struct SynthAchronixPass : public ScriptPass {
SynthAchronixPass() : ScriptPass("synth_achronix", "synthesis for Acrhonix Speedster22i FPGAs.") { }
- virtual void help() YS_OVERRIDE
+ void help() YS_OVERRIDE
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
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");
string top_opt, family_opt, vout_file;
bool retime, flatten;
- virtual void clear_flags() YS_OVERRIDE
+ void clear_flags() YS_OVERRIDE
{
top_opt = "-auto-top";
vout_file = "";
flatten = true;
}
- virtual void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
+ void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
{
string run_from, run_to;
clear_flags();
run_to = args[argidx].substr(pos+1);
continue;
}
- if (args[argidx] == "-flatten") {
- flatten = true;
+ if (args[argidx] == "-noflatten") {
+ flatten = false;
continue;
}
if (args[argidx] == "-retime") {
extra_args(args, argidx, design);
if (!design->full_selection())
- log_cmd_error("This comannd only operates on fully selected designs!\n");
+ log_cmd_error("This command only operates on fully selected designs!\n");
log_header(design, "Executing SYNTH_ACHRONIX pass.\n");
log_push();
log_pop();
}
- virtual void script() YS_OVERRIDE
+ void script() YS_OVERRIDE
{
if (check_label("begin"))
{
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");
}