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Merge branch 'koriakin/xc7nocarrymux' into xaig

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This commit is contained in:
Eddie Hung 2019-06-26 10:04:01 -07:00
commit 799b18263f
2 changed files with 26 additions and 9 deletions
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22
techlibs/xilinx/synth_xilinx.cc
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@ -73,6 +73,12 @@ struct SynthXilinxPass : public ScriptPass
log(" -nosrl\n");
log(" disable inference of shift registers\n");
log("\n");
log(" -nocarry\n");
log(" do not use XORCY/MUXCY/CARRY4 cells in output netlist\n");
log("\n");
log(" -nowidelut\n");
log(" do not use MUXF[78] resources to implement LUTs larger than LUT6s\n");
log("\n");
log(" -run <from_label>:<to_label>\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");
@ -94,7 +100,7 @@ struct SynthXilinxPass : public ScriptPass
}
std::string top_opt, edif_file, blif_file, abc, arch;
bool flatten, retime, vpr, nocarry, nobram, nodram, nosrl;
bool flatten, retime, vpr, nobram, nodram, nosrl, nocarry, nowidelut;
void clear_flags() YS_OVERRIDE
{
@ -109,6 +115,8 @@ struct SynthXilinxPass : public ScriptPass
nobram = false;
nodram = false;
nosrl = false;
nocarry = false;
nowidelut = false;
arch = "xc7";
}
@ -152,6 +160,14 @@ struct SynthXilinxPass : public ScriptPass
retime = true;
continue;
}
if (args[argidx] == "-nocarry") {
nocarry = true;
continue;
}
if (args[argidx] == "-nowidelut") {
nowidelut = true;
continue;
}
if (args[argidx] == "-vpr") {
vpr = true;
continue;
@ -285,7 +301,9 @@ struct SynthXilinxPass : public ScriptPass
if (abc == "abc9")
run(abc + " -lut +/xilinx/abc_xc7.lut -box +/xilinx/abc_xc7.box -W " + XC7_WIRE_DELAY + string(retime ? " -dff" : ""));
else if (help_mode)
run(abc + " -luts 2:2,3,6:5,10,20 [-dff]");
run("abc -luts 2:2,3,6:5[,10,20] [-dff]", "(skip if 'nowidelut', only for '-retime')");
else if (nowidelut)
run("abc -luts 2:2,3,6:5" + string(retime ? " -dff" : ""));
else
run(abc + " -luts 2:2,3,6:5,10,20" + string(retime ? " -dff" : ""));
run("clean");