mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-11-04 13:29:12 +00:00
Code Activity

Merge branch 'koriakin/xc7nocarrymux' into xaig

Browse source
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
Download patch file Download diff file Expand all files Collapse all files

13
techlibs/ecp5/synth_ecp5.cc
View file

@ -76,7 +76,7 @@ struct SynthEcp5Pass : public ScriptPass
log(" -nodram\n"); log(" -nodram\n");
log(" do not use distributed RAM cells in output netlist\n"); log(" do not use distributed RAM cells in output netlist\n");
log("\n"); log("\n");
log(" -nomux\n"); log(" -nowidelut\n");
log(" do not use PFU muxes to implement LUTs larger than LUT4s\n"); log(" do not use PFU muxes to implement LUTs larger than LUT4s\n");
log("\n"); log("\n");
log(" -abc2\n"); log(" -abc2\n");
@ -96,7 +96,7 @@ struct SynthEcp5Pass : public ScriptPass
} }
string top_opt, blif_file, edif_file, json_file; string top_opt, blif_file, edif_file, json_file;
bool noccu2, nodffe, nobram, nodram, nomux, flatten, retime, abc2, abc9, vpr; bool noccu2, nodffe, nobram, nodram, nowidelut, flatten, retime, abc2, abc9, vpr;
void clear_flags() YS_OVERRIDE void clear_flags() YS_OVERRIDE
{ {
@ -108,7 +108,7 @@ struct SynthEcp5Pass : public ScriptPass
nodffe = false; nodffe = false;
nobram = false; nobram = false;
nodram = false; nodram = false;
nomux = false; nowidelut = false;
flatten = true; flatten = true;
retime = false; retime = false;
abc2 = false; abc2 = false;
@ -176,8 +176,8 @@ struct SynthEcp5Pass : public ScriptPass
nodram = true; nodram = true;
continue; continue;
} }
if (args[argidx] == "-nomux") { if (args[argidx] == "-nowidelut" || args[argidx] == "-nomux") {
nomux = true; nowidelut = true;
continue; continue;
} }
if (args[argidx] == "-abc2") { if (args[argidx] == "-abc2") {
@ -275,12 +275,11 @@ struct SynthEcp5Pass : public ScriptPass
if (abc9) { if (abc9) {
run("abc9 -lut +/ecp5/abc_5g.lut -box +/ecp5/abc_5g.box -W 200"); run("abc9 -lut +/ecp5/abc_5g.lut -box +/ecp5/abc_5g.box -W 200");
} else { } else {
if (nomux) if (nowidelut)
run("abc -lut 4 -dress"); run("abc -lut 4 -dress");
else else
run("abc -lut 4:7 -dress"); run("abc -lut 4:7 -dress");
} }
run("clean"); run("clean");
} }

22
techlibs/xilinx/synth_xilinx.cc
View file

@ -73,6 +73,12 @@ struct SynthXilinxPass : public ScriptPass
log(" -nosrl\n"); log(" -nosrl\n");
log(" disable inference of shift registers\n"); log(" disable inference of shift registers\n");
log("\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(" -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");
@ -94,7 +100,7 @@ struct SynthXilinxPass : public ScriptPass
} }
std::string top_opt, edif_file, blif_file, abc, arch; 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 void clear_flags() YS_OVERRIDE
{ {
@ -109,6 +115,8 @@ struct SynthXilinxPass : public ScriptPass
nobram = false; nobram = false;
nodram = false; nodram = false;
nosrl = false; nosrl = false;
nocarry = false;
nowidelut = false;
arch = "xc7"; arch = "xc7";
} }
@ -152,6 +160,14 @@ struct SynthXilinxPass : public ScriptPass
retime = true; retime = true;
continue; continue;
} }
if (args[argidx] == "-nocarry") {
nocarry = true;
continue;
}
if (args[argidx] == "-nowidelut") {
nowidelut = true;
continue;
}
if (args[argidx] == "-vpr") { if (args[argidx] == "-vpr") {
vpr = true; vpr = true;
continue; continue;
@ -285,7 +301,9 @@ struct SynthXilinxPass : public ScriptPass
if (abc == "abc9") if (abc == "abc9")
run(abc + " -lut +/xilinx/abc_xc7.lut -box +/xilinx/abc_xc7.box -W " + XC7_WIRE_DELAY + string(retime ? " -dff" : "")); run(abc + " -lut +/xilinx/abc_xc7.lut -box +/xilinx/abc_xc7.box -W " + XC7_WIRE_DELAY + string(retime ? " -dff" : ""));
else if (help_mode) 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 else
run(abc + " -luts 2:2,3,6:5,10,20" + string(retime ? " -dff" : "")); run(abc + " -luts 2:2,3,6:5,10,20" + string(retime ? " -dff" : ""));
run("clean"); run("clean");