_ 0 -cell $_DFFE_NN_ 0 -cell $_DFFE_?P?P_ 0 -cell $_SDFFE_?P?P_ 0";
}
dfflegalize_args += " -cell $_DLATCH_?_ x";
run("dfflegalize" + dfflegalize_args,"($_*DFFE_* only if not -nodffe)");
run("techmap -map +/nanoxplore/latches_map.v");
run("techmap -map +/nanoxplore/cells_map.v");
run("opt_expr -undriven -mux_undef");