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add -noalu and -json option for apicula

This commit is contained in:
Pepijn de Vos 2020-11-30 11:43:12 +01:00
parent 2116c58581
commit f155826a70
1 changed files with 32 additions and 3 deletions
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33
techlibs/gowin/synth_gowin.cc
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@ -44,6 +44,11 @@ struct SynthGowinPass : public ScriptPass
log(" write the design to the specified Verilog netlist file. writing of an\n"); log(" write the design to the specified Verilog netlist file. writing of an\n");
log(" output file is omitted if this parameter is not specified.\n"); log(" output file is omitted if this parameter is not specified.\n");
log("\n"); log("\n");
log(" -json <file>\n");
log(" write the design to the specified JSON netlist file. writing of an\n");
log(" output file is omitted if this parameter is not specified.\n");
log(" This disables features not yet supported by nexpnr-gowin.\n");
log("\n");
log(" -run <from_label>:<to_label>\n"); log(" -run <from_label>:<to_label>\n");
log(" only run the commands between the labels (see below). an empty\n"); log(" only run the commands between the labels (see below). an empty\n");
log(" from label is synonymous to 'begin', and empty to label is\n"); log(" from label is synonymous to 'begin', and empty to label is\n");
@ -70,6 +75,9 @@ struct SynthGowinPass : public ScriptPass
log(" -noiopads\n"); log(" -noiopads\n");
log(" do not emit IOB at top level ports\n"); log(" do not emit IOB at top level ports\n");
log("\n"); log("\n");
log(" -noalu\n");
log(" do not use ALU cells\n");
log("\n");
log(" -abc9\n"); log(" -abc9\n");
log(" use new ABC9 flow (EXPERIMENTAL)\n"); log(" use new ABC9 flow (EXPERIMENTAL)\n");
log("\n"); log("\n");
@ -79,13 +87,14 @@ struct SynthGowinPass : public ScriptPass
log("\n"); log("\n");
} }
string top_opt, vout_file; string top_opt, vout_file, json_file;
bool retime, nobram, nolutram, flatten, nodffe, nowidelut, abc9, noiopads; bool retime, nobram, nolutram, flatten, nodffe, nowidelut, abc9, noiopads, noalu;
void clear_flags() override void clear_flags() override
{ {
top_opt = "-auto-top"; top_opt = "-auto-top";
vout_file = ""; vout_file = "";
json_file = "";
retime = false; retime = false;
flatten = true; flatten = true;
nobram = false; nobram = false;
@ -94,6 +103,7 @@ struct SynthGowinPass : public ScriptPass
nowidelut = false; nowidelut = false;
abc9 = false; abc9 = false;
noiopads = false; noiopads = false;
noalu = false;
} }
void execute(std::vector<std::string> args, RTLIL::Design *design) override void execute(std::vector<std::string> args, RTLIL::Design *design) override
@ -112,6 +122,14 @@ struct SynthGowinPass : public ScriptPass
vout_file = args[++argidx]; vout_file = args[++argidx];
continue; continue;
} }
if (args[argidx] == "-json" && argidx+1 < args.size()) {
json_file = args[++argidx];
nobram = true;
nolutram = true;
nowidelut = true;
noalu = true;
continue;
}
if (args[argidx] == "-run" && argidx+1 < args.size()) { if (args[argidx] == "-run" && argidx+1 < args.size()) {
size_t pos = args[argidx+1].find(':'); size_t pos = args[argidx+1].find(':');
if (pos == std::string::npos) if (pos == std::string::npos)
@ -144,6 +162,10 @@ struct SynthGowinPass : public ScriptPass
nowidelut = true; nowidelut = true;
continue; continue;
} }
if (args[argidx] == "-noalu") {
noalu = true;
continue;
}
if (args[argidx] == "-abc9") { if (args[argidx] == "-abc9") {
abc9 = true; abc9 = true;
continue; continue;
@ -210,7 +232,11 @@ struct SynthGowinPass : public ScriptPass
if (check_label("map_gates")) if (check_label("map_gates"))
{ {
if (noalu) {
run("techmap -map +/techmap.v");
} else {
run("techmap -map +/techmap.v -map +/gowin/arith_map.v"); run("techmap -map +/techmap.v -map +/gowin/arith_map.v");
}
run("opt -fast"); run("opt -fast");
if (retime || help_mode) if (retime || help_mode)
run("abc -dff -D 1", "(only if -retime)"); run("abc -dff -D 1", "(only if -retime)");
@ -270,6 +296,9 @@ struct SynthGowinPass : public ScriptPass
if (!vout_file.empty() || help_mode) if (!vout_file.empty() || help_mode)
run(stringf("write_verilog -decimal -attr2comment -defparam -renameprefix gen %s", run(stringf("write_verilog -decimal -attr2comment -defparam -renameprefix gen %s",
help_mode ? "<file-name>" : vout_file.c_str())); help_mode ? "<file-name>" : vout_file.c_str()));
if (!json_file.empty() || help_mode)
run(stringf("write_json %s",
help_mode ? "<file-name>" : json_file.c_str()));
} }
} }
} SynthGowinPass; } SynthGowinPass;