mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-04-24 01:25:33 +00:00
Code Activity

inline all tests. Add switch to remove init values as PolarFire DFFs do not support init

Browse source
This commit is contained in:
chunlin min 2024-07-08 17:03:03 -04:00
parent 0afb5e28fb
commit 3db69b7a10
15 changed files with 152 additions and 288 deletions
Download patch file Download diff file Expand all files Collapse all files

17
techlibs/microchip/synth_microchip.cc
View file

@ -90,6 +90,9 @@ struct SynthMicrochipPass : public ScriptPass {
log(" -noabc9\n");
log(" Use classic ABC flow instead of ABC9\n");
log("\n");
log(" -discard-ffinit\n");
log(" discard FF init value instead of emitting an error\n");
log("\n");
log("\n");
log("The following commands are executed by this synthesis command:\n");
help_script();
@ -99,6 +102,7 @@ struct SynthMicrochipPass : public ScriptPass {
std::string top_opt, edif_file, blif_file, vlog_file, family;
bool flatten, retime, noiopad, noclkbuf, nobram, nocarry, nowidelut, nodsp;
bool abc9, dff;
bool discard_ffinit;
int lut_size;
// debug dump switches
@ -122,6 +126,7 @@ struct SynthMicrochipPass : public ScriptPass {
abc9 = true;
dff = false;
lut_size = 4;
discard_ffinit = false;
debug_memory = false;
debug_carry = false;
@ -218,6 +223,10 @@ struct SynthMicrochipPass : public ScriptPass {
debug_carry = true;
continue;
}
if (args[argidx] == "-discard-ffinit") {
discard_ffinit = true;
continue;
}
break;
}
extra_args(args, argidx, design);
@ -314,6 +323,8 @@ struct SynthMicrochipPass : public ScriptPass {
run("opt");
run("memory -nomap");
run("opt_clean");
if (discard_ffinit || help_mode)
run("attrmap -remove init", "(only if -discard-ffinit)");
}
if (check_label("map_memory")) {
@ -454,15 +465,15 @@ struct SynthMicrochipPass : public ScriptPass {
// D-flop with async reset and enable
// posedge CLK, active low reset to 1 or 0, active high EN
params += " -cell $_DFFE_PN?P_ 01";
params += " -cell $_DFFE_PN?P_ x";
// D-flop with sync reset and enable, enable takes priority over reset
// posedge CLK, active low reset to 1 or 0, active high EN
params += " -cell $_SDFFCE_PN?P_ 01";
params += " -cell $_SDFFCE_PN?P_ x";
// D-latch + reset to 0/1
// posedge CLK, active low reset to 1 or 0
params += " -cell $_DLATCH_PN?_ 01";
params += " -cell $_DLATCH_PN?_ x";
run("dfflegalize" + params, "(Converts FFs to supported types)");
}