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xilinx: Use dfflegalize.

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This commit is contained in:
Marcelina Kościelnicka 2020-06-23 18:51:51 +02:00
parent 7ed9d18907
commit f313211c32
6 changed files with 131 additions and 484 deletions
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21
techlibs/xilinx/synth_xilinx.cc
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@ -342,13 +342,6 @@ struct SynthXilinxPass : public ScriptPass
std::string lut_size_s = std::to_string(lut_size);
if (help_mode)
lut_size_s = "[46]";
std::string ff_map_file;
if (help_mode)
ff_map_file = "+/xilinx/{family}_ff_map.v";
else if (family == "xc6s")
ff_map_file = "+/xilinx/xc6s_ff_map.v";
else
ff_map_file = "+/xilinx/xc7_ff_map.v";
if (check_label("begin")) {
std::string read_args;
@ -595,11 +588,17 @@ struct SynthXilinxPass : public ScriptPass
run("clean");
}
if (check_label("map_ffs", "('-abc9' only)")) {
if (check_label("map_ffs")) {
if (family == "xc6s")
run("dfflegalize -cell $_DFFE_?P?P_ r -cell $_SDFFE_?P?P_ r -cell $_DLATCH_?P?_ r", "(for xc6s)");
else if (family == "xc6v" || family == "xc7" || family == "xcu" || family == "xcup")
run("dfflegalize -cell $_DFFE_?P?P_ 01 -cell $_SDFFE_?P?P_ 01 -cell $_DLATCH_?P?_ 01", "(for xc6v, xc7, xcu, xcup)");
else
run("dfflegalize -cell $_DFFE_?P?P_ 01 -cell $_DFFSRE_?PPP_ 01 -cell $_SDFFE_?P?P_ 01 -cell $_DLATCH_?P?_ 01 -cell $_DLATCHSR_?PP_ 01", "(for xc5v and older)");
if (abc9 || help_mode) {
if (dff || help_mode)
run("zinit -all w:* t:$_DFF_?_ t:$_DFFE_??_ t:$_SDFF*", "('-dff' only)");
run("techmap -map " + ff_map_file);
run("zinit -all w:* t:$_SDFFE_*", "('-dff' only)");
run("techmap -map +/xilinx/ff_map.v", "('-abc9' only)");
}
}
@ -659,7 +658,7 @@ struct SynthXilinxPass : public ScriptPass
run("xilinx_srl -fixed -minlen 3", "(skip if '-nosrl')");
std::string techmap_args = "-map +/xilinx/lut_map.v -map +/xilinx/cells_map.v";
if (help_mode || !abc9)
techmap_args += stringf(" -map %s", ff_map_file.c_str());
techmap_args += stringf(" -map +/xilinx/ff_map.v");
techmap_args += " -D LUT_WIDTH=" + lut_size_s;
run("techmap " + techmap_args);
if (help_mode)